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2026-04-16 - 23:55
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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 Thu Apr 16, 2026 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8044122267192,44sleep10-21swapper/107:09:281
8043342263190,58sleep00-21swapper/007:08:380
804595995514,11cyclictest852925-21diskmemload12:25:210
8884922520,3sleep00-21swapper/009:59:090
804595995212,10cyclictest899407-21python310:15:000
179699510,4rtkit-daemon1795-21rtkit-daemon09:30:480
179699510,4rtkit-daemon1795-21rtkit-daemon08:42:130
80459599509,10cyclictest872652-21sshd09:35:240
804595995016,10cyclictest852925-21diskmemload11:35:090
804595995012,13cyclictest929225-21sensors_temp10:55:260
804595995012,11cyclictest860334-21apt-get09:21:150
179699500,4rtkit-daemon1795-21rtkit-daemon07:21:510
179699500,4rtkit-daemon1795-21rtkit-daemon07:12:290
179699500,3rtkit-daemon1795-21rtkit-daemon12:06:210
179699500,3rtkit-daemon1795-21rtkit-daemon07:37:440
179699490,4rtkit-daemon1795-21rtkit-daemon12:31:481
179699490,4rtkit-daemon1795-21rtkit-daemon11:07:310
179699490,4rtkit-daemon1795-21rtkit-daemon10:40:020
179699490,4rtkit-daemon1795-21rtkit-daemon08:28:051
9525252480,4sleep10-21swapper/111:29:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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