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2026-07-18 - 00:15
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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 100 highest latencies:
System rack1slot1.osadl.org (updated Fri Jul 17, 2026 12:45:10)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
333624850,3sleep10-21swapper/107:05:201
40092219152,22sleep20-21swapper/207:05:302
43442211148,22sleep00-21swapper/007:09:500
40472201163,25sleep30-21swapper/307:05:593
94332680,0sleep30-21swapper/307:15:213
140852640,0sleep00-21swapper/012:15:180
117162220,1sleep121-21ksoftirqd/108:30:161
4445991713,4cyclictest56-21kworker/1:109:38:421
4445991712,1cyclictest56-21kworker/1:110:12:151
4445991612,4cyclictest21-21ksoftirqd/110:23:271
4445991511,4cyclictest21-21ksoftirqd/112:15:261
4445991511,4cyclictest21-21ksoftirqd/108:09:061
179882150,0sleep10-21swapper/110:15:371
4445991410,4cyclictest21-21ksoftirqd/109:49:541
96182130,0sleep10-21swapper/112:10:161
444599139,4cyclictest21-21ksoftirqd/112:37:501
444599139,4cyclictest21-21ksoftirqd/109:05:061
444599139,0cyclictest111rcu_preempt11:41:491
444599139,0cyclictest0-21swapper/107:46:431
272072130,0sleep00-21swapper/011:10:150
444599120,12cyclictest111rcu_preempt10:01:061
444599120,12cyclictest0-21swapper/107:24:191
444599120,0cyclictest0-21swapper/111:30:381
4429991211,1cyclictest9-21ksoftirqd/011:35:010
4429991211,1cyclictest9-21ksoftirqd/009:55:000
445899110,5cyclictest15103-21apt-get10:55:133
4453991110,1cyclictest28-21ksoftirqd/208:30:002
444599110,11cyclictest56-21kworker/1:107:35:311
444599110,11cyclictest0-21swapper/107:13:101
444599110,0cyclictest0-21swapper/110:45:511
442999119,1cyclictest9-21ksoftirqd/011:20:000
442999119,1cyclictest9-21ksoftirqd/010:50:000
442999119,1cyclictest9-21ksoftirqd/008:40:000
442999113,4cyclictest5979-21latency_hist08:20:000
4453991010,0cyclictest28-21ksoftirqd/210:39:592
445399101,2cyclictest13179-21apt-get09:30:112
444599109,1cyclictest21-21ksoftirqd/108:20:161
444599109,1cyclictest111rcu_preempt12:30:131
444599108,1cyclictest21-21ksoftirqd/112:05:001
444599100,4cyclictest111rcu_preempt08:15:131
444599100,10cyclictest0-21swapper/110:34:391
444599100,10cyclictest0-21swapper/108:53:531
442999109,1cyclictest9-21ksoftirqd/012:35:000
442999109,1cyclictest9-21ksoftirqd/012:10:000
442999109,1cyclictest9-21ksoftirqd/011:25:000
442999108,1cyclictest9-21ksoftirqd/010:00:000
442999102,4cyclictest12917-21perf09:30:000
44589999,0cyclictest35-21ksoftirqd/311:57:543
44589997,1cyclictest35-21ksoftirqd/308:15:003
44589996,1cyclictest35-21ksoftirqd/308:00:003
44589995,3cyclictest7206-21nscd12:20:123
44589991,3cyclictest1846-21taskset10:37:203
44539990,0cyclictest0-21swapper/210:08:292
44459999,0cyclictest21-21ksoftirqd/111:15:101
44459998,1cyclictest21-21ksoftirqd/111:45:151
44459998,1cyclictest21-21ksoftirqd/111:05:141
44459998,1cyclictest21-21ksoftirqd/109:55:181
44459998,1cyclictest21-21ksoftirqd/109:25:091
44459998,1cyclictest21-21ksoftirqd/108:45:111
44459998,1cyclictest21-21ksoftirqd/107:35:001
44459998,1cyclictest111rcu_preempt07:55:151
44459998,0cyclictest21-21ksoftirqd/111:10:161
44459997,1cyclictest111rcu_preempt09:30:111
44459996,0cyclictest21-21ksoftirqd/111:26:521
44459992,4cyclictest21-21ksoftirqd/110:05:061
44459990,8cyclictest21-21ksoftirqd/107:50:151
44459990,7cyclictest56-21kworker/1:110:59:211
44459990,5cyclictest21-21ksoftirqd/109:15:161
44459990,5cyclictest0-21swapper/112:26:361
44299999,0cyclictest9-21ksoftirqd/010:15:440
44299998,1cyclictest9-21ksoftirqd/011:25:130
44299998,1cyclictest9-21ksoftirqd/009:50:000
44299997,1cyclictest9-21ksoftirqd/012:15:010
44299997,1cyclictest9-21ksoftirqd/009:35:140
44299991,4cyclictest694-21perf12:00:000
44299991,1cyclictest12287-21taskset07:23:510
44299990,5cyclictest9050-21perf09:24:590
44589986,1cyclictest11947-21ssh11:30:433
44589985,1cyclictest13650irq/124-ahci[0008:59:563
44589981,6cyclictest115132sleep310:09:353
44589980,4cyclictest30194-21runrttasks09:10:113
44589980,4cyclictest0-21swapper/311:25:053
44539986,1cyclictest61650irq/122-eno112:15:142
44539986,1cyclictest61650irq/122-eno112:05:212
44539986,1cyclictest61650irq/122-eno111:05:182
44539986,1cyclictest61650irq/122-eno110:30:172
44539983,4cyclictest6802-21munin-node11:46:292
44539981,6cyclictest9281-21/usr/sbin/munin09:25:202
44539980,5cyclictest0-21swapper/207:35:122
44459988,0cyclictest211ksoftirqd/109:40:121
44459988,0cyclictest21-21ksoftirqd/112:05:581
44459988,0cyclictest21-21ksoftirqd/111:50:101
44459988,0cyclictest21-21ksoftirqd/111:36:361
44459988,0cyclictest21-21ksoftirqd/111:21:141
44459988,0cyclictest21-21ksoftirqd/111:04:001
44459988,0cyclictest21-21ksoftirqd/110:50:161
44459988,0cyclictest21-21ksoftirqd/110:50:161
44459988,0cyclictest21-21ksoftirqd/110:40:321
44459988,0cyclictest21-21ksoftirqd/110:25:181
44459988,0cyclictest21-21ksoftirqd/109:11:241
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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