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2026-04-18 - 00:26
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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 rackcslot4.osadl.org (updated Fri Apr 17, 2026 12:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40578242262220,28sleep10-21swapper/107:06:311
40578772241197,28sleep00-21swapper/007:07:070
179699550,4rtkit-daemon1795-21rtkit-daemon07:22:370
179699540,4rtkit-daemon1795-21rtkit-daemon10:25:390
179699530,4rtkit-daemon1795-21rtkit-daemon11:30:440
179699530,4rtkit-daemon1795-21rtkit-daemon11:06:021
179699510,4rtkit-daemon1795-21rtkit-daemon11:50:541
179699500,4rtkit-daemon1795-21rtkit-daemon09:12:530
179699500,3rtkit-daemon1795-21rtkit-daemon10:55:041
40823172490,1chrt4082318-21/usr/sbin/munin08:05:250
179699480,4rtkit-daemon1795-21rtkit-daemon08:32:300
179699470,3rtkit-daemon1795-21rtkit-daemon09:21:480
602972460,4sleep00-21swapper/012:38:040
179699460,3rtkit-daemon1795-21rtkit-daemon07:33:240
179699450,3rtkit-daemon1795-21rtkit-daemon11:13:490
179699420,5rtkit-daemon4106483-21diskmemload11:19:041
179699420,5rtkit-daemon4106483-21diskmemload11:19:031
405827099409,5cyclictest13-21ksoftirqd/009:35:000
179699380,5rtkit-daemon41575-21unixbench-2d12:10:231
183932370,4sleep10-21swapper/111:39:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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