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2026-07-04 - 10:28
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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 rackdslot1.osadl.org (updated Sat Jul 04, 2026 00:45:36)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1541022460,6sleep10-21swapper/119:05:181
1541022460,6sleep10-21swapper/119:05:181
3076121620,6sleep01712299cyclictest00:15:180
1981921440,6sleep31712599cyclictest19:15:153
241542650,4sleep20-21swapper/222:50:242
17122996328,6cyclictest9-21ksoftirqd/023:50:180
17122996233,4cyclictest9-21ksoftirqd/023:25:120
17122996229,6cyclictest9-21ksoftirqd/019:20:000
17122996131,5cyclictest9-21ksoftirqd/022:25:150
17122996129,4cyclictest9-21ksoftirqd/023:15:280
134491610,4ptp4l0-21swapper/220:49:442
17122996034,3cyclictest9-21ksoftirqd/000:13:120
17122996030,7cyclictest9-21ksoftirqd/021:05:280
17122996026,4cyclictest9-21ksoftirqd/022:56:410
103142600,4sleep210317-21sendmail_mailqu23:30:242
17122995932,4cyclictest9-21ksoftirqd/020:15:490
17122995929,5cyclictest9-21ksoftirqd/023:40:320
134491590,6ptp4l25-21ksoftirqd/123:48:391
17122995830,6cyclictest9-21ksoftirqd/021:22:570
17122995829,3cyclictest9-21ksoftirqd/020:00:000
17122995818,11cyclictest9-21ksoftirqd/020:30:120
134491580,4ptp4l0-21swapper/120:05:211
134491580,4ptp4l0-21swapper/119:31:281
134491580,3ptp4l25413-21ls20:35:213
1712399577,48cyclictest3926-21kworker/1:023:50:491
17122995730,4cyclictest9-21ksoftirqd/019:12:390
17122995729,4cyclictest9-21ksoftirqd/019:40:510
17122995726,4cyclictest9-21ksoftirqd/021:50:230
17122995726,4cyclictest9-21ksoftirqd/021:50:220
17122995725,7cyclictest9-21ksoftirqd/021:55:190
134491570,3ptp4l0-21swapper/123:40:261
1712399561,53cyclictest14091-21kworker/1:020:47:491
17122995629,3cyclictest9-21ksoftirqd/019:37:340
17122995624,9cyclictest9-21ksoftirqd/023:08:090
17122995621,6cyclictest9-21ksoftirqd/021:00:180
17122995619,4cyclictest9-21ksoftirqd/020:35:260
134491560,3ptp4l0-21swapper/119:50:241
134491560,3ptp4l0-21swapper/119:50:241
17124995519,6cyclictest33-21ksoftirqd/221:00:102
17122995529,6cyclictest9-21ksoftirqd/019:47:490
17122995527,6cyclictest9-21ksoftirqd/019:20:250
17122995526,8cyclictest9-21ksoftirqd/022:36:470
17124995420,6cyclictest33-21ksoftirqd/223:35:212
1712299547,5cyclictest24582-21uname21:45:000
17122995435,9cyclictest9-21ksoftirqd/019:35:000
17122995430,3cyclictest9-21ksoftirqd/020:49:390
134491540,4ptp4l0-21swapper/322:16:453
134491540,4ptp4l0-21swapper/222:10:182
31212530,5sleep30-21swapper/320:55:283
17124995322,4cyclictest33-21ksoftirqd/219:57:332
17124995319,4cyclictest33-21ksoftirqd/223:01:272
17122995324,6cyclictest9-21ksoftirqd/020:05:260
17122995320,6cyclictest9-21ksoftirqd/023:30:200
17124995228,4cyclictest33-21ksoftirqd/223:15:192
17124995218,5cyclictest33-21ksoftirqd/219:15:002
17122995224,6cyclictest9-21ksoftirqd/021:30:150
17122995223,8cyclictest9-21ksoftirqd/022:23:520
17122995218,5cyclictest9-21ksoftirqd/022:30:120
17122995218,4cyclictest9-21ksoftirqd/022:45:190
134491520,4ptp4l0-21swapper/223:09:342
17124995121,4cyclictest33-21ksoftirqd/219:34:132
17124995119,8cyclictest33-21ksoftirqd/221:50:072
17124995119,8cyclictest33-21ksoftirqd/221:50:062
17124995115,9cyclictest33-21ksoftirqd/200:19:592
1712399512,47cyclictest14091-21kworker/1:021:44:291
1712299516,3cyclictest6898-21tune2fs22:15:130
17122995123,4cyclictest9-21ksoftirqd/023:38:050
1712299510,5cyclictest1059-21awk20:55:000
134491510,4ptp4l0-21swapper/119:23:441
134491510,3ptp4l0-21swapper/321:49:163
134491510,3ptp4l0-21swapper/119:38:001
134491510,3ptp4l0-21swapper/020:12:080
134491510,3ptp4l0-21swapper/000:20:040
46198500,4rtkit-daemon0-21swapper/323:06:343
17124995021,8cyclictest33-21ksoftirqd/223:46:272
17124995019,3cyclictest33-21ksoftirqd/221:34:252
17124995016,5cyclictest33-21ksoftirqd/221:22:132
1712399502,46cyclictest0-21swapper/121:59:481
17122995020,4cyclictest9-21ksoftirqd/021:15:270
17122995015,6cyclictest9-21ksoftirqd/000:10:010
134691500,1getstats4210-1kworker/2:1H22:35:122
134491500,7ptp4l0-21swapper/319:30:323
134491500,4ptp4l0-21swapper/319:58:423
134491500,4ptp4l0-21swapper/222:29:302
134491500,4ptp4l0-21swapper/220:01:192
134491500,3ptp4l0-21swapper/320:20:183
134491500,3ptp4l0-21swapper/023:20:520
17124994936,11cyclictest33-21ksoftirqd/200:25:002
17124994923,7cyclictest33-21ksoftirqd/220:35:272
17124994921,8cyclictest33-21ksoftirqd/220:53:592
17124994920,10cyclictest33-21ksoftirqd/200:30:372
1712299495,3cyclictest9-21ksoftirqd/019:50:200
1712299495,3cyclictest9-21ksoftirqd/019:50:200
1712299495,2cyclictest16546-21phc2sys21:25:250
17122994919,5cyclictest9-21ksoftirqd/022:00:180
134491490,4ptp4l0-21swapper/019:07:160
134491490,4ptp4l0-21swapper/019:07:150
134491490,3ptp4l0-21swapper/321:05:153
1712499482,3cyclictest121rcu_preempt23:14:592
17124994820,6cyclictest33-21ksoftirqd/220:15:272
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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