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2026-04-29 - 09:36
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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 Wed Apr 29, 2026 00:45:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
136199239,13cyclictest0-21swapper/121:23:581
136199230,5cyclictest0-21swapper/122:41:101
136799217,13cyclictest0-21swapper/219:23:432
136199213,17cyclictest0-21swapper/121:18:141
136199210,3cyclictest0-21swapper/123:27:401
1357992115,3cyclictest0-21swapper/023:48:500
135799210,3cyclictest0-21swapper/021:47:430
135799210,20cyclictest0-21swapper/023:57:350
136199205,0cyclictest0-21swapper/123:35:191
136199201,13cyclictest0-21swapper/122:49:071
1367991915,2cyclictest29655-21nfsd423:40:202
1367991915,2cyclictest29655-21nfsd423:40:192
136799190,18cyclictest843-21systemd-network00:23:462
136799190,16cyclictest3979-21H222:10:212
1361991917,1cyclictest17314-21cat19:30:151
1361991917,1cyclictest0-21swapper/123:12:351
1361991917,1cyclictest0-21swapper/120:36:481
1361991916,2cyclictest0-21swapper/119:20:161
136199190,3cyclictest0-21swapper/123:30:201
135799192,2cyclictest1666-21cpuspeed_turbos20:00:140
1357991916,2cyclictest14550-21snapd20:45:100
1357991914,3cyclictest14550-21snapd20:40:490
135799190,18cyclictest0-21swapper/022:06:580
135799190,16cyclictest4099-21H222:10:210
136799182,15cyclictest291562chrt22:41:332
1367991816,1cyclictest0-21swapper/200:36:332
1367991815,2cyclictest5747-21nfsd423:55:172
1367991815,2cyclictest3976-21H222:10:212
1367991815,2cyclictest2967-21cut19:10:202
1367991815,2cyclictest11572-21processes22:10:192
1367991814,3cyclictest0-21swapper/222:05:152
136799181,16cyclictest8899-21cpuspeed_turbos23:05:132
136799181,16cyclictest18604-21nvmesmart_nvme021:25:202
136799181,16cyclictest13902-21tr19:25:142
136799180,17cyclictest2007-21systemd-journal21:41:442
136799180,17cyclictest15123-21smtp22:19:492
136799180,16cyclictest3983-21H222:10:212
136799180,16cyclictest3981-21H222:10:212
136199182,15cyclictest303302chrt23:41:061
136199182,15cyclictest303302chrt23:41:051
1361991817,1cyclictest21-21ksoftirqd/119:56:151
1361991815,2cyclictest2731-21date21:00:001
1361991814,3cyclictest14501-21snapd19:42:581
1361991813,4cyclictest0-21swapper/121:07:571
136199181,1cyclictest0-21swapper/100:26:321
136199181,16cyclictest0-21swapper/120:05:171
136199180,17cyclictest0-21swapper/120:03:011
136199180,16cyclictest10213-21cpuspeed_turbos00:05:141
135799182,1cyclictest0-21swapper/022:10:500
135799182,1cyclictest0-21swapper/022:00:310
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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