Am 08.05.21 um 20:36 schrieb Patrick Menschel: > Am 07.05.21 um 10:25 schrieb Marc Kleine-Budde: >> On 07.05.2021 08:21:57, Patrick Menschel wrote: >>>>>> Would it be possible for you to pull these patches into a v5.10 branch >>>>>> in your linux-rpi repo [1]? >>>>> >>>>> Here you are: >>>>> >>>>> https://github.com/marckleinebudde/linux-rpi/tree/v5.10-rpi/backport-performance-improvements >>>>> >>>>> I've included the UINC performance enhancements, too. The branch is compiled >>>>> tested only, though. I'll send a pull request to the rpi kernel after I've >>>>> testing feedback from you. >>>> >>>> Drew, Patrick, have you tested this branch? If so I'll send a pull >>>> request to the raspi kernel. >>>> >> >>> not yet. Thanks for reminding me. I'll start a native build on a pi0w asap. >>> >>> Is there any test application or stress test that I should run? >> >> No, not any particular, do your normal (stress) testing. >> > Following up on this. > > ... > > Do I have to change my test? Hi Marc, I changed my test to 1 hour and removed the sleep statement. Still no measurable difference for performance and no CRC Errors with both kernels. Apparently the test is hard on the CPU, I have two pytest processes listed in htop one with 80%CPU and one with 60% CPU, approx 30% ram usage of 512MB. I have no clue how it reaches the CPU values, there should be only one CPU on the pi0w. ### 5.10.17+ on pi0w ### 2021-05-09 08:02:56 [ INFO] 725649 frames in 1:00:00 (test_socketcan.py:890) ### 5.10.31-performance-backports+ on pi0w ### 2021-05-09 09:13:32 [ INFO] 715936 frames in 1:00:00 (test_socketcan.py:890) I'll switch boards to a pi3b and test again with these settings. Best Regards, Patrick
