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2025-12-15 - 00:49
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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 Sun Dec 14, 2025 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37522049947325,29cyclictest0-21swapper/1200:27:424
37522049947324,29cyclictest0-21swapper/1221:11:424
37521579947226,28cyclictest0-21swapper/021:54:410
37522099946618,29cyclictest0-21swapper/1320:37:215
37521729946323,29cyclictest0-21swapper/421:06:5810
37521659946215,30cyclictest4018252-21updatedb00:37:218
37522099946113,29cyclictest0-21swapper/1321:18:225
37521729945614,28cyclictest0-21swapper/422:46:5810
3752209994514,29cyclictest0-21swapper/1323:48:425
3752157994517,29cyclictest0-21swapper/022:58:570
37521809945023,30cyclictest0-21swapper/620:45:2112
3752180994500,54cyclictest0-21swapper/621:08:4212
37521809944923,30cyclictest0-21swapper/621:10:2212
37521619944825,422cyclictest0-21swapper/100:31:571
37522049944726,418cyclictest0-21swapper/1222:31:414
3752161994475,30cyclictest0-21swapper/121:01:581
37522099944512,425cyclictest0-21swapper/1321:47:205
37522049944524,419cyclictest0-21swapper/1200:04:424
37521579944428,415cyclictest0-21swapper/021:27:410
37522049944323,417cyclictest0-21swapper/1221:45:434
37521949944322,420cyclictest0-21swapper/1000:05:192
37522099944116,30cyclictest0-21swapper/1320:00:205
37522099944114,30cyclictest0-21swapper/1319:51:215
37521659944118,29cyclictest0-21swapper/221:38:588
37521619944125,415cyclictest0-21swapper/121:08:581
37521619944121,419cyclictest0-21swapper/119:43:201
37521619944118,30cyclictest0-21swapper/100:05:571
37522099944014,30cyclictest0-21swapper/1320:11:225
375216599440438,1cyclictest3893537-21kworker/2:0+i915-unordered22:26:218
375216599440438,1cyclictest3841302-21kworker/2:2+i915-unordered20:57:408
375216599440438,1cyclictest3809167-21kworker/2:1+i915-unordered20:18:198
37521619944020,419cyclictest0-21swapper/120:32:201
37521619944013,29cyclictest0-21swapper/121:44:531
37522099943913,29cyclictest0-21swapper/1321:44:205
37522099943913,29cyclictest0-21swapper/1319:49:405
37521949943918,420cyclictest0-21swapper/1023:56:202
375216599439437,1cyclictest3833514-21kworker/2:1+i915-unordered20:50:458
37521659943919,29cyclictest0-21swapper/221:42:588
37521659943918,29cyclictest0-21swapper/220:25:588
37521619943920,418cyclictest0-21swapper/122:12:201
37521619943920,418cyclictest0-21swapper/122:12:201
37521579943924,414cyclictest0-21swapper/000:06:190
37521579943921,417cyclictest0-21swapper/021:39:450
37522049943820,416cyclictest0-21swapper/1223:30:204
37521949943818,419cyclictest0-21swapper/1000:21:192
375216599438436,1cyclictest3853250-21kworker/2:2+i915-unordered21:10:438
37522099943713,29cyclictest0-21swapper/1319:36:215
37521709943724,412cyclictest0-21swapper/323:39:539
37522099943611,29cyclictest0-21swapper/1322:04:205
375216599436434,1cyclictest3941705-21kworker/2:2+i915-unordered23:00:428
37521659943613,30cyclictest0-21swapper/223:55:578
37521619943619,29cyclictest0-21swapper/120:57:581
37521579943621,415cyclictest0-21swapper/023:52:570
37521619943515,419cyclictest0-21swapper/122:18:211
3752209994349,30cyclictest0-21swapper/1323:50:195
37522099943413,420cyclictest0-21swapper/1300:13:195
37521619943416,417cyclictest0-21swapper/121:32:191
37522099943313,418cyclictest0-21swapper/1323:13:445
37522099943311,418cyclictest0-21swapper/1300:24:195
37521949943310,422cyclictest0-21swapper/1021:03:412
37521949943212,419cyclictest0-21swapper/1023:22:202
37521619943213,418cyclictest0-21swapper/120:41:221
37521619943212,418cyclictest0-21swapper/122:07:201
37521619943212,418cyclictest0-21swapper/122:07:201
37522099943112,416cyclictest0-21swapper/1322:21:435
37522099943111,418cyclictest0-21swapper/1321:56:205
37521619943113,417cyclictest0-21swapper/123:06:201
3752204994309,420cyclictest0-21swapper/1200:24:534
3752194994308,421cyclictest0-21swapper/1020:57:402
37521579943011,418cyclictest0-21swapper/022:48:200
3752204994298,420cyclictest0-21swapper/1223:05:194
3752194994298,420cyclictest0-21swapper/1000:18:202
3752194994297,421cyclictest0-21swapper/1022:01:442
3752199994287,420cyclictest0-21swapper/1121:00:193
3752194994286,421cyclictest0-21swapper/1020:04:202
3752172994288,419cyclictest0-21swapper/422:20:2210
3752165994289,418cyclictest0-21swapper/223:53:208
37521619942812,415cyclictest0-21swapper/100:38:571
3752180994270,29cyclictest0-21swapper/619:15:1912
3752180994270,29cyclictest0-21swapper/619:15:1912
3752165994278,418cyclictest0-21swapper/222:41:208
3752165994278,418cyclictest0-21swapper/222:18:438
3752161994275,419cyclictest0-21swapper/121:16:431
3752157994278,418cyclictest0-21swapper/020:34:190
3752157994277,419cyclictest0-21swapper/000:14:190
3752204994266,417cyclictest0-21swapper/1223:15:224
3752204994264,420cyclictest0-21swapper/1200:13:424
3752165994265,420cyclictest0-21swapper/221:51:438
3752157994257,417cyclictest0-21swapper/021:31:410
3752157994250,30cyclictest0-21swapper/023:09:200
3752204994240,30cyclictest0-21swapper/1219:21:584
375219999424418,5cyclictest1802-21snmpd22:32:103
3752165994245,418cyclictest0-21swapper/200:18:438
3752204994233,417cyclictest0-21swapper/1222:45:404
3752204994233,417cyclictest0-21swapper/1221:55:454
37522049942321,0cyclictest0-21swapper/1223:28:414
3752161994231,419cyclictest0-21swapper/123:58:201
3752213994220,0cyclictest0-21swapper/1423:15:456
37522049942225,394cyclictest0-21swapper/1223:20:424
37522049942222,399cyclictest0-21swapper/1200:31:414
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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