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2025-12-21 - 12:49
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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 21, 2025 00:43:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
35321459953520,514cyclictest0-21swapper/219:57:448
353219599518516,1cyclictest3597661-21kworker/14:1+i915-unordered20:46:446
353219599504503,1cyclictest0-21swapper/1421:48:446
353219599504503,1cyclictest0-21swapper/1421:48:446
35321389950038,461cyclictest171ktimers/021:55:440
353216099499468,31cyclictest0-21swapper/621:55:4412
35321389949940,459cyclictest0-21swapper/022:30:440
35321389949720,475cyclictest0-21swapper/023:46:440
353217299489459,30cyclictest0-21swapper/900:15:4415
35321389948119,461cyclictest0-21swapper/021:03:440
353216499480478,1cyclictest0-21swapper/723:46:4413
353216099480478,2cyclictest3646559-21kworker/6:0+i915-unordered21:48:4412
353216099480478,2cyclictest3646559-21kworker/6:0+i915-unordered21:48:4412
35321389947918,460cyclictest0-21swapper/021:48:440
35321389947918,460cyclictest0-21swapper/021:48:440
3532145994778,468cyclictest0-21swapper/219:48:448
3532138994772,474cyclictest0-21swapper/022:05:440
353219599476475,1cyclictest0-21swapper/1422:28:446
35321799947627,28cyclictest0-21swapper/1020:29:072
35321429947528,29cyclictest0-21swapper/100:04:291
35321879947323,30cyclictest0-21swapper/1220:24:274
35321429947226,28cyclictest0-21swapper/100:26:071
35321799947120,29cyclictest0-21swapper/1023:35:262
35321499947127,28cyclictest0-21swapper/322:58:449
35321499947125,29cyclictest0-21swapper/322:25:079
3532138994712,467cyclictest0-21swapper/022:10:440
35321389947110,460cyclictest0-21swapper/020:16:440
35321649947025,29cyclictest0-21swapper/721:13:0713
35321429947023,29cyclictest0-21swapper/100:21:071
35321799946919,29cyclictest0-21swapper/1000:13:072
35321429946719,30cyclictest0-21swapper/120:16:441
35321499946618,29cyclictest0-21swapper/300:32:299
353214999463457,5cyclictest1802-21snmpd23:47:559
353216099462462,0cyclictest0-21swapper/620:46:4412
35321429946218,30cyclictest0-21swapper/100:31:441
35321959946115,29cyclictest0-21swapper/1420:56:446
35321389946118,0cyclictest0-21swapper/019:43:440
35321429945712,29cyclictest0-21swapper/123:08:441
35321389945616,0cyclictest0-21swapper/020:10:440
3532142994557,29cyclictest0-21swapper/122:17:071
35321429945312,30cyclictest0-21swapper/122:47:441
35321799945225,28cyclictest0-21swapper/1020:11:282
3532160994529,29cyclictest0-21swapper/623:22:4412
353216099452450,2cyclictest3694946-21kworker/6:1+i915-unordered22:28:4412
35321429945220,30cyclictest0-21swapper/120:53:291
3532179994510,30cyclictest0-21swapper/1023:01:072
353213899451450,1cyclictest0-21swapper/022:28:440
3532142994503,29cyclictest0-21swapper/120:14:071
35321389945010,439cyclictest0-21swapper/019:48:440
3532179994490,30cyclictest0-21swapper/1022:17:282
3532142994490,29cyclictest0-21swapper/122:28:071
3532142994490,29cyclictest0-21swapper/122:02:291
3532138994490,29cyclictest0-21swapper/022:50:050
3532199994482,30cyclictest0-21swapper/1521:10:447
3532187994480,30cyclictest0-21swapper/1223:14:064
3532179994480,30cyclictest0-21swapper/1021:30:292
3532149994482,29cyclictest0-21swapper/320:35:089
35321389944823,28cyclictest0-21swapper/019:31:440
353219099447444,2cyclictest0-21swapper/1323:58:455
35321879944722,29cyclictest0-21swapper/1221:03:074
353214999447444,2cyclictest3645417-21kworker/u64:12+events_unbound21:42:079
353214999447444,2cyclictest3645417-21kworker/u64:12+events_unbound21:42:079
35321799944619,29cyclictest0-21swapper/1019:46:442
3532157994460,445cyclictest0-21swapper/521:57:0711
3532149994460,29cyclictest0-21swapper/320:10:069
3532142994460,26cyclictest0-21swapper/120:38:071
353214999445444,1cyclictest0-21swapper/321:02:299
3532138994452,30cyclictest0-21swapper/022:37:440
353214999444441,2cyclictest3589465-21kworker/u64:0+events_unbound20:34:289
35321499944425,419cyclictest0-21swapper/323:11:279
35321499944424,419cyclictest0-21swapper/321:36:289
35321499944424,419cyclictest0-21swapper/321:14:299
35321459944419,29cyclictest0-21swapper/222:21:448
35321429944427,417cyclictest0-21swapper/120:33:071
35321959944323,419cyclictest0-21swapper/1422:21:056
3532157994430,0cyclictest0-21swapper/523:32:0611
3532157994430,0cyclictest0-21swapper/523:18:4411
3532157994430,0cyclictest0-21swapper/522:59:0711
353214999443438,3cyclictest0-21swapper/323:58:459
35321499944324,418cyclictest0-21swapper/321:31:289
35321499944323,419cyclictest0-21swapper/300:22:069
35321959944222,420cyclictest0-21swapper/1400:02:056
35321879944216,30cyclictest0-21swapper/1223:45:284
35321829944221,419cyclictest0-21swapper/1121:21:283
353215799442440,1cyclictest0-21swapper/523:58:4511
353214999442441,1cyclictest0-21swapper/322:04:069
35321499944221,420cyclictest0-21swapper/323:33:079
35321459944223,418cyclictest0-21swapper/223:20:078
35321429944223,416cyclictest0-21swapper/123:46:061
35321959944122,418cyclictest0-21swapper/1423:22:076
35321459944124,416cyclictest0-21swapper/221:53:448
35321459944124,416cyclictest0-21swapper/221:53:448
35321429944123,416cyclictest0-21swapper/123:24:271
35321429944123,415cyclictest0-21swapper/123:58:291
35321959944017,422cyclictest0-21swapper/1422:58:286
353216499440439,1cyclictest0-21swapper/721:17:4413
353214299440439,1cyclictest3780107-21kworker/1:0+i915-unordered00:15:441
35321389944022,418cyclictest0-21swapper/021:52:070
35321389944022,418cyclictest0-21swapper/021:52:070
353218299439433,5cyclictest1802-21snmpd21:33:573
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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