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2026-03-22 - 09:04
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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 highest latencies:
System rack1slot1.osadl.org (updated Sun Mar 22, 2026 00:45:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
285712216150,52sleep20-21swapper/219:09:072
283742210175,23sleep30-21swapper/319:06:353
285502209170,26sleep10-21swapper/119:08:501
284282205152,41sleep00-21swapper/019:07:160
323452740,0sleep00-21swapper/022:04:220
43462150,0sleep00-21swapper/000:15:150
2873099138,4cyclictest21-21ksoftirqd/100:10:181
28730991313,0cyclictest21-21ksoftirqd/123:01:121
28730991313,0cyclictest0-21swapper/123:59:061
2873099120,12cyclictest56-21kworker/1:121:44:461
2873099120,12cyclictest56-21kworker/1:120:37:341
2873099120,12cyclictest56-21kworker/1:120:03:581
2873099120,12cyclictest0-21swapper/123:36:421
2873099120,12cyclictest0-21swapper/121:55:551
2873099120,12cyclictest0-21swapper/120:15:101
2872299123,4cyclictest25508-21perf20:10:000
2873999119,1cyclictest28-21ksoftirqd/223:25:012
2873999119,1cyclictest28-21ksoftirqd/222:45:102
2873999110,8cyclictest707-21snmpd23:11:422
2873999110,1cyclictest0-21swapper/200:38:242
2873099113,0cyclictest111rcu_preempt23:27:391
2873099112,8cyclictest111rcu_preempt00:08:571
2873099111,3cyclictest21-21ksoftirqd/122:05:111
2873099110,11cyclictest0-21swapper/120:59:581
2873099110,0cyclictest0-21swapper/121:11:081
2873099110,0cyclictest0-21swapper/119:41:341
2872299113,4cyclictest3756-21perf00:15:000
2874599100,7cyclictest20001-21diskstats00:35:143
2873999109,1cyclictest28-21ksoftirqd/223:40:002
2873999108,1cyclictest28-21ksoftirqd/220:30:142
2873999108,1cyclictest28-21ksoftirqd/220:05:152
2873099109,1cyclictest21-21ksoftirqd/120:50:101
2873099108,1cyclictest21-21ksoftirqd/121:05:161
2873099108,1cyclictest21-21ksoftirqd/100:18:491
2873099108,1cyclictest111rcu_preempt20:28:151
2873099104,4cyclictest111rcu_preempt21:30:131
2873099102,1cyclictest111rcu_preempt23:13:591
28730991010,0cyclictest111rcu_preempt22:00:421
28730991010,0cyclictest111rcu_preempt00:00:131
30441290,0sleep00-21swapper/020:20:100
287459997,1cyclictest35-21ksoftirqd/321:25:143
287399998,1cyclictest28-21ksoftirqd/223:05:132
287399998,1cyclictest28-21ksoftirqd/221:35:012
287399997,1cyclictest28-21ksoftirqd/222:45:002
287399997,1cyclictest28-21ksoftirqd/220:40:102
287399997,1cyclictest28-21ksoftirqd/219:55:002
287399993,5cyclictest21247-21aten_r1power_vo21:50:122
287399991,6cyclictest8251-21kworker/u8:122:51:162
287309999,0cyclictest21-21ksoftirqd/123:05:041
287309999,0cyclictest21-21ksoftirqd/122:18:301
287309999,0cyclictest21-21ksoftirqd/122:18:301
287309999,0cyclictest21-21ksoftirqd/121:51:501
287309999,0cyclictest21-21ksoftirqd/121:15:441
287309999,0cyclictest21-21ksoftirqd/119:53:461
287309999,0cyclictest111rcu_preempt00:37:121
287309998,1cyclictest21-21ksoftirqd/123:23:531
287309998,1cyclictest21-21ksoftirqd/122:59:391
287309998,1cyclictest21-21ksoftirqd/122:48:391
287309998,1cyclictest21-21ksoftirqd/122:25:181
287309998,1cyclictest21-21ksoftirqd/121:35:151
287309998,1cyclictest21-21ksoftirqd/121:20:201
287309998,1cyclictest21-21ksoftirqd/120:11:271
287309998,1cyclictest21-21ksoftirqd/119:55:181
287309998,1cyclictest21-21ksoftirqd/119:29:451
287309998,1cyclictest21-21ksoftirqd/100:30:111
287309998,1cyclictest21-21ksoftirqd/100:20:211
287309996,3cyclictest21-21ksoftirqd/121:25:221
287309992,6cyclictest21-21ksoftirqd/120:30:111
287309992,6cyclictest111rcu_preempt22:40:111
287309992,4cyclictest111rcu_preempt22:14:371
287309991,7cyclictest21-21ksoftirqd/122:20:191
287309990,8cyclictest21-21ksoftirqd/122:50:191
287309990,8cyclictest21-21ksoftirqd/121:46:371
287459986,1cyclictest707-21snmpd23:57:363
287459986,1cyclictest707-21snmpd23:51:153
287459986,1cyclictest707-21snmpd23:38:033
287459986,1cyclictest707-21snmpd23:33:453
287459986,1cyclictest707-21snmpd22:24:003
287459986,1cyclictest707-21snmpd21:58:353
287459986,1cyclictest707-21snmpd21:34:353
287459986,1cyclictest707-21snmpd20:23:303
287459986,1cyclictest707-21snmpd19:48:293
287459986,1cyclictest707-21snmpd19:11:313
287459986,1cyclictest707-21snmpd00:17:343
287459986,1cyclictest707-21snmpd00:14:583
287459982,2cyclictest425-21/usr/sbin/munin22:05:163
287399988,0cyclictest28-21ksoftirqd/221:30:172
287399987,1cyclictest28-21ksoftirqd/222:20:002
287399987,1cyclictest28-21ksoftirqd/222:20:002
287399987,1cyclictest28-21ksoftirqd/200:05:132
287399986,1cyclictest61650irq/122-eno123:45:112
287399986,1cyclictest61650irq/122-eno119:30:002
287399986,1cyclictest61650irq/122-eno119:20:002
287399986,1cyclictest28-21ksoftirqd/220:15:002
287399986,1cyclictest28-21ksoftirqd/200:15:162
287399984,2cyclictest61650irq/122-eno123:00:102
287399981,6cyclictest10809-21kworker/u8:223:42:192
287399980,8cyclictest0-21swapper/222:11:482
287399980,5cyclictest61650irq/122-eno122:00:182
287309988,0cyclictest21-21ksoftirqd/123:40:161
287309988,0cyclictest21-21ksoftirqd/123:30:321
287309988,0cyclictest21-21ksoftirqd/122:35:061
287309988,0cyclictest21-21ksoftirqd/120:09:521
287309988,0cyclictest21-21ksoftirqd/119:20:161
287309988,0cyclictest21-21ksoftirqd/119:20:161
287309988,0cyclictest21-21ksoftirqd/119:15:121
287309988,0cyclictest111rcu_preempt22:30:151
287309988,0cyclictest111rcu_preempt20:44:351
287309988,0cyclictest111rcu_preempt19:35:231
287309988,0cyclictest111rcu_preempt19:30:151
287309988,0cyclictest0-21swapper/119:10:211
287309987,1cyclictest21-21ksoftirqd/120:20:101
287309987,1cyclictest21-21ksoftirqd/119:46:311
287309981,7cyclictest21-21ksoftirqd/123:50:111
287309980,8cyclictest21-21ksoftirqd/100:25:031
287309980,8cyclictest111rcu_preempt21:01:171
287309980,7cyclictest21-21ksoftirqd/123:45:031
287309980,7cyclictest0-21swapper/123:15:031
287229986,1cyclictest707-21snmpd00:26:100
287229984,4cyclictest11542-1kworker/u9:021:39:150
287229984,2cyclictest240-21systemd-journal19:35:000
287229984,0cyclictest0-21swapper/021:15:110
287229982,6cyclictest19418-1kworker/u9:021:47:480
287229981,6cyclictest14591-21ssh23:05:110
287229980,7cyclictest8562-21ssh22:55:200
287229980,7cyclictest22150-21ntpq20:00:180
287229980,7cyclictest11527-21ssh22:19:270
287229980,7cyclictest11527-21ssh22:19:270
287229980,4cyclictest23114-21latency_hist00:40:000
287459977,0cyclictest0-21swapper/322:28:173
287459976,1cyclictest707-21snmpd22:53:133
287459976,1cyclictest707-21snmpd19:25:283
287459975,1cyclictest707-21snmpd23:43:303
287459975,1cyclictest707-21snmpd23:07:263
287459975,1cyclictest707-21snmpd20:48:583
287459975,1cyclictest707-21snmpd20:41:003
287459975,1cyclictest707-21snmpd19:59:473
287459975,1cyclictest707-21snmpd19:52:233
287459975,1cyclictest707-21snmpd19:42:023
287459975,1cyclictest707-21snmpd19:22:253
287459975,1cyclictest707-21snmpd19:22:253
287459975,1cyclictest26275-21ssh22:37:403
287459971,2cyclictest0-21swapper/322:46:033
287459970,6cyclictest25026-21ssh21:14:223
287459970,4cyclictest0-21swapper/322:30:443
287459970,2cyclictest0-21swapper/321:21:383
287459970,2cyclictest0-21swapper/320:15:113
287399976,1cyclictest707-21snmpd21:17:342
287399976,1cyclictest61650irq/122-eno123:55:192
287399976,1cyclictest61650irq/122-eno100:10:022
287399976,1cyclictest28-21ksoftirqd/219:40:002
287399976,1cyclictest28-21ksoftirqd/200:35:002
287399976,1cyclictest28-21ksoftirqd/200:05:002
287399976,0cyclictest61650irq/122-eno123:30:142
287399975,1cyclictest61650irq/122-eno122:20:142
287399975,1cyclictest61650irq/122-eno119:55:112
287399975,1cyclictest28-21ksoftirqd/223:55:002
287399975,1cyclictest28-21ksoftirqd/222:00:002
287399973,2cyclictest548-21systemd-logind20:20:182
287399973,1cyclictest240-21systemd-journal20:40:002
287399970,5cyclictest21384-21diskmemload21:47:542
287399970,1cyclictest0-21swapper/222:25:132
287399970,1cyclictest0-21swapper/220:27:542
287309977,0cyclictest21-21ksoftirqd/120:45:101
287229976,1cyclictest27348-21ssh00:02:160
287229976,1cyclictest26966-1kworker/u9:100:06:490
287229976,1cyclictest24951-21/usr/sbin/munin21:55:130
287229976,1cyclictest1468-21telnet23:30:130
287229975,1cyclictest9-21ksoftirqd/019:55:060
287229975,1cyclictest707-21snmpd21:02:280
287229975,1cyclictest27586-21ssh22:40:110
287229975,1cyclictest25566-21ssh23:19:270
287229975,1cyclictest19418-1kworker/u9:021:50:140
287229971,5cyclictest5759-21ssh22:10:190
287229971,5cyclictest101rcuc/020:15:000
287229970,6cyclictest5461-21ssh21:30:110
287229970,6cyclictest3246-21ps19:20:180
287229970,6cyclictest3246-21ps19:20:180
287229970,6cyclictest29997-21ssh23:25:110
287229970,6cyclictest2970-21cpuspeed_turbos22:50:140
287229970,6cyclictest26166-21telnet23:20:120
287229970,6cyclictest22136-21df_inode21:10:130
287229970,6cyclictest21384-21diskmemload21:40:020
287229970,6cyclictest21384-21diskmemload21:25:130
287229970,6cyclictest21384-21diskmemload00:20:340
287229970,6cyclictest15595-21ssh23:47:220
287229970,3cyclictest21357-21cron21:10:000
287229970,2cyclictest20270-21df_inode22:30:130
287229970,1cyclictest31754-21ssh21:21:070
287229970,1cyclictest31288-21ssh22:45:050
287229970,1cyclictest26123-21ssh22:37:150
287229970,1cyclictest23280-21ssh23:56:470
287229970,1cyclictest18994-21ssh23:10:130
287229970,1cyclictest14080-21ssh22:20:580
287229970,1cyclictest13279-21ssh23:02:310
287229970,1cyclictest11533-21ssh23:41:480
287229970,1cyclictest0-21swapper/023:50:120
287229970,1cyclictest0-21swapper/022:05:100
287229970,1cyclictest0-21swapper/019:46:500
287459965,1cyclictest707-21snmpd19:30:403
287459965,1cyclictest6733-21ssh22:55:023
287459965,1cyclictest6447-21ssh22:11:143
287459965,1cyclictest35-21ksoftirqd/322:00:003
287459965,1cyclictest35-21ksoftirqd/321:01:353
287459965,1cyclictest30850-21ssh00:06:193
287459965,1cyclictest30495-21ssh22:43:373
287459965,1cyclictest25380-21ssh23:18:573
287459965,1cyclictest22163-21ntpq20:00:183
287459965,1cyclictest20445-21ssh21:49:053
287459965,1cyclictest17480-21ssh00:30:313
287459965,1cyclictest16436-21ssh21:43:393
287459965,1cyclictest16119-21ssh23:48:453
287459965,1cyclictest13797-21ssh00:26:023
287459965,1cyclictest1263-21cat20:25:163
287459965,1cyclictest10681-21ntpq21:35:153
287459964,1cyclictest707-21snmpd20:09:323
287459964,1cyclictest31999-21ssh23:25:583
287459961,2cyclictest25589-21apt-get21:15:103
287459960,6cyclictest20943-21ssh23:12:243
287459960,3cyclictest26527-21cstates23:20:133
287459960,2cyclictest707-21snmpd00:21:193
287399966,0cyclictest61650irq/122-eno123:25:192
287399966,0cyclictest61650irq/122-eno122:55:162
287399966,0cyclictest61650irq/122-eno122:35:022
287399966,0cyclictest61650irq/122-eno122:30:292
287399966,0cyclictest61650irq/122-eno122:05:022
287399966,0cyclictest61650irq/122-eno121:25:022
287399966,0cyclictest61650irq/122-eno121:10:042
287399966,0cyclictest61650irq/122-eno121:08:592
287399966,0cyclictest61650irq/122-eno120:45:102
287399966,0cyclictest61650irq/122-eno120:00:482
287399966,0cyclictest61650irq/122-eno119:44:132
287399966,0cyclictest61650irq/122-eno119:30:452
287399966,0cyclictest61650irq/122-eno119:21:252
287399966,0cyclictest61650irq/122-eno119:21:252
287399966,0cyclictest61650irq/122-eno100:20:012
287399965,1cyclictest707-21snmpd19:45:142
287399965,1cyclictest30884-21ntpq21:20:182
287399965,1cyclictest28-21ksoftirqd/221:40:182
287399965,1cyclictest28-21ksoftirqd/220:50:122
287399965,1cyclictest12291-21ssh00:25:142
287399964,1cyclictest707-21snmpd19:14:432
287399964,1cyclictest28-21ksoftirqd/223:15:142
287399960,6cyclictest0-21swapper/221:00:102
287399960,6cyclictest0-21swapper/220:16:362
287229965,1cyclictest707-21snmpd19:15:130
287229964,1cyclictest707-21snmpd20:47:580
287229962,2cyclictest21384-21diskmemload23:35:070
287229962,0cyclictest0-21swapper/019:10:120
287229961,0cyclictest15871-21ssh22:25:070
287229960,6cyclictest0-21swapper/020:57:100
287229960,6cyclictest0-21swapper/019:25:340
287229960,5cyclictest0-21swapper/020:40:090
287229960,3cyclictest0-21swapper/000:30:010
287229960,0cyclictest0-21swapper/020:54:590
287229960,0cyclictest0-21swapper/020:15:010
287459955,0cyclictest31094-21kworker/3:020:37:343
287459954,1cyclictest8129-21ssh22:15:043
287459954,1cyclictest8129-21ssh22:15:043
287459954,1cyclictest707-21snmpd19:39:463
287459954,1cyclictest35-21ksoftirqd/320:53:283
287459953,1cyclictest26577-21unixbench_singl00:00:203
287459952,2cyclictest3520-21sed20:30:143
287459952,0cyclictest19250-21apt-get21:05:123
287459951,1cyclictest16644-21munin-plugin-st21:00:003
287459951,1cyclictest11412-21gltestperf23:00:143
287459950,3cyclictest22725-21grep21:50:203
287459950,0cyclictest0-21swapper/320:14:303
287399955,0cyclictest61650irq/122-eno120:55:122
287229954,1cyclictest707-21snmpd19:40:470
287229951,2cyclictest0-21swapper/019:50:190
287229950,5cyclictest0-21swapper/020:35:180
287229950,5cyclictest0-21swapper/020:30:150
287229950,5cyclictest0-21swapper/020:26:340
287229950,0cyclictest0-21swapper/019:35:130
287459944,0cyclictest31601-21sensors19:15:013
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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