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2026-04-12 - 12:32
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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
Compare latency of primary with shadow system
Characteristics of the 100 highest latencies:
System rack0slot0.osadl.org (updated Sun Apr 12, 2026 00:45:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
56921590,5sleep72456899cyclictest21:55:177
2613821400,0sleep20-21swapper/223:15:332
2253721370,0sleep20-21swapper/221:23:532
763521180,0sleep20-21swapper/222:52:182
223321130,0sleep20-21swapper/222:24:282
1845621090,1sleep2321ktimersoftd/221:27:072
199582890,1sleep4501ktimersoftd/423:06:384
85912840,4sleep62456199cyclictest22:14:316
85912840,4sleep62456199cyclictest22:14:306
326882820,0sleep00-21swapper/021:27:520
143902820,1sleep314393-21sed00:20:183
200242800,0sleep50-21swapper/521:18:355
144842800,1sleep30-21swapper/323:08:053
70102790,0sleep30-21swapper/323:43:563
59342790,1sleep6671rcuc/600:30:166
84032780,0sleep10-21swapper/121:26:331
67962780,1sleep06773-21sshd23:28:230
224692780,1sleep50-21swapper/522:56:305
149902780,1sleep70-21swapper/723:20:127
42922770,0sleep50-21swapper/521:40:085
89192760,0sleep60-21swapper/600:16:366
305652760,1sleep07-21ksoftirqd/021:19:110
179922760,1sleep07-21ksoftirqd/000:11:580
287092750,1sleep328705-21sshd22:43:063
74142740,0sleep10-21swapper/100:38:591
68242740,2sleep62456199cyclictest21:10:596
174092740,1sleep3401rcuc/300:01:353
98972730,0sleep60-21swapper/623:09:376
15382730,1sleep41539-21sshd21:45:034
116502730,0sleep20-21swapper/223:44:112
58932720,0sleep2311rcuc/220:44:592
40732720,1sleep3401rcuc/323:50:383
40732720,1sleep3401rcuc/323:50:373
323082720,1sleep532306-21sshd23:36:375
323082720,1sleep532306-21sshd23:36:365
254642720,0sleep10-21swapper/119:10:131
218892720,0sleep2311rcuc/222:46:082
161462720,1sleep416144-21sshd22:04:364
126472720,1sleep412646-21sshd00:21:554
6262710,0sleep4491rcuc/423:45:174
143192710,0sleep40-21swapper/423:18:244
92692700,0sleep70-21swapper/700:16:377
8732700,0sleep40-21swapper/421:10:414
34602700,4sleep62456199cyclictest23:04:076
319372700,0sleep50-21swapper/522:20:475
75512690,0sleep70-21swapper/721:12:447
304222690,0sleep7761rcuc/723:05:297
292342690,0sleep20-21swapper/221:17:202
24692690,0sleep00-21swapper/000:17:580
201062690,0sleep10-21swapper/121:22:001
278252680,1sleep6681ktimersoftd/621:34:316
19682670,1sleep41967-21sshd22:33:054
320032660,0sleep30-21swapper/323:22:493
24152640,4sleep42455199cyclictest00:00:474
277482630,0sleep20-21swapper/221:56:402
3212620,0sleep10-21swapper/123:40:091
64682600,0sleep50-21swapper/521:10:595
2414425949,6sleep70-21swapper/719:07:407
2416025848,6sleep30-21swapper/319:07:523
2419325747,6sleep00-21swapper/019:08:210
2331725731,11sleep10-21swapper/119:05:171
2406725332,6sleep40-21swapper/419:06:404
2418125039,7sleep60-21swapper/619:08:116
2413924636,6sleep20-21swapper/219:07:352
306462430,0sleep50-21swapper/522:19:025
306462430,0sleep50-21swapper/522:19:025
2409824130,7sleep50-21swapper/519:07:065
266602290,0sleep40-21swapper/423:51:514
266602290,0sleep40-21swapper/423:51:504
2454099281,12cyclictest0-21swapper/200:08:322
97062270,1sleep40-21swapper/423:35:234
97062270,1sleep40-21swapper/423:35:234
266162270,0sleep30-21swapper/321:18:593
203002270,0sleep40-21swapper/423:13:364
54432250,0sleep70-21swapper/723:16:107
316882250,2sleep60-21swapper/600:14:296
257952250,0sleep40-21swapper/423:20:404
2454099240,20cyclictest0-21swapper/222:06:032
206562240,0sleep50-21swapper/521:30:395
284572230,1sleep30-21swapper/321:44:463
267862230,1sleep30-21swapper/322:48:093
2454099230,1cyclictest80750irq/25-eno1-rx-23:33:542
2454099230,1cyclictest80750irq/25-eno1-rx-23:33:532
100892230,1sleep610088-21bash23:50:576
100892230,1sleep610088-21bash23:50:566
248992220,1sleep10-21swapper/123:46:351
62622210,0sleep20-21swapper/200:25:062
49522210,0sleep20-21swapper/223:28:162
2454099210,20cyclictest8614-21sshd23:57:442
2454099210,20cyclictest0-21swapper/200:00:152
2454099210,1cyclictest0-21swapper/200:12:312
155362210,0sleep50-21swapper/522:14:545
155362210,0sleep50-21swapper/522:14:545
78402200,1sleep07836-21sshd22:21:140
58432200,1sleep00-21swapper/022:57:210
38382200,0sleep00-21swapper/022:36:360
267472200,1sleep00-21swapper/021:30:580
2455199200,2cyclictest17747-21sshd00:00:004
2454099200,13cyclictest0-21swapper/219:24:242
2452899200,1cyclictest0-21swapper/023:00:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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