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2026-06-12 - 22:47
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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 rack1slot1.osadl.org (updated Fri Jun 12, 2026 12:45:16)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
184332214176,25sleep10-21swapper/107:06:371
185562201160,27sleep20-21swapper/207:08:162
185022200161,26sleep30-21swapper/307:07:313
185342199160,25sleep00-21swapper/007:07:560
62322690,0sleep10-21swapper/111:55:171
62322690,0sleep10-21swapper/111:55:171
1878799130,13cyclictest0-21swapper/210:50:172
18777991312,1cyclictest9-21ksoftirqd/011:05:010
1877799130,13cyclictest0-21swapper/011:55:160
1877799130,13cyclictest0-21swapper/011:55:160
18787991210,1cyclictest28-21ksoftirqd/207:19:592
1878799120,0cyclictest0-21swapper/208:15:102
18794991110,1cyclictest35-21ksoftirqd/309:10:153
1877799119,1cyclictest9-21ksoftirqd/007:45:140
1877799112,4cyclictest4384-21sed08:55:000
18777991110,1cyclictest9-21ksoftirqd/010:55:160
1879499109,1cyclictest35-21ksoftirqd/311:35:143
1879499109,1cyclictest35-21ksoftirqd/311:30:123
1879499109,1cyclictest35-21ksoftirqd/311:29:593
1879499109,1cyclictest35-21ksoftirqd/311:20:143
18794991010,0cyclictest35-21ksoftirqd/309:40:143
1878799108,1cyclictest28-21ksoftirqd/211:50:002
18787991010,0cyclictest0-21swapper/209:23:362
1877799109,1cyclictest9-21ksoftirqd/011:24:590
1877799109,1cyclictest9-21ksoftirqd/010:30:010
1877799109,1cyclictest9-21ksoftirqd/010:30:000
1877799108,1cyclictest9-21ksoftirqd/009:15:130
1877799108,1cyclictest9-21ksoftirqd/008:05:000
1877799101,4cyclictest5603-21latency_hist12:40:010
1877799101,4cyclictest10691-21sort08:00:000
1877799100,5cyclictest26556-21perf07:25:010
187949998,1cyclictest35-21ksoftirqd/310:10:003
187879999,0cyclictest28-21ksoftirqd/212:20:132
187879998,1cyclictest28-21ksoftirqd/210:20:182
187879998,1cyclictest28-21ksoftirqd/207:30:152
187879997,1cyclictest28-21ksoftirqd/211:15:012
187789997,1cyclictest21-21ksoftirqd/110:42:561
187779999,0cyclictest9-21ksoftirqd/011:10:210
187779998,1cyclictest9-21ksoftirqd/012:15:140
187779998,1cyclictest9-21ksoftirqd/011:40:140
187779998,1cyclictest9-21ksoftirqd/010:30:140
187779998,1cyclictest9-21ksoftirqd/009:15:010
187779997,1cyclictest9-21ksoftirqd/009:00:200
187779997,1cyclictest9-21ksoftirqd/008:20:150
187779997,1cyclictest9-21ksoftirqd/008:10:000
187779990,6cyclictest1029-21snmpd09:09:430
187949988,0cyclictest35-21ksoftirqd/307:50:003
187949987,1cyclictest35-21ksoftirqd/312:38:483
187949987,1cyclictest35-21ksoftirqd/312:26:423
187949987,1cyclictest35-21ksoftirqd/312:24:593
187949987,1cyclictest35-21ksoftirqd/312:00:143
187949987,1cyclictest35-21ksoftirqd/310:40:123
187949987,1cyclictest35-21ksoftirqd/310:30:153
187949987,1cyclictest35-21ksoftirqd/310:15:013
187949987,1cyclictest35-21ksoftirqd/309:30:003
187949987,1cyclictest35-21ksoftirqd/308:20:003
187949987,1cyclictest35-21ksoftirqd/308:11:253
187949987,1cyclictest35-21ksoftirqd/307:20:133
187949987,1cyclictest18764-21cyclictest10:45:013
187949981,4cyclictest9409-21kworker/3:110:15:133
187949980,7cyclictest15524-21taskset12:09:293
187879988,0cyclictest28-21ksoftirqd/210:15:122
187879987,1cyclictest28-21ksoftirqd/212:05:172
187879987,1cyclictest28-21ksoftirqd/211:30:002
187879987,1cyclictest28-21ksoftirqd/211:15:152
187879987,1cyclictest10212-21/usr/sbin/munin09:05:172
187879986,1cyclictest9363-21cat07:55:132
187879986,1cyclictest28-21ksoftirqd/208:05:142
187879986,1cyclictest1029-21snmpd11:36:362
187879986,1cyclictest1029-21snmpd09:43:582
187879980,7cyclictest0-21swapper/211:43:402
187879980,7cyclictest0-21swapper/211:02:552
187789984,4cyclictest0-21swapper/109:57:541
187789983,0cyclictest111rcu_preempt09:15:201
187789981,6cyclictest0-21swapper/111:05:451
187789980,7cyclictest0-21swapper/110:35:161
187789980,4cyclictest0-21swapper/109:12:461
187789980,0cyclictest0-21swapper/107:41:571
187779988,0cyclictest9-21ksoftirqd/009:35:160
187779988,0cyclictest9-21ksoftirqd/009:35:150
187779988,0cyclictest9-21ksoftirqd/009:35:000
187779987,1cyclictest9-21ksoftirqd/011:39:590
187779987,1cyclictest9-21ksoftirqd/011:15:100
187779987,1cyclictest9-21ksoftirqd/010:20:190
187779987,1cyclictest9-21ksoftirqd/010:10:130
187779986,1cyclictest9-21ksoftirqd/011:25:120
187779986,1cyclictest6625-21gltestperf09:45:140
187779986,1cyclictest1029-21snmpd09:57:040
187779986,1cyclictest1029-21snmpd08:29:570
187779981,5cyclictest11423-21diskmemload10:50:100
187779980,1cyclictest18547-21ssh12:12:360
187779980,1cyclictest13390-21ssh10:38:280
9289270,0sleep10-21swapper/112:00:151
4661270,1sleep30-21swapper/311:10:143
187949977,0cyclictest35-21ksoftirqd/312:17:073
187949977,0cyclictest35-21ksoftirqd/308:50:013
187949977,0cyclictest35-21ksoftirqd/307:25:203
187949976,1cyclictest35-21ksoftirqd/310:05:013
187949976,1cyclictest35-21ksoftirqd/308:20:133
187949976,1cyclictest35-21ksoftirqd/307:50:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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