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2026-04-18 - 06:49
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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
Characteristics of the 100 highest latencies:
System rackeslot2.osadl.org (updated Sat Apr 18, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8998742910,1sleep10-21swapper/121:45:531
6928892820,2sleep1692893-21grep19:10:511
9948272680,1sleep1994826-21ssh22:49:541
7154832670,1sleep00-21swapper/019:25:530
9816412540,1sleep00-21swapper/022:40:510
10863202500,2sleep30-21swapper/323:50:493
9409272420,1sleep10-21swapper/122:12:061
691654992422,1cyclictest0-21swapper/019:50:000
691654992219,2cyclictest979772-21idleruntime-cro22:40:000
691654992212,6cyclictest0-21swapper/000:38:450
9421192210,2sleep30-21swapper/322:15:013
691656992119,1cyclictest0-21swapper/221:30:012
691656992118,1cyclictest0-21swapper/219:40:002
691655992117,2cyclictest134050irq/121-eno100:00:011
691654992118,2cyclictest1122917-21cron00:15:000
691656992018,1cyclictest0-21swapper/221:50:012
691656992014,1cyclictest0-21swapper/220:49:592
691655992016,3cyclictest1-21systemd22:40:011
691655992016,2cyclictest383433398rtkit-daemon22:25:461
69165499204,3cyclictest0-21swapper/022:25:530
691654992014,4cyclictest1-21systemd20:40:020
691654992011,5cyclictest1003736-21idleruntime22:55:510
691654992010,5cyclictest0-21swapper/023:25:020
691654992010,5cyclictest0-21swapper/000:34:460
691656991917,1cyclictest0-21swapper/200:15:012
691656991916,1cyclictest0-21swapper/220:20:002
691656991915,2cyclictest0-21swapper/222:30:012
691655991916,2cyclictest0-21swapper/119:50:001
691655991915,3cyclictest917472-21head21:55:551
691655991914,4cyclictest3824565-21in:imuxsock20:00:011
691655991913,4cyclictest1-21systemd20:50:001
691655991911,3cyclictest1996-21runrttasks22:04:561
69165499199,5cyclictest0-21swapper/021:41:360
691654991916,2cyclictest1130465-21munin-run00:20:000
691654991911,4cyclictest813440-21tail20:45:460
691654991910,5cyclictest0-21swapper/023:43:550
2649091190,3phc2sys0-21swapper/323:10:453
691656991816,1cyclictest0-21swapper/223:05:012
691656991815,1cyclictest0-21swapper/223:05:502
691655991815,2cyclictest932819-21timerandwakeup22:05:591
691655991815,1cyclictest134050irq/121-eno123:10:521
691655991814,3cyclictest720611-21kthreadcore19:30:521
691655991810,2cyclictest0-21swapper/122:15:451
69165499189,5cyclictest0-21swapper/022:00:020
69165499183,3cyclictest3851703-21mta-sts-daemon19:57:390
691654991815,2cyclictest940175-21mailstats22:10:570
691654991815,2cyclictest825694-21latency_hist20:55:010
691654991815,2cyclictest706693-21systemd-run19:20:010
691654991815,2cyclictest706693-21systemd-run19:20:010
691654991815,2cyclictest691766-21systemd-run19:10:010
691654991811,2cyclictest0-21swapper/023:35:010
691656991715,1cyclictest0-21swapper/221:10:002
691656991715,1cyclictest0-21swapper/219:25:012
691656991715,1cyclictest0-21swapper/200:40:022
691656991714,1cyclictest0-21swapper/223:40:012
691656991714,1cyclictest0-21swapper/223:15:462
691656991714,1cyclictest0-21swapper/222:50:592
691656991714,1cyclictest0-21swapper/221:55:022
691656991714,1cyclictest0-21swapper/221:25:022
691656991714,1cyclictest0-21swapper/219:15:012
691656991714,1cyclictest0-21swapper/200:30:502
691655991714,2cyclictest996748-21kernelversion22:50:521
691655991714,2cyclictest911986-21gdbus21:55:011
691655991714,2cyclictest1145502-21cut00:30:011
691655991714,2cyclictest1079605-21kthreadcore23:45:521
691655991714,2cyclictest1040543-21apt-get23:20:441
691655991714,2cyclictest1017729-21grep23:05:021
691655991713,3cyclictest1138129-21/usr/sbin/munin00:25:011
691655991713,2cyclictest0-21swapper/121:10:011
691655991711,4cyclictest0-21swapper/100:15:541
691655991711,2cyclictest134050irq/121-eno100:30:591
69165599170,1cyclictest0-21swapper/120:23:411
69165499178,5cyclictest0-21swapper/023:36:230
69165499178,5cyclictest0-21swapper/000:05:460
69165499177,6cyclictest0-21swapper/020:30:550
69165499176,6cyclictest0-21swapper/021:35:010
691654991715,1cyclictest859161-21latency_hist21:20:000
691654991714,2cyclictest1296-21polkitd23:05:010
691654991714,2cyclictest0-21swapper/019:15:010
691654991713,1cyclictest0-21swapper/020:55:550
2649091171,4phc2sys0-21swapper/323:25:453
2649091170,2phc2sys0-21swapper/322:54:183
691656991614,1cyclictest0-21swapper/223:30:472
691656991614,1cyclictest0-21swapper/222:00:012
691656991614,1cyclictest0-21swapper/220:25:022
691656991614,1cyclictest0-21swapper/200:01:452
691656991613,1cyclictest0-21swapper/223:55:542
691656991613,1cyclictest0-21swapper/222:56:002
691656991613,1cyclictest0-21swapper/221:10:592
691656991613,1cyclictest0-21swapper/220:50:572
691656991612,2cyclictest0-21swapper/223:25:472
691656991612,2cyclictest0-21swapper/221:41:262
69165599168,4cyclictest1023321-21ssh23:05:591
691655991614,1cyclictest0-21swapper/100:05:021
691655991613,2cyclictest981508-21cut22:40:511
691655991613,2cyclictest881627-21cron21:35:001
691655991613,2cyclictest703420-21kthreadcore19:15:541
691655991613,2cyclictest703420-21kthreadcore19:15:541
691655991613,2cyclictest697955-21munin-node21:26:561
691655991613,2cyclictest1063320-21tr23:35:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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