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2025-07-13 - 11:46
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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
Characteristics of the 50 highest latencies:
System rackcslot4.osadl.org (updated Sun Jul 13, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
93794923530,6sleep0937952-21switchtime19:05:320
9384702271195,27sleep10-21swapper/119:08:131
10172902750,1chrt1017284-21cron21:50:000
125899570,4rtkit-daemon1257-21rtkit-daemon19:25:050
125899550,3rtkit-daemon1257-21rtkit-daemon19:59:551
125899540,4rtkit-daemon1257-21rtkit-daemon23:05:200
125899520,4rtkit-daemon1257-21rtkit-daemon23:52:151
125899520,4rtkit-daemon1257-21rtkit-daemon22:34:581
125899520,3rtkit-daemon1257-21rtkit-daemon22:16:080
125899510,4rtkit-daemon1257-21rtkit-daemon20:01:131
125899500,4rtkit-daemon1257-21rtkit-daemon20:33:381
125899500,3rtkit-daemon1257-21rtkit-daemon21:51:190
125899500,3rtkit-daemon1257-21rtkit-daemon19:44:481
125899470,4rtkit-daemon1257-21rtkit-daemon19:17:350
125899440,4rtkit-daemon1257-21rtkit-daemon23:15:560
125899430,8rtkit-daemon251rcuc/123:02:141
125899420,11rtkit-daemon1257-21rtkit-daemon22:44:000
125899400,3rtkit-daemon0-21swapper/123:44:371
125899400,3rtkit-daemon0-21swapper/023:03:390
10214972390,1sleep10-21swapper/121:55:011
125899370,3rtkit-daemon0-21swapper/120:20:261
125899370,27rtkit-daemon0-21swapper/100:07:551
125899360,5rtkit-daemon1257-21rtkit-daemon22:24:440
125899360,4rtkit-daemon960767-21runrttasks20:00:320
125899360,4rtkit-daemon1257-21rtkit-daemon21:17:160
125899360,3rtkit-daemon0-21swapper/122:46:041
125899360,3rtkit-daemon0-21swapper/120:50:251
125899360,3rtkit-daemon0-21swapper/120:35:241
125899360,3rtkit-daemon0-21swapper/119:37:090
125899360,3rtkit-daemon0-21swapper/021:36:050
125899360,3rtkit-daemon0-21swapper/021:25:311
125899360,3rtkit-daemon0-21swapper/019:10:330
125899350,6rtkit-daemon1038176-21sendmail-mta22:16:441
125899350,5rtkit-daemon945772-21/usr/sbin/munin19:25:191
125899350,3rtkit-daemon0-21swapper/119:34:431
125899340,6rtkit-daemon1128739-21ssh00:21:271
125899340,5rtkit-daemon1257-21rtkit-daemon22:30:020
125899340,4rtkit-daemon1257-21rtkit-daemon21:22:010
125899340,4rtkit-daemon1257-21rtkit-daemon00:34:470
125899340,3rtkit-daemon0-21swapper/120:09:040
125899330,4rtkit-daemon1257-21rtkit-daemon20:29:261
125899330,4rtkit-daemon1257-21rtkit-daemon19:38:341
125899330,3rtkit-daemon0-21swapper/119:45:520
125899330,3rtkit-daemon0-21swapper/021:33:041
938768993211,4cyclictest26-21ksoftirqd/123:09:491
125899320,3rtkit-daemon1257-21rtkit-daemon21:11:540
125899320,3rtkit-daemon0-21swapper/022:21:241
125899320,3rtkit-daemon0-21swapper/021:24:001
125899310,4rtkit-daemon0-21swapper/100:08:090
125899310,3rtkit-daemon1257-21rtkit-daemon23:37:461
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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