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2026-04-20 - 04:13
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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 Mon Apr 20, 2026 00:44:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
387360123550,8sleep00-21swapper/019:05:200
38748452249183,51sleep10-21swapper/119:08:321
39936132850,4sleep10-21swapper/122:45:541
179699580,4rtkit-daemon1795-21rtkit-daemon00:27:011
179699580,3rtkit-daemon1795-21rtkit-daemon22:13:380
179699560,4rtkit-daemon1795-21rtkit-daemon00:23:401
179699560,3rtkit-daemon1795-21rtkit-daemon21:48:201
179699550,4rtkit-daemon1795-21rtkit-daemon23:44:240
179699550,3rtkit-daemon1795-21rtkit-daemon22:58:331
179699540,4rtkit-daemon1795-21rtkit-daemon20:17:441
179699540,3rtkit-daemon1795-21rtkit-daemon23:44:461
179699520,4rtkit-daemon1795-21rtkit-daemon20:25:051
179699510,3rtkit-daemon1795-21rtkit-daemon21:43:031
179699510,21rtkit-daemon3875170-21cyclictest21:14:511
179699500,3rtkit-daemon1795-21rtkit-daemon22:01:251
179699500,20rtkit-daemon3875170-21cyclictest19:31:311
179699490,3rtkit-daemon1795-21rtkit-daemon20:46:491
179699490,3rtkit-daemon1795-21rtkit-daemon20:11:421
179699490,19rtkit-daemon1795-21rtkit-daemon00:00:401
179699480,3rtkit-daemon0-21swapper/100:06:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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