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2026-04-17 - 01:18
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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 Thu Apr 16, 2026 12:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3066125580,11sleep121-21ksoftirqd/107:05:231
3066125580,11sleep121-21ksoftirqd/107:05:231
308292222143,64sleep00-21swapper/007:05:510
308292222143,64sleep00-21swapper/007:05:510
290372208151,45sleep20-21swapper/207:05:052
290372208151,45sleep20-21swapper/207:05:052
310702201161,26sleep30-21swapper/307:09:013
310702201161,26sleep30-21swapper/307:09:003
7072630,0sleep30-21swapper/311:26:313
38992240,0sleep10-21swapper/108:25:141
178252180,0sleep00-21swapper/009:41:030
3124899130,0cyclictest0-21swapper/010:00:100
31262991211,1cyclictest0-21swapper/212:20:202
3124899123,4cyclictest30595-21date08:15:000
3126299119,1cyclictest0-21swapper/210:17:502
3126299115,4cyclictest28-21ksoftirqd/208:24:592
31262991110,1cyclictest0-21swapper/209:58:092
3127399108,1cyclictest35-21ksoftirqd/311:00:003
3126299109,1cyclictest0-21swapper/212:17:352
3126299109,1cyclictest0-21swapper/210:57:142
3126299109,1cyclictest0-21swapper/210:50:272
3126299108,1cyclictest28-21ksoftirqd/207:25:002
3126299105,4cyclictest0-21swapper/209:17:372
3126299104,0cyclictest61650irq/122-eno109:45:082
3126299101,8cyclictest557-21irqbalance11:07:162
3124899103,6cyclictest9627-21grep11:40:000
3124899103,4cyclictest13401-21perf10:20:010
312739998,1cyclictest35-21ksoftirqd/312:20:133
312739997,1cyclictest35-21ksoftirqd/307:40:003
312739990,1cyclictest0-21swapper/308:10:113
312629998,1cyclictest0-21swapper/212:33:082
312629998,1cyclictest0-21swapper/212:28:592
312629998,1cyclictest0-21swapper/211:16:162
312629998,1cyclictest0-21swapper/211:14:052
312629998,1cyclictest0-21swapper/210:32:202
312629998,1cyclictest0-21swapper/210:26:442
312629998,1cyclictest0-21swapper/210:11:542
312629997,1cyclictest28-21ksoftirqd/207:24:592
312629996,3cyclictest0-21swapper/208:45:142
312629996,2cyclictest0-21swapper/212:37:512
312629995,4cyclictest0-21swapper/209:37:252
312629990,8cyclictest0-21swapper/212:10:292
312629990,7cyclictest18990-21apt-get07:50:102
312489993,5cyclictest14668-21memory10:20:150
312489992,4cyclictest14630-21latency11:45:160
312489991,4cyclictest4250-21sed07:20:010
312489990,4cyclictest2047-21perf11:30:000
312489990,4cyclictest14654-21munin-run08:50:010
312739987,1cyclictest35-21ksoftirqd/308:55:003
312739986,2cyclictest1747-21ntpd12:05:433
312739982,3cyclictest240-21systemd-journal10:17:393
312629988,0cyclictest0-21swapper/209:27:342
312629987,1cyclictest0-21swapper/211:52:112
312629987,1cyclictest0-21swapper/211:39:532
312629987,1cyclictest0-21swapper/210:08:382
312629986,1cyclictest61650irq/122-eno110:20:112
312629986,1cyclictest61650irq/122-eno109:20:202
312629986,1cyclictest23892-21sh11:57:432
312629985,2cyclictest0-21swapper/211:28:092
312629982,4cyclictest24289-21diskmemload10:45:142
312629980,5cyclictest24289-21diskmemload09:10:112
312629980,5cyclictest0-21swapper/211:21:132
312629980,5cyclictest0-21swapper/209:54:132
312629980,3cyclictest0-21swapper/210:36:312
312489988,0cyclictest151772sleep009:39:150
312489987,1cyclictest16221-21ssh11:05:140
312489987,1cyclictest10937-21ssh09:33:100
312489986,1cyclictest9-21ksoftirqd/007:35:000
312489986,1cyclictest7014-21ssh12:18:390
312489981,6cyclictest915-1kworker/u9:210:05:410
312489980,7cyclictest27007-21ssh10:35:460
312489980,6cyclictest0-21swapper/012:00:450
19269287,0sleep10-21swapper/111:50:251
312739975,2cyclictest1747-21ntpd10:34:543
312739975,1cyclictest5143-21ssh10:08:053
312739975,1cyclictest4168-21/usr/sbin/munin09:25:113
312739975,1cyclictest35-21ksoftirqd/308:20:003
312739975,1cyclictest18103-21ssh09:41:503
312739975,1cyclictest16751-21ssh11:48:523
312739973,3cyclictest0-21swapper/311:05:153
312739973,2cyclictest240-21systemd-journal08:48:523
312739973,1cyclictest24289-21diskmemload09:17:563
312739971,3cyclictest13641-21apt-get10:20:113
312739970,3cyclictest0-21swapper/310:40:353
312629977,0cyclictest0-21swapper/207:55:402
312629976,1cyclictest61650irq/122-eno112:05:122
312629976,1cyclictest61650irq/122-eno111:03:562
312629976,1cyclictest61650irq/122-eno109:44:372
312629976,1cyclictest61650irq/122-eno108:50:212
312629976,1cyclictest0-21swapper/211:44:022
312629976,1cyclictest0-21swapper/210:40:462
312629975,1cyclictest61650irq/122-eno108:30:132
312629975,1cyclictest28-21ksoftirqd/207:35:002
312629974,2cyclictest30957-21apt-get10:00:102
312629974,2cyclictest16209-21perf07:45:002
312629974,1cyclictest61650irq/122-eno111:45:112
312629973,2cyclictest61650irq/122-eno109:05:162
312629970,6cyclictest0-21swapper/209:30:052
312629970,2cyclictest19565-21sh09:00:002
312559970,6cyclictest0-21swapper/108:15:161
312559970,5cyclictest0-21swapper/110:25:191
312489976,1cyclictest6019-21ssh09:25:300
312489976,1cyclictest21740-1kworker/u9:209:56:280
312489976,1cyclictest1625-21cat08:20:150
312489976,1cyclictest14148-21ssh11:01:370
312489976,1cyclictest11170-21ssh12:24:340
312489975,1cyclictest4265-21ssh11:30:530
312489975,1cyclictest23285-21ssh11:15:090
312489975,1cyclictest17456-21apt-get10:25:110
312489975,1cyclictest11344-21ntpq08:40:170
312489973,1cyclictest548-21systemd-logind12:25:170
312489971,5cyclictest17559-21telnet11:50:120
312489970,7cyclictest24289-21diskmemload10:55:130
312489970,7cyclictest0-21swapper/010:33:170
312489970,6cyclictest29509-21fschecks_time10:40:140
312489970,6cyclictest2575-21ssh12:11:560
312489970,6cyclictest24289-21diskmemload11:10:170
312489970,6cyclictest20953-21sed12:35:210
312489970,6cyclictest0-21swapper/010:10:140
312489970,6cyclictest0-21swapper/009:50:380
312489970,6cyclictest0-21swapper/009:15:150
312489970,6cyclictest0-21swapper/009:10:120
312489970,6cyclictest0-21swapper/009:05:150
312489970,1cyclictest29377-21fschecks_count12:05:140
312489970,1cyclictest24289-21diskmemload12:30:220
312489970,1cyclictest2372-21ssh09:21:230
312489970,1cyclictest0-21swapper/009:45:080
312489970,1cyclictest0-21swapper/007:55:170
26181270,0sleep30-21swapper/309:53:123
312739965,1cyclictest6242-21ssh12:16:353
312739965,1cyclictest35-21ksoftirqd/311:50:133
312739965,1cyclictest32648-21ssh10:45:073
312739965,1cyclictest3185-21ssh12:13:363
312739965,1cyclictest23053-21ssh11:55:243
312739965,1cyclictest21928-21ssh09:46:543
312739965,1cyclictest15247-21ntpq07:40:163
312739965,1cyclictest14063-21ssh12:27:103
312739965,1cyclictest13776-21ssh09:35:283
312739965,1cyclictest11728-21ssh11:40:293
312739964,1cyclictest5538-21netstat07:20:153
312739964,1cyclictest27355-21ssh12:01:453
312739964,1cyclictest24590-21cat08:00:153
312739964,1cyclictest24590-21cat08:00:143
312739964,1cyclictest24289-21diskmemload10:52:373
312739964,1cyclictest23818-21ssh11:15:133
312739964,1cyclictest16169-21grep12:30:143
312739963,1cyclictest35-21ksoftirqd/307:25:063
312739963,1cyclictest240-21systemd-journal11:37:413
312739961,4cyclictest554-21dbus-daemon11:30:193
312739961,4cyclictest19550-21dump-pmu-power09:00:013
312739961,2cyclictest24289-21diskmemload12:38:573
312739961,2cyclictest12623-21gltestperf11:00:153
312739961,1cyclictest28623-21switchtime11:20:213
312739961,1cyclictest0-21swapper/310:25:123
312739961,1cyclictest0-21swapper/309:55:113
312739960,6cyclictest24289-21diskmemload09:30:573
312739960,4cyclictest0-21swapper/310:35:283
312739960,4cyclictest0-21swapper/310:01:413
312739960,3cyclictest0-21swapper/309:13:253
312739960,2cyclictest0-21swapper/309:20:283
312739960,1cyclictest0-21swapper/307:50:113
312739960,0cyclictest24289-21diskmemload11:11:363
312629966,0cyclictest61650irq/122-eno112:00:182
312629966,0cyclictest61650irq/122-eno108:10:112
312629965,0cyclictest61650irq/122-eno107:35:172
312629964,1cyclictest30776-21apt-get08:15:112
312629964,1cyclictest25366-21unixbench_multi08:00:192
312629964,1cyclictest25366-21unixbench_multi08:00:192
312629964,1cyclictest16621-21apt-get07:45:012
312629963,2cyclictest26570-21/usr/sbin/munin08:05:152
312629963,2cyclictest19829-21aten2.4-expect09:00:092
312629960,6cyclictest0-21swapper/208:35:152
312629960,5cyclictest0-21swapper/207:15:132
312629960,2cyclictest3103-21hddtemp_smartct11:30:152
312559966,0cyclictest0-21swapper/111:55:111
312559961,3cyclictest0-21swapper/110:15:221
312559961,2cyclictest0-21swapper/107:24:591
312559961,1cyclictest0-21swapper/108:05:191
312559960,6cyclictest0-21swapper/108:10:021
312559960,4cyclictest0-21swapper/107:50:111
312559960,2cyclictest0-21swapper/110:45:121
312559960,0cyclictest0-21swapper/112:25:291
312489965,1cyclictest11087-21ntpq11:40:180
312489964,1cyclictest15713-21unixbench_multi07:40:200
312489964,1cyclictest12493-21gltestperf07:35:160
312489963,1cyclictest240-21systemd-journal08:10:000
312489963,1cyclictest240-21systemd-journal07:50:210
312489961,4cyclictest1124-21cron07:15:000
312489960,6cyclictest24045-1kworker/u9:110:46:040
312489960,6cyclictest0-21swapper/007:25:150
312489960,1cyclictest0-21swapper/008:35:160
312489960,0cyclictest0-21swapper/011:55:040
312489960,0cyclictest0-21swapper/011:20:180
312489960,0cyclictest0-21swapper/010:50:060
312489960,0cyclictest0-21swapper/008:50:130
312489960,0cyclictest0-21swapper/008:00:180
312489960,0cyclictest0-21swapper/008:00:180
312489960,0cyclictest0-21swapper/007:49:550
312489960,0cyclictest0-21swapper/007:23:390
312739954,1cyclictest35-21ksoftirqd/307:48:363
312739954,0cyclictest0-21swapper/309:05:123
312739953,1cyclictest21918-21turbostat.cron09:05:003
312739953,1cyclictest10752-21sensors_temp07:30:183
312739953,1cyclictest0-21swapper/308:20:113
312739952,1cyclictest7801-21apt-get08:35:123
312739952,1cyclictest31439-21apt-get07:10:103
312739951,2cyclictest0-21swapper/307:15:143
312739950,5cyclictest0-21swapper/308:33:523
312739950,4cyclictest10162-21chrt08:40:023
312739950,3cyclictest0-21swapper/310:10:553
312629955,0cyclictest61650irq/122-eno107:10:112
312629953,1cyclictest693-21runrttasks08:25:122
312629950,1cyclictest0-21swapper/208:40:122
312559955,0cyclictest0-21swapper/112:10:471
312559955,0cyclictest0-21swapper/111:30:581
312559955,0cyclictest0-21swapper/111:10:281
312559955,0cyclictest0-21swapper/110:10:021
312559955,0cyclictest0-21swapper/109:25:271
312559955,0cyclictest0-21swapper/109:15:481
312559953,1cyclictest0-21swapper/112:15:101
312559951,3cyclictest0-21swapper/109:50:091
312559951,2cyclictest0-21swapper/112:31:051
312559950,5cyclictest0-21swapper/109:38:441
312559950,5cyclictest0-21swapper/108:32:231
312559950,4cyclictest0-21swapper/111:02:331
312559950,4cyclictest0-21swapper/110:52:311
312559950,4cyclictest0-21swapper/110:39:481
312559950,3cyclictest0-21swapper/111:08:081
312559950,3cyclictest0-21swapper/110:57:211
312559950,3cyclictest0-21swapper/110:33:291
312559950,3cyclictest0-21swapper/109:56:111
312559950,3cyclictest0-21swapper/109:45:451
312559950,3cyclictest0-21swapper/109:31:111
312559950,3cyclictest0-21swapper/109:11:221
312559950,3cyclictest0-21swapper/109:00:171
312559950,3cyclictest0-21swapper/107:35:001
312559950,2cyclictest0-21swapper/112:00:141
312559950,2cyclictest0-21swapper/111:45:121
312559950,2cyclictest0-21swapper/111:40:151
312559950,2cyclictest0-21swapper/110:00:121
312559950,2cyclictest0-21swapper/108:40:121
312559950,1cyclictest0-21swapper/112:36:341
312559950,1cyclictest0-21swapper/110:06:471
312559950,1cyclictest0-21swapper/109:40:201
312559950,1cyclictest0-21swapper/108:45:111
312559950,1cyclictest0-21swapper/107:15:191
312559950,0cyclictest0-21swapper/112:08:521
312559950,0cyclictest0-21swapper/111:20:211
312559950,0cyclictest0-21swapper/111:19:061
312489950,5cyclictest0-21swapper/009:02:040
312489950,5cyclictest0-21swapper/008:25:010
312489950,4cyclictest31581-21sed08:15:140
312489950,4cyclictest17430-21/usr/sbin/munin08:55:130
15363250,0sleep10-21swapper/108:50:131
312739943,1cyclictest26068-21/usr/sbin/munin08:05:133
312739942,1cyclictest21505-21cpu07:55:143
312739941,2cyclictest3093-21apt-get08:25:113
312559944,0cyclictest0-21swapper/107:56:001
312559941,2cyclictest0-21swapper/107:25:101
312559941,1cyclictest0-21swapper/108:00:131
312559941,1cyclictest0-21swapper/108:00:131
312559940,4cyclictest0-21swapper/108:40:001
312559940,4cyclictest0-21swapper/107:11:171
312559940,3cyclictest0-21swapper/112:20:221
312559940,2cyclictest0-21swapper/110:23:261
312559940,2cyclictest0-21swapper/108:55:011
312559940,2cyclictest0-21swapper/108:20:131
312559940,2cyclictest0-21swapper/107:40:001
312559940,1cyclictest0-21swapper/111:35:151
312559940,1cyclictest0-21swapper/110:40:501
312559940,1cyclictest0-21swapper/109:22:051
312559940,0cyclictest0-21swapper/111:25:201
312489940,4cyclictest0-21swapper/008:30:140
312559932,1cyclictest158242sleep107:40:211
312559930,3cyclictest0-21swapper/109:05:581
312559930,2cyclictest0-21swapper/107:45:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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