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2026-05-14 - 05:24
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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 Thu May 14, 2026 00:45:17)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105992213178,23sleep00-21swapper/019:05:560
105592213150,49sleep20-21swapper/219:05:252
106892202163,25sleep10-21swapper/119:07:051
87992201161,26sleep30-21swapper/319:05:063
182192750,0sleep10-21swapper/122:53:131
215882730,1sleep121-21ksoftirqd/122:15:121
12552720,0sleep10-21swapper/122:30:151
287582670,0sleep00-21swapper/019:45:130
249812660,0sleep10-21swapper/123:45:151
294682170,0sleep00-21swapper/022:25:130
1100199130,13cyclictest56-21kworker/1:123:08:261
1100199130,0cyclictest56-21kworker/1:120:09:181
1100199130,0cyclictest56-21kworker/1:120:09:181
1102499121,10cyclictest30299-21taskset21:42:503
11001991210,1cyclictest111rcu_preempt21:14:441
1100199120,12cyclictest0-21swapper/120:31:411
1100199120,0cyclictest0-21swapper/119:24:311
1099399123,4cyclictest706-21latency_hist19:54:590
10993991210,1cyclictest9-21ksoftirqd/020:05:010
1101799119,1cyclictest28-21ksoftirqd/223:04:592
11017991111,0cyclictest28-21ksoftirqd/200:10:002
1100199113,1cyclictest111rcu_preempt23:11:291
1100199110,8cyclictest21-21ksoftirqd/119:10:121
1099399112,4cyclictest17784-21sed00:20:000
10993991110,1cyclictest9-21ksoftirqd/019:25:000
1102499100,5cyclictest4099-21perf21:10:003
1102499100,2cyclictest0-21swapper/319:10:113
1101799108,1cyclictest28-21ksoftirqd/222:55:012
1101799108,1cyclictest28-21ksoftirqd/221:55:142
1101799100,3cyclictest0-21swapper/220:40:122
1100199107,2cyclictest21-21ksoftirqd/100:04:151
1100199102,7cyclictest111rcu_preempt23:42:581
1100199101,8cyclictest111rcu_preempt21:33:121
1100199100,5cyclictest21-21ksoftirqd/122:48:361
1099399109,1cyclictest9-21ksoftirqd/021:30:000
1099399109,1cyclictest9-21ksoftirqd/000:05:120
1099399108,1cyclictest9-21ksoftirqd/000:30:010
19459290,1sleep30-21swapper/321:29:343
110249998,1cyclictest35-21ksoftirqd/322:19:593
110249990,5cyclictest0-21swapper/322:48:543
110179998,1cyclictest28-21ksoftirqd/222:35:002
110019999,0cyclictest21-21ksoftirqd/123:35:231
110019999,0cyclictest21-21ksoftirqd/120:12:301
110019998,1cyclictest21-21ksoftirqd/123:54:451
110019998,1cyclictest21-21ksoftirqd/123:31:161
110019998,1cyclictest21-21ksoftirqd/122:55:061
110019998,1cyclictest21-21ksoftirqd/122:27:051
110019998,1cyclictest21-21ksoftirqd/122:12:311
110019998,1cyclictest21-21ksoftirqd/121:20:541
110019998,1cyclictest21-21ksoftirqd/120:55:381
110019998,1cyclictest21-21ksoftirqd/120:45:121
110019998,1cyclictest21-21ksoftirqd/120:00:211
110019998,1cyclictest21-21ksoftirqd/119:40:241
110019998,1cyclictest21-21ksoftirqd/119:38:001
110019998,1cyclictest21-21ksoftirqd/119:32:271
110019998,1cyclictest21-21ksoftirqd/119:25:341
110019998,1cyclictest21-21ksoftirqd/119:15:371
110019998,1cyclictest21-21ksoftirqd/100:10:221
110019997,1cyclictest111rcu_preempt22:20:151
110019997,1cyclictest111rcu_preempt21:45:141
110019997,1cyclictest111rcu_preempt21:18:561
110019997,1cyclictest111rcu_preempt00:25:161
110019996,2cyclictest0-21swapper/100:35:011
110019995,3cyclictest201rcuc/119:55:121
110019992,0cyclictest111rcu_preempt22:40:431
110019991,8cyclictest111rcu_preempt21:51:221
110019991,1cyclictest21-21ksoftirqd/123:00:221
110019991,0cyclictest21-21ksoftirqd/123:55:341
110019991,0cyclictest21-21ksoftirqd/100:18:141
110019990,8cyclictest21-21ksoftirqd/123:25:501
110019990,8cyclictest21-21ksoftirqd/121:55:141
110019990,8cyclictest111rcu_preempt00:30:451
110019990,7cyclictest21-21ksoftirqd/121:35:141
109939997,1cyclictest9-21ksoftirqd/021:55:000
109939996,1cyclictest9-21ksoftirqd/021:29:590
109939994,1cyclictest585-21rs:main0
109939990,1cyclictest240-21systemd-journal23:14:550
110249986,1cyclictest23530-21snmpd20:43:203
110249986,1cyclictest23530-21snmpd19:54:103
110249986,1cyclictest23530-21snmpd19:28:323
110249981,5cyclictest13558-21munin-node21:46:033
110249980,5cyclictest1679-21apt-get23:15:123
110179988,0cyclictest0-21swapper/223:27:532
110179987,1cyclictest28-21ksoftirqd/222:05:012
110179986,1cyclictest61650irq/122-eno122:20:122
110179986,1cyclictest61650irq/122-eno121:50:592
110179986,1cyclictest61650irq/122-eno121:48:262
110179986,1cyclictest28-21ksoftirqd/222:35:142
110179986,1cyclictest25266-21ls23:45:182
110179986,1cyclictest23530-21snmpd22:55:422
110179986,1cyclictest23530-21snmpd22:40:542
110179985,2cyclictest13959-21cron00:15:002
110179983,2cyclictest240-21systemd-journal20:00:002
110179980,4cyclictest26640-21apt-get23:05:112
110179980,1cyclictest0-21swapper/221:29:162
110019988,0cyclictest21-21ksoftirqd/122:35:121
110019988,0cyclictest21-21ksoftirqd/122:05:251
110019988,0cyclictest21-21ksoftirqd/120:50:361
110019988,0cyclictest21-21ksoftirqd/120:40:271
110019988,0cyclictest21-21ksoftirqd/120:25:291
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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