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2025-11-30 - 12:43
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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 Sun Nov 30, 2025 00:44:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12460262264191,28sleep10-21swapper/119:07:061
12462252256179,28sleep00-21swapper/019:09:130
125899650,7rtkit-daemon1257-21rtkit-daemon21:45:130
125899580,4rtkit-daemon1257-21rtkit-daemon21:38:190
125899540,4rtkit-daemon1257-21rtkit-daemon21:22:341
125899540,4rtkit-daemon1257-21rtkit-daemon00:24:291
125899490,4rtkit-daemon1257-21rtkit-daemon23:30:420
125899470,4rtkit-daemon1257-21rtkit-daemon19:33:321
125899460,4rtkit-daemon1257-21rtkit-daemon20:18:050
125899450,4rtkit-daemon1257-21rtkit-daemon20:05:090
125899440,3rtkit-daemon0-21swapper/022:25:560
125899400,6rtkit-daemon1310424-21fschecks_time21:30:181
125899390,4rtkit-daemon1295141-21diskmemload22:09:480
14227742381,20sleep11422901-21/usr/sbin/munin00:10:181
125899380,4rtkit-daemon1327026-21ssh21:54:110
125899370,5rtkit-daemon1376080-21ssh23:03:540
125899370,5rtkit-daemon1257-21rtkit-daemon23:56:221
125899360,4rtkit-daemon1347125-21ssh22:21:511
125899360,4rtkit-daemon1257-21rtkit-daemon23:39:071
125899360,3rtkit-daemon0-21swapper/123:01:431
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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