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2026-09-28 - 02:29
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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 20 highest latencies:
System rack3slot0.osadl.org (updated Mon Sep 28, 2026 00:43:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
33072690,1sleep23294-21bash21:32:332
234192560,0sleep60-21swapper/622:37:336
161852530,2sleep73062599cyclictest22:07:067
290622510,1sleep629060-21grep22:04:096
115972510,1sleep3721-21dbus-daemon00:27:433
115972510,1sleep3721-21dbus-daemon00:27:433
315562490,0sleep60-21swapper/623:45:336
3026624925,9sleep00-21swapper/019:01:300
3016524922,9sleep30-21swapper/319:00:133
274962490,1sleep627498-21unixbench-2d22:24:276
268592490,1sleep426857-21sshd22:07:434
62242480,0sleep50-21swapper/522:08:245
312522480,0sleep50-21swapper/523:19:135
260512480,2sleep13060399cyclictest23:41:271
74582470,0sleep10-21swapper/121:44:101
222252470,0sleep1758-21runrttasks00:24:281
222252470,0sleep1758-21runrttasks00:24:281
218482470,0sleep10-21swapper/122:56:101
133212470,0sleep1241ktimersoftd/121:16:141
186062460,0sleep40-21swapper/423:07:104
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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