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2026-03-20 - 12:16
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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 Mar 20, 2026 00:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2828724870,5sleep10-21swapper/119:05:231
2828724870,5sleep10-21swapper/119:05:231
287602201162,26sleep20-21swapper/219:08:392
287602201162,26sleep20-21swapper/219:08:382
287562200161,26sleep30-21swapper/319:08:363
287562200161,26sleep30-21swapper/319:08:353
286812199161,25sleep00-21swapper/019:07:360
286812199161,25sleep00-21swapper/019:07:360
95952570,0sleep30-21swapper/300:20:183
320652170,0sleep10-21swapper/122:45:121
28955991311,1cyclictest28-21ksoftirqd/220:49:592
28944991313,0cyclictest0-21swapper/120:05:361
28955991211,1cyclictest28-21ksoftirqd/221:20:012
28955991210,1cyclictest28-21ksoftirqd/221:40:002
2895599120,12cyclictest0-21swapper/222:05:212
2896299119,1cyclictest35-21ksoftirqd/319:50:003
2896299118,2cyclictest32375-21ssh00:09:073
28962991110,1cyclictest35-21ksoftirqd/323:10:013
2894099119,1cyclictest9-21ksoftirqd/020:00:000
2894099103,6cyclictest2752-21perf20:29:590
4925290,0sleep10-21swapper/123:33:431
289629998,1cyclictest35-21ksoftirqd/321:00:013
289629998,1cyclictest35-21ksoftirqd/300:15:003
289629996,1cyclictest35-21ksoftirqd/320:35:003
289559997,1cyclictest28-21ksoftirqd/219:20:092
289559990,8cyclictest6612-21cron19:30:002
289559990,5cyclictest0-21swapper/221:10:102
289409998,1cyclictest9-21ksoftirqd/023:00:010
289409997,1cyclictest9-21ksoftirqd/023:25:000
289409997,1cyclictest9-21ksoftirqd/021:39:590
289409994,1cyclictest4585-21ssh22:50:180
289409991,1cyclictest240-21systemd-journal22:19:550
289629987,1cyclictest35-21ksoftirqd/300:20:003
289629986,1cyclictest35-21ksoftirqd/323:15:003
289629986,1cyclictest35-21ksoftirqd/322:45:003
289629986,1cyclictest35-21ksoftirqd/320:10:013
289629986,1cyclictest35-21ksoftirqd/319:35:003
289629986,1cyclictest35-21ksoftirqd/319:20:013
289629986,1cyclictest18368-21cat21:45:153
289629982,5cyclictest9467-21nscd00:01:133
289629982,4cyclictest10039-21apt-get20:45:113
289629982,3cyclictest16253-21apt-get00:30:103
289629981,4cyclictest21853-21apt-get21:10:113
289629980,3cyclictest0-21swapper/319:30:093
289559988,0cyclictest28-21ksoftirqd/222:01:102
289559986,1cyclictest707-21snmpd23:35:052
289559986,1cyclictest707-21snmpd21:58:082
289559986,1cyclictest707-21snmpd00:29:482
289559986,1cyclictest23286-21ssh22:33:572
289449980,5cyclictest0-21swapper/122:14:551
289409987,1cyclictest9-21ksoftirqd/022:10:010
289409984,0cyclictest0-21swapper/021:05:140
289409983,4cyclictest7502-21users23:35:190
289409982,5cyclictest21598-21diskmemload00:25:160
289409981,6cyclictest19327-1kworker/u9:223:55:000
289409981,4cyclictest11399-21cut19:40:000
289409980,7cyclictest2059-21ssh22:47:550
289409980,4cyclictest11968-21perf00:25:000
289409980,2cyclictest20107-21ssh00:35:110
289409980,1cyclictest23702-21ssh21:51:570
289409980,1cyclictest1619-21apt-get21:25:120
289409980,0cyclictest0-21swapper/020:45:110
289629977,0cyclictest35-21ksoftirqd/322:15:133
289629976,1cyclictest707-21snmpd23:52:243
289629976,1cyclictest707-21snmpd22:01:363
289629976,1cyclictest35-21ksoftirqd/323:35:003
289629976,1cyclictest35-21ksoftirqd/323:00:123
289629976,1cyclictest35-21ksoftirqd/323:00:013
289629976,1cyclictest35-21ksoftirqd/321:07:323
289629976,1cyclictest18004-21cat21:00:133
289629975,1cyclictest707-21snmpd21:31:293
289629975,1cyclictest707-21snmpd19:40:593
289629975,1cyclictest707-21snmpd00:26:223
289629975,1cyclictest35-21ksoftirqd/323:55:143
289629975,1cyclictest35-21ksoftirqd/319:25:003
289629975,1cyclictest31547-21cat20:20:153
289629971,5cyclictest14813-21open_files21:40:163
289629971,4cyclictest707-21snmpd23:21:103
289629971,3cyclictest0-21swapper/321:55:463
289629970,6cyclictest6433-21kworker/3:122:50:123
289629970,6cyclictest14509-21latency_hist20:55:003
289629970,6cyclictest1252-21ssh21:24:483
289629970,4cyclictest30864-21cstates23:25:133
289559976,1cyclictest61650irq/122-eno123:56:492
289559976,1cyclictest61650irq/122-eno123:51:502
289559976,1cyclictest61650irq/122-eno123:40:372
289559976,1cyclictest61650irq/122-eno123:12:562
289559976,1cyclictest61650irq/122-eno123:06:352
289559976,1cyclictest61650irq/122-eno122:50:482
289559976,1cyclictest61650irq/122-eno122:14:472
289559976,1cyclictest61650irq/122-eno120:20:112
289559976,1cyclictest61650irq/122-eno100:38:532
289559976,1cyclictest61650irq/122-eno100:15:402
289559976,1cyclictest25163-21ntpq22:35:172
289559976,0cyclictest61650irq/122-eno121:25:212
289559975,1cyclictest61650irq/122-eno123:34:592
289559975,1cyclictest61650irq/122-eno122:45:152
289559975,1cyclictest61650irq/122-eno121:40:392
289559973,2cyclictest240-21systemd-journal20:04:592
289559972,4cyclictest27871-21apt-get22:40:112
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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