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2025-11-18 - 07:06
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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 rack1slot1.osadl.org (updated Tue Nov 18, 2025 00:45:06)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
163472210157,27sleep00-21swapper/019:08:090
162892209173,24sleep30-21swapper/319:07:283
163272204164,26sleep20-21swapper/219:07:562
164362199160,26sleep10-21swapper/119:09:191
72462650,1sleep27243-21apt-get22:35:132
272212560,0sleep10-21swapper/120:35:241
132642220,0sleep10-21swapper/121:56:151
11672190,0sleep00-21swapper/023:55:580
298682150,1sleep028497-21/usr/sbin/munin23:05:230
101942150,0sleep20-21swapper/223:25:082
101942150,0sleep20-21swapper/223:25:072
52442130,0sleep30-21swapper/323:16:273
1658599120,9cyclictest0-21swapper/223:55:162
1658599119,1cyclictest21928-21grep22:55:162
1658599110,10cyclictest0-21swapper/222:15:462
1658099112,8cyclictest0-21swapper/021:40:150
1658099110,7cyclictest12977-21ssh22:41:430
234712100,0sleep30-21swapper/321:25:383
165859999,0cyclictest0-21swapper/223:16:142
165859998,1cyclictest28-21ksoftirqd/221:14:382
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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