Hi Team,
We are using the following test setup for our project:
* evaluation board which has
* iMX-8m-mini-som
* display(MIPI) of resolution 1280x720
* Integrated 2D/3D GPU and 1080p VPU
* running qt default applications with backend as eglfs.
With reference to link
https://www.qt.io/blog/2017/04/27/performance-regression-testing-qt-quick, we
have used the qmlbench tool from
https://github.com/qt-labs/qmlbench/tree/master.
High CPU usage while running the qmlbench:
While testing with qmlbench tool we have noted that the usage reaching
high(~100%).
Test command:
$ src/qmlbench -v --json --shell frame-count benchmarks/auto/bindings/
Find below few top command logs while running qmlbench tool:
640 root 20 0 596216 30912 24412 S 6.0 1.5 0:00.18 qmlbench
639 root 20 0 53856 13548 12032 S 1.3 0.7 0:00.04 qmlbench
640 root 20 0 607208 47292 26736 R 89.1 2.3 0:02.87 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607220 46816 26728 R 100.0 2.3 0:05.89 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607344 46648 26728 R 100.3 2.3 0:08.91 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607336 46560 26728 R 100.3 2.3 0:11.94 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607348 46948 26760 R 100.3 2.3 0:14.96 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607372 47420 26728 R 100.0 2.3 0:17.98 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
640 root 20 0 607348 46960 26760 R 100.3 2.3 0:21.00 qmlbench
639 root 20 0 53856 13548 12032 S 0.0 0.7 0:00.04 qmlbench
PFA, for detailed test logs.
Is this expected behavior?, as stated "the maximum usage a single-threaded
process can take up to 25% of total CPU time" in the document
https://web.wpi.edu/Pubs/E-project/Available/E-project-042518-124639/unrestricted/Developing_a_Benchmark_for_Qt_on_Embedded_Platforms.pdf
at page#29.
If not expected behavior, then is there any to control the cpu usage.
Generating reports:
As displayed in the link
https://www.qt.io/blog/2017/04/27/performance-regression-testing-qt-quick, how
can we generate reports using qmlbench tool for benchmark comparison.
How can we include/create reports of the performance metrics like Frame Rate,
CPU Usage, and Physical Memory Usage while using qmlbench tool
Regards,
Satyanarayan Gullapalli
<<attachment: 230209-1532-qmlbench-target-logs.zip>>
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