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2025-12-31 - 03:30
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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 rackeslot2.osadl.org (updated Wed Dec 31, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
374198621110,2sleep01288-1atopacctd22:43:180
348135421010,1sleep00-21swapper/019:53:220
35258632920,1sleep10-21swapper/120:28:211
37962532830,2sleep20-21swapper/223:13:182
36793602340,2sleep20-21swapper/222:08:212
3428290992623,2cyclictest3829261-21grep23:30:020
3428291992522,2cyclictest3774783-21munin-plugin-st23:00:001
342829099249,2cyclictest0-21swapper/023:10:010
3428290992414,6cyclictest3840815-21/usr/sbin/munin23:38:270
342829099239,5cyclictest3831549-21/usr/sbin/munin23:33:270
342829099238,5cyclictest3669365-21cstates22:03:160
3428290992320,2cyclictest3920210-21perf00:20:000
3428290992318,1cyclictest36848361systemd-run22:10:010
3428290992311,5cyclictest3645600-21kthreadcore21:48:230
3428290992310,5cyclictest3774754-21latency_hist23:00:010
3428291992218,3cyclictest3893487-21grep00:05:021
3428291992216,2cyclictest134050irq/121-eno100:15:011
3428291992215,1cyclictest134050irq/121-eno100:23:211
3428290992213,5cyclictest3687402-21cstates22:13:180
342829099221,1cyclictest3605865-21apt-get21:28:140
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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