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2026-04-19 - 22:14
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack4slot1.osadl.org (updated Sun Apr 19, 2026 13:40:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
27942995621730,562171cyclictest48-21kcompactd006:12:570
27942995621730,562171cyclictest48-21kcompactd006:12:570
315782667010,5sleep30-21swapper/313:18:493
315782667010,5sleep30-21swapper/313:18:493
228422616750,2sleep3321rcuc/320:43:483
218322496920,7sleep30-21swapper/320:04:023
218322496920,7sleep30-21swapper/320:04:023
17522496810,13sleep30-21swapper/302:14:023
17522496810,13sleep30-21swapper/302:14:023
245712463820,6sleep30-21swapper/317:03:593
245712463820,6sleep30-21swapper/317:03:593
198272410490,5sleep2261rcuc/217:53:512
198272410490,5sleep2261rcuc/217:53:512
148222388560,4sleep10-21swapper/121:33:501
148222388560,4sleep10-21swapper/121:33:501
186992386440,1sleep317534-21kworker/3:008:18:533
47232378180,6sleep30-21swapper/316:33:523
47232378180,6sleep30-21swapper/316:33:523
283392363910,3sleep1201rcuc/120:53:531
283392363910,3sleep1201rcuc/120:53:531
25552338610,3sleep30-21swapper/303:28:553
25552338610,3sleep30-21swapper/303:28:553
189632324440,7sleep10-21swapper/123:38:591
182032309080,6sleep30-21swapper/320:43:423
182032309080,6sleep30-21swapper/320:43:423
274492273070,2sleep30-21swapper/301:03:583
274492273070,2sleep30-21swapper/301:03:583
189822270600,5chrt0-21swapper/301:19:043
313512266830,14sleep10-21swapper/122:18:491
313512266830,14sleep10-21swapper/122:18:491
313512266830,14sleep10-21swapper/122:18:491
193682263930,7sleep30-21swapper/314:59:073
193682263930,7sleep30-21swapper/314:59:073
252992242650,7sleep30-21swapper/322:33:473
252992242650,7sleep30-21swapper/322:33:473
244652232480,5sleep30-21swapper/318:29:003
244652232480,5sleep30-21swapper/318:29:003
252952231440,5sleep10-21swapper/119:48:491
57482222180,7sleep10-21swapper/118:38:491
247392213750,7sleep30-21swapper/306:18:573
247392213750,7sleep30-21swapper/306:18:573
97382211270,17sleep20-21swapper/202:03:582
97382211270,17sleep20-21swapper/202:03:582
106472208170,6sleep30-21swapper/313:33:453
106472208170,6sleep30-21swapper/313:33:453
176752202620,6sleep30-21swapper/301:13:403
176752202620,6sleep30-21swapper/301:13:403
161642191840,10sleep30-21swapper/307:29:043
305462184260,6sleep20-21swapper/220:28:552
305462184260,6sleep20-21swapper/220:28:552
44882181240,4sleep30-21swapper/309:13:453
44882181240,4sleep30-21swapper/309:13:453
61282177620,4chrt0-21swapper/318:44:013
61282177620,4chrt0-21swapper/318:44:013
200442171240,8sleep20-21swapper/213:49:012
200442171240,8sleep20-21swapper/213:49:012
128522160780,5sleep10-21swapper/105:54:001
113882159730,4chrt0-21swapper/321:44:003
192282159050,8sleep10-21swapper/116:39:071
94612159040,22chrt0-21swapper/320:18:593
229252158250,2sleep10-21swapper/112:29:071
194532157480,4sleep115590-21kworker/1:320:54:011
194532157480,4sleep115590-21kworker/1:320:54:011
155082155380,10chrt0-21swapper/317:13:593
155082155380,10chrt0-21swapper/317:13:593
145842155030,2sleep30-21swapper/310:39:023
145842155030,2sleep30-21swapper/310:39:023
145842155030,2sleep30-21swapper/310:39:023
132632154630,10chrt0-21swapper/301:39:043
132632154630,10chrt0-21swapper/301:39:043
48622151920,7sleep10-21swapper/117:18:431
48622151920,7sleep10-21swapper/117:18:431
180872151760,2sleep30-21swapper/323:43:403
180872151760,2sleep30-21swapper/323:43:403
238352151700,6chrt0-21swapper/321:29:043
238352151700,6chrt0-21swapper/321:29:043
242742149410,5sleep30-21swapper/315:23:373
242742149410,5sleep30-21swapper/315:23:373
155272147490,8sleep30-21swapper/314:53:513
155272147490,8sleep30-21swapper/314:53:513
207242145930,5sleep30-21swapper/304:19:013
244272145600,7sleep273-21kswapd016:44:022
244272145600,7sleep273-21kswapd016:44:022
310212145160,15sleep10-21swapper/112:49:011
310212145160,15sleep10-21swapper/112:49:011
182592140930,13chrt0-21swapper/314:58:583
129682137810,17chrt0-21swapper/317:48:553
129682137810,17chrt0-21swapper/317:48:553
42342137800,1sleep333-21ksoftirqd/307:43:563
42342137800,1sleep333-21ksoftirqd/307:43:563
194512137260,10sleep20-21swapper/221:23:572
194512137260,10sleep20-21swapper/221:23:572
185702137020,10sleep10-21swapper/105:58:471
287622136620,4sleep30-21swapper/317:08:553
287622136620,4sleep30-21swapper/317:08:553
312372136260,5sleep30-21swapper/301:33:453
312372136260,5sleep30-21swapper/301:33:453
232962136240,2sleep123298-21/usr/sbin/munin21:03:541
57042134830,16sleep30-21swapper/300:28:473
79282133800,7chrt0-21swapper/207:08:522
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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