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2026-03-20 - 09:24
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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 Fri Mar 20, 2026 00:45:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2828724870,5sleep10-21swapper/119:05:231
2828724870,5sleep10-21swapper/119:05:231
287602201162,26sleep20-21swapper/219:08:392
287602201162,26sleep20-21swapper/219:08:382
287562200161,26sleep30-21swapper/319:08:363
287562200161,26sleep30-21swapper/319:08:353
286812199161,25sleep00-21swapper/019:07:360
286812199161,25sleep00-21swapper/019:07:360
95952570,0sleep30-21swapper/300:20:183
320652170,0sleep10-21swapper/122:45:121
28955991311,1cyclictest28-21ksoftirqd/220:49:592
28944991313,0cyclictest0-21swapper/120:05:361
28955991211,1cyclictest28-21ksoftirqd/221:20:012
28955991210,1cyclictest28-21ksoftirqd/221:40:002
2895599120,12cyclictest0-21swapper/222:05:212
2896299119,1cyclictest35-21ksoftirqd/319:50:003
2896299118,2cyclictest32375-21ssh00:09:073
28962991110,1cyclictest35-21ksoftirqd/323:10:013
2894099119,1cyclictest9-21ksoftirqd/020:00:000
2894099103,6cyclictest2752-21perf20:29:590
4925290,0sleep10-21swapper/123:33:431
289629998,1cyclictest35-21ksoftirqd/321:00:013
289629998,1cyclictest35-21ksoftirqd/300:15:003
289629996,1cyclictest35-21ksoftirqd/320:35:003
289559997,1cyclictest28-21ksoftirqd/219:20:092
289559990,8cyclictest6612-21cron19:30:002
289559990,5cyclictest0-21swapper/221:10:102
289409998,1cyclictest9-21ksoftirqd/023:00:010
289409997,1cyclictest9-21ksoftirqd/023:25:000
289409997,1cyclictest9-21ksoftirqd/021:39:590
289409994,1cyclictest4585-21ssh22:50:180
289409991,1cyclictest240-21systemd-journal22:19:550
289629987,1cyclictest35-21ksoftirqd/300:20:003
289629986,1cyclictest35-21ksoftirqd/323:15:003
289629986,1cyclictest35-21ksoftirqd/322:45:003
289629986,1cyclictest35-21ksoftirqd/320:10:013
289629986,1cyclictest35-21ksoftirqd/319:35:003
289629986,1cyclictest35-21ksoftirqd/319:20:013
289629986,1cyclictest18368-21cat21:45:153
289629982,5cyclictest9467-21nscd00:01:133
289629982,4cyclictest10039-21apt-get20:45:113
289629982,3cyclictest16253-21apt-get00:30:103
289629981,4cyclictest21853-21apt-get21:10:113
289629980,3cyclictest0-21swapper/319:30:093
289559988,0cyclictest28-21ksoftirqd/222:01:102
289559986,1cyclictest707-21snmpd23:35:052
289559986,1cyclictest707-21snmpd21:58:082
289559986,1cyclictest707-21snmpd00:29:482
289559986,1cyclictest23286-21ssh22:33:572
289449980,5cyclictest0-21swapper/122:14:551
289409987,1cyclictest9-21ksoftirqd/022:10:010
289409984,0cyclictest0-21swapper/021:05:140
289409983,4cyclictest7502-21users23:35:190
289409982,5cyclictest21598-21diskmemload00:25:160
289409981,6cyclictest19327-1kworker/u9:223:55:000
289409981,4cyclictest11399-21cut19:40:000
289409980,7cyclictest2059-21ssh22:47:550
289409980,4cyclictest11968-21perf00:25:000
289409980,2cyclictest20107-21ssh00:35:110
289409980,1cyclictest23702-21ssh21:51:570
289409980,1cyclictest1619-21apt-get21:25:120
289409980,0cyclictest0-21swapper/020:45:110
289629977,0cyclictest35-21ksoftirqd/322:15:133
289629976,1cyclictest707-21snmpd23:52:243
289629976,1cyclictest707-21snmpd22:01:363
289629976,1cyclictest35-21ksoftirqd/323:35:003
289629976,1cyclictest35-21ksoftirqd/323:00:123
289629976,1cyclictest35-21ksoftirqd/323:00:013
289629976,1cyclictest35-21ksoftirqd/321:07:323
289629976,1cyclictest18004-21cat21:00:133
289629975,1cyclictest707-21snmpd21:31:293
289629975,1cyclictest707-21snmpd19:40:593
289629975,1cyclictest707-21snmpd00:26:223
289629975,1cyclictest35-21ksoftirqd/323:55:143
289629975,1cyclictest35-21ksoftirqd/319:25:003
289629975,1cyclictest31547-21cat20:20:153
289629971,5cyclictest14813-21open_files21:40:163
289629971,4cyclictest707-21snmpd23:21:103
289629971,3cyclictest0-21swapper/321:55:463
289629970,6cyclictest6433-21kworker/3:122:50:123
289629970,6cyclictest14509-21latency_hist20:55:003
289629970,6cyclictest1252-21ssh21:24:483
289629970,4cyclictest30864-21cstates23:25:133
289559976,1cyclictest61650irq/122-eno123:56:492
289559976,1cyclictest61650irq/122-eno123:51:502
289559976,1cyclictest61650irq/122-eno123:40:372
289559976,1cyclictest61650irq/122-eno123:12:562
289559976,1cyclictest61650irq/122-eno123:06:352
289559976,1cyclictest61650irq/122-eno122:50:482
289559976,1cyclictest61650irq/122-eno122:14:472
289559976,1cyclictest61650irq/122-eno120:20:112
289559976,1cyclictest61650irq/122-eno100:38:532
289559976,1cyclictest61650irq/122-eno100:15:402
289559976,1cyclictest25163-21ntpq22:35:172
289559976,0cyclictest61650irq/122-eno121:25:212
289559975,1cyclictest61650irq/122-eno123:34:592
289559975,1cyclictest61650irq/122-eno122:45:152
289559975,1cyclictest61650irq/122-eno121:40:392
289559973,2cyclictest240-21systemd-journal20:04:592
289559972,4cyclictest27871-21apt-get22:40:112
289559971,5cyclictest18651-21apt-get19:55:102
289559970,5cyclictest707-21snmpd20:10:542
289559970,4cyclictest0-21swapper/200:30:112
289559970,1cyclictest0-21swapper/220:50:122
289559970,1cyclictest0-21swapper/220:05:102
289559970,1cyclictest0-21swapper/200:14:272
289449976,1cyclictest0-21swapper/123:52:091
289449970,5cyclictest0-21swapper/122:15:321
289449970,5cyclictest0-21swapper/121:00:101
289449970,5cyclictest0-21swapper/100:26:001
289449970,4cyclictest0-21swapper/122:58:101
289449970,1cyclictest0-21swapper/123:27:371
289449970,1cyclictest0-21swapper/122:32:041
289449970,1cyclictest0-21swapper/120:40:111
289449970,1cyclictest0-21swapper/119:42:261
289409976,1cyclictest28503-21ssh21:17:420
289409975,1cyclictest707-21snmpd22:30:280
289409975,1cyclictest4394-21ssh00:15:020
289409975,1cyclictest16874-21perf21:00:000
289409973,2cyclictest240-21systemd-journal19:34:550
289409973,1cyclictest240-21systemd-journal23:30:000
289409970,6cyclictest21598-21diskmemload00:01:290
289409970,6cyclictest19307-21ssh21:45:290
289409970,6cyclictest1916-21munin-run19:20:010
289409970,6cyclictest14121-1kworker/u9:123:05:110
289409970,6cyclictest0-21swapper/023:15:150
289409970,6cyclictest0-21swapper/023:10:110
289409970,6cyclictest0-21swapper/022:20:170
289409970,6cyclictest0-21swapper/020:35:130
289409970,6cyclictest0-21swapper/000:05:120
289409970,5cyclictest0-21swapper/019:45:150
289409970,3cyclictest0-21swapper/020:05:090
289409970,1cyclictest8566-21if_err_eno120:40:160
289409970,1cyclictest31059-21ssh22:44:040
289409970,1cyclictest30950-21ssh21:20:180
289409970,1cyclictest2788-21ssh00:11:250
289409970,1cyclictest25760-21ssh22:35:200
289409970,1cyclictest24735-21ssh23:59:560
289409970,1cyclictest24396-21sshd21:12:330
289409970,1cyclictest21598-21diskmemload23:47:180
289409970,1cyclictest19345-21ssh00:33:470
289409970,1cyclictest19232-21latency_hist21:05:010
289409970,1cyclictest0-21swapper/023:00:570
289409970,1cyclictest0-21swapper/022:25:580
289629966,0cyclictest35-21ksoftirqd/322:39:593
289629965,1cyclictest8172-21ssh23:37:053
289629965,1cyclictest707-21snmpd19:50:373
289629965,1cyclictest35-21ksoftirqd/319:10:123
289629965,1cyclictest27989-21ssh21:16:323
289629965,1cyclictest24867-21ssh21:54:593
289629965,1cyclictest2405-21ssh22:05:393
289629965,1cyclictest21899-21ssh00:35:223
289629965,1cyclictest14886-21ssh23:45:203
289629965,1cyclictest14711-21ssh22:21:473
289629964,1cyclictest707-21snmpd22:49:573
289629964,1cyclictest707-21snmpd21:35:143
289629964,1cyclictest707-21snmpd20:40:513
289629964,1cyclictest707-21snmpd20:36:413
289629964,1cyclictest35-21ksoftirqd/321:25:173
289629964,1cyclictest35-21ksoftirqd/320:05:003
289629964,1cyclictest24654-21ssh23:15:493
289629964,1cyclictest18340-21ssh22:26:073
289629963,1cyclictest28960-21/usr/sbin/munin20:15:143
289629960,3cyclictest557-21irqbalance22:12:163
289559966,0cyclictest61650irq/122-eno123:45:192
289559966,0cyclictest61650irq/122-eno123:16:082
289559966,0cyclictest61650irq/122-eno123:00:452
289559966,0cyclictest61650irq/122-eno122:15:362
289559966,0cyclictest61650irq/122-eno121:50:052
289559966,0cyclictest61650irq/122-eno121:45:142
289559966,0cyclictest61650irq/122-eno121:30:052
289559966,0cyclictest61650irq/122-eno121:20:192
289559966,0cyclictest61650irq/122-eno120:41:192
289559966,0cyclictest61650irq/122-eno120:19:012
289559966,0cyclictest61650irq/122-eno119:16:462
289559966,0cyclictest61650irq/122-eno100:20:552
289559966,0cyclictest61650irq/122-eno100:00:022
289559965,1cyclictest61650irq/122-eno123:25:162
289559965,1cyclictest61650irq/122-eno123:20:192
289559965,1cyclictest61650irq/122-eno120:55:122
289559965,1cyclictest61650irq/122-eno119:50:122
289559965,1cyclictest61650irq/122-eno100:05:122
289559965,1cyclictest3846-21cat20:30:162
289559964,1cyclictest61650irq/122-eno122:55:142
289559964,1cyclictest61650irq/122-eno122:25:122
289559964,1cyclictest61650irq/122-eno119:40:112
289559964,1cyclictest21598-21diskmemload22:20:172
289559961,4cyclictest0-21swapper/219:35:092
289559960,6cyclictest0-21swapper/220:26:562
289449965,1cyclictest0-21swapper/119:25:101
289449963,1cyclictest0-21swapper/120:04:471
289449963,0cyclictest0-21swapper/121:25:211
289449960,6cyclictest0-21swapper/123:55:421
289449960,6cyclictest0-21swapper/123:17:291
289449960,6cyclictest0-21swapper/121:39:291
289449960,6cyclictest0-21swapper/121:07:071
289449960,6cyclictest0-21swapper/120:19:531
289449960,6cyclictest0-21swapper/119:51:371
289449960,6cyclictest0-21swapper/119:23:011
289449960,6cyclictest0-21swapper/100:07:151
289449960,6cyclictest0-21swapper/100:04:311
289449960,5cyclictest0-21swapper/122:25:171
289449960,5cyclictest0-21swapper/120:25:151
289449960,3cyclictest0-21swapper/123:09:151
289449960,3cyclictest0-21swapper/122:50:181
289449960,3cyclictest0-21swapper/122:06:451
289449960,3cyclictest0-21swapper/100:30:191
289449960,2cyclictest0-21swapper/123:10:191
289449960,2cyclictest0-21swapper/121:40:131
289449960,2cyclictest0-21swapper/119:55:101
289449960,1cyclictest0-21swapper/123:20:171
289449960,1cyclictest0-21swapper/121:20:141
289449960,1cyclictest0-21swapper/121:15:101
289449960,1cyclictest0-21swapper/120:53:461
289449960,1cyclictest0-21swapper/100:11:581
289449960,0cyclictest0-21swapper/123:03:491
289409965,1cyclictest9-21ksoftirqd/019:25:120
289409964,1cyclictest707-21snmpd23:40:270
289409964,1cyclictest707-21snmpd21:55:260
289409964,1cyclictest707-21snmpd20:30:120
289409961,1cyclictest21022-21/usr/sbin/munin20:00:160
289409960,6cyclictest4127-21ssh23:31:360
289409960,6cyclictest0-21swapper/021:32:140
289409960,6cyclictest0-21swapper/020:51:400
289409960,6cyclictest0-21swapper/020:10:010
289409960,5cyclictest2436-21cut19:20:110
289409960,1cyclictest0-21swapper/022:11:390
289409960,0cyclictest0-21swapper/022:00:150
289409960,0cyclictest0-21swapper/021:40:170
289409960,0cyclictest0-21swapper/020:20:110
289629954,1cyclictest11556-21ssh23:40:443
289629953,1cyclictest2719-21sh20:30:003
289629952,2cyclictest21598-21diskmemload22:30:393
289629951,2cyclictest0-21swapper/319:25:203
289559955,0cyclictest61650irq/122-eno119:32:452
289559955,0cyclictest61650irq/122-eno119:11:302
289559954,1cyclictest28-21ksoftirqd/221:05:112
289559950,4cyclictest17113-21/usr/sbin/munin21:00:132
289559950,1cyclictest0-21swapper/219:45:162
289449955,0cyclictest0-21swapper/122:02:221
289449955,0cyclictest0-21swapper/121:31:341
289449955,0cyclictest0-21swapper/121:11:511
289449950,5cyclictest0-21swapper/123:42:181
289449950,5cyclictest0-21swapper/122:36:461
289449950,5cyclictest0-21swapper/121:50:181
289449950,5cyclictest0-21swapper/120:55:311
289449950,5cyclictest0-21swapper/100:35:151
289449950,4cyclictest0-21swapper/121:45:201
289449950,2cyclictest0-21swapper/123:38:411
289449950,2cyclictest0-21swapper/121:55:151
289449950,2cyclictest0-21swapper/120:30:121
289449950,2cyclictest0-21swapper/100:20:501
289449950,1cyclictest0-21swapper/123:45:121
289449950,1cyclictest0-21swapper/122:20:151
289449950,1cyclictest0-21swapper/119:10:101
289449950,1cyclictest0-21swapper/100:16:241
289449950,0cyclictest0-21swapper/119:30:081
289409950,5cyclictest0-21swapper/020:15:120
289409950,4cyclictest29151-21/usr/sbin/munin19:10:100
289409950,4cyclictest16295-21/usr/sbin/munin19:50:160
289409950,0cyclictest0-21swapper/019:40:070
289629941,1cyclictest0-21swapper/319:55:103
289629940,1cyclictest240-21systemd-journal20:10:013
289559944,0cyclictest61650irq/122-eno120:35:042
289449940,4cyclictest0-21swapper/120:39:541
289449940,4cyclictest0-21swapper/119:39:271
289449940,2cyclictest0-21swapper/122:40:101
289449940,0cyclictest0-21swapper/119:15:011
289449931,1cyclictest0-21swapper/120:45:101
289449931,1cyclictest0-21swapper/120:10:121
289449930,2cyclictest0-21swapper/119:45:111
289449930,0cyclictest0-21swapper/120:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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