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2025-12-01 - 01:12
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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 100 highest latencies:
System rackdslot0.osadl.org (updated Sun Nov 30, 2025 12:46:00)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5343992516,9cyclictest0-21swapper/210:15:562
5343992516,9cyclictest0-21swapper/210:15:562
5338992415,5cyclictest29939-21cpuspeed_turbos08:50:141
533799230,5cyclictest0-21swapper/011:45:010
5337992214,4cyclictest0-21swapper/007:44:180
5338992120,1cyclictest21-21ksoftirqd/111:14:251
5338992112,5cyclictest0-21swapper/111:15:201
533899210,4cyclictest0-21swapper/107:27:371
5343992017,2cyclictest4523-21H212:26:332
5343992015,4cyclictest7023-21cstates09:05:142
533799204,1cyclictest0-21swapper/011:07:300
5337992014,4cyclictest18316-21munin-plugin-st08:30:010
5343991917,1cyclictest0-21swapper/211:20:152
534399190,3cyclictest4528-21H212:26:332
534399190,18cyclictest0-21swapper/209:55:162
534399190,18cyclictest0-21swapper/207:12:412
534399190,16cyclictest4534-21H212:26:332
534399190,16cyclictest4534-21H212:26:332
5338991916,2cyclictest22639-21date12:25:001
5338991916,2cyclictest18195-21nfsd407:30:201
5338991914,2cyclictest4534-21H212:26:331
533899190,16cyclictest4593-21H212:26:331
533899190,16cyclictest4581-21H212:26:331
533899190,16cyclictest4581-21H212:26:331
533899190,16cyclictest4534-21H212:26:331
533899190,16cyclictest4530-21H212:26:331
533899190,16cyclictest4523-21H212:26:331
533799194,1cyclictest0-21swapper/009:45:360
533799193,1cyclictest0-21swapper/010:15:320
533799193,1cyclictest0-21swapper/010:15:320
5337991917,1cyclictest0-21swapper/011:00:490
533799190,1cyclictest0-21swapper/011:45:260
533799190,16cyclictest4523-21H212:26:330
534399182,1cyclictest3732chrt09:50:152
534399182,15cyclictest4534-21H212:26:332
534399182,15cyclictest28-21ksoftirqd/207:36:012
5343991816,1cyclictest28-21ksoftirqd/209:27:392
5343991816,1cyclictest15825-21fschecks_time09:20:142
5343991815,2cyclictest4534-21H212:26:332
5343991814,3cyclictest4534-21H212:26:332
5343991813,3cyclictest18270-21nfsd407:30:192
534399180,3cyclictest2339-21awk10:50:202
534399180,2cyclictest4530-21H212:26:332
534399180,17cyclictest4526-21H212:26:332
534399180,16cyclictest4534-21H212:26:332
534399180,16cyclictest4528-21H212:26:332
534399180,15cyclictest4534-21H212:26:332
533899182,15cyclictest0-21swapper/110:32:311
5338991817,1cyclictest0-21swapper/108:55:241
5338991815,2cyclictest4593-21H212:26:331
5338991814,3cyclictest0-21swapper/111:45:161
5338991814,1cyclictest0-21swapper/108:41:541
533899180,3cyclictest0-21swapper/107:50:201
533899180,2cyclictest4581-21H212:26:331
533899180,2cyclictest4534-21H212:26:331
533899180,2cyclictest4532-21H212:26:331
533899180,17cyclictest4523-21H212:26:331
533899180,16cyclictest0-21swapper/112:10:001
533899180,15cyclictest4530-21H212:26:331
533899180,15cyclictest0-21swapper/108:45:191
533799183,1cyclictest9-21ksoftirqd/008:36:380
533799182,15cyclictest5872-21timerandwakeup10:55:220
5337991816,1cyclictest9-21ksoftirqd/010:05:030
5337991816,1cyclictest0-21swapper/011:21:070
5337991816,1cyclictest0-21swapper/010:02:350
5337991816,1cyclictest0-21swapper/009:44:480
5337991815,2cyclictest4532-21H212:26:330
5337991814,3cyclictest3707-21lxd11:38:490
5337991814,3cyclictest3707-21lxd11:38:490
533799181,2cyclictest4530-21H212:26:330
533799181,16cyclictest6590-21sort09:05:030
533799181,16cyclictest18558-21cat10:20:240
5337991810,4cyclictest0-21swapper/009:28:550
5337991810,4cyclictest0-21swapper/009:05:010
533799180,3cyclictest4530-21H212:26:330
533799180,3cyclictest3350-21master11:56:110
533799180,2cyclictest4532-21H212:26:330
533799180,2cyclictest4528-21H212:26:330
533799180,1cyclictest0-21swapper/009:14:440
533799180,1cyclictest0-21swapper/008:34:560
533799180,1cyclictest0-21swapper/008:34:560
533799180,17cyclictest0-21swapper/007:45:140
533799180,15cyclictest4532-21H212:26:330
534399172,1cyclictest0-21swapper/212:25:212
534399172,1cyclictest0-21swapper/208:47:012
534399172,15cyclictest28-21ksoftirqd/208:28:562
534399172,14cyclictest0-21swapper/208:20:582
5343991715,1cyclictest0-21swapper/212:00:152
5343991715,1cyclictest0-21swapper/208:32:022
5343991715,1cyclictest0-21swapper/208:32:022
5343991714,2cyclictest4593-21H212:26:332
5343991714,2cyclictest4526-21H212:26:332
5343991714,2cyclictest2049-21systemd-journal10:20:482
5343991714,2cyclictest20178-21cpuspeed_turbos12:20:132
5343991714,2cyclictest12488-21nfsd410:10:192
5343991714,2cyclictest11570-21/usr/sbin/munin12:05:122
5343991713,3cyclictest15166-21grep12:10:162
534399171,1cyclictest0-21swapper/210:25:142
534399171,15cyclictest4534-21H212:26:332
534399170,2cyclictest5405-21grep10:55:182
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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