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2026-05-19 - 15:58
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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 Tue May 19, 2026 12:45:14)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
164322233159,24sleep00-21swapper/007:09:120
163152217153,51sleep20-21swapper/207:07:422
162812198158,26sleep30-21swapper/307:07:153
162792198161,24sleep10-21swapper/107:07:131
40972590,0sleep20-21swapper/209:43:422
20042570,0sleep30-21swapper/312:34:353
117932150,0sleep20-21swapper/209:54:222
16577991311,1cyclictest9-21ksoftirqd/009:35:000
16577991210,1cyclictest9-21ksoftirqd/007:50:000
1660699111,7cyclictest4329-21apt-get07:50:123
1660699111,5cyclictest6606-21timerwakeupswit11:55:223
1657799113,4cyclictest28206-21latency_hist11:00:010
1657799113,4cyclictest14616-21cat11:24:590
1659799106,1cyclictest28-21ksoftirqd/207:52:522
1659799104,3cyclictest1308-21which11:05:202
1657799109,1cyclictest9-21ksoftirqd/010:45:010
1657799108,1cyclictest9-21ksoftirqd/011:40:130
5444290,0sleep30-21swapper/310:29:123
166069997,1cyclictest35-21ksoftirqd/311:35:013
166069990,2cyclictest0-21swapper/311:05:133
165979998,1cyclictest16568-21cyclictest10:15:232
165859991,3cyclictest21-21ksoftirqd/112:13:241
165859990,0cyclictest0-21swapper/110:30:091
165779998,1cyclictest9-21ksoftirqd/011:35:010
165779997,1cyclictest9-21ksoftirqd/008:50:000
165779997,1cyclictest9-21ksoftirqd/008:35:000
165779991,4cyclictest30103-21perf08:44:590
165779991,4cyclictest0-21swapper/007:50:130
165779990,2cyclictest0-21swapper/009:27:150
165779990,1cyclictest240-21systemd-journal10:01:400
166069986,1cyclictest2464-21apt-get12:35:143
165979986,1cyclictest61650irq/122-eno112:25:192
165979986,1cyclictest61650irq/122-eno111:00:142
165979986,1cyclictest61650irq/122-eno110:21:292
165979986,1cyclictest61650irq/122-eno109:57:112
165979986,1cyclictest61650irq/122-eno109:30:202
165979986,1cyclictest61650irq/122-eno107:10:142
165979986,1cyclictest4729-21perf11:54:592
165979986,1cyclictest16568-21cyclictest09:37:542
165979985,2cyclictest20632-21fschecks_time12:15:152
165979981,1cyclictest9887-21apt-get09:10:122
165979980,3cyclictest20956-21apt-get10:50:122
165979980,0cyclictest0-21swapper/209:47:162
165779987,1cyclictest9-21ksoftirqd/011:10:150
165779987,1cyclictest9-21ksoftirqd/010:50:000
165779987,1cyclictest1-21systemd09:02:510
165779986,1cyclictest9-21ksoftirqd/010:25:000
165779986,1cyclictest9-21ksoftirqd/009:35:120
165779986,1cyclictest8443-21cron11:59:590
165779985,1cyclictest240-21systemd-journal10:55:010
165779983,1cyclictest6008-21/usr/sbin/munin10:30:130
165779981,6cyclictest2332-21ssh09:40:180
165779980,7cyclictest18460-21ssh12:11:380
165779980,7cyclictest18298-21ssh09:20:120
165779980,2cyclictest0-21swapper/010:35:130
165779980,1cyclictest25870-21ssh10:11:580
166069977,0cyclictest9634-21diskmemload10:40:143
166069976,1cyclictest35-21ksoftirqd/309:19:423
166069976,0cyclictest35-21ksoftirqd/307:44:593
166069973,2cyclictest9634-21diskmemload09:56:103
166069971,3cyclictest0-21swapper/309:47:513
166069971,2cyclictest0-21swapper/311:35:573
166069970,5cyclictest0-21swapper/312:17:263
166069970,4cyclictest24762-21apt-get07:25:123
166069970,4cyclictest0-21swapper/309:22:023
166069970,3cyclictest27440-21ntp_states11:40:183
166069970,3cyclictest0-21swapper/311:18:593
166069970,2cyclictest8754-21apt-get12:00:133
166069970,2cyclictest0-21swapper/310:50:113
166069970,1cyclictest240-21systemd-journal08:29:543
165979977,0cyclictest0-21swapper/207:45:122
165979976,1cyclictest61650irq/122-eno112:00:122
165979976,1cyclictest61650irq/122-eno111:20:132
165979976,1cyclictest61650irq/122-eno110:05:012
165979975,1cyclictest7123-21grep10:30:162
165979975,1cyclictest61650irq/122-eno112:22:452
165979975,1cyclictest61650irq/122-eno111:55:142
165979975,1cyclictest61650irq/122-eno111:45:142
165979975,1cyclictest61650irq/122-eno111:40:142
165979975,1cyclictest61650irq/122-eno111:35:182
165979975,1cyclictest61650irq/122-eno110:55:202
165979975,1cyclictest61650irq/122-eno109:25:112
165979975,1cyclictest60802sleep211:12:142
165979975,1cyclictest4347-21ssh12:35:382
165979975,1cyclictest30057-21cron08:45:002
165979975,1cyclictest26222-21ssh10:12:592
165979974,1cyclictest61650irq/122-eno111:17:262
165979971,5cyclictest571-21nscd12:33:172
165979970,5cyclictest9634-21diskmemload09:20:142
165979970,4cyclictest30290-21apt-get08:45:102
165979970,4cyclictest17232-21apt-get10:45:112
165979970,2cyclictest0-21swapper/208:20:112
165979970,1cyclictest0-21swapper/210:35:132
165859971,3cyclictest0-21swapper/112:05:111
165859970,6cyclictest0-21swapper/109:25:111
165859970,6cyclictest0-21swapper/108:38:161
165859970,5cyclictest0-21swapper/110:40:201
165859970,4cyclictest0-21swapper/112:30:121
165859970,4cyclictest0-21swapper/107:41:111
165859970,3cyclictest0-21swapper/109:40:491
165859970,3cyclictest0-21swapper/109:30:111
165779976,1cyclictest9-21ksoftirqd/007:20:000
165779975,1cyclictest19636-21ntpq08:20:170
165779975,1cyclictest12848-21sed08:05:180
165779975,0cyclictest9634-21diskmemload12:20:370
165779971,5cyclictest15087-21ssh11:25:130
165779971,4cyclictest7364-21/usr/sbin/munin11:15:130
165779971,1cyclictest9634-21diskmemload11:05:100
165779970,7cyclictest0-21swapper/012:01:550
165779970,7cyclictest0-21swapper/009:12:520
165779970,6cyclictest30528-21ssh11:01:160
165779970,6cyclictest23422-21ssh11:35:130
165779970,6cyclictest16589-21ssh09:18:000
165779970,6cyclictest13775-21switchtime09:55:200
165779970,6cyclictest10291-21sed09:50:200
165779970,4cyclictest16117-21apt-get08:15:130
165779970,1cyclictest9634-21diskmemload12:35:240
165779970,1cyclictest891-21ssh12:31:270
165779970,1cyclictest14400-21ssh12:05:460
165779970,1cyclictest0-21swapper/011:50:170
165779970,1cyclictest0-21swapper/008:10:210
165779970,1cyclictest0-21swapper/007:40:090
165779970,0cyclictest0-21swapper/008:39:040
5575260,0sleep10-21swapper/107:50:191
166069965,1cyclictest31183-21ssh11:45:173
166069965,1cyclictest29566-21ssh10:16:543
166069965,1cyclictest26544-21ssh10:55:373
166069965,1cyclictest22595-21ssh10:08:163
166069965,1cyclictest1812-21ssh11:50:133
166069965,1cyclictest16176-21ssh12:10:063
166069965,1cyclictest16031-21ssh11:25:173
166069965,1cyclictest11873-21ssh09:10:573
166069965,1cyclictest11712-21ssh09:54:083
166069964,1cyclictest4438-21gltestperf11:10:153
166069964,1cyclictest13764-21apt-get08:10:123
166069964,0cyclictest9634-21diskmemload10:11:183
166069963,3cyclictest6680-21apt-get07:55:113
166069963,1cyclictest240-21systemd-journal07:14:553
166069962,3cyclictest9742-21apt-get10:35:123
166069962,3cyclictest17028-21irqstats08:15:173
166069962,1cyclictest240-21systemd-journal10:50:003
166069961,4cyclictest11179-21idleruntime-cro08:05:013
166069961,1cyclictest27473-21ssh09:30:273
166069960,5cyclictest0-21swapper/310:01:103
166069960,4cyclictest31016-21grep08:45:143
166069960,3cyclictest0-21swapper/312:20:593
166069960,3cyclictest0-21swapper/309:36:273
166069960,3cyclictest0-21swapper/309:25:113
166069960,2cyclictest0-21swapper/310:22:433
166069960,1cyclictest240-21systemd-journal10:34:593
166069960,1cyclictest240-21systemd-journal07:15:013
166069960,1cyclictest11120-21apt-get11:20:113
165979966,0cyclictest61650irq/122-eno112:10:232
165979966,0cyclictest61650irq/122-eno111:30:372
165979966,0cyclictest61650irq/122-eno111:25:182
165979966,0cyclictest61650irq/122-eno110:40:012
165979966,0cyclictest61650irq/122-eno110:25:052
165979966,0cyclictest61650irq/122-eno108:09:002
165979966,0cyclictest61650irq/122-eno107:35:202
165979966,0cyclictest61650irq/122-eno107:20:162
165979965,1cyclictest61650irq/122-eno108:35:112
165979965,1cyclictest61650irq/122-eno107:30:132
165979965,1cyclictest3745-21ntpq08:55:212
165979964,1cyclictest61650irq/122-eno110:00:052
165979964,1cyclictest61650irq/122-eno108:50:122
165979964,1cyclictest61650irq/122-eno108:15:142
165979964,1cyclictest61650irq/122-eno107:55:132
165979964,1cyclictest28-21ksoftirqd/208:10:462
165979964,1cyclictest0-21swapper/208:30:142
165979962,3cyclictest21953-21dump-pmu-power07:20:002
165979960,4cyclictest0-21swapper/209:15:062
165979960,3cyclictest0-21swapper/209:05:112
165979960,1cyclictest0-21swapper/212:05:102
165979960,1cyclictest0-21swapper/209:00:152
165859961,4cyclictest0-21swapper/109:20:101
165859961,2cyclictest0-21swapper/111:48:041
165859960,6cyclictest0-21swapper/112:22:111
165859960,6cyclictest0-21swapper/109:11:541
165859960,6cyclictest0-21swapper/109:00:421
165859960,6cyclictest0-21swapper/108:27:051
165859960,5cyclictest0-21swapper/107:20:171
165859960,4cyclictest0-21swapper/110:56:241
165859960,4cyclictest0-21swapper/108:50:201
165859960,3cyclictest0-21swapper/110:36:481
165859960,3cyclictest0-21swapper/109:51:081
165859960,2cyclictest0-21swapper/110:00:111
165859960,2cyclictest0-21swapper/109:47:381
165779965,1cyclictest30022-21ssh11:45:110
165779965,1cyclictest26043-1kworker/u9:012:26:160
165779965,1cyclictest18936-21munin-node08:50:100
165779965,0cyclictest9-21ksoftirqd/008:25:140
165779961,1cyclictest24759-21/usr/sbin/munin07:25:200
165779960,6cyclictest0-21swapper/010:25:010
165779960,6cyclictest0-21swapper/008:55:130
165779960,1cyclictest6657-21ssh09:45:230
165779960,1cyclictest19954-21apt-get12:15:120
165779960,0cyclictest0-21swapper/010:15:020
165779960,0cyclictest0-21swapper/010:05:400
165779960,0cyclictest0-21swapper/009:06:090
165779960,0cyclictest0-21swapper/007:58:070
165779960,0cyclictest0-21swapper/007:35:200
165779960,0cyclictest0-21swapper/007:11:420
21273250,0sleep10-21swapper/110:05:191
166069955,0cyclictest0-21swapper/308:43:573
166069954,1cyclictest26452-21cat08:35:163
166069954,1cyclictest25333-21dump-pmu-power08:34:593
166069953,1cyclictest5151-21apt-get09:00:133
166069953,1cyclictest28433-21apt-get11:00:133
166069953,1cyclictest1751-21tune2fs09:40:133
166069951,2cyclictest28868-21taskset07:30:283
166069950,5cyclictest0-21swapper/308:08:243
166069950,3cyclictest0-21swapper/312:05:323
166069950,3cyclictest0-21swapper/308:50:153
166069950,2cyclictest27742-21cat12:25:123
166069950,1cyclictest18500-21apt-get08:20:123
166069950,0cyclictest0-21swapper/308:55:333
166069950,0cyclictest0-21swapper/307:48:173
165979954,1cyclictest61650irq/122-eno108:00:122
165979950,4cyclictest0-21swapper/207:40:102
165979950,2cyclictest240-21systemd-journal08:30:002
165979950,1cyclictest0-21swapper/207:25:132
165859955,0cyclictest0-21swapper/111:22:441
165859953,1cyclictest232212sleep108:30:111
165859952,3cyclictest0-21swapper/110:45:201
165859951,4cyclictest0-21swapper/109:56:381
165859951,3cyclictest0-21swapper/111:10:111
165859950,5cyclictest0-21swapper/111:40:551
165859950,5cyclictest0-21swapper/111:31:291
165859950,5cyclictest0-21swapper/111:27:061
165859950,5cyclictest0-21swapper/111:15:011
165859950,5cyclictest0-21swapper/110:16:061
165859950,5cyclictest0-21swapper/109:37:501
165859950,5cyclictest0-21swapper/107:31:061
165859950,3cyclictest0-21swapper/110:14:471
165859950,3cyclictest0-21swapper/109:15:201
165859950,2cyclictest0-21swapper/112:27:021
165859950,2cyclictest0-21swapper/112:18:051
165859950,2cyclictest0-21swapper/112:00:111
165859950,2cyclictest0-21swapper/111:55:231
165859950,2cyclictest0-21swapper/111:50:181
165859950,2cyclictest0-21swapper/110:53:221
165859950,2cyclictest0-21swapper/110:20:231
165859950,2cyclictest0-21swapper/108:45:111
165859950,2cyclictest0-21swapper/108:15:121
165859950,2cyclictest0-21swapper/107:25:121
165859950,0cyclictest0-21swapper/111:09:591
165779952,1cyclictest240-21systemd-journal08:04:070
165779950,0cyclictest0-21swapper/007:30:120
165779950,0cyclictest0-21swapper/007:15:010
166069942,1cyclictest7500-21/usr/sbin/munin09:05:203
166069942,1cyclictest30018-21fschecks_count07:35:143
166069940,1cyclictest240-21systemd-journal07:20:013
165859944,0cyclictest0-21swapper/108:59:171
165859943,1cyclictest299102sleep108:43:201
165859942,1cyclictest0-21swapper/107:35:191
165859941,1cyclictest0-21swapper/111:00:131
165859940,4cyclictest203-21jbd2/sda2-809:05:071
165859940,4cyclictest0-21swapper/108:04:411
165859940,3cyclictest0-21swapper/111:35:131
165859940,3cyclictest0-21swapper/107:47:041
165859940,2cyclictest0-21swapper/112:37:481
165859940,1cyclictest0-21swapper/110:26:151
165859940,0cyclictest0-21swapper/108:20:201
165859940,0cyclictest0-21swapper/108:10:201
165859940,0cyclictest0-21swapper/108:05:101
165859940,0cyclictest0-21swapper/107:14:391
165859933,0cyclictest0-21swapper/107:55:101
165859930,3cyclictest0-21swapper/107:15:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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