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2025-11-07 - 13:58
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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 rackdslot0.osadl.org (updated Fri Nov 07, 2025 00:45:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1338099246,15cyclictest0-21swapper/222:57:382
1337999230,19cyclictest0-21swapper/120:30:361
1337999230,18cyclictest0-21swapper/121:45:321
1338099220,6cyclictest0-21swapper/223:42:112
1338099220,18cyclictest0-21swapper/222:12:252
13379992217,2cyclictest4574-21changes_closed00:15:171
13379992217,2cyclictest4574-21changes_closed00:15:171
1337999220,21cyclictest30342-21cpuspeed_turbos21:35:121
1338099203,16cyclictest15239-21grep23:55:202
13380992016,3cyclictest0-21swapper/220:43:022
1338099200,17cyclictest4528-21H212:26:332
1338099192,2cyclictest4593-21H212:26:332
1338099191,17cyclictest0-21swapper/221:50:012
1338099190,2cyclictest4581-21H212:26:332
1338099190,16cyclictest4536-21H212:26:332
1337999193,15cyclictest31355-21cron22:35:001
13379991917,1cyclictest0-21swapper/119:22:281
1337999190,18cyclictest823-21systemd-network20:54:291
1337999190,18cyclictest414-20systemd-journal19:17:011
1337999190,18cyclictest0-21swapper/120:58:471
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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