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2026-05-25 - 03:15
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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 50 highest latencies:
System rackdslot0.osadl.org (updated Sun May 24, 2026 12:46:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5755992625,0cyclictest0-21swapper/009:30:150
5755992323,0cyclictest0-21swapper/010:20:130
575799221,13cyclictest0-21swapper/209:05:172
575799210,17cyclictest0-21swapper/210:30:402
5756992114,3cyclictest0-21swapper/111:06:031
575699210,20cyclictest843-21systemd-network07:31:111
575599210,20cyclictest0-21swapper/008:32:320
575799205,10cyclictest3450-21gsd-color09:40:012
575799204,9cyclictest0-21swapper/209:10:172
575799204,15cyclictest0-21swapper/209:57:242
575699200,2cyclictest31036-21df10:45:151
575699200,19cyclictest843-21systemd-network08:32:021
575699200,18cyclictest870-21systemd-logind07:46:521
575599202,17cyclictest0-21swapper/008:30:010
5755992017,2cyclictest3987-21H222:10:210
5755992016,3cyclictest0-21swapper/012:30:000
575599200,17cyclictest0-21swapper/011:35:130
575799190,18cyclictest3983-21H222:10:212
575799190,16cyclictest4099-21H222:10:212
575799190,16cyclictest3989-21H222:10:212
575799190,16cyclictest3989-21H222:10:212
575799190,16cyclictest3983-21H222:10:212
575699193,15cyclictest8093-21cron10:05:001
575699192,16cyclictest28455-21timerwakeupswit09:40:221
575699192,16cyclictest28455-21timerwakeupswit09:40:211
5756991917,1cyclictest0-21swapper/112:20:341
5756991914,3cyclictest0-21swapper/109:59:151
5756991913,5cyclictest2332-21fschecks_time08:00:161
575699190,2cyclictest3981-21H222:10:211
575699190,17cyclictest32231-21grep09:50:131
575699190,16cyclictest4099-21H222:10:211
575699190,16cyclictest4035-21H222:10:211
575699190,16cyclictest3987-21H222:10:211
575699190,16cyclictest3979-21H222:10:211
5755991917,1cyclictest0-21swapper/009:55:150
5755991914,2cyclictest3989-21H222:10:210
5755991913,2cyclictest19731-21latency_hist07:35:010
575599191,15cyclictest0-21swapper/007:15:020
575599191,12cyclictest0-21swapper/012:10:200
575599190,18cyclictest3991-21H222:10:210
575599190,18cyclictest0-21swapper/009:38:160
575599190,16cyclictest3983-21H222:10:210
575599190,16cyclictest3983-21H222:10:210
575799182,15cyclictest28-21ksoftirqd/209:33:112
575799182,15cyclictest0-21swapper/207:26:282
5757991815,2cyclictest28233-21sessionclean11:39:002
5757991815,2cyclictest12115-21chrt11:10:012
5757991814,3cyclictest3983-21H222:10:212
5757991814,2cyclictest3989-21H222:10:212
5757991813,3cyclictest32678-21proc_pri07:55:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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