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2026-06-04 - 09:33
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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 Thu Jun 04, 2026 00:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
104292201161,26sleep20-21swapper/219:07:102
105092199162,24sleep00-21swapper/019:08:110
104202199159,26sleep30-21swapper/319:07:033
106022198160,25sleep10-21swapper/119:09:261
3073021140,1sleep21074999cyclictest20:10:142
275462640,1sleep30-21swapper/322:10:143
146532600,0sleep30-21swapper/319:20:013
10734991411,1cyclictest9-21ksoftirqd/022:20:000
1074999130,1cyclictest0-21swapper/221:35:192
10734991311,1cyclictest9-21ksoftirqd/020:50:000
1075899126,3cyclictest1029-21snmpd23:20:043
10749991211,1cyclictest28-21ksoftirqd/200:18:442
10749991210,1cyclictest18269-21fschecks_time19:30:102
10749991110,1cyclictest28-21ksoftirqd/221:00:002
1074999110,10cyclictest865-21cut23:45:122
1073499119,1cyclictest9-21ksoftirqd/023:30:150
1073499114,6cyclictest13135-21munin-node19:15:000
10734991110,1cyclictest9-21ksoftirqd/023:10:140
261882100,0sleep015033-21diskmemload22:08:110
179922100,0sleep10-21swapper/121:55:551
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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