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2026-04-20 - 21:30
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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
Characteristics of the 100 highest latencies:
System rack6slot0.osadl.org (updated Mon Apr 20, 2026 13:02:29)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
921399198192,4cyclictest0-21swapper/2009:55:5413
921399198192,4cyclictest0-21swapper/2009:55:5413
921399197189,5cyclictest14828-21sshd10:00:4113
921399197189,5cyclictest14828-21sshd10:00:4113
921399197189,5cyclictest14828-21sshd10:00:4113
923099193186,5cyclictest0-21swapper/3410:55:3028
923099193186,5cyclictest0-21swapper/3410:55:3028
923099191184,4cyclictest0-21swapper/3407:37:0128
923099191184,4cyclictest0-21swapper/3407:37:0128
921399191185,4cyclictest0-21swapper/2008:09:4513
921399191185,4cyclictest0-21swapper/2008:09:4513
921399191145,25cyclictest0-21swapper/2011:11:3913
921399191145,25cyclictest0-21swapper/2011:11:3913
921399191145,25cyclictest0-21swapper/2011:11:3913
921399189183,4cyclictest0-21swapper/2009:23:3713
921399189183,4cyclictest0-21swapper/2009:23:3713
921399189181,5cyclictest1392-21gdbus09:48:3513
921399189181,5cyclictest1392-21gdbus09:48:3513
921399189181,5cyclictest1392-21gdbus09:48:3513
922599188179,7cyclictest0-21swapper/2908:05:0022
922599188179,7cyclictest0-21swapper/2908:05:0022
921399188180,6cyclictest0-21swapper/2010:08:4813
921399188180,6cyclictest0-21swapper/2010:08:4713
921399187182,4cyclictest0-21swapper/2011:08:2013
921399187182,4cyclictest0-21swapper/2011:08:2013
921399186178,5cyclictest0-21swapper/2011:17:2313
921399186178,5cyclictest0-21swapper/2011:17:2313
921399183178,3cyclictest0-21swapper/2009:13:5013
921399183178,3cyclictest0-21swapper/2009:13:5013
921399183178,3cyclictest0-21swapper/2009:13:5013
923399182179,2cyclictest0-21swapper/3712:36:5931
923399182179,2cyclictest0-21swapper/3712:36:5931
921399182176,3cyclictest2461-21CPU13
921399182176,3cyclictest2461-21CPU13
921399182174,5cyclictest0-21swapper/2008:51:1513
921399182174,5cyclictest0-21swapper/2008:51:1513
920299182171,7cyclictest37353-21CPU2
920299182171,7cyclictest37353-21CPU2
921399181174,5cyclictest0-21swapper/2011:37:1713
921399181174,5cyclictest0-21swapper/2011:37:1713
921399181173,6cyclictest0-21swapper/2009:50:5113
921399181173,6cyclictest0-21swapper/2009:50:5113
921399181173,6cyclictest0-21swapper/2009:50:5113
921399181170,9cyclictest0-21swapper/2008:05:0113
921399181170,9cyclictest0-21swapper/2008:05:0113
921399180172,6cyclictest0-21swapper/2007:57:4513
921399180172,6cyclictest0-21swapper/2007:57:4513
922699179169,7cyclictest0-21swapper/3011:17:4324
922699179169,7cyclictest0-21swapper/3011:17:4324
921399179172,5cyclictest37257-21qemu-system-x8608:18:3913
921399179172,5cyclictest37257-21qemu-system-x8608:18:3913
923399178170,6cyclictest0-21swapper/3712:04:1931
923399178170,6cyclictest0-21swapper/3712:04:1931
921399178171,4cyclictest0-21swapper/2009:43:4413
921399178171,4cyclictest0-21swapper/2009:43:4413
920699178125,37cyclictest0-21swapper/1409:56:466
920699178125,37cyclictest0-21swapper/1409:56:466
921399177173,3cyclictest0-21swapper/2009:31:2313
921399177173,3cyclictest0-21swapper/2009:31:2313
923399176170,4cyclictest0-21swapper/3708:35:0531
921399176169,5cyclictest0-21swapper/2009:16:1713
921399176169,5cyclictest0-21swapper/2009:16:1613
921399176159,13cyclictest0-21swapper/2011:41:3913
921399176159,13cyclictest0-21swapper/2011:41:3813
921399176143,24cyclictest0-21swapper/2011:34:5513
921399176143,24cyclictest0-21swapper/2011:34:5513
921399176143,24cyclictest0-21swapper/2011:34:5513
921399176130,20cyclictest0-21swapper/2012:29:1613
921399176130,20cyclictest0-21swapper/2012:29:1613
921399175170,3cyclictest0-21swapper/2007:45:4513
921399175163,9cyclictest0-21swapper/2008:15:0113
921399175163,9cyclictest0-21swapper/2008:15:0113
920299175170,4cyclictest0-21swapper/1012:17:292
920299175170,4cyclictest0-21swapper/1012:17:292
920299175170,4cyclictest0-21swapper/1012:17:292
920299175167,5cyclictest2466-21CPU2
920299175167,5cyclictest2466-21CPU2
923399174168,4cyclictest0-21swapper/3712:06:1931
923399174168,4cyclictest0-21swapper/3712:06:1931
923399174163,6cyclictest0-21swapper/3711:04:5131
923399174163,6cyclictest0-21swapper/3711:04:5131
922599174154,16cyclictest10586-2110-uname12:30:2022
922599174154,16cyclictest10586-2110-uname12:30:1922
921399174168,4cyclictest0-21swapper/2008:38:2713
921399174168,4cyclictest0-21swapper/2008:38:2713
922599173160,10cyclictest0-21swapper/2910:05:5422
922599173160,10cyclictest0-21swapper/2910:05:5422
921399173117,18cyclictest0-21swapper/2011:27:1013
921399173117,18cyclictest0-21swapper/2011:27:1013
921399173117,18cyclictest0-21swapper/2011:27:1013
921399172164,4cyclictest3610-21CPU13
921399172164,4cyclictest3610-21CPU13
921399172164,4cyclictest3610-21CPU13
92259917192,73cyclictest3610-21CPU22
92259917192,73cyclictest3610-21CPU22
922599171162,7cyclictest0-21swapper/2912:00:5422
922599171162,7cyclictest0-21swapper/2912:00:5422
920299171160,8cyclictest0-21swapper/1010:28:052
920299171160,8cyclictest0-21swapper/1010:28:052
920299171160,8cyclictest0-21swapper/1010:28:052
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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