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2024-07-25 - 06:47
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Data to construct the above plot have been generated using the RT test utility cyclictest.
Unexpectedly long latencies may be caused by SMIs
Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 50 highest latencies:
System rack9slot5.osadl.org (updated Thu Jul 13, 2023 00:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1357922215,4sleep00-21swapper/019:09:120
14032991815,2cyclictest20855-21cat00:20:001
137532187,7sleep10-21swapper/119:09:441
246099130,2rtkit-daemon2459-21rtkit-daemon00:15:230
14032991310,2cyclictest15119-21kernelversion20:00:271
14032991310,2cyclictest1012-21munin-run21:20:001
14031991312,1cyclictest31104-21fschecks_time21:15:210
14031991311,1cyclictest25013-21x2golistsession21:55:230
246099120,2rtkit-daemon2459-21rtkit-daemon20:03:090
14032991210,1cyclictest8969-21open_files22:20:271
14031991211,1cyclictest28424-21x2gosqlitewrapp23:40:250
1403299119,1cyclictest22042-21needreboot00:20:301
1403299119,1cyclictest14625-21aten_r9power_cu00:10:181
1403299119,1cyclictest12080-21x2golistsession22:25:241
1403299119,1cyclictest0-21swapper/119:40:001
1403299118,2cyclictest7901-21latency_hist00:00:001
1403299118,2cyclictest30541-21apt00:35:001
1403199119,1cyclictest2167-21idleruntime21:20:220
1403199118,2cyclictest17671-21df_abs19:15:200
1403199118,2cyclictest12531-21unixbench-2d23:15:270
1403199118,2cyclictest0-21swapper/022:40:200
1403299108,1cyclictest21955-21needreboot23:30:291
1403299108,1cyclictest1692-21fschecks_count20:30:231
1403299108,1cyclictest0-21swapper/121:00:211
1403299108,1cyclictest0-21swapper/120:40:261
1403299107,2cyclictest28240-21pmu-power21:10:231
1403299107,2cyclictest25006-21ntp_kernel_pll_21:55:231
1403299105,4cyclictest7895-21x2gosqlitewrapp21:30:181
1403299100,9cyclictest13636-21x2gosqlitewrapp21:38:421
1403299100,3cyclictest317352x2gosqlitewrapp22:55:411
1403199109,1cyclictest2759-21mailstats23:00:240
1403199108,1cyclictest8520-21fschecks_time20:40:260
1403199108,1cyclictest21091-21x2gopath00:20:190
1403199108,1cyclictest0-21swapper/023:30:300
1403199108,1cyclictest0-21swapper/022:50:270
1403199108,1cyclictest0-21swapper/022:12:080
1403199107,2cyclictest9178-21unixbench-2d21:30:330
1403199107,2cyclictest31518-21gltestperf00:35:240
1403199107,2cyclictest21576-21http_loadtime21:50:230
1403199105,4cyclictest29600-21x2gosqlitewrapp21:13:140
1403199105,4cyclictest19986-21x2gosqlitewrapp22:38:050
140329998,1cyclictest23811-21latency_hist20:15:011
140329998,1cyclictest18278-21fschecks_count23:25:231
140329997,1cyclictest8652-21fschecks_count00:00:251
140329997,1cyclictest24876-21fschecks_count00:25:231
140329997,1cyclictest17548-21latency_hist23:25:001
140329997,1cyclictest14380-21latency_hist00:10:001
140329997,1cyclictest0-21swapper/123:35:301
140329997,1cyclictest0-21swapper/122:15:181
140329997,1cyclictest0-21swapper/121:55:001
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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