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2026-04-23 - 03:29
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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 rack0slot5.osadl.org (updated Thu Apr 23, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2849499953924,514cyclictest0-21swapper/1120:35:543
28493099504503,1cyclictest515056-21kworker/7:2+i915-unordered23:54:5313
28495399497496,1cyclictest546870-21kworker/12:1+i915-unordered00:30:534
28492299496495,1cyclictest446555-21kworker/5:2+i915-unordered22:31:5411
28494999489487,2cyclictest462464-21kworker/11:2+i915-unordered22:55:533
28493099483482,1cyclictest481358-21kworker/7:1+i915-unordered23:35:5313
28496499476446,30cyclictest0-21swapper/1523:35:537
28491999475473,2cyclictest0-21swapper/400:30:5310
2849169947527,30cyclictest0-21swapper/320:27:379
2849169947525,448cyclictest0-21swapper/320:45:369
2849499947119,59cyclictest0-21swapper/1120:16:543
28496499469467,2cyclictest0-21swapper/1523:54:537
2849119946924,29cyclictest0-21swapper/220:12:158
2849119946816,29cyclictest0-21swapper/222:24:158
2849169946616,29cyclictest0-21swapper/319:44:169
28491999465464,1cyclictest366102-21kworker/4:1+i915-unordered20:51:5410
28496499462462,0cyclictest494647-21kworker/15:3+i915-unordered23:26:537
28495899457427,30cyclictest0-21swapper/1322:31:545
2849119945711,29cyclictest0-21swapper/221:44:398
28494199452450,2cyclictest337753-21kworker/10:1+i915-unordered20:11:542
284916994521,34cyclictest0-21swapper/320:20:159
2849119945222,30cyclictest0-21swapper/221:09:178
284911994502,29cyclictest0-21swapper/220:02:398
28495899449447,2cyclictest0-21swapper/1322:10:545
28494999449446,2cyclictest450322-21kworker/u64:5+events_unbound22:31:153
28494199448447,1cyclictest0-21swapper/1020:30:542
284907994489,438cyclictest0-21swapper/123:35:531
2849119944721,29cyclictest0-21swapper/200:02:158
284949994443,30cyclictest0-21swapper/1119:52:543
2849119944418,29cyclictest0-21swapper/200:12:158
2849399944324,418cyclictest0-21swapper/920:52:4015
2849399944323,419cyclictest0-21swapper/923:58:3715
2849199944318,30cyclictest0-21swapper/422:01:3610
2849399944223,418cyclictest0-21swapper/920:11:3815
2849399944223,0cyclictest0-21swapper/919:54:1515
2849119944224,416cyclictest0-21swapper/219:47:168
2849199944114,30cyclictest0-21swapper/423:53:1410
2849119944115,30cyclictest0-21swapper/223:53:358
28493999440439,1cyclictest69750irq/159-i91522:31:5415
28491199440439,1cyclictest26350irq/126-xhci_hcd00:29:538
2849119944024,414cyclictest0-21swapper/220:18:158
2849119944022,415cyclictest0-21swapper/220:23:168
28493999439438,1cyclictest0-21swapper/921:08:5415
2849539943823,414cyclictest0-21swapper/1220:57:544
2849199943817,30cyclictest0-21swapper/400:35:1610
2849119943813,29cyclictest0-21swapper/222:09:368
2849119943812,28cyclictest0-21swapper/221:18:378
28493999437436,1cyclictest69750irq/159-i91523:35:5315
28494199436435,1cyclictest0-21swapper/1019:44:542
284958994359,29cyclictest0-21swapper/1320:59:375
2849419943523,411cyclictest0-21swapper/1021:00:542
2849229943513,421cyclictest0-21swapper/521:45:1511
2849589943313,30cyclictest0-21swapper/1322:27:535
2849419943318,414cyclictest0-21swapper/1020:26:542
2849229943312,420cyclictest0-21swapper/520:04:1511
2849199943312,30cyclictest0-21swapper/420:05:3510
28491699433432,1cyclictest0-21swapper/320:34:059
2849119943314,418cyclictest0-21swapper/221:39:398
28495399432431,1cyclictest0-21swapper/1222:51:534
284916994314,30cyclictest0-21swapper/300:12:389
28496299430429,1cyclictest337954-21kworker/14:2+i915-unordered21:21:546
284916994309,420cyclictest0-21swapper/321:29:169
284916994309,420cyclictest0-21swapper/321:29:169
28492799429427,1cyclictest0-21swapper/621:21:5412
284922994298,420cyclictest0-21swapper/519:48:3711
284907994299,419cyclictest0-21swapper/121:07:371
28493599427423,3cyclictest1818-21snmpd20:45:0514
284922994277,419cyclictest0-21swapper/520:36:3711
284922994277,419cyclictest0-21swapper/519:33:3811
284922994276,420cyclictest0-21swapper/520:47:1611
284922994275,421cyclictest0-21swapper/521:12:3811
284907994277,419cyclictest0-21swapper/120:20:361
28490399427424,2cyclictest65979-21kworker/0:2+pm21:58:490
284941994269,416cyclictest0-21swapper/1021:35:532
284941994269,416cyclictest0-21swapper/1021:35:532
284941994260,29cyclictest0-21swapper/1020:04:542
284935994260,425cyclictest0-21swapper/821:58:4914
284922994267,418cyclictest0-21swapper/522:16:3811
284916994260,29cyclictest0-21swapper/300:05:369
284922994253,421cyclictest0-21swapper/523:47:3911
284922994253,421cyclictest0-21swapper/520:39:3711
2849229942519,405cyclictest0-21swapper/523:39:1711
2849169942526,398cyclictest0-21swapper/320:15:389
284964994240,423cyclictest0-21swapper/1520:39:157
28495399424422,1cyclictest1818-21snmpd22:33:054
284949994242,30cyclictest0-21swapper/1123:25:533
284941994247,416cyclictest0-21swapper/1020:34:542
284949994222,419cyclictest0-21swapper/1122:19:173
2849399942225,396cyclictest0-21swapper/919:30:1515
284911994220,419cyclictest0-21swapper/219:34:158
28490799421420,1cyclictest0-21swapper/120:34:051
284958994201,29cyclictest0-21swapper/1323:12:535
28492299420419,1cyclictest0-21swapper/523:10:5311
2849119942023,396cyclictest0-21swapper/221:32:158
2849119942023,396cyclictest0-21swapper/221:32:158
2849119942022,394cyclictest0-21swapper/222:33:388
28490399420418,1cyclictest0-21swapper/020:45:050
28496299419418,1cyclictest1818-21snmpd21:58:496
28494999419415,2cyclictest325920-21kworker/11:2+events19:59:153
28493999419416,2cyclictest518726-21kworker/9:0+pm00:10:4915
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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