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2023-12-11 - 02:53
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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 rack0slot7.osadl.org (updated Mon Dec 11, 2023 00:45:30)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
26156902184175,4sleep10-21swapper/119:08:181
26157042165144,11sleep140-21swapper/1419:08:316
9035101500,142AudioIP~ackRPC0-2111:30:5010
26156812149141,4sleep90-21swapper/919:08:1015
9035101450,138AudioIP~ackRPC0-2111:30:504
1185977101410,140AudioIPC00-21swapper/619:05:2712
7786201350,124pipewire-pulse0-21swapper/1019:06:472
9035101270,119AudioIP~ackRPC0-2111:30:503
261644099126125,1cyclictest1875420-1kworker/u33:222:49:4011
261642999126125,1cyclictest3435788-1kworker/u33:122:39:098
261642999124124,0cyclictest0-21swapper/221:36:428
261645999103102,1cyclictest2682092-1kworker/u33:021:09:182
2615559210356,39sleep150-21swapper/1519:06:407
26164639910139,41cyclictest3596529-21kthreadcore22:00:313
26164639910017,63cyclictest7306-21Xorg21:30:563
2616463999937,42cyclictest3318097-21sed21:15:003
2616463999755,20cyclictest778320pipewire20:07:033
2616463999735,20cyclictest903510AudioIP~ack11:30:503
261554529794,1sleep30-21swapper/319:06:289
2616463999634,20cyclictest778320pipewire20:44:103
2616463999633,20cyclictest778620pipewire-pulse23:37:473
2616463999511,63cyclictest778620pipewire-pulse21:57:323
778320920,84pipewire0-21swapper/1319:05:435
261646399906,21cyclictest0-21swapper/1121:37:123
778620880,76pipewire-pulse0-21swapper/219:07:388
2616463998623,21cyclictest778320pipewire23:45:543
2616463998523,20cyclictest0-21swapper/1120:28:383
2616463998422,20cyclictest0-21swapper/1121:04:563
2616463998240,21cyclictest1186007-21MediaSu~isor3
2616463998240,21cyclictest1186007-21MediaSu~isor3
2616463998220,20cyclictest0-21swapper/1121:46:193
2616463998218,21cyclictest778620pipewire-pulse22:34:113
2616463998038,21cyclictest286706-21tr00:25:363
2616463998038,20cyclictest778620pipewire-pulse19:57:373
2616463998016,21cyclictest775520pipewire-pulse00:14:203
261647799790,37cyclictest0-21swapper/1523:31:047
2616463997918,19cyclictest903510AudioIP~ack11:30:503
2616463997918,19cyclictest903510AudioIP~ack11:30:503
2616463997917,20cyclictest903510AudioIP~ack11:30:503
2616463997916,21cyclictest3406400-21sh21:27:503
2616463997916,21cyclictest0-21swapper/1122:21:593
2616463997916,21cyclictest0-21swapper/1122:21:583
261571227950,22sleep50-21swapper/519:08:3911
261647799780,57cyclictest0-21swapper/1521:04:247
2616463997837,21cyclictest0-21swapper/1100:24:233
2616463997837,20cyclictest1186010-21MediaPD~oder3
2616463997816,41cyclictest4068327-21ssh23:16:423
2616463997816,20cyclictest2619318-21irqstats_LOC19:10:293
2616463997815,42cyclictest0-21swapper/1120:45:283
2616463997814,63cyclictest0-21swapper/1121:40:193
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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