On Wed, 22 Jul 2020 at 18:19, Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > > > > Results from Linaro’s test farm. > > Regressions detected on arm and arm64 (Juno-r2) > > We are bisecting this problem and get back to you soon. > > > > perf test cases failed > > perf: > > * Track-with-sched_switch > > * perf_record_test > > * perf_report_test > > > > Bad case: > > [ perf record: Woken up 1 times to write data ] > > [ perf record: Captured and wrote 0.002 MB perf-lava-test.data ] > > > > when it was pass it prints number of samples like below, > > Good case: > > [ perf record: Woken up 1 times to write data ] > > [ perf record: Captured and wrote 0.004 MB perf-lava-test.data (46 samples) ] > > > > steps to reproduce: > > # perf record -e cycles -o perf-lava-test.data ls -a 2>&1 | tee perf-record.log > > > > Link to full test: > > https://qa-reports.linaro.org/lkft/linux-stable-rc-5.7-oe/build/v5.7.9-244-g7d2e5723ce4a/testrun/2969482/suite/perf/test/perf_record_test/log > > > > test case: > > https://github.com/Linaro/test-definitions/blob/master/automated/linux/perf/perf.sh > > Any hint by bisection as to what this problem is caused by? Not yet found the bad commit. We are working on it. - Naresh
