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2026-08-04 - 16:13
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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 Tue Aug 04, 2026 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
174172212149,20sleep00-21swapper/007:06:470
174002208153,42sleep30-21swapper/307:06:343
173732201152,37sleep10-21swapper/107:06:121
174292198159,25sleep20-21swapper/207:06:582
311732130,6sleep335-21ksoftirqd/308:45:113
135392130,0sleep10-21swapper/111:30:141
314592120,0sleep20-21swapper/209:38:252
314592120,0sleep20-21swapper/209:38:242
1776899121,10cyclictest0-21swapper/208:30:172
17754991210,1cyclictest9-21ksoftirqd/010:45:000
17754991210,1cyclictest9-21ksoftirqd/007:20:000
194002110,0sleep00-21swapper/008:20:140
1776899119,1cyclictest28-21ksoftirqd/208:55:012
1776899110,11cyclictest0-21swapper/210:30:192
1776899110,11cyclictest0-21swapper/210:30:192
1775499119,1cyclictest9-21ksoftirqd/009:00:000
17754991110,1cyclictest9-21ksoftirqd/012:40:000
17754991110,1cyclictest9-21ksoftirqd/011:35:000
266962100,0sleep20-21swapper/210:16:502
219342100,0sleep20-21swapper/211:40:452
1776199102,7cyclictest0-21swapper/112:13:491
1775499109,1cyclictest9-21ksoftirqd/010:55:000
1775499109,1cyclictest9-21ksoftirqd/010:40:000
1775499109,1cyclictest32552-21cron07:40:000
1775499108,1cyclictest9-21ksoftirqd/010:45:140
1775499101,8cyclictest10402-21diskmemload10:10:150
177689994,2cyclictest240-21systemd-journal10:40:002
177689990,4cyclictest0-21swapper/208:15:122
177689990,1cyclictest0-21swapper/210:43:372
177549999,0cyclictest9-21ksoftirqd/012:34:370
177549999,0cyclictest9-21ksoftirqd/012:00:190
177549998,1cyclictest9-21ksoftirqd/012:20:000
177549998,1cyclictest9-21ksoftirqd/012:10:190
177549998,1cyclictest9-21ksoftirqd/009:50:170
177549997,1cyclictest9-21ksoftirqd/011:10:000
177549997,1cyclictest9-21ksoftirqd/010:30:120
177549997,1cyclictest9-21ksoftirqd/010:30:110
177549992,1cyclictest9-21ksoftirqd/010:25:140
177549992,1cyclictest240-21systemd-journal11:29:550
177549990,4cyclictest13663-21perf10:00:010
177789987,1cyclictest35-21ksoftirqd/312:39:523
177789986,1cyclictest11301-21snmpd10:35:373
177789986,1cyclictest11301-21snmpd08:51:433
177789986,1cyclictest11301-21snmpd08:18:063
177789981,7cyclictest20105-21munin-node10:44:073
177789980,4cyclictest2611-21apt-get10:30:103
177789980,4cyclictest2611-21apt-get10:30:103
177789980,4cyclictest10402-21diskmemload12:25:173
177789980,2cyclictest0-21swapper/309:40:123
177689986,1cyclictest61650irq/122-eno111:55:212
177689986,1cyclictest61650irq/122-eno111:22:432
177689986,1cyclictest11301-21snmpd12:38:562
177689986,1cyclictest11301-21snmpd12:03:162
177689986,1cyclictest11301-21snmpd11:46:342
177689986,1cyclictest11301-21snmpd07:26:472
177689980,4cyclictest13442-21missed_timers12:15:152
177689980,4cyclictest13177-21apt-get10:45:112
177549988,0cyclictest9-21ksoftirqd/010:55:000
177549987,1cyclictest9-21ksoftirqd/011:40:160
177549987,1cyclictest9-21ksoftirqd/010:05:110
177549987,1cyclictest9-21ksoftirqd/010:00:170
177549987,1cyclictest9-21ksoftirqd/009:20:140
177549987,1cyclictest9-21ksoftirqd/009:15:000
177549986,1cyclictest9-21ksoftirqd/012:30:000
177549986,1cyclictest9-21ksoftirqd/011:35:160
177549986,1cyclictest9-21ksoftirqd/009:40:190
177549986,1cyclictest9-21ksoftirqd/008:40:120
177549986,1cyclictest9-21ksoftirqd/008:15:000
177549986,1cyclictest9-21ksoftirqd/007:40:160
177549986,1cyclictest11301-21snmpd11:58:040
177549986,1cyclictest11301-21snmpd10:22:580
177549984,1cyclictest240-21systemd-journal11:25:010
177549982,5cyclictest3126-21ssh11:15:150
177549981,1cyclictest0-21swapper/008:47:370
177549980,7cyclictest27078-21ssh11:50:120
177549980,4cyclictest26145-21perf08:35:000
177789976,1cyclictest11301-21snmpd09:24:443
177789975,1cyclictest29302-21ssh11:05:363
177789975,1cyclictest26986-21latency_hist11:50:003
177789975,1cyclictest25750-21ssh11:01:083
177789975,1cyclictest25355-21ssh12:32:233
177789975,1cyclictest22293-21ssh11:41:543
177789975,1cyclictest11301-21snmpd09:05:373
177789975,1cyclictest11301-21snmpd08:08:273
177789974,3cyclictest10402-21diskmemload09:16:133
177789973,3cyclictest27460-21users07:25:223
177789970,5cyclictest2721-21latency_hist07:45:003
177789970,5cyclictest13319-21sh09:59:063
177789970,2cyclictest0-21swapper/311:55:133
177689976,1cyclictest61650irq/122-eno111:50:192
177689976,1cyclictest61650irq/122-eno111:13:032
177689976,1cyclictest61650irq/122-eno110:30:012
177689976,1cyclictest61650irq/122-eno110:08:302
177689976,1cyclictest61650irq/122-eno109:30:002
177689976,1cyclictest61650irq/122-eno109:12:522
177689976,1cyclictest5988-21cat07:50:152
177689976,1cyclictest28-21ksoftirqd/211:07:112
177689976,1cyclictest11301-21snmpd07:58:332
177689976,1cyclictest0-21swapper/212:31:252
177689975,1cyclictest61650irq/122-eno107:30:202
177689975,1cyclictest11301-21snmpd12:25:172
177689975,1cyclictest11301-21snmpd09:22:502
177689975,1cyclictest11301-21snmpd08:23:252
177689975,1cyclictest11301-21snmpd07:45:472
177689973,2cyclictest294-21systemd-udevd10:51:092
177689973,1cyclictest240-21systemd-journal07:15:002
177689970,2cyclictest0-21swapper/210:13:312
177619971,6cyclictest0-21swapper/112:16:101
177619971,3cyclictest0-21swapper/112:30:121
177619970,6cyclictest0-21swapper/110:52:051
177619970,4cyclictest0-21swapper/111:08:101
177619970,4cyclictest0-21swapper/109:15:031
177619970,1cyclictest0-21swapper/112:25:371
177619970,1cyclictest0-21swapper/111:02:481
177619970,1cyclictest0-21swapper/110:21:261
177549976,1cyclictest9-21ksoftirqd/011:45:110
177549976,1cyclictest9-21ksoftirqd/007:25:220
177549976,1cyclictest6571-21ntpq12:05:180
177549976,1cyclictest11301-21snmpd08:36:070
177549975,1cyclictest9-21ksoftirqd/008:00:150
177549970,6cyclictest5305-21ssh09:45:560
177549970,6cyclictest22038-21ssh09:25:160
177549970,6cyclictest2142-21ntpq08:50:180
177549970,6cyclictest17689-21gltestperf08:15:150
177549970,6cyclictest0-21swapper/010:15:170
177549970,6cyclictest0-21swapper/009:15:170
177549970,6cyclictest0-21swapper/007:20:180
177549970,3cyclictest0-21swapper/011:10:090
177549970,1cyclictest14222-21ssh12:15:310
177549970,1cyclictest10402-21diskmemload09:30:140
177549970,1cyclictest0-21swapper/011:00:130
177789965,1cyclictest9779-21cat12:10:153
177789965,1cyclictest5317-21ssh09:45:583
177789965,1cyclictest4556-21ssh12:03:163
177789965,1cyclictest4340-21ssh11:16:233
177789965,1cyclictest31838-21ssh11:10:143
177789965,1cyclictest27228-21cat08:35:153
177789965,1cyclictest20178-21ssh10:55:103
177789965,1cyclictest19080-21ssh11:37:553
177789965,1cyclictest18935-21ssh12:24:173
177789965,1cyclictest18588-21ssh10:50:443
177789965,1cyclictest15960-21ssh10:01:143
177789965,1cyclictest13139-21ssh10:45:043
177789965,1cyclictest11301-21snmpd09:25:143
177789965,1cyclictest11301-21snmpd07:34:053
177789964,1cyclictest30924-21ssh09:36:403
177789964,1cyclictest30924-21ssh09:36:403
177789964,1cyclictest11301-21snmpd08:32:403
177789964,1cyclictest11301-21snmpd07:57:063
177789964,1cyclictest11301-21snmpd07:50:353
177789964,1cyclictest11301-21snmpd07:37:113
177789964,1cyclictest11301-21snmpd07:22:173
177789963,2cyclictest9504-21ssh11:25:143
177789962,2cyclictest30677-21ssh10:23:133
177789962,2cyclictest0-21swapper/308:40:123
177789961,4cyclictest233652sleep310:12:233
177789961,1cyclictest0-21swapper/307:15:123
177789960,3cyclictest10402-21diskmemload10:07:193
177789960,1cyclictest6315-21irqstats12:05:163
177789960,1cyclictest24467-21/usr/sbin/munin10:15:203
177789960,1cyclictest240-21systemd-journal10:29:553
177789960,1cyclictest0-21swapper/312:15:123
177789960,1cyclictest0-21swapper/311:34:053
177789960,0cyclictest0-21swapper/311:50:413
177689966,0cyclictest61650irq/122-eno112:10:572
177689966,0cyclictest61650irq/122-eno112:05:092
177689966,0cyclictest61650irq/122-eno111:35:112
177689966,0cyclictest61650irq/122-eno111:25:052
177689966,0cyclictest61650irq/122-eno110:00:352
177689966,0cyclictest61650irq/122-eno109:55:092
177689966,0cyclictest61650irq/122-eno109:45:172
177689966,0cyclictest61650irq/122-eno109:42:522
177689966,0cyclictest61650irq/122-eno109:15:082
177689966,0cyclictest61650irq/122-eno109:04:112
177689966,0cyclictest61650irq/122-eno108:58:282
177689966,0cyclictest61650irq/122-eno108:50:002
177689966,0cyclictest61650irq/122-eno108:38:292
177689966,0cyclictest61650irq/122-eno107:38:252
177689966,0cyclictest61650irq/122-eno107:20:562
177689965,1cyclictest61650irq/122-eno111:15:112
177689965,1cyclictest61650irq/122-eno110:55:162
177689965,1cyclictest28-21ksoftirqd/208:42:132
177689964,1cyclictest61650irq/122-eno111:00:192
177689964,1cyclictest61650irq/122-eno109:50:132
177689964,1cyclictest61650irq/122-eno107:15:002
177689964,1cyclictest12337-21head08:05:132
177689963,1cyclictest240-21systemd-journal09:10:002
177689962,2cyclictest14540-21apt-get08:10:122
177689961,4cyclictest25155-21apt-get09:30:112
177689961,3cyclictest10402-21diskmemload11:30:112
177689960,6cyclictest0-21swapper/210:20:132
177689960,5cyclictest0-21swapper/208:25:572
177689960,3cyclictest15926-21apt-get12:20:122
177689960,1cyclictest0-21swapper/208:01:092
177619961,2cyclictest0-21swapper/112:20:171
177619960,6cyclictest0-21swapper/112:00:491
177619960,6cyclictest0-21swapper/111:41:221
177619960,6cyclictest0-21swapper/111:15:021
177619960,6cyclictest0-21swapper/110:55:101
177619960,6cyclictest0-21swapper/110:32:471
177619960,6cyclictest0-21swapper/110:32:461
177619960,6cyclictest0-21swapper/109:52:001
177619960,6cyclictest0-21swapper/109:45:021
177619960,6cyclictest0-21swapper/108:20:061
177619960,6cyclictest0-21swapper/107:54:531
177619960,5cyclictest0-21swapper/111:39:511
177619960,4cyclictest0-21swapper/112:05:391
177619960,3cyclictest0-21swapper/107:55:151
177619960,1cyclictest0-21swapper/111:51:391
177619960,1cyclictest0-21swapper/111:45:481
177619960,1cyclictest0-21swapper/111:23:571
177619960,1cyclictest0-21swapper/108:10:161
177619960,1cyclictest0-21swapper/108:00:131
177619960,0cyclictest0-21swapper/110:17:141
177549965,1cyclictest9-21ksoftirqd/008:05:140
177549964,1cyclictest9-21ksoftirqd/009:00:000
177549964,1cyclictest11301-21snmpd07:54:020
177549962,0cyclictest0-21swapper/008:25:130
177549961,1cyclictest0-21swapper/007:10:120
177549960,5cyclictest23365-1kworker/u9:109:35:220
177549960,5cyclictest23365-1kworker/u9:109:35:220
177549960,5cyclictest0-21swapper/009:05:190
177549960,0cyclictest0-21swapper/007:45:150
177549960,0cyclictest0-21swapper/007:30:210
10640260,0sleep30-21swapper/309:10:073
177789954,1cyclictest16518-21sshd08:13:263
177789953,1cyclictest693-21runrttasks09:50:293
177789953,1cyclictest26785-21cat09:30:203
177789952,2cyclictest0-21swapper/307:45:143
177789950,4cyclictest0-21swapper/311:20:403
177789950,2cyclictest240-21systemd-journal08:59:593
177789950,1cyclictest18532-21fschecks_count07:10:143
177789950,1cyclictest0-21swapper/308:20:183
177689950,1cyclictest0-21swapper/207:40:142
177619955,0cyclictest0-21swapper/112:35:081
177619955,0cyclictest0-21swapper/109:33:561
177619953,2cyclictest20652sleep109:41:491
177619951,4cyclictest0-21swapper/108:29:381
177619950,5cyclictest0-21swapper/111:27:231
177619950,5cyclictest0-21swapper/109:36:451
177619950,5cyclictest0-21swapper/109:36:441
177619950,5cyclictest0-21swapper/109:25:381
177619950,5cyclictest0-21swapper/108:49:301
177619950,5cyclictest0-21swapper/108:18:551
177619950,5cyclictest0-21swapper/107:45:561
177619950,4cyclictest0-21swapper/110:47:441
177619950,4cyclictest0-21swapper/110:01:541
177619950,4cyclictest0-21swapper/107:40:001
177619950,3cyclictest0-21swapper/109:20:211
177619950,2cyclictest0-21swapper/111:10:091
177619950,2cyclictest0-21swapper/110:25:151
177619950,2cyclictest0-21swapper/108:40:111
177619950,1cyclictest0-21swapper/111:55:161
177619950,1cyclictest0-21swapper/110:10:201
177619950,1cyclictest0-21swapper/109:12:011
177619950,0cyclictest0-21swapper/110:40:121
177619950,0cyclictest0-21swapper/110:35:131
177549954,1cyclictest7434-21sshd07:55:010
177789943,1cyclictest22881-21pmu-power08:25:203
177789942,1cyclictest10545-21gltestperf08:00:153
177789940,2cyclictest0-21swapper/309:00:183
177619941,2cyclictest0-21swapper/108:05:111
177619940,4cyclictest0-21swapper/107:16:591
177619940,4cyclictest0-21swapper/107:11:151
177619940,3cyclictest0-21swapper/110:06:051
177619940,3cyclictest0-21swapper/107:45:001
177619940,2cyclictest0-21swapper/109:55:071
177619940,0cyclictest0-21swapper/109:05:221
177619940,0cyclictest0-21swapper/108:30:211
177619940,0cyclictest0-21swapper/107:25:211
177619940,0cyclictest0-21swapper/107:22:001
6438230,1sleep10-21swapper/109:00:151
177619933,0cyclictest0-21swapper/108:55:121
177619933,0cyclictest0-21swapper/108:50:121
177619931,1cyclictest0-21swapper/107:30:121
177619930,2cyclictest0-21swapper/108:35:111
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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