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2026-04-21 - 04:44
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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 100 highest latencies:
System rack1slot3.osadl.org (updated Tue Apr 21, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41351562135,7sleep14135158-21cron23:50:011
402082099130,1cyclictest0-21swapper/319:10:123
402082099130,12cyclictest0-21swapper/322:10:133
402082099130,11cyclictest0-21swapper/323:50:133
402082099130,10cyclictest0-21swapper/319:25:013
4020820991212,0cyclictest0-21swapper/319:35:203
4020820991212,0cyclictest0-21swapper/319:25:123
4020820991211,0cyclictest0-21swapper/322:40:163
4020820991211,0cyclictest0-21swapper/322:25:143
4020820991211,0cyclictest0-21swapper/321:00:123
402082099120,1cyclictest0-21swapper/323:30:133
402082099120,1cyclictest0-21swapper/321:20:133
402082099120,11cyclictest0-21swapper/323:25:003
402082099120,11cyclictest0-21swapper/322:00:123
402082099120,11cyclictest0-21swapper/320:50:003
402082099120,11cyclictest0-21swapper/320:35:193
402082099120,11cyclictest0-21swapper/320:10:123
402082099118,1cyclictest0-21swapper/323:10:123
4020820991110,0cyclictest0-21swapper/319:50:133
402082099110,8cyclictest0-21swapper/322:35:003
402082099110,10cyclictest0-21swapper/323:45:013
402082099110,10cyclictest0-21swapper/322:10:013
402082099110,10cyclictest0-21swapper/321:25:123
402082099110,10cyclictest0-21swapper/320:20:183
402082099110,10cyclictest0-21swapper/320:17:003
402082099110,10cyclictest0-21swapper/319:30:213
402082099110,0cyclictest0-21swapper/323:40:003
402082099110,0cyclictest0-21swapper/323:05:123
402082099110,0cyclictest0-21swapper/321:40:013
402082099109,0cyclictest0-21swapper/320:55:113
4020820991010,0cyclictest0-21swapper/323:00:173
4020820991010,0cyclictest0-21swapper/300:15:163
402082099100,9cyclictest0-21swapper/321:10:163
402082099100,9cyclictest0-21swapper/300:35:193
402082099100,10cyclictest0-21swapper/323:15:193
402082099100,0cyclictest0-21swapper/321:35:023
40208209999,0cyclictest0-21swapper/321:50:163
40208209999,0cyclictest0-21swapper/321:45:123
40208209999,0cyclictest0-21swapper/321:10:013
40208209999,0cyclictest0-21swapper/320:30:183
40208209999,0cyclictest0-21swapper/320:05:143
40208209999,0cyclictest0-21swapper/300:15:013
40208209990,8cyclictest0-21swapper/323:45:123
40208209988,0cyclictest0-21swapper/323:23:353
40208209988,0cyclictest0-21swapper/322:55:113
40208209988,0cyclictest0-21swapper/322:35:213
40208209988,0cyclictest0-21swapper/300:00:173
40208209987,0cyclictest0-21swapper/322:48:213
40208209987,0cyclictest0-21swapper/321:55:193
40208209987,0cyclictest0-21swapper/300:05:143
4019039281,4sleep30-21swapper/319:05:133
40208209977,0cyclictest0-21swapper/322:50:173
40208209976,0cyclictest0-21swapper/320:00:173
40208209970,0cyclictest0-21swapper/321:40:183
40208209966,0cyclictest0-21swapper/322:19:123
40208209966,0cyclictest0-21swapper/320:50:113
40208209966,0cyclictest0-21swapper/320:25:123
40208209966,0cyclictest0-21swapper/300:35:003
40208209965,0cyclictest0-21swapper/320:40:133
4019138260,4sleep04019399-21cstates19:05:130
40208209955,0cyclictest0-21swapper/319:55:123
40208209955,0cyclictest0-21swapper/319:15:013
40208209954,1cyclictest4069734-21turbostat21:19:563
40208209954,1cyclictest0-21swapper/300:25:133
40208209950,5cyclictest0-21swapper/323:55:133
4120308240,3sleep04120479-21grep23:15:130
40208209944,0cyclictest0-21swapper/322:20:493
40208209944,0cyclictest0-21swapper/319:40:183
40208209941,2cyclictest4148210-21chrt00:20:083
4020426242,1sleep20-21swapper/219:06:492
4019813241,1sleep10-21swapper/119:05:191
4112157230,2sleep24112361-21forks22:55:142
4098896230,2sleep24098935-21systemd22:25:002
4093065230,2sleep24093154-21kernelversion22:10:162
4032079230,2sleep24032250-21python319:35:182
40208209930,2cyclictest0-21swapper/319:45:113
4148312220,1sleep14148218-21/usr/sbin/munin00:20:141
4146366220,0sleep00-21swapper/000:15:140
4146108220,1sleep20-21swapper/200:15:112
4142073220,1sleep14142368-21df00:05:131
4140975220,0sleep00-21swapper/000:00:570
4129401220,1sleep14129593-21strings23:35:161
4127814220,1sleep24128096-21users23:30:212
4111920220,0sleep00-21swapper/022:55:130
4090912220,1sleep24090996-21tr22:05:152
4088132220,0sleep00-21swapper/021:59:320
4084465220,1sleep24084712-21diskstats21:50:142
4081660220,0sleep10-21swapper/121:42:281
4074172220,0sleep00-21swapper/021:25:140
4048700220,0sleep00-21swapper/020:20:140
4048277220,1sleep24048390-21latency_hist20:20:012
4037750220,1sleep20-21swapper/219:50:182
4026947220,1sleep14027073-21apt-config19:25:011
4026733220,2sleep00-21swapper/019:22:160
4021774220,1sleep04021946-21python319:10:190
4156063210,0sleep00-21swapper/000:35:420
4155617210,0sleep10-21swapper/100:35:201
4153991210,0sleep10-21swapper/100:30:471
4153162210,0sleep20-21swapper/200:30:162
4152875210,0sleep00-21swapper/000:30:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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