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2026-05-05 - 08:13
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Data to construct the above plot have been generated using the RT test utility cyclictest.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack4slot1.osadl.org (updated Mon May 04, 2026 19:51:28)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
490824680,2sleep012-21ksoftirqd/019:12:450
490824680,2sleep012-21ksoftirqd/019:12:450
469524200,2sleep227-21ksoftirqd/219:12:432
469524200,2sleep227-21ksoftirqd/219:12:432
1430521050,2sleep10-21swapper/119:37:381
1430521050,2sleep10-21swapper/119:37:381
1430521050,2sleep10-21swapper/119:37:381
143072970,2sleep20-21swapper/219:37:402
143072970,2sleep20-21swapper/219:37:402
143072970,2sleep20-21swapper/219:37:402
119792690,3chrt0-21swapper/019:32:310
119792690,3chrt0-21swapper/019:32:310
118302590,4sleep30-21swapper/319:32:313
118302590,4sleep30-21swapper/319:32:313
4959994318,10cyclictest16268-21grep19:42:370
4959994318,10cyclictest16268-21grep19:42:370
181732380,1chrt12-21ksoftirqd/019:47:380
181732380,1chrt12-21ksoftirqd/019:47:380
123002310,3sleep211429-21/usr/sbin/munin19:32:372
123002310,3sleep211429-21/usr/sbin/munin19:32:372
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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