https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_20/fi-byt-n2820/igt@perf_pmu@cpu-hotplug.html

(perf_pmu:1175) CRITICAL: Test assertion failure function cpu_hotplug, file ../tests/perf_pmu.c:1158:
(perf_pmu:1175) CRITICAL: Failed assertion: (double)(val) <= (1.0 + (tolerance)) * (double)(ts[1] - ts[0]) && (double)(val) >= (1.0 - (tolerance)) * (double)(ts[1] - ts[0])
(perf_pmu:1175) CRITICAL: 'val' != 'ts[1] - ts[0]' (65000000.000000 not within +5.000000%/-5.000000% tolerance of 61118177.000000)
Subtest cpu-hotplug failed.

https://intel-gfx-ci.01.org/tree/drm-tip/drmtip_19/fi-byt-j1900/igt@perf_pmu@cpu-hotplug.html

(perf_pmu:1208) CRITICAL: Test assertion failure function cpu_hotplug, file ../tests/perf_pmu.c:1158:
(perf_pmu:1208) CRITICAL: Failed assertion: (double)(val) <= (1.0 + (tolerance)) * (double)(ts[1] - ts[0]) && (double)(val) >= (1.0 - (tolerance)) * (double)(ts[1] - ts[0])
(perf_pmu:1208) CRITICAL: 'val' != 'ts[1] - ts[0]' (90000000.000000 not within +5.000000%/-5.000000% tolerance of 85713841.000000)
Subtest cpu-hotplug failed.