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2026-09-02 - 19:31
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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 Wed Sep 02, 2026 12:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2383899274,18cyclictest11782-21latency_hist09:40:010
2383899274,18cyclictest11782-21latency_hist09:40:000
2383899248,1cyclictest9-21ksoftirqd/009:25:400
2384099230,5cyclictest0-21swapper/108:52:431
2383899235,17cyclictest9-21ksoftirqd/008:20:010
23838992322,1cyclictest11284-21mii-tool11:30:150
2383899224,17cyclictest0-21swapper/010:34:540
23844992012,4cyclictest0-21swapper/208:43:392
23840992018,1cyclictest26985-21munin-plugin-st09:10:011
2384099200,19cyclictest0-21swapper/107:30:281
23838992012,3cyclictest0-21swapper/011:28:120
2384499193,1cyclictest28-21ksoftirqd/210:07:032
2384499193,15cyclictest28-21ksoftirqd/211:40:112
23844991917,1cyclictest28-21ksoftirqd/211:45:112
23844991917,1cyclictest28-21ksoftirqd/211:45:102
2384499190,3cyclictest0-21swapper/207:38:192
2384499190,2cyclictest3976-21H222:10:212
2384499190,18cyclictest3976-21H222:10:212
2384499190,16cyclictest3991-21H222:10:212
2384499190,16cyclictest3991-21H222:10:212
2384499190,16cyclictest3991-21H222:10:212
2384099193,2cyclictest3979-21H222:10:211
2384099193,15cyclictest21-21ksoftirqd/110:33:121
2384099192,16cyclictest0-21swapper/111:10:181
23840991918,1cyclictest21-21ksoftirqd/107:44:351
23840991917,1cyclictest28784-21ls12:00:201
2384099190,18cyclictest3467-21gsd-power11:36:341
2384099190,16cyclictest3991-21H222:10:211
2384099190,16cyclictest3991-21H222:10:211
2384099190,16cyclictest3989-21H222:10:211
2384099190,16cyclictest3985-21H222:10:211
23838991916,1cyclictest0-21swapper/011:22:180
23838991915,0cyclictest0-21swapper/012:27:460
23838991912,2cyclictest4141-21fschecks_count07:30:150
2383899190,4cyclictest399-20systemd-journal09:44:560
2384499182,15cyclictest0-21swapper/208:34:022
23844991815,2cyclictest3987-21H222:10:212
23844991814,3cyclictest3983-21H222:10:212
23844991814,3cyclictest3983-21H222:10:212
23844991814,3cyclictest32499-21nfsd408:20:192
2384499180,3cyclictest4035-21H222:10:212
2384499180,2cyclictest4035-21H222:10:212
2384499180,2cyclictest4035-21H222:10:212
2384499180,2cyclictest3989-21H222:10:212
2384499180,2cyclictest3989-21H222:10:212
2384499180,2cyclictest3983-21H222:10:212
2384499180,2cyclictest3979-21H222:10:212
2384499180,17cyclictest3987-21H222:10:212
2384499180,17cyclictest3983-21H222:10:212
2384499180,17cyclictest3979-21H222:10:212
2384499180,17cyclictest0-21swapper/211:59:132
2384499180,16cyclictest3976-21H222:10:212
2384499180,15cyclictest3989-21H222:10:212
2384499180,15cyclictest3979-21H222:10:212
23840991816,1cyclictest21-21ksoftirqd/111:21:131
23840991816,1cyclictest0-21swapper/108:06:011
23840991815,2cyclictest3433-21nfsd408:25:201
23840991815,2cyclictest31251-21nfsd407:20:191
23840991814,3cyclictest3991-21H222:10:211
23840991814,3cyclictest3981-21H222:10:211
23840991814,2cyclictest3991-21H222:10:211
2384099180,3cyclictest30388-21bounce11:08:161
2384099180,3cyclictest1521-21lxd07:10:421
2384099180,2cyclictest4099-21H222:10:211
2384099180,2cyclictest3989-21H222:10:211
2384099180,2cyclictest3985-21H222:10:211
2384099180,2cyclictest3985-21H222:10:211
2384099180,2cyclictest3979-21H222:10:211
2384099180,17cyclictest3987-21H222:10:211
2384099180,15cyclictest4099-21H222:10:211
2383899183,1cyclictest0-21swapper/009:51:520
2383899183,15cyclictest9-21ksoftirqd/008:51:380
2383899182,15cyclictest9-21ksoftirqd/010:49:430
2383899182,15cyclictest0-21swapper/008:31:120
23838991815,2cyclictest455-21plymouthd10:25:140
23838991815,2cyclictest3979-21H222:10:210
23838991814,3cyclictest16863-21sshd07:54:290
23838991814,2cyclictest3987-21H222:10:210
23838991814,2cyclictest364-21sed12:10:000
23838991814,1cyclictest111rcu_preempt08:42:110
2383899180,3cyclictest3985-21H222:10:210
2383899180,2cyclictest3991-21H222:10:210
2383899180,2cyclictest3981-21H222:10:210
2383899180,2cyclictest3981-21H222:10:210
2383899180,2cyclictest3981-21H222:10:210
2383899180,2cyclictest3981-21H222:10:210
2383899180,2cyclictest3976-21H222:10:210
2383899180,2cyclictest3976-21H222:10:210
2383899180,17cyclictest1829-21systemd-journal10:55:010
2383899180,16cyclictest4099-21H222:10:210
2383899180,15cyclictest4099-21H222:10:210
2383899180,15cyclictest4035-21H222:10:210
2383899180,15cyclictest3989-21H222:10:210
2383899180,15cyclictest3989-21H222:10:210
2384499172,1cyclictest0-21swapper/209:45:152
23844991715,1cyclictest4099-21H222:10:212
23844991715,1cyclictest0-21swapper/212:35:252
23844991715,1cyclictest0-21swapper/209:35:202
23844991715,1cyclictest0-21swapper/209:35:192
23844991715,1cyclictest0-21swapper/207:55:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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