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2026-08-05 - 13:23
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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 rackdslot3.osadl.org (updated Wed Aug 05, 2026 00:45:42)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
290232234170,52sleep20-21swapper/219:08:062
290292205172,22sleep30-21swapper/319:08:113
288832205172,22sleep10-21swapper/119:06:161
288822205172,22sleep00-21swapper/019:06:150
29465997437,2cyclictest41-21ksoftirqd/321:10:253
29465996435,6cyclictest41-21ksoftirqd/321:35:273
104272620,5sleep110429-21mailstats19:35:241
108822590,4sleep110884-21grep00:05:311
29465995828,3cyclictest41-21ksoftirqd/323:25:223
29465995728,7cyclictest41-21ksoftirqd/323:40:143
29465995629,3cyclictest41-21ksoftirqd/320:30:203
29465995628,4cyclictest41-21ksoftirqd/323:00:283
29465995626,4cyclictest41-21ksoftirqd/319:20:223
29465995625,3cyclictest41-21ksoftirqd/323:30:193
29465995528,7cyclictest41-21ksoftirqd/300:40:013
29465995524,3cyclictest41-21ksoftirqd/322:15:003
324902540,2sleep20-21swapper/223:45:182
29465995428,6cyclictest41-21ksoftirqd/321:25:213
29465995426,7cyclictest41-21ksoftirqd/320:05:163
210202540,2sleep20-21swapper/221:05:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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