MISC-TN-009: Characterizing the RAM bandwidth of Mito8M SoM

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DMI-Mito-top.png Applies to MITO 8M
Warning-icon.png This technical note was validated against specific versions of hardware and software. What is described here may not work with other versions. Warning-icon.png


History[edit | edit source]

Version Date Notes
1.0.0 January 2020 First public release

Introduction[edit | edit source]

Mito8M is the first DAVE Embedded Systems' system-on-module (SoM) based on a core implementing the ARMv8-A architecture. Traditionally, ARM cores that are based on 32-bit ARMv7-A architecture exhibit a limited RAM bandwidth even if they are coupled with 64-bit width SDRAM banks. As an example, please see this Technical Note where we characterized the SDRAM bandwidth of Cortex A9-based Axel Lite SoM. When dealing with computationally heavy tasks, a limited RAM bandwidth efficiency may turn out to be a severe bottleneck bounding the overall performance.

Besides an intrinsic increased computational power over their predecessors, ARMv8-A-based SoC's are also expected to improve RAM bandwidth significantly. This technical note (TN for short) illustrates several benchmark tests that were run on Mito8M SoM to characterize its bandwidth. It is worth to remember that Mito8M is built upon the i.MX8M processor by NXP.

Testbed general configuration[edit | edit source]

This section illustrates the configuration settings common to all the tests performed. Basically, the testbed that was used is the same described in this TN.

SoC and SDRAM bank[edit | edit source]

The SoC model is i.MX8M Quad: 

armbian@Mito8M:~/devel/lmbench/tmp$ lscpu
Architecture:        aarch64
Byte Order:          Little Endian
CPU(s):              4
On-line CPU(s) list: 0-3
Thread(s) per core:  1
Core(s) per socket:  4
Socket(s):           1
NUMA node(s):        1
Vendor ID:           ARM
Model:               4
Model name:          Cortex-A53
Stepping:            r0p4
CPU max MHz:         1300.0000
CPU min MHz:         800.0000
BogoMIPS:            16.66
L1d cache:           unknown size
L1i cache:           unknown size
L2 cache:            unknown size
NUMA node0 CPU(s):   0-3
Flags:               fp asimd evtstrm aes pmull sha1 sha2 crc32 cpuid

This processor is capable of running either at 800 MHz or 1.3 GHz. The tests were performed at either frequencies in order to determine how the it affects the RAM bandwidth.

The following table details the characteristics of the SDRAM bank connected to the SoC.

Subsystem Feature Platform
Mito8M
SoC SoC NXP i.MX8M Quad
ARM core(s) 4 x Cortex A53
ARM core frequency

[MHz]

800 or 1300
L1 cache (D)

[kB]

32
L1 cache (I)

[kB]

32
L2 cache

[MB]

1
SDRAM Type LPDDR4
Frequency

[MHz]

1600
Bus witdth

[bit]

32
Theoretical bandwidth

[Gb/s]

102.4
Theoretical bandwidth

[GB/s]

12.8
Size

[MB]

3072

Software configuration[edit | edit source]

  • Linux kernel: 4.14.98
  • Root file system: Debian GNU/Linux 10 (buster)
  • Architecture: aarch64
  • Governor: userspace @ 800 MHz or 1300 MHz
root@Mito8M:~# echo userspace > /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
root@Mito8M:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor
userspace
root@Mito8M:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_cur_freq
800000


Some benchmarks were built natively on the platform under test. For the sake of completeness, the version of the GCC compiler is then indicated as well: 

armbian@Mito8M:~/devel/lmbench$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/aarch64-linux-gnu/8/lto-wrapper
Target: aarch64-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Debian 8.3.0-6' --with-bugurl=file:///usr/share/doc/gcc-8/README.Bugs --enable-languages=c,ada,c++,go,d,fortran,objc,obj-c++ --prefix=/usr --with-gcc-major-version-only --program-suffix=-8 --program-prefix=aarch64-linux-gnu- --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --libdir=/usr/lib --enable-nls --enable-bootstrap --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --with-default-libstdcxx-abi=new --enable-gnu-unique-object --disable-libquadmath --disable-libquadmath-support --enable-plugin --enable-default-pie --with-system-zlib --disable-libphobos --enable-multiarch --enable-fix-cortex-a53-843419 --disable-werror --enable-checking=release --build=aarch64-linux-gnu --host=aarch64-linux-gnu --target=aarch64-linux-gnu
Thread model: posix
gcc version 8.3.0 (Debian 8.3.0-6)

Overall results[edit | edit source]

This section illustrates the overall results achieved by the benchmarks.

STREAM[edit | edit source]

TBD

LMbench[edit | edit source]

TBD

pmbw[edit | edit source]

TBD

stressapptest[edit | edit source]

800 MHz

armbian@Mito8M:~/devel/stressapptest/stressapptest/src$ ./stressapptest -M 32 -s 5 -v 20 2020/01/27-16:23:44(CET) Log: Commandline - ./stressapptest -M 32 -s 5 -v 20 2020/01/27-16:23:44(CET) Stats: SAT revision 1.0.9_autoconf, 64 bit binary 2020/01/27-16:23:44(CET) Log: armbian @ Mito8M on Mon Jan 27 16:08:57 CET 2020 from open source release 2020/01/27-16:23:44(CET) Log: 1 nodes, 4 cpus. 2020/01/27-16:23:44(CET) Log: Defaulting to 4 copy threads 2020/01/27-16:23:44(CET) Log: Prefer plain malloc memory allocation. 2020/01/27-16:23:44(CET) Log: Using mmap() allocation at 0xffff8a31a000. 2020/01/27-16:23:44(CET) Stats: Starting SAT, 32M, 5 seconds 2020/01/27-16:23:44(CET) Log: initialized 120 data patterns 2020/01/27-16:23:44(CET) Log: Allocating pages, Total: 32 Free: 12 2020/01/27-16:23:44(CET) Starting Fill threads: 8 threads, 32 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 0: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 1: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 2: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 3: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 4: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 5: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 6: 4 pages 2020/01/27-16:23:44(CET) Starting Fill Threads 7: 4 pages 2020/01/27-16:23:44(CET) Log: Thread 0 running on core ID 0 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 0 2020/01/27-16:23:44(CET) Log: Thread 1 running on core ID 1 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 1 2020/01/27-16:23:44(CET) Log: Thread 2 running on core ID 0 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 2 2020/01/27-16:23:44(CET) Log: Thread 3 running on core ID 1 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 3 2020/01/27-16:23:44(CET) Log: Thread 4 running on core ID 2 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 4 2020/01/27-16:23:44(CET) Log: Completed 0: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 3: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 2: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 1: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Thread 5 running on core ID 1 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 5 2020/01/27-16:23:44(CET) Log: Thread 7 running on core ID 3 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 7 2020/01/27-16:23:44(CET) Log: Thread 6 running on core ID 0 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting fill thread 6 2020/01/27-16:23:44(CET) Log: Completed 4: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 5: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 7: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Completed 6: Fill thread. Status 1, 4 pages filled 2020/01/27-16:23:44(CET) Log: Done filling pages. 2020/01/27-16:23:44(CET) Log: Allocating pages. 2020/01/27-16:23:44(CET) Log: Done allocating pages. 2020/01/27-16:23:44(CET) Log: Region 0: 32. 2020/01/27-16:23:44(CET) Log: Region mask: 0x1 2020/01/27-16:23:44(CET) Log: Installing signal handlers 2020/01/27-16:23:44(CET) Log: Launching worker threads 2020/01/27-16:23:44(CET) Log: Starting worker threads 2020/01/27-16:23:44(CET) Log: Starting invert threads 2020/01/27-16:23:44(CET) Log: Starting disk stress threads 2020/01/27-16:23:44(CET) Log: Starting cpu stress threads 2020/01/27-16:23:44(CET) Log: Initializing WorkerStatus objects 2020/01/27-16:23:44(CET) Log: Spawning worker threads 2020/01/27-16:23:44(CET) Log: Spawning thread 1 2020/01/27-16:23:44(CET) Log: Spawning thread 2 2020/01/27-16:23:44(CET) Log: Spawning thread 3 2020/01/27-16:23:44(CET) Log: available CPU mask - F 2020/01/27-16:23:44(CET) Log: Spawning thread 4 2020/01/27-16:23:44(CET) Log: Spawning thread 0 2020/01/27-16:23:44(CET) Log: available CPU mask - F 2020/01/27-16:23:44(CET) Log: Starting countdown with 5 seconds 2020/01/27-16:23:44(CET) Log: Thread 4 running on core ID 3 mask 8 (8). 2020/01/27-16:23:44(CET) Log: Starting copy thread 4: cpu 8, mem ffffffff 2020/01/27-16:23:44(CET) Log: available CPU mask - F 2020/01/27-16:23:44(CET) Log: Thread 0 running on core ID 2 mask F (F). 2020/01/27-16:23:44(CET) Log: Starting system error poll thread 0 2020/01/27-16:23:44(CET) Log: Thread 3 running on core ID 1 mask 2 (2). 2020/01/27-16:23:44(CET) Log: Thread 1 running on core ID 0 mask 1 (1). 2020/01/27-16:23:44(CET) Log: Starting copy thread 1: cpu 1, mem ffffffff 2020/01/27-16:23:44(CET) Log: Starting copy thread 3: cpu 2, mem ffffffff 2020/01/27-16:23:44(CET) Log: available CPU mask - F 2020/01/27-16:23:44(CET) Log: Thread 2 running on core ID 2 mask 4 (4). 2020/01/27-16:23:44(CET) Log: Starting copy thread 2: cpu 4, mem ffffffff 2020/01/27-16:23:49(CET) Log: Joining worker threads 2020/01/27-16:23:49(CET) Log: Joining thread 1 2020/01/27-16:23:49(CET) Log: Finished system error poll thread 0: 0 errors 2020/01/27-16:23:49(CET) Log: Completed 1: Copy thread. Status 1, 3410 pages copied 2020/01/27-16:23:49(CET) Log: Joining thread 2 2020/01/27-16:23:49(CET) Log: Completed 4: Copy thread. Status 1, 3446 pages copied 2020/01/27-16:23:49(CET) Log: Completed 2: Copy thread. Status 1, 3415 pages copied 2020/01/27-16:23:49(CET) Log: Joining thread 3 2020/01/27-16:23:49(CET) Log: Completed 3: Copy thread. Status 1, 3440 pages copied 2020/01/27-16:23:49(CET) Log: Joining thread 4 2020/01/27-16:23:49(CET) Log: Joining thread 0 2020/01/27-16:23:49(CET) Log: Reads per page histogram 2020/01/27-16:23:49(CET) Log: 256 - 512: 24 2020/01/27-16:23:49(CET) Log: 512 - 1024: 8 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Finished countdown, begin to result check 2020/01/27-16:23:49(CET) Log: Spawning thread 5 2020/01/27-16:23:49(CET) Log: Spawning thread 6 2020/01/27-16:23:49(CET) Log: Thread 5 running on core ID 1 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 5 2020/01/27-16:23:49(CET) Log: Thread 6 running on core ID 3 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 6 2020/01/27-16:23:49(CET) Log: Spawning thread 7 2020/01/27-16:23:49(CET) Log: Spawning thread 8 2020/01/27-16:23:49(CET) Log: Spawning thread 9 2020/01/27-16:23:49(CET) Log: Spawning thread 10 2020/01/27-16:23:49(CET) Log: Spawning thread 11 2020/01/27-16:23:49(CET) Log: Spawning thread 12 2020/01/27-16:23:49(CET) Log: Joining thread 5 2020/01/27-16:23:49(CET) Log: Thread 12 running on core ID 0 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 12 2020/01/27-16:23:49(CET) Log: Thread 8 running on core ID 2 mask F (F). 2020/01/27-16:23:49(CET) Log: Thread 9 running on core ID 2 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 9 2020/01/27-16:23:49(CET) Log: Starting Check thread 8 2020/01/27-16:23:49(CET) Log: Completed 12: Check thread. Status 1, 4 pages checked 2020/01/27-16:23:49(CET) Log: Completed 5: Check thread. Status 1, 7 pages checked 2020/01/27-16:23:49(CET) Log: Completed 6: Check thread. Status 1, 7 pages checked 2020/01/27-16:23:49(CET) Log: Joining thread 6 2020/01/27-16:23:49(CET) Log: Joining thread 7 2020/01/27-16:23:49(CET) Log: Thread 10 running on core ID 1 mask F (F). 2020/01/27-16:23:49(CET) Log: Thread 11 running on core ID 0 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 10 2020/01/27-16:23:49(CET) Log: Starting Check thread 11 2020/01/27-16:23:49(CET) Log: Completed 10: Check thread. Status 1, 0 pages checked 2020/01/27-16:23:49(CET) Log: Completed 11: Check thread. Status 1, 0 pages checked 2020/01/27-16:23:49(CET) Log: Thread 7 running on core ID 1 mask F (F). 2020/01/27-16:23:49(CET) Log: Starting Check thread 7 2020/01/27-16:23:49(CET) Log: Completed 7: Check thread. Status 1, 0 pages checked 2020/01/27-16:23:49(CET) Log: Completed 8: Check thread. Status 1, 2 pages checked 2020/01/27-16:23:49(CET) Log: Joining thread 8 2020/01/27-16:23:49(CET) Log: Completed 9: Check thread. Status 1, 0 pages checked 2020/01/27-16:23:49(CET) Log: Joining thread 9 2020/01/27-16:23:49(CET) Log: Joining thread 10 2020/01/27-16:23:49(CET) Log: Joining thread 11 2020/01/27-16:23:49(CET) Log: Joining thread 12 2020/01/27-16:23:49(CET) Log: Join all outstanding threads 2020/01/27-16:23:49(CET) Log: Reaping thread status 1 2020/01/27-16:23:49(CET) Log: Thread 1 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 2 2020/01/27-16:23:49(CET) Log: Thread 2 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 3 2020/01/27-16:23:49(CET) Log: Thread 3 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 4 2020/01/27-16:23:49(CET) Log: Thread 4 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 0 2020/01/27-16:23:49(CET) Log: Thread 0 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 5 2020/01/27-16:23:49(CET) Log: Thread 5 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 6 2020/01/27-16:23:49(CET) Log: Thread 6 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 7 2020/01/27-16:23:49(CET) Log: Thread 7 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 8 2020/01/27-16:23:49(CET) Log: Thread 8 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 9 2020/01/27-16:23:49(CET) Log: Thread 9 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 10 2020/01/27-16:23:49(CET) Log: Thread 10 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 11 2020/01/27-16:23:49(CET) Log: Thread 11 found 0 hardware incidents 2020/01/27-16:23:49(CET) Log: Reaping thread status 12 2020/01/27-16:23:49(CET) Log: Thread 12 found 0 hardware incidents 2020/01/27-16:23:49(CET) Stats: Found 0 hardware incidents 2020/01/27-16:23:49(CET) Stats: Completed: 27422.00M in 5.00s 5482.17MB/s, with 0 hardware incidents, 0 errors 2020/01/27-16:23:49(CET) Stats: Memory Copy: 27422.00M at 5483.92MB/s 2020/01/27-16:23:49(CET) Stats: File Copy: 0.00M at 0.00MB/s 2020/01/27-16:23:49(CET) Stats: Net Copy: 0.00M at 0.00MB/s 2020/01/27-16:23:49(CET) Stats: Data Check: 0.00M at 0.00MB/s 2020/01/27-16:23:49(CET) Stats: Invert Data: 0.00M at 0.00MB/s 2020/01/27-16:23:49(CET) Stats: Disk: 0.00M at 0.00MB/s 2020/01/27-16:23:49(CET) Log: Deleting worker threads 2020/01/27-16:23:49(CET) Log: Deleting thread 1 2020/01/27-16:23:49(CET) Log: Deleting thread 2 2020/01/27-16:23:49(CET) Log: Deleting thread 3 2020/01/27-16:23:49(CET) Log: Deleting thread 4 2020/01/27-16:23:49(CET) Log: Deleting thread 0 2020/01/27-16:23:49(CET) Log: Destroying WorkerStatus objects 2020/01/27-16:23:49(CET) Log: Uninstalling signal handlers 2020/01/27-16:23:49(CET) 2020/01/27-16:23:49(CET) Status: PASS - please verify no corrected errors 2020/01/27-16:23:49(CET)


1300 MHz

armbian@Mito8M:~/devel/stressapptest/stressapptest/src$ ./stressapptest -M 32 -s 5 -v 20 2020/01/27-16:22:14(CET) Log: Commandline - ./stressapptest -M 32 -s 5 -v 20 2020/01/27-16:22:14(CET) Stats: SAT revision 1.0.9_autoconf, 64 bit binary 2020/01/27-16:22:14(CET) Log: armbian @ Mito8M on Mon Jan 27 16:08:57 CET 2020 from open source release 2020/01/27-16:22:14(CET) Log: 1 nodes, 4 cpus. 2020/01/27-16:22:14(CET) Log: Defaulting to 4 copy threads 2020/01/27-16:22:14(CET) Log: Prefer plain malloc memory allocation. 2020/01/27-16:22:14(CET) Log: Using mmap() allocation at 0xffff9e7ea000. 2020/01/27-16:22:14(CET) Stats: Starting SAT, 32M, 5 seconds 2020/01/27-16:22:14(CET) Log: initialized 120 data patterns 2020/01/27-16:22:14(CET) Log: Allocating pages, Total: 32 Free: 12 2020/01/27-16:22:14(CET) Starting Fill threads: 8 threads, 32 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 0: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 1: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 2: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 3: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 4: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 5: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 6: 4 pages 2020/01/27-16:22:14(CET) Starting Fill Threads 7: 4 pages 2020/01/27-16:22:14(CET) Log: Thread 0 running on core ID 1 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 0 2020/01/27-16:22:14(CET) Log: Thread 2 running on core ID 2 mask F (F). 2020/01/27-16:22:14(CET) Log: Thread 1 running on core ID 0 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 1 2020/01/27-16:22:14(CET) Log: Thread 4 running on core ID 3 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 4 2020/01/27-16:22:14(CET) Log: Starting fill thread 2 2020/01/27-16:22:14(CET) Log: Thread 3 running on core ID 2 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 3 2020/01/27-16:22:14(CET) Log: Completed 1: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 3: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 4: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Thread 7 running on core ID 3 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 7 2020/01/27-16:22:14(CET) Log: Thread 5 running on core ID 2 mask F (F). 2020/01/27-16:22:14(CET) Log: Thread 6 running on core ID 2 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting fill thread 6 2020/01/27-16:22:14(CET) Log: Starting fill thread 5 2020/01/27-16:22:14(CET) Log: Completed 0: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 6: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 7: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 5: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Completed 2: Fill thread. Status 1, 4 pages filled 2020/01/27-16:22:14(CET) Log: Done filling pages. 2020/01/27-16:22:14(CET) Log: Allocating pages. 2020/01/27-16:22:14(CET) Log: Done allocating pages. 2020/01/27-16:22:14(CET) Log: Region 0: 32. 2020/01/27-16:22:14(CET) Log: Region mask: 0x1 2020/01/27-16:22:14(CET) Log: Installing signal handlers 2020/01/27-16:22:14(CET) Log: Launching worker threads 2020/01/27-16:22:14(CET) Log: Starting worker threads 2020/01/27-16:22:14(CET) Log: Starting invert threads 2020/01/27-16:22:14(CET) Log: Starting disk stress threads 2020/01/27-16:22:14(CET) Log: Starting cpu stress threads 2020/01/27-16:22:14(CET) Log: Initializing WorkerStatus objects 2020/01/27-16:22:14(CET) Log: Spawning worker threads 2020/01/27-16:22:14(CET) Log: Spawning thread 1 2020/01/27-16:22:14(CET) Log: Spawning thread 2 2020/01/27-16:22:14(CET) Log: Spawning thread 3 2020/01/27-16:22:14(CET) Log: available CPU mask - F 2020/01/27-16:22:14(CET) Log: Spawning thread 4 2020/01/27-16:22:14(CET) Log: Spawning thread 0 2020/01/27-16:22:14(CET) Log: available CPU mask - F 2020/01/27-16:22:14(CET) Log: Thread 4 running on core ID 3 mask 8 (8). 2020/01/27-16:22:14(CET) Log: Starting countdown with 5 seconds 2020/01/27-16:22:14(CET) Log: Starting copy thread 4: cpu 8, mem ffffffff 2020/01/27-16:22:14(CET) Log: Thread 1 running on core ID 0 mask 1 (1). 2020/01/27-16:22:14(CET) Log: available CPU mask - F 2020/01/27-16:22:14(CET) Log: Starting copy thread 1: cpu 1, mem ffffffff 2020/01/27-16:22:14(CET) Log: available CPU mask - F 2020/01/27-16:22:14(CET) Log: Thread 3 running on core ID 1 mask 2 (2). 2020/01/27-16:22:14(CET) Log: Starting copy thread 3: cpu 2, mem ffffffff 2020/01/27-16:22:14(CET) Log: Thread 2 running on core ID 2 mask 4 (4). 2020/01/27-16:22:14(CET) Log: Starting copy thread 2: cpu 4, mem ffffffff 2020/01/27-16:22:14(CET) Log: Thread 0 running on core ID 3 mask F (F). 2020/01/27-16:22:14(CET) Log: Starting system error poll thread 0 2020/01/27-16:22:19(CET) Log: Joining worker threads 2020/01/27-16:22:19(CET) Log: Joining thread 1 2020/01/27-16:22:19(CET) Log: Completed 3: Copy thread. Status 1, 3639 pages copied 2020/01/27-16:22:19(CET) Log: Completed 4: Copy thread. Status 1, 3645 pages copied 2020/01/27-16:22:19(CET) Log: Completed 1: Copy thread. Status 1, 3633 pages copied 2020/01/27-16:22:19(CET) Log: Joining thread 2 2020/01/27-16:22:19(CET) Log: Completed 2: Copy thread. Status 1, 3595 pages copied 2020/01/27-16:22:19(CET) Log: Joining thread 3 2020/01/27-16:22:19(CET) Log: Joining thread 4 2020/01/27-16:22:19(CET) Log: Joining thread 0 2020/01/27-16:22:19(CET) Log: Finished system error poll thread 0: 0 errors 2020/01/27-16:22:19(CET) Log: Reads per page histogram 2020/01/27-16:22:19(CET) Log: 128 - 256: 1 2020/01/27-16:22:19(CET) Log: 256 - 512: 19 2020/01/27-16:22:19(CET) Log: 512 - 1024: 12 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Finished countdown, begin to result check 2020/01/27-16:22:19(CET) Log: Spawning thread 5 2020/01/27-16:22:19(CET) Log: Spawning thread 6 2020/01/27-16:22:19(CET) Log: Spawning thread 7 2020/01/27-16:22:19(CET) Log: Thread 5 running on core ID 0 mask F (F). 2020/01/27-16:22:19(CET) Log: Starting Check thread 5 2020/01/27-16:22:19(CET) Log: Spawning thread 8 2020/01/27-16:22:19(CET) Log: Spawning thread 9 2020/01/27-16:22:19(CET) Log: Spawning thread 10 2020/01/27-16:22:19(CET) Log: Spawning thread 11 2020/01/27-16:22:19(CET) Log: Spawning thread 12 2020/01/27-16:22:19(CET) Log: Joining thread 5 2020/01/27-16:22:19(CET) Log: Thread 12 running on core ID 2 mask F (F). 2020/01/27-16:22:19(CET) Log: Starting Check thread 12 2020/01/27-16:22:19(CET) Log: Thread 6 running on core ID 1 mask F (F). 2020/01/27-16:22:19(CET) Log: Thread 8 running on core ID 3 mask F (F). 2020/01/27-16:22:19(CET) Log: Starting Check thread 8 2020/01/27-16:22:19(CET) Log: Starting Check thread 6 2020/01/27-16:22:19(CET) Log: Thread 9 running on core ID 3 mask F (F). 2020/01/27-16:22:19(CET) Log: Completed 8: Check thread. Status 1, 5 pages checked 2020/01/27-16:22:19(CET) Log: Starting Check thread 9 2020/01/27-16:22:19(CET) Log: Completed 9: Check thread. Status 1, 0 pages checked 2020/01/27-16:22:19(CET) Log: Completed 12: Check thread. Status 1, 5 pages checked 2020/01/27-16:22:19(CET) Log: Completed 5: Check thread. Status 1, 5 pages checked 2020/01/27-16:22:19(CET) Log: Joining thread 6 2020/01/27-16:22:19(CET) Log: Thread 11 running on core ID 2 mask F (F). 2020/01/27-16:22:19(CET) Log: Starting Check thread 11 2020/01/27-16:22:19(CET) Log: Completed 11: Check thread. Status 1, 0 pages checked 2020/01/27-16:22:19(CET) Log: Thread 10 running on core ID 0 mask F (F). 2020/01/27-16:22:20(CET) Log: Starting Check thread 10 2020/01/27-16:22:20(CET) Log: Completed 10: Check thread. Status 1, 0 pages checked 2020/01/27-16:22:19(CET) Log: Thread 7 running on core ID 2 mask F (F). 2020/01/27-16:22:19(CET) Log: Completed 6: Check thread. Status 1, 5 pages checked 2020/01/27-16:22:20(CET) Log: Starting Check thread 7 2020/01/27-16:22:20(CET) Log: Completed 7: Check thread. Status 1, 0 pages checked 2020/01/27-16:22:20(CET) Log: Joining thread 7 2020/01/27-16:22:20(CET) Log: Joining thread 8 2020/01/27-16:22:20(CET) Log: Joining thread 9 2020/01/27-16:22:20(CET) Log: Joining thread 10 2020/01/27-16:22:20(CET) Log: Joining thread 11 2020/01/27-16:22:20(CET) Log: Joining thread 12 2020/01/27-16:22:20(CET) Log: Join all outstanding threads 2020/01/27-16:22:20(CET) Log: Reaping thread status 1 2020/01/27-16:22:20(CET) Log: Thread 1 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 2 2020/01/27-16:22:20(CET) Log: Thread 2 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 3 2020/01/27-16:22:20(CET) Log: Thread 3 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 4 2020/01/27-16:22:20(CET) Log: Thread 4 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 0 2020/01/27-16:22:20(CET) Log: Thread 0 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 5 2020/01/27-16:22:20(CET) Log: Thread 5 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 6 2020/01/27-16:22:20(CET) Log: Thread 6 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 7 2020/01/27-16:22:20(CET) Log: Thread 7 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 8 2020/01/27-16:22:20(CET) Log: Thread 8 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 9 2020/01/27-16:22:20(CET) Log: Thread 9 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 10 2020/01/27-16:22:20(CET) Log: Thread 10 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 11 2020/01/27-16:22:20(CET) Log: Thread 11 found 0 hardware incidents 2020/01/27-16:22:20(CET) Log: Reaping thread status 12 2020/01/27-16:22:20(CET) Log: Thread 12 found 0 hardware incidents 2020/01/27-16:22:20(CET) Stats: Found 0 hardware incidents 2020/01/27-16:22:20(CET) Stats: Completed: 29024.00M in 5.00s 5803.50MB/s, with 0 hardware incidents, 0 errors 2020/01/27-16:22:20(CET) Stats: Memory Copy: 29024.00M at 5804.33MB/s 2020/01/27-16:22:20(CET) Stats: File Copy: 0.00M at 0.00MB/s 2020/01/27-16:22:20(CET) Stats: Net Copy: 0.00M at 0.00MB/s 2020/01/27-16:22:20(CET) Stats: Data Check: 0.00M at 0.00MB/s 2020/01/27-16:22:20(CET) Stats: Invert Data: 0.00M at 0.00MB/s 2020/01/27-16:22:20(CET) Stats: Disk: 0.00M at 0.00MB/s 2020/01/27-16:22:20(CET) Log: Deleting worker threads 2020/01/27-16:22:20(CET) Log: Deleting thread 1 2020/01/27-16:22:20(CET) Log: Deleting thread 2 2020/01/27-16:22:20(CET) Log: Deleting thread 3 2020/01/27-16:22:20(CET) Log: Deleting thread 4 2020/01/27-16:22:20(CET) Log: Deleting thread 0 2020/01/27-16:22:20(CET) Log: Destroying WorkerStatus objects 2020/01/27-16:22:20(CET) Log: Uninstalling signal handlers 2020/01/27-16:22:20(CET) 2020/01/27-16:22:20(CET) Status: PASS - please verify no corrected errors 2020/01/27-16:22:20(CET)

Overall results[edit | edit source]

This section details the results that were achieved by the different benchmarks

STREAM[edit | edit source]

Mito8M
ARM frequency

[MHz]

792
Frequency

[MHz]

1600
Bus witdth

[bit]

32

LMbench[edit | edit source]

TBD

pmbw[edit | edit source]

TBD

Useful links[edit | edit source]

Appendix A: Detailed testing procedures[edit | edit source]

This section details how the benchmarks were configured and run on the testbed.

STREAM[edit | edit source]

Building[edit | edit source]

git clone https://github.com/jeffhammond/STREAM.git
make

 1 armbian@Mito8M:~/devel/STREAM$ cat Makefile 
 2 CC = gcc
 3 CFLAGS = -O2 -fopenmp
 4 
 5 FC = gfortran-4.9
 6 FFLAGS = -O2 -fopenmp
 7 
 8 all: stream_c.exe
 9 
10 stream_f.exe: stream.f mysecond.o
11         $(CC) $(CFLAGS) -c mysecond.c
12         $(FC) $(FFLAGS) -c stream.f
13         $(FC) $(FFLAGS) stream.o mysecond.o -o stream_f.exe
14 
15 stream_c.exe: stream.c
16         $(CC) $(CFLAGS) stream.c -o stream_c.exe
17 
18 clean:
19         rm -f stream_f.exe stream_c.exe *.o
20 
21 # an example of a more complex build line for the Intel icc compiler
22 stream.icc: stream.c
23         icc -O3 -xCORE-AVX2 -ffreestanding -qopenmp -DSTREAM_ARRAY_SIZE=80000000 -DNTIMES=20 stream.c -o stream.omp.AVX2.80M.20x.icc

Running the tests[edit | edit source]

ARM core clock = 800 MHz[edit | edit source]
armbian@Mito8M:~/devel/STREAM$ ./stream_c.exe 
-------------------------------------------------------------
STREAM version $Revision: 5.10 $
-------------------------------------------------------------
This system uses 8 bytes per array element.
-------------------------------------------------------------
Array size = 10000000 (elements), Offset = 0 (elements)
Memory per array = 76.3 MiB (= 0.1 GiB).
Total memory required = 228.9 MiB (= 0.2 GiB).
Each kernel will be executed 10 times.
 The *best* time for each kernel (excluding the first iteration)
 will be used to compute the reported bandwidth.
-------------------------------------------------------------
Number of Threads requested = 4
Number of Threads counted = 4
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 46427 microseconds.
   (= 46427 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:            6770.5     0.024010     0.023632     0.025117
Scale:           6093.2     0.027474     0.026259     0.029142
Add:             5263.5     0.046008     0.045597     0.046230
Triad:           4820.0     0.050297     0.049793     0.050723
-------------------------------------------------------------
Solution Validates: avg error less than 1.000000e-13 on all three arrays
-------------------------------------------------------------
ARM core clock = 1300 MHz[edit | edit source]
armbian@Mito8M:~/devel/STREAM$ ./stream_c.exe 
-------------------------------------------------------------
STREAM version $Revision: 5.10 $
-------------------------------------------------------------
This system uses 8 bytes per array element.
-------------------------------------------------------------
Array size = 10000000 (elements), Offset = 0 (elements)
Memory per array = 76.3 MiB (= 0.1 GiB).
Total memory required = 228.9 MiB (= 0.2 GiB).
Each kernel will be executed 10 times.
 The *best* time for each kernel (excluding the first iteration)
 will be used to compute the reported bandwidth.
-------------------------------------------------------------
Number of Threads requested = 4
Number of Threads counted = 4
-------------------------------------------------------------
Your clock granularity/precision appears to be 1 microseconds.
Each test below will take on the order of 43743 microseconds.
   (= 43743 clock ticks)
Increase the size of the arrays if this shows that
you are not getting at least 20 clock ticks per test.
-------------------------------------------------------------
WARNING -- The above is only a rough guideline.
For best results, please be sure you know the
precision of your system timer.
-------------------------------------------------------------
Function    Best Rate MB/s  Avg time     Min time     Max time
Copy:            7124.7     0.022597     0.022457     0.022866
Scale:           7501.5     0.022730     0.021329     0.024132
Add:             6761.7     0.035827     0.035494     0.036168
Triad:           6354.1     0.038171     0.037771     0.038644
-------------------------------------------------------------
Solution Validates: avg error less than 1.000000e-13 on all three arrays
-------------------------------------------------------------

LMbench[edit | edit source]

Running the tests[edit | edit source]

ARM core clock = 800 MHz[edit | edit source]
armbian@Mito8M:~/devel/lmbench$ sudo lmbench-run
[sudo] password for armbian: 
/usr/lib/lmbench/scripts/gnu-os: unable to guess system type

This script, last modified 2004-08-18, has failed to recognize
the operating system you are using. It is advised that you
download the most up to date version of the config scripts from

    ftp://ftp.gnu.org/pub/gnu/config/

If the version you run (/usr/lib/lmbench/scripts/gnu-os) is already up to date, please
send the following data and any information you think might be
pertinent to <config-patches@gnu.org> in order to provide the needed
information to handle your system.

config.guess timestamp = 2004-08-18

uname -m = aarch64
uname -r = 4.14.98-g4c94e1dbaec2
uname -s = Linux
uname -v = #1 SMP PREEMPT Mon Sep 30 14:46:22 CEST 2019

/usr/bin/uname -p = 
/bin/uname -X     = 

hostinfo               = 
/bin/universe          = 
/usr/bin/arch -k       = 
/bin/arch              = 
/usr/bin/oslevel       = 
/usr/convex/getsysinfo = 

UNAME_MACHINE = aarch64
UNAME_RELEASE = 4.14.98-g4c94e1dbaec2
UNAME_SYSTEM  = Linux
UNAME_VERSION = #1 SMP PREEMPT Mon Sep 30 14:46:22 CEST 2019
=====================================================================

                L M B E N C H   C ON F I G U R A T I O N
                ----------------------------------------

You need to configure some parameters to lmbench.  Once you have configured
these parameters, you may do multiple runs by saying

        "make rerun"

in the src subdirectory.

NOTICE: please do not have any other activity on the system if you can
help it.  Things like the second hand on your xclock or X perfmeters
are not so good when benchmarking.  In fact, X is not so good when
benchmarking.

=====================================================================

If you are running on an MP machine and you want to try running
multiple copies of lmbench in parallel, you can specify how many here.

Using this option will make the benchmark run 100x slower (sorry).

NOTE:  WARNING! This feature is experimental and many results are 
        known to be incorrect or random!

MULTIPLE COPIES [default 1]: 
=====================================================================

Options to control job placement
1) Allow scheduler to place jobs
2) Assign each benchmark process with any attendent child processes
   to its own processor
3) Assign each benchmark process with any attendent child processes
   to its own processor, except that it will be as far as possible
   from other processes
4) Assign each benchmark and attendent processes to their own
   processors
5) Assign each benchmark and attendent processes to their own
   processors, except that they will be as far as possible from
   each other and other processes
6) Custom placement: you assign each benchmark process with attendent
   child processes to processors
7) Custom placement: you assign each benchmark and attendent
   processes to processors

Note: some benchmarks, such as bw_pipe, create attendent child
processes for each benchmark process.  For example, bw_pipe
needs a second process to send data down the pipe to be read
by the benchmark process.  If you have three copies of the
benchmark process running, then you actually have six processes;
three attendent child processes sending data down the pipes and 
three benchmark processes reading data and doing the measurements.

Job placement selection [default 1]: 
=====================================================================

Hang on, we are calculating your timing granularity.
OK, it looks like you can time stuff down to 5000 usec resolution.

Hang on, we are calculating your timing overhead.
OK, it looks like your gettimeofday() costs 0 usecs.

Hang on, we are calculating your loop overhead.
OK, it looks like your benchmark loop costs 0.00000136 usecs.

=====================================================================

Several benchmarks operate on a range of memory.  This memory should be
sized such that it is at least 4 times as big as the external cache[s]
on your system.   It should be no more than 80% of your physical memory.

The bigger the range, the more accurate the results, but larger sizes
take somewhat longer to run the benchmark.

MB [default 2097]: 1024
Checking to see if you have 1024 MB; please wait for a moment...
1024MB OK
1024MB OK
1024MB OK
Hang on, we are calculating your cache line size.
OK, it looks like your cache line is 64 bytes.

=====================================================================

lmbench measures a wide variety of system performance, and the full suite
of benchmarks can take a long time on some platforms.  Consequently, we
offer the capability to run only predefined subsets of benchmarks, one
for operating system specific benchmarks and one for hardware specific
benchmarks.  We also offer the option of running only selected benchmarks
which is useful during operating system development.

Please remember that if you intend to publish the results you either need
to do a full run or one of the predefined OS or hardware subsets.

SUBSET (ALL|HARWARE|OS|DEVELOPMENT) [default all]: 
=====================================================================

This benchmark measures, by default, memory latency for a number of
different strides.  That can take a long time and is most useful if you
are trying to figure out your cache line size or if your cache line size
is greater than 128 bytes.

If you are planning on sending in these results, please don't do a fast
run.

Answering yes means that we measure memory latency with a 128 byte stride.  

FASTMEM [default no]: 
=====================================================================

This benchmark measures, by default, file system latency.  That can
take a long time on systems with old style file systems (i.e., UFS,
FFS, etc.).  Linux' ext2fs and Sun's tmpfs are fast enough that this
test is not painful.

If you are planning on sending in these results, please don't do a fast
run.

If you want to skip the file system latency tests, answer "yes" below.

SLOWFS [default no]: yes
=====================================================================

This benchmark can measure disk zone bandwidths and seek times.  These can
be turned into whizzy graphs that pretty much tell you everything you might
need to know about the performance of your disk.  

This takes a while and requires read access to a disk drive.  
Write is not measured, see disk.c to see how if you want to do so.

If you want to skip the disk tests, hit return below.

If you want to include disk tests, then specify the path to the disk
device, such as /dev/sda.  For each disk that is readable, you'll be
prompted for a one line description of the drive, i.e., 

        Iomega IDE ZIP
or
        HP C3725S 2GB on 10MB/sec NCR SCSI bus

DISKS [default none]: 
=====================================================================

If you are running on an idle network and there are other, identically
configured systems, on the same wire (no gateway between you and them),
and you have rsh access to them, then you should run the network part
of the benchmarks to them.  Please specify any such systems as a space
separated list such as: ether-host fddi-host hippi-host.

REMOTE [default none]: 
=====================================================================

Calculating mhz, please wait for a moment...
I think your CPU mhz is 

        798 MHz, 1.2531 nanosec clock

but I am frequently wrong.  If that is the wrong Mhz, type in your
best guess as to your processor speed.  It doesn't have to be exact,
but if you know it is around 800, say 800.  

Please note that some processors, such as the P4, have a core which
is double-clocked, so on those processors the reported clock speed
will be roughly double the advertised clock rate.  For example, a
1.8GHz P4 may be reported as a 3592MHz processor.

Processor mhz [default 798 MHz, 1.2531 nanosec clock]: 
=====================================================================

We need a place to store a 1024 Mbyte file as well as create and delete a
large number of small files.  We default to /var/tmp.  If /var/tmp is a
memory resident file system (i.e., tmpfs), pick a different place.
Please specify a directory that has enough space and is a local file
system.

FSDIR [default /var/tmp/lmbench]: /tmp/lmbench
=====================================================================

lmbench outputs status information as it runs various benchmarks.
By default this output is sent to /dev/tty, but you may redirect
it to any file you wish (such as /dev/null...).

Status output file [default /dev/tty]: 
=====================================================================

There is a database of benchmark results that is shipped with new
releases of lmbench.  Your results can be included in the database
if you wish.  The more results the better, especially if they include
remote networking.  If your results are interesting, i.e., for a new
fast box, they may be made available on the lmbench web page, which is

        http://www.bitmover.com/lmbench

Mail results [default yes]: no
OK, no results mailed.
=====================================================================

Confguration done, thanks.

There is a mailing list for discussing lmbench hosted at BitMover. 
Send mail to majordomo@bitmover.com to join the list.

/usr/lib/lmbench/scripts/gnu-os: unable to guess system type

This script, last modified 2004-08-18, has failed to recognize
the operating system you are using. It is advised that you
download the most up to date version of the config scripts from

    ftp://ftp.gnu.org/pub/gnu/config/

If the version you run (/usr/lib/lmbench/scripts/gnu-os) is already up to date, please
send the following data and any information you think might be
pertinent to <config-patches@gnu.org> in order to provide the needed
information to handle your system.

config.guess timestamp = 2004-08-18

uname -m = aarch64
uname -r = 4.14.98-g4c94e1dbaec2
uname -s = Linux
uname -v = #1 SMP PREEMPT Mon Sep 30 14:46:22 CEST 2019

/usr/bin/uname -p = 
/bin/uname -X     = 

hostinfo               = 
/bin/universe          = 
/usr/bin/arch -k       = 
/bin/arch              = 
/usr/bin/oslevel       = 
/usr/convex/getsysinfo = 

UNAME_MACHINE = aarch64
UNAME_RELEASE = 4.14.98-g4c94e1dbaec2
UNAME_SYSTEM  = Linux
UNAME_VERSION = #1 SMP PREEMPT Mon Sep 30 14:46:22 CEST 2019
Using config in CONFIG.Mito8M
Wed Jan 15 10:56:54 CET 2020
Latency measurements
Wed Jan 15 10:57:29 CET 2020
Local networking
Wed Jan 15 10:58:36 CET 2020
Bandwidth measurements
Wed Jan 15 11:03:02 CET 2020
Calculating context switch overhead
Wed Jan 15 11:03:09 CET 2020
Calculating effective TLB size
Wed Jan 15 11:03:10 CET 2020
Calculating memory load parallelism
Wed Jan 15 11:14:34 CET 2020
McCalpin's STREAM benchmark
Wed Jan 15 11:15:30 CET 2020
Calculating memory load latency
Wed Jan 15 11:35:54 CET 2020
Benchmark run finished....
Remember you can find the results of the benchmark 
under /var/lib/lmbench/results
ARM core clock = 1300 MHz[edit | edit source]

Results[edit | edit source]

TBD inserire link a file scaricabile 



pmbw[edit | edit source]


Building[edit | edit source]


Running the tests[edit | edit source]


ARM core clock = 800 MHz[edit | edit source]


ARM core clock = 1300 MHz[edit | edit source]


stressapptest[edit | edit source]


Building[edit | edit source]


armbian@Mito8M:~/devel/stressapptest$ git clone https://github.com/stressapptest/stressapptest.git
Cloning into 'stressapptest'...
remote: Enumerating objects: 290, done.
remote: Total 290 (delta 0), reused 0 (delta 0), pack-reused 290
Receiving objects: 100% (290/290), 324.79 KiB | 1.16 MiB/s, done.
Resolving deltas: 100% (196/196), done.
armbian@Mito8M:~/devel/stressapptest$ cd stressapptest
armbian@Mito8M:~/devel/stressapptest/stressapptest$ ./configure 
configure: Compiling with dynamically linked libraries.
checking build system type... aarch64-unknown-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of g++... gcc3
checking for gcc... gcc
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking user ID... armbian
checking host name... Mito8M
checking current timestamp... Mon Jan 27 16:25:29 CET 2020
checking for dirent.h that defines DIR... yes
checking for library containing opendir... none required
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking arpa/inet.h usability... yes
checking arpa/inet.h presence... yes
checking for arpa/inet.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking netdb.h usability... yes
checking netdb.h presence... yes
checking for netdb.h... yes
checking for stdint.h... (cached) yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking pthread.h usability... yes
checking pthread.h presence... yes
checking for pthread.h... yes
checking for library containing pthread_create... -lpthread
checking for pthread_barrier_t... yes
checking libaio.h usability... no
checking libaio.h presence... no
checking for libaio.h... no
checking for library containing io_setup... no
checking sys/shm.h usability... yes
checking sys/shm.h presence... yes
checking for sys/shm.h... yes
checking for library containing shm_open... -lrt
checking for stdbool.h that conforms to C99... yes
checking for _Bool... yes
checking for an ANSI C-conforming const... yes
checking for inline... inline
checking for pid_t... yes
checking for C/C++ restrict keyword... __restrict
checking for size_t... yes
checking for ssize_t... yes
checking whether time.h and sys/time.h may both be included... yes
checking for uint16_t... yes
checking for working volatile... yes
checking whether closedir returns void... no
checking whether gcc needs -traditional... no
checking sys/select.h usability... yes
checking sys/select.h presence... yes
checking for sys/select.h... yes
checking for sys/socket.h... (cached) yes
checking types of arguments for select... int,fd_set *,struct timeval *
checking return type of signal handlers... void
checking whether strerror_r is declared... yes
checking for strerror_r... yes
checking whether strerror_r returns char *... no
checking for vprintf... yes
checking for _doprnt... no
checking for ftruncate... yes
checking for gettimeofday... yes
checking for memset... yes
checking for munmap... yes
checking for select... yes
checking for socket... yes
checking for strtol... yes
checking for strtoull... yes
checking for mmap64... yes
checking for posix_memalign... yes
checking for rand_r... yes
checking for sched_getaffinity... yes
configure: creating ./config.status
config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating src/stressapptest_config.h
config.status: executing depfiles commands
armbian@Mito8M:~/devel/stressapptest/stressapptest$ make
CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/bash /home/armbian/devel/stressapptest/stressapptest/missing --run aclocal-1.11 
/home/armbian/devel/stressapptest/stressapptest/missing: line 54: aclocal-1.11: command not found
WARNING: `aclocal-1.11' is missing on your system.  You should only need it if



        you modified `acinclude.m4' or `configure.ac'.  You might want
        to install the `Automake' and `Perl' packages.  Grab them from
        any GNU archive site.
cd . && /bin/bash /home/armbian/devel/stressapptest/stressapptest/missing --run automake-1.11 --foreign



/home/armbian/devel/stressapptest/stressapptest/missing: line 54: automake-1.11: command not found
WARNING: `automake-1.11' is missing on your system.  You should only need it if



        you modified `Makefile.am', `acinclude.m4' or `configure.ac'.
        You might want to install the `Automake' and `Perl' packages.
        Grab them from any GNU archive site.



CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/bash /home/armbian/devel/stressapptest/stressapptest/missing --run autoconf
aclocal.m4:16: warning: this file was generated for autoconf 2.65.
You have another version of autoconf.  It may work, but is not guaranteed to.
If you have problems, you may need to regenerate the build system entirely.
To do so, use the procedure documented by the package, typically `autoreconf'.
/bin/bash ./config.status --recheck
running CONFIG_SHELL=/bin/bash /bin/bash ./configure --no-create --no-recursion
configure: Compiling with dynamically linked libraries.
checking build system type... aarch64-unknown-linux-gnu
checking host system type... aarch64-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... no
checking for mawk... mawk
checking whether make sets $(MAKE)... yes
checking for g++... g++
checking whether the C++ compiler works... yes
checking for C++ compiler default output file name... a.out
checking for suffix of executables... 
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of g++... gcc3
checking for gcc... gcc
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking dependency style of gcc... gcc3
checking user ID... armbian
checking host name... Mito8M
checking current timestamp... Mon Jan 27 16:27:41 CET 2020
checking for dirent.h that defines DIR... yes
checking for library containing opendir... none required
checking how to run the C preprocessor... gcc -E
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking arpa/inet.h usability... yes
checking arpa/inet.h presence... yes
checking for arpa/inet.h... yes
checking fcntl.h usability... yes
checking fcntl.h presence... yes
checking for fcntl.h... yes
checking netdb.h usability... yes
checking netdb.h presence... yes
checking for netdb.h... yes
checking for stdint.h... (cached) yes
checking for stdlib.h... (cached) yes
checking for string.h... (cached) yes
checking sys/ioctl.h usability... yes
checking sys/ioctl.h presence... yes
checking for sys/ioctl.h... yes
checking sys/socket.h usability... yes
checking sys/socket.h presence... yes
checking for sys/socket.h... yes
checking sys/time.h usability... yes
checking sys/time.h presence... yes
checking for sys/time.h... yes
checking for unistd.h... (cached) yes
checking pthread.h usability... yes
checking pthread.h presence... yes
checking for pthread.h... yes
checking for library containing pthread_create... -lpthread
checking for pthread_barrier_t... yes
checking libaio.h usability... no
checking libaio.h presence... no
checking for libaio.h... no
checking for library containing io_setup... no
checking sys/shm.h usability... yes
checking sys/shm.h presence... yes
checking for sys/shm.h... yes
checking for library containing shm_open... -lrt
checking for stdbool.h that conforms to C99... yes
checking for _Bool... yes
checking for an ANSI C-conforming const... yes
checking for inline... inline
checking for pid_t... yes
checking for C/C++ restrict keyword... __restrict
checking for size_t... yes
checking for ssize_t... yes
checking whether time.h and sys/time.h may both be included... yes
checking for uint16_t... yes
checking for working volatile... yes
checking whether closedir returns void... no
checking whether gcc needs -traditional... no
checking sys/select.h usability... yes
checking sys/select.h presence... yes
checking for sys/select.h... yes
checking for sys/socket.h... (cached) yes
checking types of arguments for select... int,fd_set *,struct timeval *
checking return type of signal handlers... void
checking whether strerror_r is declared... yes
checking for strerror_r... yes
checking whether strerror_r returns char *... no
checking for vprintf... yes
checking for _doprnt... no
checking for ftruncate... yes
checking for gettimeofday... yes
checking for memset... yes
checking for munmap... yes
checking for select... yes
checking for socket... yes
checking for strtol... yes
checking for strtoull... yes
checking for mmap64... yes
checking for posix_memalign... yes
checking for rand_r... yes
checking for sched_getaffinity... yes
configure: creating ./config.status



/bin/bash ./config.status



config.status: creating Makefile
config.status: creating src/Makefile
config.status: creating src/stressapptest_config.h
config.status: executing depfiles commands
Making all in src
make[1]: Entering directory '/home/armbian/devel/stressapptest/stressapptest/src'
(CDPATH="${ZSH_VERSION+.}:" && cd .. && /bin/bash /home/armbian/devel/stressapptest/stressapptest/missing --run autoheader)
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:



       LANGUAGE = "en_US.UTF-8",
       LC_ALL = (unset),
       LC_ADDRESS = "it_IT.UTF-8",
       LC_NAME = "it_IT.UTF-8",
       LC_MONETARY = "it_IT.UTF-8",
       LC_PAPER = "it_IT.UTF-8",
       LC_IDENTIFICATION = "it_IT.UTF-8",
       LC_TELEPHONE = "it_IT.UTF-8",
       LC_MESSAGES = "en_US.UTF-8",
       LC_MEASUREMENT = "it_IT.UTF-8",
       LC_TIME = "it_IT.UTF-8",
       LC_NUMERIC = "it_IT.UTF-8",
       LANG = "en_US.UTF-8"
   are supported and installed on your system.



perl: warning: Falling back to a fallback locale ("en_US.UTF-8").
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:



       LANGUAGE = "en_US.UTF-8",
       LC_ALL = (unset),
       LC_TIME = "it_IT.UTF-8",
       LC_MONETARY = "it_IT.UTF-8",
       LC_ADDRESS = "it_IT.UTF-8",
       LC_TELEPHONE = "it_IT.UTF-8",
       LC_MESSAGES = "en_US.UTF-8",
       LC_NAME = "it_IT.UTF-8",
       LC_MEASUREMENT = "it_IT.UTF-8",
       LC_IDENTIFICATION = "it_IT.UTF-8",
       LC_NUMERIC = "it_IT.UTF-8",
       LC_PAPER = "it_IT.UTF-8",
       LANG = "en_US.UTF-8"
   are supported and installed on your system.



perl: warning: Falling back to a fallback locale ("en_US.UTF-8").
rm -f stamp-h1
touch stressapptest_config.h.in
cd .. && /bin/bash ./config.status src/stressapptest_config.h
config.status: creating src/stressapptest_config.h
config.status: src/stressapptest_config.h is unchanged
make  all-am
make[2]: Entering directory '/home/armbian/devel/stressapptest/stressapptest/src'
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT main.o -MD -MP -MF .deps/main.Tpo -c -o main.o main.cc
mv -f .deps/main.Tpo .deps/main.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT os.o -MD -MP -MF .deps/os.Tpo -c -o os.o os.cc
os.cc:215:2: warning: #warning "Unsupported CPU type: unable to determine feature set." [-Wcpp]



#warning "Unsupported CPU type: unable to determine feature set."
 ^15:30, 27 January 2020 (UTC)~



mv -f .deps/os.Tpo .deps/os.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT os_factory.o -MD -MP -MF .deps/os_factory.Tpo -c -o os_factory.o os_factory.cc
mv -f .deps/os_factory.Tpo .deps/os_factory.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT pattern.o -MD -MP -MF .deps/pattern.Tpo -c -o pattern.o pattern.cc
mv -f .deps/pattern.Tpo .deps/pattern.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT queue.o -MD -MP -MF .deps/queue.Tpo -c -o queue.o queue.cc
mv -f .deps/queue.Tpo .deps/queue.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT sat.o -MD -MP -MF .deps/sat.Tpo -c -o sat.o sat.cc
mv -f .deps/sat.Tpo .deps/sat.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT sat_factory.o -MD -MP -MF .deps/sat_factory.Tpo -c -o sat_factory.o sat_factory.cc
mv -f .deps/sat_factory.Tpo .deps/sat_factory.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT worker.o -MD -MP -MF .deps/worker.Tpo -c -o worker.o worker.cc
worker.cc: In member function ‘virtual void NetworkThread::SetIP(const char*)’:
worker.cc:2005:10: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



  strncpy(ipaddr_, ipaddr_init, 256);
  15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkThread::ReceivePage(int, page_entry*)’ at worker.cc:2154:23:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkListenThread::Listen()’ at worker.cc:2065:17:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2121:21,
   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2110:6:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkThread::ReceivePage(int, page_entry*)’ at worker.cc:2154:23,
   inlined from ‘virtual bool NetworkSlaveThread::Work()’ at worker.cc:2402:21:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2121:21,
   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2110:6,
   inlined from ‘virtual bool NetworkSlaveThread::Work()’ at worker.cc:2406:18:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2121:21,
   inlined from ‘virtual bool NetworkThread::SendPage(int, page_entry*)’ at worker.cc:2110:6,
   inlined from ‘virtual bool NetworkThread::Work()’ at worker.cc:2228:38:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



In function ‘bool {anonymous}::sat_strerror(int, char*, int)’,



   inlined from ‘int WorkerThread::SpawnThread()’ at worker.cc:339:17:



worker.cc:92:14: warning: ‘char* strncpy(char*, const char*, size_t)’ specified bound 256 equals destination size [-Wstringop-truncation]



      strncpy(buf, errmsg, len);
      15:30, 27 January 2020 (UTC)~~^15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)15:30, 27 January 2020 (UTC)~~



mv -f .deps/worker.Tpo .deps/worker.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT finelock_queue.o -MD -MP -MF .deps/finelock_queue.Tpo -c -o finelock_queue.o finelock_queue.cc
mv -f .deps/finelock_queue.Tpo .deps/finelock_queue.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT error_diag.o -MD -MP -MF .deps/error_diag.Tpo -c -o error_diag.o error_diag.cc
mv -f .deps/error_diag.Tpo .deps/error_diag.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT disk_blocks.o -MD -MP -MF .deps/disk_blocks.Tpo -c -o disk_blocks.o disk_blocks.cc
mv -f .deps/disk_blocks.Tpo .deps/disk_blocks.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT adler32memcpy.o -MD -MP -MF .deps/adler32memcpy.Tpo -c -o adler32memcpy.o adler32memcpy.cc
adler32memcpy.cc:519:4: warning: #warning "No vector copy defined for this architecture." [-Wcpp]



  #warning "No vector copy defined for this architecture."
   ^15:30, 27 January 2020 (UTC)~



mv -f .deps/adler32memcpy.Tpo .deps/adler32memcpy.Po
g++ -DHAVE_CONFIG_H -I.     -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG -MT logger.o -MD -MP -MF .deps/logger.Tpo -c -o logger.o logger.cc
mv -f .deps/logger.Tpo .deps/logger.Po
g++  -DCHECKOPTS -Wreturn-type -Wunused -Wuninitialized -Wall -O3 -funroll-all-loops  -funroll-loops -DNDEBUG   -o stressapptest main.o os.o os_factory.o pattern.o queue.o sat.o sat_factory.o worker.o finelock_queue.o error_diag.o disk_blocks.o adler32memcpy.o logger.o   -lrt -lpthread 
gcc -DHAVE_CONFIG_H -I.     -g -O2 -MT findmask.o -MD -MP -MF .deps/findmask.Tpo -c -o findmask.o findmask.c
mv -f .deps/findmask.Tpo .deps/findmask.Po
gcc  -g -O2   -o findmask findmask.o  -lrt -lpthread 
make[2]: Leaving directory '/home/armbian/devel/stressapptest/stressapptest/src'
make[1]: Leaving directory '/home/armbian/devel/stressapptest/stressapptest/src'
make[1]: Entering directory '/home/armbian/devel/stressapptest/stressapptest'
make[1]: Nothing to be done for 'all-am'.
make[1]: Leaving directory '/home/armbian/devel/stressapptest/stressapptest'











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