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2026-08-04 - 12:25
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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 Tue Aug 04, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3662813995275,520cyclictest0-21swapper/1400:09:416
366277599481481,0cyclictest3544833-21kworker/5:4+i915-unordered19:06:4111
3662764994818,57cyclictest0-21swapper/220:04:418
3662795994792,29cyclictest0-21swapper/1000:16:402
36627959947625,58cyclictest0-21swapper/1000:30:352
36628099947225,29cyclictest0-21swapper/1300:26:235
36627759946418,30cyclictest0-21swapper/519:34:4111
366277999459458,1cyclictest3691473-21kworker/6:1+i915-unordered00:09:4112
3662775994570,456cyclictest0-21swapper/523:18:4111
366278699455454,1cyclictest69750irq/159-i91520:59:4114
366278699451449,1cyclictest1818-21snmpd22:44:3714
3662775994506,29cyclictest0-21swapper/521:17:4111
36628099944726,419cyclictest0-21swapper/1322:01:245
36628069944625,420cyclictest0-21swapper/1220:30:244
36628069944625,420cyclictest0-21swapper/1219:45:034
36628069944625,420cyclictest0-21swapper/1219:40:234
366276499446446,0cyclictest0-21swapper/220:59:368
3662756994460,30cyclictest0-21swapper/022:09:260
36628139944524,420cyclictest0-21swapper/1422:13:036
36628139944422,421cyclictest0-21swapper/1422:29:256
366278699444444,0cyclictest69750irq/159-i91523:18:4114
36628139944322,420cyclictest0-21swapper/1421:34:026
36627959944321,30cyclictest0-21swapper/1019:27:412
36627649944322,418cyclictest0-21swapper/219:41:038
36628139944225,416cyclictest0-21swapper/1423:49:026
36628139944222,418cyclictest0-21swapper/1400:11:246
36627649944220,421cyclictest3857385-21/usr/sbin/munin23:06:028
36627649944220,421cyclictest3857385-21/usr/sbin/munin23:06:028
36628139944124,416cyclictest0-21swapper/1420:28:236
36627649944119,419cyclictest0-21swapper/200:26:028
3662756994410,438cyclictest0-21swapper/019:12:410
36628139944024,415cyclictest0-21swapper/1421:50:256
366275699440438,2cyclictest0-21swapper/020:59:410
366280299439436,2cyclictest3776223-21kworker/11:2+i915-unordered21:41:033
36627759943944,395cyclictest0-21swapper/500:06:4011
36628139943817,419cyclictest0-21swapper/1421:23:036
36628139943817,419cyclictest0-21swapper/1421:17:276
36628139943816,421cyclictest0-21swapper/1420:31:246
36628099943822,416cyclictest0-21swapper/1321:21:255
3662786994380,437cyclictest0-21swapper/821:46:5314
36627799943824,414cyclictest0-21swapper/621:32:4112
36628069943715,421cyclictest0-21swapper/1222:51:044
3662764994370,436cyclictest0-21swapper/219:06:158
36628139943615,419cyclictest0-21swapper/1419:50:026
36628139943613,422cyclictest0-21swapper/1422:58:236
36628139943613,422cyclictest0-21swapper/1422:58:236
36628069943616,419cyclictest0-21swapper/1223:03:244
36628069943616,419cyclictest0-21swapper/1223:03:244
36627649943618,417cyclictest0-21swapper/223:02:238
36627649943618,417cyclictest0-21swapper/223:02:238
36628139943516,417cyclictest0-21swapper/1419:57:236
36628069943515,418cyclictest0-21swapper/1223:21:024
366279599435434,1cyclictest0-21swapper/1023:04:412
366279599435434,1cyclictest0-21swapper/1023:04:412
366278699435434,1cyclictest69750irq/159-i91500:23:4114
366276799435434,1cyclictest0-21swapper/321:41:039
36628139943413,419cyclictest0-21swapper/1400:25:036
36628069943416,416cyclictest0-21swapper/1221:56:044
36627959943416,417cyclictest0-21swapper/1021:29:262
366278699434434,0cyclictest69750irq/159-i91521:02:4114
36628139943321,410cyclictest0-21swapper/1422:00:266
36628139943312,419cyclictest0-21swapper/1422:38:256
36628069943311,419cyclictest0-21swapper/1200:16:014
366275699433433,0cyclictest0-21swapper/022:44:370
36628099943214,417cyclictest0-21swapper/1320:44:415
366278999432431,1cyclictest0-21swapper/900:28:1315
366278699432431,1cyclictest69750irq/159-i91519:57:4114
36627759943214,417cyclictest0-21swapper/521:35:3711
36627719943214,30cyclictest0-21swapper/421:56:4110
36628099943111,419cyclictest0-21swapper/1319:31:035
366280699431431,0cyclictest0-21swapper/1222:11:394
366278699431430,1cyclictest69750irq/159-i91523:04:4114
366278699431430,1cyclictest69750irq/159-i91523:04:4114
36627649943011,418cyclictest0-21swapper/220:33:048
3662806994299,419cyclictest0-21swapper/1222:03:024
36627799942914,414cyclictest0-21swapper/619:48:4112
3662764994299,419cyclictest0-21swapper/223:00:248
3662764994299,419cyclictest0-21swapper/223:00:248
3662764994298,420cyclictest0-21swapper/223:23:278
366276499429425,3cyclictest3844335-21kworker/2:0+pm23:15:348
366275699429429,0cyclictest0-21swapper/023:18:410
366275699429427,2cyclictest0-21swapper/023:24:410
3662809994288,419cyclictest0-21swapper/1321:39:235
3662809994287,420cyclictest0-21swapper/1322:21:245
36627759942815,413cyclictest0-21swapper/500:02:4011
3662764994286,420cyclictest0-21swapper/221:05:258
366276099428425,3cyclictest1818-21snmpd00:28:131
3662809994276,420cyclictest0-21swapper/1320:27:235
3662806994276,420cyclictest0-21swapper/1220:25:244
366278699427426,1cyclictest69750irq/159-i91519:12:4114
366281799426424,2cyclictest26550irq/134-xhci_hcd21:24:527
3662809994267,417cyclictest0-21swapper/1323:16:245
3662809994266,418cyclictest0-21swapper/1323:57:235
3662806994264,421cyclictest0-21swapper/1221:50:024
3662764994266,419cyclictest0-21swapper/221:45:028
3662806994254,420cyclictest0-21swapper/1222:44:034
3662806994253,421cyclictest0-21swapper/1220:05:234
3662806994253,421cyclictest0-21swapper/1200:13:264
36628069942526,398cyclictest0-21swapper/1223:14:014
3662806994251,423cyclictest0-21swapper/1219:24:234
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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