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Diffstat (limited to 'docs/report/introduction/test_environment_sut_conf_2.rst')
| -rw-r--r-- | docs/report/introduction/test_environment_sut_conf_2.rst | 37 |
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diff --git a/docs/report/introduction/test_environment_sut_conf_2.rst b/docs/report/introduction/test_environment_sut_conf_2.rst new file mode 100644 index 0000000000..482c09d5fb --- /dev/null +++ b/docs/report/introduction/test_environment_sut_conf_2.rst @@ -0,0 +1,37 @@ + +**Host CFS optimizations (QEMU+VPP)** + +Applying CFS scheduler tuning on all Qemu vcpu worker threads (those are +handling testpmd - pmd threads) and VPP PMD worker threads. List of VPP PMD +threads can be obtained e.g. from: + +:: + + $ for psid in $(pgrep vpp) + $ do + $ for tid in $(ps -Lo tid --pid $psid | grep -v TID) + $ do + $ echo $tid + $ done + $ done + +Or: + +:: + + $ cat /proc/`pidof vpp`/task/*/stat | awk '{print $1" "$2" "$39}' + +Applying Round-robin scheduling with highest priority + +:: + + $ for psid in $(pgrep vpp) + $ do + $ for tid in $(ps -Lo tid --pid $psid | grep -v TID) + $ do + $ chrt -r -p 1 $tid + $ done + $ done + +More information about Linux CFS can be found in: `Sched manual pages +<http://man7.org/linux/man-pages/man7/sched.7.html>`_. |