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2026-05-08 - 19:06
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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 rack3slot0.osadl.org (updated Fri May 08, 2026 12:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
314792750,2sleep7793599cyclictest09:42:157
157392700,0sleep3391rcuc/312:34:073
80872650,2sleep0787599cyclictest11:41:090
151112570,0sleep20-21swapper/209:29:362
25892560,0sleep60-21swapper/610:59:356
40412520,2sleep0787599cyclictest11:21:230
132652510,1sleep513264-21grepconf.sh12:02:535
748225026,8sleep60-21swapper/607:06:006
102192500,0sleep1758-21runrttasks10:44:161
758224926,8sleep30-21swapper/307:07:253
154202490,0sleep40-21swapper/410:01:024
147652480,0sleep70-21swapper/711:47:177
40922470,1sleep24087-21sshd10:25:432
213232470,0sleep50-21swapper/511:26:175
68522450,2sleep1788399cyclictest11:50:401
260572440,0sleep60-21swapper/612:26:416
310142430,0sleep40-21swapper/409:32:274
317082420,0sleep131706-21sshd09:58:191
199732420,0sleep00-21swapper/012:12:570
173552420,0sleep30-21swapper/309:18:003
758824129,8sleep00-21swapper/007:07:300
756524129,9sleep40-21swapper/407:07:104
25642410,0sleep60-21swapper/610:06:006
147482410,0sleep60-21swapper/611:22:016
751924028,9sleep70-21swapper/707:06:337
739524028,8sleep50-21swapper/507:04:465
54422400,2sleep6792799cyclictest10:27:476
308202400,0sleep20-21swapper/211:26:542
301222400,0sleep30-21swapper/309:58:133
122612400,0sleep7711rcuc/710:36:057
758923927,9sleep10-21swapper/107:07:311
50572390,0sleep20-21swapper/210:23:592
33782390,0sleep40-21swapper/412:13:574
232822390,1sleep123284-21grepconf.sh11:08:431
741023827,8sleep20-21swapper/207:04:592
789599256,1cyclictest33-21ksoftirqd/210:05:042
7895992310,1cyclictest33-21ksoftirqd/209:26:302
15066-21230,1systemd791999cyclictest11:04:145
7903992218,4cyclictest41-21ksoftirqd/311:19:413
7903992217,3cyclictest41-21ksoftirqd/309:12:303
789599229,4cyclictest33-21ksoftirqd/212:12:592
790399217,1cyclictest41-21ksoftirqd/312:28:013
789599218,1cyclictest33-21ksoftirqd/209:34:382
789599217,3cyclictest33-21ksoftirqd/211:14:442
7895992114,4cyclictest33-21ksoftirqd/209:16:222
7895992111,2cyclictest33-21ksoftirqd/210:39:392
7919992012,1cyclictest30952-21sshd09:26:445
7903992014,3cyclictest41-21ksoftirqd/310:16:293
7903992013,4cyclictest41-21ksoftirqd/310:40:483
7903992010,1cyclictest41-21ksoftirqd/312:01:253
789599208,1cyclictest33-21ksoftirqd/210:14:322
789599207,2cyclictest33-21ksoftirqd/211:51:202
179282200,1sleep01-21systemd09:33:350
791999195,5cyclictest1-21systemd12:35:165
791999193,0cyclictest0-21swapper/511:20:245
7903991913,3cyclictest41-21ksoftirqd/310:05:283
789599199,1cyclictest33-21ksoftirqd/209:48:172
789599196,2cyclictest33-21ksoftirqd/211:35:062
789599196,1cyclictest33-21ksoftirqd/210:58:032
789599193,1cyclictest33-21ksoftirqd/212:18:322
7895991916,3cyclictest33-21ksoftirqd/212:23:072
7895991915,3cyclictest33-21ksoftirqd/209:55:112
7895991912,4cyclictest33-21ksoftirqd/211:45:112
314152190,1sleep3758-21runrttasks10:23:353
791999182,3cyclictest23536-21kworker/u16:110:24:525
791999180,3cyclictest0-21swapper/511:51:005
790399186,3cyclictest41-21ksoftirqd/311:54:473
790399184,3cyclictest41-21ksoftirqd/312:22:273
7903991816,1cyclictest41-21ksoftirqd/312:15:173
7903991815,3cyclictest41-21ksoftirqd/310:00:383
790399180,5cyclictest121rcu_preempt11:39:523
789599188,2cyclictest33-21ksoftirqd/209:11:182
789599186,1cyclictest33-21ksoftirqd/212:38:222
789599185,4cyclictest33-21ksoftirqd/209:50:582
789599184,1cyclictest33-21ksoftirqd/210:50:582
7895991816,1cyclictest19776-21sshd11:55:122
789599180,2cyclictest131rcu_sched12:07:062
154562180,1sleep115449-21sshd10:44:321
7919991711,1cyclictest30323-21/usr/sbin/munin07:44:425
790399175,1cyclictest41-21ksoftirqd/311:50:303
790399175,1cyclictest41-21ksoftirqd/310:51:443
790399172,2cyclictest41-21ksoftirqd/310:27:223
7903991716,1cyclictest41-21ksoftirqd/311:38:073
7903991716,1cyclictest41-21ksoftirqd/309:50:233
7903991715,1cyclictest41-21ksoftirqd/311:13:203
7903991715,1cyclictest41-21ksoftirqd/310:30:323
7903991715,1cyclictest41-21ksoftirqd/309:29:223
7903991715,1cyclictest41-21ksoftirqd/309:19:323
7903991714,2cyclictest464-21systemd-journal11:28:233
7903991714,2cyclictest41-21ksoftirqd/310:55:183
7903991714,2cyclictest41-21ksoftirqd/310:34:393
7903991714,1cyclictest41-21ksoftirqd/312:08:503
7903991713,1cyclictest41-21ksoftirqd/310:45:133
7903991713,1cyclictest41-21ksoftirqd/309:33:313
789599178,5cyclictest33-21ksoftirqd/211:00:002
789599178,1cyclictest33-21ksoftirqd/211:41:512
789599177,1cyclictest33-21ksoftirqd/212:25:422
789599177,1cyclictest33-21ksoftirqd/210:45:352
789599176,4cyclictest33-21ksoftirqd/211:31:222
789599176,3cyclictest33-21ksoftirqd/209:40:542
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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