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2026-04-11 - 16:17
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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 Apr 11, 2026 12:44:51)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11793632271197,59sleep00-21swapper/007:07:090
11795682259191,54sleep10-21swapper/107:09:211
12627292880,3sleep10-21swapper/109:57:521
13353452670,4sleep11335344-21sensors_temp11:40:231
179699660,4rtkit-daemon1795-21rtkit-daemon07:50:551
179699500,4rtkit-daemon1795-21rtkit-daemon12:27:181
179699500,4rtkit-daemon1795-21rtkit-daemon08:09:431
179699500,3rtkit-daemon1795-21rtkit-daemon12:10:191
179699490,4rtkit-daemon1795-21rtkit-daemon08:34:571
179699480,4rtkit-daemon1795-21rtkit-daemon11:17:461
13343982480,3sleep00-21swapper/011:40:140
1179781994613,10cyclictest26-21ksoftirqd/107:25:001
179699450,3rtkit-daemon1795-21rtkit-daemon08:27:530
179699440,10rtkit-daemon1187115-21ntp_states07:25:220
179699430,3rtkit-daemon1795-21rtkit-daemon08:24:180
179699400,7rtkit-daemon1289962-21kworker/u8:011:10:380
179699390,3rtkit-daemon0-21swapper/111:31:481
179699390,3rtkit-daemon0-21swapper/109:32:371
179699370,3rtkit-daemon0-21swapper/010:08:370
179699360,6rtkit-daemon1224542-21latency09:00:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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