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2026-05-24 - 14:36
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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 rackdslot0.osadl.org (updated Sun May 24, 2026 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2411099258,2cyclictest5984-21ntpq00:15:192
2410999230,7cyclictest23811-21idleruntime-cro22:00:001
2410899230,22cyclictest0-21swapper/020:28:510
2411099224,2cyclictest7812-21tr21:30:122
24109992218,3cyclictest0-21swapper/100:23:021
24109992211,10cyclictest0-21swapper/121:46:281
24109992118,2cyclictest3991-21H222:10:211
24110992018,1cyclictest28-21ksoftirqd/220:04:362
2410999202,16cyclictest4099-21H222:10:211
2411099193,2cyclictest3981-21H222:10:212
2411099192,16cyclictest22938-21proc_pri21:55:192
24110991917,1cyclictest0-21swapper/219:25:162
24110991916,2cyclictest26030-21grep23:55:142
24110991914,2cyclictest3979-21H222:10:212
2411099190,4cyclictest28928-21awk23:05:012
2411099190,16cyclictest4099-21H222:10:212
2411099190,16cyclictest3983-21H222:10:212
24109991917,1cyclictest21-21ksoftirqd/123:09:571
24109991917,1cyclictest15856-21find23:35:201
24109991916,2cyclictest1938-21nfsd419:25:181
2410999190,4cyclictest3979-21H222:10:211
2410999190,1cyclictest0-21swapper/120:12:101
2410999190,16cyclictest3991-21H222:10:211
2410899193,1cyclictest9-21ksoftirqd/019:34:540
24108991917,1cyclictest9-21ksoftirqd/021:35:570
24108991916,2cyclictest20283-21seq19:59:550
2410899191,2cyclictest4035-21H222:10:210
2410899190,2cyclictest3987-21H222:10:210
2410899190,2cyclictest3979-21H222:10:210
2410899190,16cyclictest4099-21H222:10:210
2410899190,16cyclictest4099-21H222:10:210
2410899190,16cyclictest3991-21H222:10:210
2410899190,16cyclictest3987-21H222:10:210
2410899190,16cyclictest0-21swapper/020:10:110
2411099182,15cyclictest0-21swapper/222:42:032
24110991815,2cyclictest4099-21H222:10:212
24110991815,2cyclictest3979-21H222:10:212
24110991814,3cyclictest3976-21H222:10:212
2411099181,2cyclictest4099-21H222:10:212
2411099181,2cyclictest3985-21H222:10:212
2411099180,3cyclictest3979-21H222:10:212
2411099180,2cyclictest4099-21H222:10:212
2411099180,2cyclictest3991-21H222:10:212
2411099180,2cyclictest3987-21H222:10:212
2411099180,2cyclictest3981-21H222:10:212
2411099180,17cyclictest3983-21H222:10:212
2411099180,17cyclictest3981-21H222:10:212
2411099180,17cyclictest3976-21H222:10:212
2411099180,17cyclictest3053-21systemd-logind22:54:522
2411099180,17cyclictest12423-21postgres00:29:532
2411099180,17cyclictest0-21swapper/220:35:132
2411099180,16cyclictest3979-21H222:10:212
2411099180,16cyclictest3976-21H222:10:212
2411099180,15cyclictest4099-21H222:10:212
2411099180,15cyclictest3979-21H222:10:212
2410999183,1cyclictest8035-21apt23:25:001
2410999182,15cyclictest0-21swapper/122:21:051
24109991816,1cyclictest19777-21timerandwakeup19:55:221
24109991816,1cyclictest0-21swapper/123:14:061
24109991815,2cyclictest27884-21expr23:00:171
24109991814,3cyclictest30618-21awk21:15:001
24109991814,3cyclictest0-21swapper/100:36:481
2410999181,2cyclictest0-21swapper/121:05:191
2410999181,16cyclictest4179-21nfsd423:15:191
2410999181,15cyclictest0-21swapper/121:00:161
2410999180,2cyclictest3989-21H222:10:211
2410999180,2cyclictest3976-21H222:10:211
2410999180,17cyclictest4099-21H222:10:211
2410999180,17cyclictest25650-21cat22:55:231
2410999180,15cyclictest4035-21H222:10:211
2410899183,1cyclictest3989-21H222:10:210
24108991815,2cyclictest4099-21H222:10:210
24108991815,2cyclictest4035-21H222:10:210
24108991815,2cyclictest3991-21H222:10:210
24108991815,2cyclictest2226-21fschecks_time00:10:150
24108991814,3cyclictest4035-21H222:10:210
24108991814,3cyclictest4035-21H222:10:210
24108991814,3cyclictest3981-21H222:10:210
24108991814,2cyclictest3991-21H222:10:210
24108991813,4cyclictest399-20systemd-journal00:01:180
2410899181,2cyclictest1856-21systemd-udevd00:28:510
2410899181,16cyclictest3989-21H222:10:210
2410899181,15cyclictest3991-21H222:10:210
24108991810,7cyclictest870-21systemd-logind20:38:520
2410899180,2cyclictest3985-21H222:10:210
2410899180,17cyclictest870-21systemd-logind21:56:520
2410899180,17cyclictest3991-21H222:10:210
2410899180,17cyclictest3989-21H222:10:210
2410899180,17cyclictest3983-21H222:10:210
2410899180,15cyclictest3981-21H222:10:210
24110991714,2cyclictest4099-21H222:10:212
24110991714,2cyclictest4099-21H222:10:212
24110991714,2cyclictest3981-21H222:10:212
24110991714,2cyclictest3976-21H222:10:212
24110991714,2cyclictest28125-21/usr/sbin/munin00:00:122
24110991714,2cyclictest23323-21memory21:00:162
24110991714,2cyclictest13534-21grep21:40:132
24110991713,3cyclictest3976-21H222:10:212
2411099171,1cyclictest23910-21awk23:50:182
2411099171,1cyclictest18602chrt21:20:062
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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