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2026-04-13 - 21:44
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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 376 highest latencies:
System rack1slot1.osadl.org (updated Mon Apr 13, 2026 12:45:18)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1900424170,4sleep121-21ksoftirqd/107:05:231
193312225156,26sleep30-21swapper/307:07:353
194152206156,24sleep00-21swapper/007:08:410
192782202163,25sleep20-21swapper/207:06:532
85112150,0sleep00-21swapper/009:45:140
19594991311,1cyclictest9-21ksoftirqd/007:55:010
238642120,0sleep30-21swapper/307:15:153
19596991211,1cyclictest28-21ksoftirqd/211:45:162
19596991210,1cyclictest28-21ksoftirqd/208:25:002
19594991211,1cyclictest9-21ksoftirqd/008:15:000
1959699119,1cyclictest28-21ksoftirqd/212:35:122
19596991111,0cyclictest28-21ksoftirqd/209:33:062
19596991110,1cyclictest28-21ksoftirqd/212:24:552
19596991110,1cyclictest28-21ksoftirqd/211:00:002
19596991110,1cyclictest28-21ksoftirqd/210:20:132
19594991110,1cyclictest9-21ksoftirqd/011:05:000
1959799109,1cyclictest35-21ksoftirqd/308:50:013
1959799107,2cyclictest35-21ksoftirqd/308:00:013
1959799107,2cyclictest35-21ksoftirqd/308:00:013
1959699109,1cyclictest28-21ksoftirqd/212:30:372
1959699109,1cyclictest28-21ksoftirqd/211:36:542
1959699109,1cyclictest28-21ksoftirqd/209:25:112
1959699109,1cyclictest28-21ksoftirqd/207:24:592
1959699108,1cyclictest28-21ksoftirqd/208:40:002
1959699101,8cyclictest0-21swapper/208:05:202
1959499105,4cyclictest22680-21if_eno112:10:150
1959499103,6cyclictest32096-21perf07:35:000
28627290,0sleep10-21swapper/110:54:541
195969998,1cyclictest28-21ksoftirqd/212:12:152
195969998,1cyclictest28-21ksoftirqd/211:05:132
195969998,1cyclictest28-21ksoftirqd/210:16:502
195969998,1cyclictest28-21ksoftirqd/209:45:132
195969998,1cyclictest28-21ksoftirqd/209:10:152
195969998,1cyclictest28-21ksoftirqd/208:00:132
195969997,1cyclictest28-21ksoftirqd/209:40:162
195969997,1cyclictest28-21ksoftirqd/207:15:002
195969994,1cyclictest28-21ksoftirqd/211:10:262
195969990,8cyclictest16505-21ssh12:01:532
195949997,1cyclictest9-21ksoftirqd/008:45:000
195949990,5cyclictest21181-21ssh10:45:010
195979988,0cyclictest35-21ksoftirqd/310:55:183
195979988,0cyclictest35-21ksoftirqd/310:20:193
195979987,1cyclictest35-21ksoftirqd/312:35:013
195979987,1cyclictest35-21ksoftirqd/312:15:003
195979987,1cyclictest35-21ksoftirqd/312:05:003
195979987,1cyclictest35-21ksoftirqd/311:14:593
195979987,1cyclictest35-21ksoftirqd/310:10:003
195979987,1cyclictest35-21ksoftirqd/309:00:123
195979987,1cyclictest35-21ksoftirqd/308:24:593
195979986,1cyclictest35-21ksoftirqd/310:00:143
195979985,1cyclictest35-21ksoftirqd/312:35:193
195979980,4cyclictest554-21dbus-daemon11:40:013
195969988,0cyclictest28-21ksoftirqd/211:18:012
195969987,1cyclictest28-21ksoftirqd/212:05:172
195969987,1cyclictest28-21ksoftirqd/211:01:402
195969987,1cyclictest28-21ksoftirqd/210:25:132
195969987,1cyclictest28-21ksoftirqd/210:05:112
195969987,1cyclictest28-21ksoftirqd/210:00:112
195969987,1cyclictest28-21ksoftirqd/209:00:172
195969987,1cyclictest0-21swapper/207:54:592
195969986,1cyclictest61650irq/122-eno110:34:082
195969986,1cyclictest61650irq/122-eno108:40:132
195969986,1cyclictest28-21ksoftirqd/212:15:182
195969986,1cyclictest28-21ksoftirqd/209:55:202
195969986,1cyclictest28-21ksoftirqd/207:45:132
195969985,2cyclictest0-21swapper/211:20:092
195969981,6cyclictest271rcuc/209:20:142
195959980,1cyclictest0-21swapper/112:13:021
195949986,1cyclictest9-21ksoftirqd/012:00:000
195949981,6cyclictest10135-21ssh11:55:000
195949981,1cyclictest3509-1kworker/u9:211:06:410
195949980,7cyclictest871-21ssh11:40:500
195949980,6cyclictest28241-21ssh09:29:590
195979977,0cyclictest35-21ksoftirqd/308:05:003
195979976,1cyclictest35-21ksoftirqd/312:30:013
195979976,1cyclictest35-21ksoftirqd/310:50:003
195979976,1cyclictest35-21ksoftirqd/310:00:003
195979976,1cyclictest35-21ksoftirqd/309:40:143
195979976,1cyclictest35-21ksoftirqd/308:10:013
195979976,1cyclictest35-21ksoftirqd/307:45:003
195979976,0cyclictest35-21ksoftirqd/311:30:143
195979975,1cyclictest8415-21ssh10:26:413
195979975,1cyclictest35-21ksoftirqd/308:50:143
195979975,1cyclictest35-21ksoftirqd/308:40:113
195979975,1cyclictest35-21ksoftirqd/308:20:003
195979975,1cyclictest29953-21ssh10:13:183
195979975,1cyclictest14136-21ssh11:16:153
195979974,2cyclictest35-21ksoftirqd/309:26:443
195979972,4cyclictest17617-21aten_r1power_cu10:40:133
195979972,3cyclictest693-21runrttasks10:37:043
195979972,3cyclictest29424-21apt-get12:20:123
195979971,6cyclictest12452-21diskmemload09:19:183
195979970,6cyclictest20603-21ssh12:07:403
195979970,6cyclictest12452-21diskmemload11:56:363
195979970,3cyclictest0-21swapper/311:00:113
195969977,0cyclictest28-21ksoftirqd/209:52:252
195969976,1cyclictest61650irq/122-eno111:31:592
195969976,1cyclictest61650irq/122-eno108:45:132
195969976,1cyclictest28-21ksoftirqd/209:35:122
195969976,1cyclictest28-21ksoftirqd/208:55:152
195969976,1cyclictest28-21ksoftirqd/208:30:192
195969976,1cyclictest28-21ksoftirqd/208:10:112
195969976,1cyclictest28-21ksoftirqd/207:30:112
195969976,1cyclictest1728-21kworker/2:210:40:162
195969976,1cyclictest1728-21kworker/2:209:15:142
195969975,1cyclictest61650irq/122-eno111:55:142
195969975,1cyclictest28-21ksoftirqd/212:25:202
195969975,1cyclictest28-21ksoftirqd/210:50:112
195969975,1cyclictest11944-21grep09:05:202
195969974,1cyclictest548-21systemd-logind08:25:192
195969973,2cyclictest240-21systemd-journal11:40:462
195969971,3cyclictest0-21swapper/210:35:112
195969970,3cyclictest0-21swapper/208:50:122
195969970,1cyclictest0-21swapper/210:14:122
195959970,6cyclictest0-21swapper/112:15:361
195959970,3cyclictest0-21swapper/109:35:011
195959970,3cyclictest0-21swapper/108:29:591
195959970,2cyclictest0-21swapper/111:15:131
195959970,1cyclictest0-21swapper/111:10:001
195949976,1cyclictest9-21ksoftirqd/008:05:110
195949976,1cyclictest27118-21cat08:30:170
195949976,1cyclictest2122-1kworker/u9:009:36:100
195949976,1cyclictest11492-1kworker/u9:011:25:090
195949973,3cyclictest12452-21diskmemload09:10:120
195949971,5cyclictest19238-21/usr/sbin/munin10:00:150
195949971,1cyclictest3193-1kworker/u9:212:31:480
195949971,1cyclictest20449-1kworker/u9:210:47:300
195949971,1cyclictest19246-21ssh12:05:160
195949970,6cyclictest8026-21ssh10:25:390
195949970,6cyclictest5150-21taskset10:23:120
195949970,6cyclictest29372-21ssh12:20:040
195949970,6cyclictest29169-21/usr/sbin/munin09:30:140
195949970,6cyclictest26693-21ssh10:50:180
195949970,6cyclictest23706-21ssh11:30:130
195949970,6cyclictest22552-21ssh09:20:410
195949970,6cyclictest20382-21sed08:15:200
195949970,6cyclictest0-21swapper/010:30:130
195949970,6cyclictest0-21swapper/008:50:190
195949970,6cyclictest0-21swapper/007:25:170
195949970,1cyclictest6524-21ssh09:42:260
195949970,1cyclictest32136-21ssh10:59:030
195949970,1cyclictest29609-21ssh10:12:210
195949970,1cyclictest27505-21ssh12:15:440
195949970,1cyclictest25237-21ssh10:05:540
195949970,1cyclictest240-21systemd-journal09:18:440
195949970,1cyclictest15782-21ssh11:20:030
195949970,1cyclictest15032-21ssh12:00:150
195949970,1cyclictest13887-21ssh11:15:330
195949970,1cyclictest13611-21ssh09:50:590
195949970,1cyclictest12452-21diskmemload11:37:320
195949970,1cyclictest0-21swapper/012:35:160
195949970,1cyclictest0-21swapper/007:40:160
195979965,1cyclictest35-21ksoftirqd/309:05:143
195979965,1cyclictest35-21ksoftirqd/308:35:123
195979965,1cyclictest35-21ksoftirqd/307:45:003
195979965,1cyclictest35-21ksoftirqd/307:30:003
195979965,1cyclictest24789-21kworker/3:111:41:093
195979965,1cyclictest22560-21ntpq10:45:193
195979965,1cyclictest22421-21ssh09:20:243
195979965,1cyclictest2062-21ssh09:35:383
195979965,1cyclictest1651-21ssh10:19:083
195979965,1cyclictest12169-21ssh10:31:313
195979965,0cyclictest35-21ksoftirqd/309:50:123
195979964,1cyclictest35-21ksoftirqd/308:35:003
195979964,1cyclictest26481-21cat12:15:163
195979962,3cyclictest6949-21apt-get07:50:113
195979962,2cyclictest548-21systemd-logind11:45:193
195979962,2cyclictest240-21systemd-journal09:49:443
195979961,2cyclictest24943-21proc_pri08:25:183
195979960,6cyclictest30955-21ssh09:31:473
195979960,4cyclictest12452-21diskmemload11:20:153
195979960,3cyclictest0-21swapper/311:50:013
195979960,2cyclictest0-21swapper/309:10:183
195979960,1cyclictest0-21swapper/311:09:223
195969966,0cyclictest61650irq/122-eno107:35:212
195969966,0cyclictest28-21ksoftirqd/211:50:172
195969966,0cyclictest28-21ksoftirqd/207:15:132
195969965,1cyclictest28-21ksoftirqd/211:25:132
195969964,1cyclictest28-21ksoftirqd/207:55:202
195969964,1cyclictest28-21ksoftirqd/207:55:192
195969964,1cyclictest1728-21kworker/2:210:45:172
195969961,1cyclictest27583-21apt-get07:25:112
195969960,1cyclictest0-21swapper/208:15:112
195959966,0cyclictest0-21swapper/109:21:521
195959965,1cyclictest0-21swapper/107:15:111
195959961,2cyclictest0-21swapper/111:45:231
195959961,2cyclictest0-21swapper/110:05:211
195959961,2cyclictest0-21swapper/108:45:101
195959961,2cyclictest0-21swapper/108:35:131
195959960,6cyclictest0-21swapper/111:42:441
195959960,6cyclictest0-21swapper/110:45:111
195959960,5cyclictest0-21swapper/111:55:161
195959960,4cyclictest0-21swapper/112:25:141
195959960,4cyclictest0-21swapper/108:15:121
195959960,3cyclictest0-21swapper/112:38:171
195959960,3cyclictest0-21swapper/112:30:191
195959960,3cyclictest0-21swapper/111:12:261
195959960,3cyclictest0-21swapper/110:37:491
195959960,3cyclictest0-21swapper/109:56:391
195959960,3cyclictest0-21swapper/107:45:121
195959960,2cyclictest0-21swapper/112:07:421
195959960,2cyclictest0-21swapper/111:31:481
195959960,2cyclictest0-21swapper/111:25:151
195959960,2cyclictest0-21swapper/111:20:521
195959960,1cyclictest0-21swapper/111:35:181
195959960,1cyclictest0-21swapper/110:41:351
195959960,1cyclictest0-21swapper/110:11:181
195959960,1cyclictest0-21swapper/109:32:381
195959960,1cyclictest0-21swapper/109:25:031
195959960,1cyclictest0-21swapper/109:16:011
195959960,1cyclictest0-21swapper/107:30:141
195959960,1cyclictest0-21swapper/107:10:161
195959960,0cyclictest0-21swapper/110:30:141
195959960,0cyclictest0-21swapper/110:16:351
195949965,1cyclictest2702-21ssh11:45:110
195949965,1cyclictest12831-21ntpq08:00:180
195949964,1cyclictest32286-21/usr/sbin/munin07:35:170
195949964,1cyclictest11217-21cat09:05:160
195949960,6cyclictest0-21swapper/011:10:090
195949960,5cyclictest0-21swapper/007:55:180
195949960,5cyclictest0-21swapper/007:55:170
195949960,2cyclictest12452-21diskmemload12:25:150
195949960,1cyclictest15465-21ssh09:55:130
195949960,1cyclictest0-21swapper/008:25:110
195949960,0cyclictest0-21swapper/010:35:090
195949960,0cyclictest0-21swapper/010:15:210
195949960,0cyclictest0-21swapper/008:35:120
195949960,0cyclictest0-21swapper/008:24:450
195979955,0cyclictest0-21swapper/308:10:183
195979954,1cyclictest749-21cat07:35:163
195979952,2cyclictest12452-21diskmemload11:25:103
195979950,0cyclictest0-21swapper/307:34:433
195979950,0cyclictest0-21swapper/307:13:053
195969953,0cyclictest2243-21apt-get07:40:112
195959951,3cyclictest0-21swapper/109:41:051
195959951,1cyclictest0-21swapper/108:55:221
195959951,1cyclictest0-21swapper/107:35:121
195959950,5cyclictest0-21swapper/110:56:211
195959950,5cyclictest0-21swapper/109:13:071
195959950,5cyclictest0-21swapper/109:06:021
195959950,5cyclictest0-21swapper/108:54:111
195959950,5cyclictest0-21swapper/108:33:491
195959950,5cyclictest0-21swapper/108:02:301
195959950,2cyclictest0-21swapper/112:20:381
195959950,2cyclictest0-21swapper/111:50:541
195959950,2cyclictest0-21swapper/111:01:111
195959950,2cyclictest0-21swapper/110:26:561
195959950,2cyclictest0-21swapper/110:20:101
195959950,2cyclictest0-21swapper/110:00:091
195959950,2cyclictest0-21swapper/109:47:341
195959950,2cyclictest0-21swapper/107:55:151
195959950,2cyclictest0-21swapper/107:55:151
195959950,1cyclictest0-21swapper/109:51:251
195959950,1cyclictest0-21swapper/108:40:101
195959950,0cyclictest0-21swapper/109:03:181
195959950,0cyclictest0-21swapper/108:11:541
195949954,1cyclictest4674-21chrt07:45:130
195949952,1cyclictest19809-21apt-get07:10:100
195949951,4cyclictest25385-21telnet07:20:130
195949950,5cyclictest0-21swapper/008:55:130
195949950,4cyclictest879-21/usr/sbin/munin08:45:110
195949950,2cyclictest548-21systemd-logind07:15:010
195949950,0cyclictest0-21swapper/009:00:110
195979942,1cyclictest25919-21fschecks_time07:20:153
195979940,1cyclictest240-21systemd-journal08:55:133
195959942,1cyclictest0-21swapper/107:25:001
195959941,2cyclictest0-21swapper/107:25:111
195959940,2cyclictest0-21swapper/112:00:181
195959940,1cyclictest0-21swapper/108:20:161
195959940,1cyclictest0-21swapper/108:05:141
195959940,1cyclictest0-21swapper/107:50:131
195959940,1cyclictest0-21swapper/107:40:121
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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