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2025-11-29 - 05:35
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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 Sat Nov 29, 2025 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
22577952269187,28sleep00-21swapper/019:06:150
22577902264182,19sleep10-21swapper/119:06:121
125899650,3rtkit-daemon1257-21rtkit-daemon00:05:221
23281432620,4sleep12328135-21cron21:40:011
125899620,5rtkit-daemon2391909-21ntp_states23:10:231
125899590,4rtkit-daemon1257-21rtkit-daemon23:01:360
125899570,5rtkit-daemon1257-21rtkit-daemon22:39:231
22818992560,4sleep0161rcuc/020:05:220
125899560,4rtkit-daemon1257-21rtkit-daemon22:55:421
125899550,4rtkit-daemon1257-21rtkit-daemon23:59:511
125899540,3rtkit-daemon1257-21rtkit-daemon23:20:241
125899520,4rtkit-daemon1257-21rtkit-daemon23:46:311
125899510,4rtkit-daemon1257-21rtkit-daemon20:25:331
125899510,19rtkit-daemon1257-21rtkit-daemon23:06:181
24391152500,4sleep00-21swapper/000:19:070
23649762500,7sleep0161rcuc/022:31:150
125899500,3rtkit-daemon1257-21rtkit-daemon19:19:301
125899500,3rtkit-daemon0-21swapper/019:21:201
125899500,19rtkit-daemon0-21swapper/022:23:371
125899500,19rtkit-daemon0-21swapper/022:23:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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