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2026-03-18 - 20:24
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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 792 highest latencies:
System rack1slot1.osadl.org (updated Wed Mar 18, 2026 12:45:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
105792212157,44sleep10-21swapper/107:09:221
104642200161,26sleep30-21swapper/307:07:513
105752199159,26sleep20-21swapper/207:09:192
104072198159,25sleep00-21swapper/007:07:070
1071799150,1cyclictest0-21swapper/111:40:111
1071799150,1cyclictest0-21swapper/109:35:191
1071799150,0cyclictest0-21swapper/107:35:121
1071799140,13cyclictest0-21swapper/109:15:371
1071799140,1cyclictest0-21swapper/111:55:191
1071799140,1cyclictest0-21swapper/108:15:211
1071799140,1cyclictest0-21swapper/108:10:201
1071799130,12cyclictest0-21swapper/110:43:581
1071799130,1cyclictest0-21swapper/112:30:501
1071799130,1cyclictest0-21swapper/111:30:001
1071799130,0cyclictest0-21swapper/110:25:581
10725991210,1cyclictest28-21ksoftirqd/210:20:002
1071799120,12cyclictest0-21swapper/110:48:351
1071799120,11cyclictest0-21swapper/110:55:151
1071799120,11cyclictest0-21swapper/110:50:131
1071799120,11cyclictest0-21swapper/110:24:371
1071799120,11cyclictest0-21swapper/109:31:341
1071799120,1cyclictest0-21swapper/110:01:141
10725991110,1cyclictest28-21ksoftirqd/207:30:012
1071799111,0cyclictest0-21swapper/111:00:301
1071799110,2cyclictest0-21swapper/111:17:111
1071799110,11cyclictest0-21swapper/109:45:191
1071799110,1cyclictest0-21swapper/112:19:461
1071799110,1cyclictest0-21swapper/112:10:211
1071799110,1cyclictest0-21swapper/112:10:201
1071799110,1cyclictest0-21swapper/109:40:561
1071799110,1cyclictest0-21swapper/109:05:171
1071799110,1cyclictest0-21swapper/107:50:201
1071799110,0cyclictest0-21swapper/112:37:361
1071799110,0cyclictest0-21swapper/111:51:221
1071799110,0cyclictest0-21swapper/111:46:541
1071799110,0cyclictest0-21swapper/111:37:221
1071799110,0cyclictest0-21swapper/111:20:151
1071799110,0cyclictest0-21swapper/110:30:141
1071799110,0cyclictest0-21swapper/110:17:271
1071799110,0cyclictest0-21swapper/109:50:381
1071799110,0cyclictest0-21swapper/109:10:351
1070899119,1cyclictest9-21ksoftirqd/007:15:010
1073199109,1cyclictest35-21ksoftirqd/312:15:013
1073199109,1cyclictest35-21ksoftirqd/312:15:003
1073199109,1cyclictest35-21ksoftirqd/307:54:593
1072599108,1cyclictest28-21ksoftirqd/209:00:002
1071799100,10cyclictest0-21swapper/111:10:531
1071799100,1cyclictest0-21swapper/112:24:271
1071799100,1cyclictest0-21swapper/112:00:131
1071799100,1cyclictest0-21swapper/111:30:571
1071799100,1cyclictest0-21swapper/110:35:191
1071799100,1cyclictest0-21swapper/110:10:141
1071799100,1cyclictest0-21swapper/109:55:141
1071799100,1cyclictest0-21swapper/109:25:171
1071799100,1cyclictest0-21swapper/108:50:131
1071799100,1cyclictest0-21swapper/108:00:141
1071799100,0cyclictest0-21swapper/112:05:261
1071799100,0cyclictest0-21swapper/110:07:501
1071799100,0cyclictest0-21swapper/107:10:201
1070899109,1cyclictest9-21ksoftirqd/012:05:010
107319998,1cyclictest35-21ksoftirqd/310:15:013
107319998,1cyclictest35-21ksoftirqd/307:40:003
107259999,0cyclictest0-21swapper/212:26:252
107259990,8cyclictest14720-21sh09:22:432
107259990,8cyclictest14720-21sh09:22:422
107179990,9cyclictest0-21swapper/108:35:101
107179990,8cyclictest0-21swapper/109:21:521
107179990,8cyclictest0-21swapper/109:21:521
107179990,1cyclictest0-21swapper/112:25:301
107179990,1cyclictest0-21swapper/111:05:161
107179990,1cyclictest0-21swapper/108:05:131
107179990,1cyclictest0-21swapper/107:21:221
107179990,0cyclictest263272sleep108:47:291
107179990,0cyclictest0-21swapper/107:58:411
107089998,1cyclictest9-21ksoftirqd/012:00:000
107089997,1cyclictest9-21ksoftirqd/007:35:010
107089992,1cyclictest22156-21sh12:19:490
107089990,4cyclictest604-21perf07:55:000
10576290,0sleep20-21swapper/212:04:562
15684280,0sleep30-21swapper/310:46:023
107319987,1cyclictest35-21ksoftirqd/309:40:003
107319986,1cyclictest707-21snmpd12:20:483
107319986,1cyclictest707-21snmpd12:16:203
107319986,1cyclictest707-21snmpd11:00:213
107319986,1cyclictest707-21snmpd10:52:323
107319986,1cyclictest707-21snmpd10:38:363
107319986,1cyclictest707-21snmpd08:12:233
107319986,1cyclictest707-21snmpd07:27:223
107319986,1cyclictest35-21ksoftirqd/308:00:003
107319985,2cyclictest0-21swapper/309:59:213
107319982,3cyclictest22461-21apt-get10:15:153
107319980,6cyclictest707-21snmpd08:08:563
107259987,1cyclictest28-21ksoftirqd/212:22:532
107259987,1cyclictest28-21ksoftirqd/209:59:592
107259986,1cyclictest707-21snmpd09:04:412
107259986,1cyclictest707-21snmpd08:36:422
107259986,1cyclictest61650irq/122-eno111:45:112
107259986,1cyclictest61650irq/122-eno110:45:192
107259986,1cyclictest61650irq/122-eno110:14:402
107259986,1cyclictest61650irq/122-eno110:07:002
107259986,1cyclictest61650irq/122-eno109:18:052
107259986,1cyclictest2831-21sensors09:05:192
107259986,1cyclictest28-21ksoftirqd/212:05:042
107259986,1cyclictest28-21ksoftirqd/208:50:112
107259984,3cyclictest27470-21irqstats10:20:172
107259981,4cyclictest3561-21diskmemload11:30:002
107259980,5cyclictest21405-21rt-features09:30:192
107259980,5cyclictest0-21swapper/208:10:122
107259980,4cyclictest28325-21apt-get07:45:112
107259980,2cyclictest2869-21ssh11:54:592
107259980,0cyclictest0-21swapper/210:42:322
107179980,1cyclictest0-21swapper/109:00:151
107179980,0cyclictest0-21swapper/108:20:101
107179980,0cyclictest0-21swapper/108:20:091
107089988,0cyclictest9-21ksoftirqd/010:10:010
107089987,1cyclictest9-21ksoftirqd/009:55:140
107089987,1cyclictest10699-21cyclictest12:26:100
107089986,1cyclictest9-21ksoftirqd/008:22:320
107089986,1cyclictest9-21ksoftirqd/008:22:320
107089986,1cyclictest1894-21/usr/sbin/munin12:35:120
107089980,7cyclictest0-21swapper/011:10:150
107089980,6cyclictest0-21swapper/008:05:130
107089980,4cyclictest8285-21latency_hist11:20:010
107319976,1cyclictest707-21snmpd11:44:443
107319976,1cyclictest707-21snmpd10:40:333
107319976,1cyclictest707-21snmpd09:23:373
107319976,1cyclictest707-21snmpd09:23:363
107319975,1cyclictest707-21snmpd11:39:593
107319975,1cyclictest707-21snmpd11:31:003
107319975,1cyclictest4354-21cstates09:10:113
107319975,1cyclictest3924-21ssh12:35:553
107319975,1cyclictest18449-21cron07:25:013
107319975,0cyclictest13650irq/124-ahci[0008:04:553
107319974,2cyclictest24572-21ssh10:59:063
107319974,1cyclictest240-21systemd-journal10:25:013
107319970,5cyclictest0-21swapper/309:46:483
107319970,4cyclictest0-21swapper/312:26:523
107259976,1cyclictest61650irq/122-eno111:43:302
107259976,1cyclictest61650irq/122-eno111:20:182
107259976,1cyclictest61650irq/122-eno110:30:202
107259976,1cyclictest61650irq/122-eno109:50:362
107259976,1cyclictest61650irq/122-eno108:48:522
107259976,1cyclictest61650irq/122-eno107:11:222
107259976,1cyclictest17149-21cat11:30:152
107259976,0cyclictest61650irq/122-eno111:10:042
107259975,1cyclictest61650irq/122-eno112:30:142
107259975,1cyclictest61650irq/122-eno111:35:112
107259975,1cyclictest61650irq/122-eno111:00:202
107259975,1cyclictest61650irq/122-eno110:35:112
107259975,1cyclictest61650irq/122-eno109:50:002
107259975,1cyclictest61650irq/122-eno108:25:172
107259975,1cyclictest28-21ksoftirqd/211:05:122
107259975,1cyclictest28-21ksoftirqd/207:54:592
107259975,1cyclictest21079-21ssh12:17:002
107259972,2cyclictest0-21swapper/212:35:112
107259970,6cyclictest0-21swapper/212:10:062
107259970,6cyclictest0-21swapper/212:10:052
107259970,6cyclictest0-21swapper/209:35:332
107259970,6cyclictest0-21swapper/207:50:562
107259970,1cyclictest0-21swapper/209:25:132
107179971,1cyclictest0-21swapper/108:40:131
107179971,1cyclictest0-21swapper/107:30:131
107179971,1cyclictest0-21swapper/107:25:121
107179970,7cyclictest0-21swapper/107:20:001
107179970,1cyclictest0-21swapper/108:55:111
107179970,1cyclictest0-21swapper/108:25:191
107179970,1cyclictest0-21swapper/107:50:001
107179970,1cyclictest0-21swapper/107:40:131
107089976,1cyclictest5143-21ssh09:51:010
107089976,1cyclictest29123-21/usr/sbin/munin08:55:200
107089976,1cyclictest28482-1kworker/u9:111:05:020
107089976,1cyclictest25832-1kworker/u9:012:10:300
107089976,1cyclictest25832-1kworker/u9:012:10:300
107089976,1cyclictest24103-21telnet11:40:120
107089976,1cyclictest17658-21ssh10:50:130
107089976,1cyclictest1708-21ssh11:51:570
107089976,1cyclictest101rcuc/007:49:590
107089975,1cyclictest707-21snmpd08:26:110
107089975,1cyclictest13961-21/usr/sbin/munin07:15:160
107089975,1cyclictest10246-21/usr/sbin/munin08:15:200
107089971,6cyclictest20006-21ssh09:30:050
107089971,6cyclictest10361-21ssh11:20:290
107089970,7cyclictest0-21swapper/011:31:360
107089970,6cyclictest9568-21ssh10:40:080
107089970,6cyclictest8400-21df_inode08:10:130
107089970,6cyclictest31597-21ssh09:45:020
107089970,6cyclictest31538-21aten_r1power_en09:00:100
107089970,6cyclictest27844-21/usr/sbin/munin09:40:200
107089970,6cyclictest27787-21ssh11:45:020
107089970,6cyclictest26830-21aten2.4-expect08:50:120
107089970,6cyclictest26027-21apt-get10:20:000
107089970,6cyclictest25173-21ssh11:00:010
107089970,6cyclictest24093-21sh09:35:130
107089970,6cyclictest22530-21ssh12:20:090
107089970,6cyclictest22061-21/usr/sbin/munin08:40:160
107089970,6cyclictest19040-21grep08:30:200
107089970,6cyclictest18539-21ssh10:10:040
107089970,6cyclictest17199-1kworker/u9:210:35:190
107089970,6cyclictest16336-21/usr/sbin/munin07:20:140
107089970,6cyclictest1424-21/usr/sbin/munin09:05:150
107089970,6cyclictest12338-21ssh11:25:040
107089970,6cyclictest0-21swapper/012:05:200
107089970,6cyclictest0-21swapper/010:30:130
107089970,6cyclictest0-21swapper/010:00:150
107089970,6cyclictest0-21swapper/009:10:120
107089970,1cyclictest3561-21diskmemload10:55:040
107089970,1cyclictest3561-21diskmemload09:17:070
107089970,1cyclictest22455-21/usr/sbin/munin10:15:170
107089970,1cyclictest19688-21/usr/sbin/munin08:35:120
107089970,1cyclictest13920-21cpuspeed_turbos10:45:120
107089970,1cyclictest13805-21ssh09:20:370
107089970,1cyclictest13805-21ssh09:20:370
107089970,1cyclictest0-21swapper/011:35:550
107089970,1cyclictest0-21swapper/009:26:300
107089970,1cyclictest0-21swapper/007:25:140
107089970,0cyclictest0-21swapper/012:30:190
107089970,0cyclictest0-21swapper/010:26:490
107319965,1cyclictest707-21snmpd08:31:333
107319965,1cyclictest707-21snmpd07:42:293
107319965,1cyclictest35-21ksoftirqd/309:10:003
107319965,1cyclictest32642-21ntpq09:00:173
107319965,1cyclictest30491-21ntpq11:05:163
107319965,1cyclictest30343-21ssh10:25:023
107319965,1cyclictest30256-21ntpq08:55:173
107319965,1cyclictest30209-21ssh12:30:023
107319965,1cyclictest29767-21ssh09:40:463
107319965,1cyclictest2021-21ssh11:52:453
107319965,1cyclictest14475-21ssh11:26:103
107319965,1cyclictest13049-21ssh10:01:213
107319965,1cyclictest10424-21ssh11:20:383
107319964,1cyclictest707-21snmpd09:17:133
107319964,1cyclictest707-21snmpd08:51:533
107319964,1cyclictest707-21snmpd08:35:093
107319964,1cyclictest20366-21ssh09:30:133
107319964,1cyclictest12808-21ssh12:05:363
107319962,3cyclictest3561-21diskmemload09:50:183
107319962,3cyclictest22064-21apt-get08:40:103
107319962,2cyclictest17141-21netstat09:25:163
107319960,6cyclictest6500-21ssh11:59:223
107319960,6cyclictest0-21swapper/311:45:213
107319960,2cyclictest0-21swapper/312:00:123
107319960,2cyclictest0-21swapper/311:12:533
107319960,2cyclictest0-21swapper/310:06:023
107319960,1cyclictest4774-21/usr/sbin/munin11:15:123
107259966,0cyclictest61650irq/122-eno111:55:062
107259966,0cyclictest61650irq/122-eno111:15:092
107259966,0cyclictest61650irq/122-eno110:55:112
107259966,0cyclictest61650irq/122-eno110:50:472
107259966,0cyclictest61650irq/122-eno110:25:182
107259966,0cyclictest61650irq/122-eno110:00:092
107259966,0cyclictest61650irq/122-eno109:40:182
107259966,0cyclictest61650irq/122-eno108:30:182
107259966,0cyclictest61650irq/122-eno108:16:322
107259965,1cyclictest61650irq/122-eno109:10:012
107259965,1cyclictest61650irq/122-eno107:41:322
107259964,1cyclictest707-21snmpd07:17:252
107259964,1cyclictest61650irq/122-eno107:35:142
107259964,1cyclictest61650irq/122-eno107:25:002
107259960,3cyclictest0-21swapper/208:40:092
107259960,3cyclictest0-21swapper/208:20:102
107259960,3cyclictest0-21swapper/208:20:092
107179960,1cyclictest0-21swapper/108:30:101
107089960,6cyclictest0-21swapper/007:55:100
107089960,5cyclictest23592-21/usr/sbin/munin07:35:140
107089960,5cyclictest0-21swapper/007:40:100
107089960,1cyclictest0-21swapper/008:00:110
107089960,0cyclictest0-21swapper/008:46:320
107319954,1cyclictest25307-21cat08:45:153
107319954,1cyclictest22420-21systemctl07:30:193
107319953,2cyclictest1747-21ntpd07:49:263
107319951,0cyclictest3561-21diskmemload10:31:153
107319950,0cyclictest0-21swapper/308:24:583
107319950,0cyclictest0-21swapper/308:24:583
107319950,0cyclictest0-21swapper/307:11:063
107259952,1cyclictest0-21swapper/208:05:092
107259950,3cyclictest0-21swapper/207:30:122
107319942,1cyclictest35-21ksoftirqd/308:15:123
107319942,1cyclictest14985-21/usr/sbin/munin08:25:113
107319942,1cyclictest13685-21swap07:15:013
107259944,0cyclictest61650irq/122-eno108:00:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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