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2026-09-08 - 00:54
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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 Mon Sep 07, 2026 12:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
147002990,2sleep02690899cyclictest10:16:580
279872750,2sleep22692899cyclictest09:22:542
177832720,0sleep117784-21sshd11:16:021
55752650,0sleep00-21swapper/010:24:190
92742520,0sleep10-21swapper/109:07:551
130172520,0sleep60-21swapper/612:10:456
196882500,0sleep10-21swapper/112:32:511
179912490,0sleep30-21swapper/311:57:213
141512490,0sleep60-21swapper/610:16:566
120512490,0sleep40-21swapper/410:07:014
2670224824,8sleep30-21swapper/307:04:113
200742480,0sleep40-21swapper/409:49:554
158032480,0sleep70-21swapper/711:27:457
69382470,1sleep36918-21sshd09:47:063
130552460,0sleep00-21swapper/011:53:090
126232460,0sleep30-21swapper/311:27:333
2658524533,8sleep20-21swapper/207:02:342
200172450,0sleep70-21swapper/711:47:407
193932450,0sleep4471rcuc/410:27:034
65062440,0sleep50-21swapper/512:26:065
2518624416,23sleep70-21swapper/707:00:067
42882430,0sleep50-21swapper/512:10:125
2669724330,9sleep00-21swapper/007:04:080
2652124331,8sleep50-21swapper/507:01:415
256952430,0sleep10-21swapper/109:48:161
195662430,0sleep20-21swapper/212:19:062
187812430,0sleep50-21swapper/510:32:575
144772430,0sleep70-21swapper/711:55:097
313092420,0sleep20-21swapper/211:14:592
2655124230,8sleep60-21swapper/607:02:066
246952420,0sleep10-21swapper/112:27:141
176632420,0sleep00-21swapper/010:56:230
69792410,0sleep10-21swapper/109:39:191
2643224130,8sleep10-21swapper/107:00:251
256752410,0sleep40-21swapper/411:10:364
181002410,2sleep42694499cyclictest09:20:164
2658724029,8sleep40-21swapper/407:02:364
205302400,0sleep50-21swapper/510:44:515
151812400,0sleep50-21swapper/510:01:185
52392390,0sleep6631rcuc/609:49:016
278092390,0sleep00-21swapper/012:17:360
218972390,0sleep50-21swapper/509:30:185
6812380,0sleep30-21swapper/309:13:263
54322380,0sleep10-21swapper/109:33:181
35832380,0sleep10-21swapper/111:42:451
284392360,2sleep22692899cyclictest09:17:012
215752350,2sleep12692099cyclictest11:37:571
24002290,1sleep62395-21sshd12:08:136
2692899219,1cyclictest131rcu_sched12:07:342
81432200,0sleep2311rcuc/210:48:002
26952992010,6cyclictest30255-21sshd11:05:035
2692899206,1cyclictest33-21ksoftirqd/210:14:052
26928992017,3cyclictest33-21ksoftirqd/211:29:062
26928992016,1cyclictest33-21ksoftirqd/211:54:332
26928992016,1cyclictest33-21ksoftirqd/209:38:012
2692899196,1cyclictest131rcu_sched11:49:502
26928991917,1cyclictest33-21ksoftirqd/210:17:122
26928991914,3cyclictest33-21ksoftirqd/210:25:212
259622190,0sleep60-21swapper/611:12:396
26928991816,1cyclictest33-21ksoftirqd/209:55:132
26928991813,3cyclictest33-21ksoftirqd/209:10:542
27392170,0sleep233-21ksoftirqd/210:08:272
2695299171,5cyclictest721-21dbus-daemon10:21:575
2692899175,1cyclictest33-21ksoftirqd/211:06:212
2692899174,1cyclictest33-21ksoftirqd/210:55:242
26928991715,1cyclictest33-21ksoftirqd/212:26:412
26928991715,1cyclictest33-21ksoftirqd/211:40:172
26928991715,1cyclictest33-21ksoftirqd/211:37:142
26928991715,1cyclictest33-21ksoftirqd/211:22:402
26928991715,1cyclictest33-21ksoftirqd/211:13:322
26928991715,1cyclictest33-21ksoftirqd/211:03:592
26928991715,1cyclictest33-21ksoftirqd/209:47:252
26928991714,3cyclictest33-21ksoftirqd/209:40:092
69242160,0sleep10-21swapper/110:36:061
301452160,1sleep330144-21grepconf.sh09:26:563
26966991614,1cyclictest73-21ksoftirqd/711:50:397
2695299160,13cyclictest0-21swapper/510:53:035
2695299160,1cyclictest0-21swapper/512:09:475
2692899168,1cyclictest33-21ksoftirqd/210:30:072
2692899163,1cyclictest33-21ksoftirqd/209:50:322
26928991615,1cyclictest33-21ksoftirqd/212:12:252
26928991614,1cyclictest33-21ksoftirqd/212:22:362
26928991614,1cyclictest33-21ksoftirqd/212:22:362
26928991614,1cyclictest33-21ksoftirqd/211:56:402
26928991614,1cyclictest33-21ksoftirqd/211:31:222
26928991614,1cyclictest33-21ksoftirqd/210:50:402
26928991614,1cyclictest33-21ksoftirqd/210:34:522
26928991614,1cyclictest33-21ksoftirqd/209:32:012
26928991613,2cyclictest33-21ksoftirqd/212:00:132
26928991613,1cyclictest33-21ksoftirqd/212:31:392
26928991612,3cyclictest33-21ksoftirqd/209:25:042
26928991612,1cyclictest33-21ksoftirqd/210:03:432
2692899160,2cyclictest131rcu_sched10:23:302
2692899160,15cyclictest31160-21kworker/2:209:06:042
40402150,1sleep64038-21grepconf.sh11:25:046
26966991513,1cyclictest73-21ksoftirqd/709:07:507
26966991510,2cyclictest73-21ksoftirqd/710:28:107
2695299152,1cyclictest30783-21systemd-cgroups09:21:045
26952991514,1cyclictest57-21ksoftirqd/509:35:285
2695299151,5cyclictest0-21swapper/509:53:185
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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