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2025-07-17 - 00:49
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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 rackeslot2.osadl.org (updated Wed Jul 16, 2025 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
18503052340,3sleep30-21swapper/312:00:243
16750472340,1sleep20-21swapper/210:20:232
159296522718,3sleep20-21swapper/209:34:352
1401416992711,2cyclictest1899414-21munin-run12:30:000
25010912618,3phc2sys0-21swapper/310:34:153
25010912518,3phc2sys0-21swapper/311:39:413
25010912518,2phc2sys0-21swapper/312:17:493
25010912518,2phc2sys0-21swapper/311:28:433
25010912418,3phc2sys0-21swapper/311:15:243
25010912418,3phc2sys0-21swapper/311:02:053
25010912418,2phc2sys0-21swapper/311:50:443
25010912418,2phc2sys0-21swapper/311:50:433
25010912418,2phc2sys0-21swapper/311:47:073
25010912418,2phc2sys0-21swapper/310:56:543
25010912418,2phc2sys0-21swapper/310:38:583
25010912418,2phc2sys0-21swapper/310:24:593
25010912418,2phc2sys0-21swapper/309:55:263
25010912418,2phc2sys0-21swapper/309:48:003
25010912418,2phc2sys0-21swapper/309:26:363
25010912418,2phc2sys0-21swapper/309:15:583
25010912418,2phc2sys0-21swapper/308:59:343
25010912418,2phc2sys0-21swapper/308:50:003
25010912418,2phc2sys0-21swapper/308:15:063
25010912418,2phc2sys0-21swapper/308:05:083
25010912418,2phc2sys0-21swapper/308:03:153
25010912418,2phc2sys0-21swapper/307:41:553
25010912417,2phc2sys0-21swapper/310:05:083
25010912318,3phc2sys0-21swapper/312:26:013
25010912318,3phc2sys0-21swapper/312:22:223
25010912318,3phc2sys0-21swapper/312:05:533
25010912318,3phc2sys0-21swapper/310:40:293
25010912318,3phc2sys0-21swapper/310:11:273
25010912318,3phc2sys0-21swapper/309:53:313
25010912318,3phc2sys0-21swapper/309:41:213
25010912318,3phc2sys0-21swapper/309:30:433
25010912318,3phc2sys0-21swapper/309:13:563
25010912318,3phc2sys0-21swapper/309:03:013
25010912318,3phc2sys0-21swapper/308:31:233
25010912318,3phc2sys0-21swapper/308:20:093
25010912318,3phc2sys0-21swapper/307:39:053
25010912317,2phc2sys0-21swapper/310:25:363
25010912317,2phc2sys0-21swapper/309:37:383
25010912317,2phc2sys0-21swapper/309:06:163
25010912317,2phc2sys0-21swapper/308:51:283
25010912317,2phc2sys0-21swapper/307:32:373
25010912317,2phc2sys0-21swapper/307:19:273
190670822318,3sleep30-21swapper/312:32:483
187096922318,3sleep30-21swapper/312:11:433
157404122318,3sleep30-21swapper/309:22:013
1401417992316,6cyclictest1-21systemd11:40:021
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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