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2026-04-17 - 07:27
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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 Apr 17, 2026 00:43:26)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
260232860,2sleep33034299cyclictest23:22:173
159582760,0sleep60-21swapper/622:32:546
57472720,0sleep10-21swapper/100:02:271
185672700,1sleep2321ktimersoftd/222:01:102
283942680,0sleep20-21swapper/221:59:582
301912530,0sleep60-21swapper/623:24:286
293732530,0sleep50-21swapper/523:30:045
236772500,0sleep00-21swapper/022:03:240
275902490,0sleep30-21swapper/300:01:493
162862490,0sleep50-21swapper/523:49:585
96312480,0sleep70-21swapper/700:21:327
70582480,0sleep10-21swapper/123:07:571
40542480,0sleep60-21swapper/623:47:196
79542470,0sleep5551rcuc/523:56:555
69382460,0sleep70-21swapper/721:45:377
48062460,1sleep44804-21sshd21:36:054
151412460,1sleep415101-21sshd22:29:084
148112460,0sleep60-21swapper/622:21:336
71582450,0sleep50-21swapper/500:28:595
230062440,0sleep00-21swapper/022:29:360
17262440,0sleep70-21swapper/700:19:157
100632440,0sleep10-21swapper/100:17:491
72992430,0sleep60-21swapper/623:00:336
58032430,1sleep45791-21bash23:21:064
321692430,0sleep6631rcuc/623:01:536
203102430,0sleep6631rcuc/622:42:316
311772420,0sleep60-21swapper/600:20:596
252012420,0sleep40-21swapper/423:57:584
81482410,1sleep18147-21sshd23:32:321
43302410,0sleep20-21swapper/223:49:152
310862410,0sleep50-21swapper/523:35:485
2981624129,8sleep00-21swapper/019:01:230
271172410,0sleep50-21swapper/522:09:145
145432410,0sleep60-21swapper/600:01:046
136702410,0sleep40-21swapper/400:01:024
12262410,0sleep01229-21timerwakeupswit21:21:040
58432400,0sleep50-21swapper/521:26:535
42142400,0sleep60-21swapper/621:11:566
2995424027,9sleep40-21swapper/419:03:114
2983024029,8sleep50-21swapper/519:01:365
288902400,0sleep30-21swapper/321:11:293
255572400,0sleep30-21swapper/321:20:423
21772400,0sleep50-21swapper/521:10:035
214972400,0sleep60-21swapper/623:53:596
2996123927,8sleep20-21swapper/219:03:172
2993523928,8sleep70-21swapper/719:02:587
2986023927,8sleep30-21swapper/319:01:583
237382390,0sleep10-21swapper/123:29:441
18372390,0sleep00-21swapper/023:52:490
136792390,0sleep00-21swapper/023:34:470
118522390,0sleep20-21swapper/222:30:502
106502390,0sleep33034299cyclictest00:17:513
2990723825,9sleep60-21swapper/619:02:336
2982623826,9sleep10-21swapper/119:01:321
170032380,0sleep40-21swapper/421:46:064
160652380,0sleep70-21swapper/700:10:427
160542380,0sleep70-21swapper/723:38:397
104292380,0sleep50-21swapper/523:17:385
171722310,1sleep314082-21/usr/sbin/munin23:01:023
295592280,0sleep00-21swapper/022:39:210
30350992711,3cyclictest49-21ksoftirqd/422:12:324
30350992618,3cyclictest49-21ksoftirqd/423:36:054
30350992511,3cyclictest49-21ksoftirqd/423:30:454
30350992510,4cyclictest49-21ksoftirqd/422:40:594
3035099249,2cyclictest49-21ksoftirqd/400:17:004
3035099248,3cyclictest49-21ksoftirqd/423:12:394
30350992410,3cyclictest49-21ksoftirqd/422:10:124
30350992312,2cyclictest49-21ksoftirqd/421:52:194
30350992310,3cyclictest49-21ksoftirqd/421:11:184
3035099228,1cyclictest49-21ksoftirqd/423:04:564
3035099227,3cyclictest49-21ksoftirqd/422:58:564
30350992218,3cyclictest49-21ksoftirqd/400:31:074
30350992218,3cyclictest49-21ksoftirqd/400:15:114
30350992210,2cyclictest49-21ksoftirqd/423:19:524
326002210,0sleep5561ktimersoftd/500:02:075
3035099219,3cyclictest49-21ksoftirqd/423:43:254
3035099215,1cyclictest49-21ksoftirqd/422:38:014
3035099214,2cyclictest49-21ksoftirqd/421:17:354
30350992113,3cyclictest49-21ksoftirqd/422:46:224
30350992113,3cyclictest49-21ksoftirqd/422:46:224
30320992115,1cyclictest20211-21kworker/u16:023:56:470
3035099208,3cyclictest49-21ksoftirqd/421:28:164
3035099207,3cyclictest49-21ksoftirqd/421:05:574
3035099206,1cyclictest49-21ksoftirqd/423:49:134
3035099206,1cyclictest49-21ksoftirqd/400:05:464
3035099205,4cyclictest49-21ksoftirqd/422:21:184
3035099205,3cyclictest49-21ksoftirqd/422:53:004
3035099203,1cyclictest49-21ksoftirqd/422:03:194
30350992016,3cyclictest49-21ksoftirqd/421:34:114
30350992016,1cyclictest49-21ksoftirqd/400:25:504
30350992011,1cyclictest49-21ksoftirqd/422:18:594
30350992010,1cyclictest49-21ksoftirqd/400:21:054
3034299203,1cyclictest41-21ksoftirqd/300:14:503
30342992018,1cyclictest41-21ksoftirqd/322:16:553
3034299201,3cyclictest131rcu_sched22:11:173
3034299201,1cyclictest41-21ksoftirqd/321:23:063
30365991917,1cyclictest65-21ksoftirqd/623:20:456
30365991914,1cyclictest65-21ksoftirqd/621:18:576
30357991914,5cyclictest0-21swapper/500:23:285
3035099199,1cyclictest49-21ksoftirqd/421:21:554
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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