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2026-04-05 - 16:56
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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 Sun Apr 05, 2026 12:45:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
146272236158,61sleep20-21swapper/207:08:142
144842213157,43sleep30-21swapper/307:06:233
146082205152,41sleep00-21swapper/007:08:000
144722198161,24sleep10-21swapper/107:06:131
132042630,1sleep3341rcuc/308:10:193
290282580,0sleep10-21swapper/108:45:141
87162140,0sleep10-21swapper/110:34:271
1484699133,5cyclictest5385-21date09:05:000
14863991211,1cyclictest28-21ksoftirqd/208:15:012
14870991111,0cyclictest0-21swapper/311:56:473
1487099109,1cyclictest561-21nscd09:22:413
1484699100,1cyclictest240-21systemd-journal12:20:010
8724290,0sleep20-21swapper/210:34:282
27181290,0sleep227313-21/usr/sbin/munin10:15:142
27181290,0sleep227313-21/usr/sbin/munin10:15:142
16317290,0sleep20-21swapper/210:44:112
148709998,1cyclictest35-21ksoftirqd/309:05:003
148709992,4cyclictest35-21ksoftirqd/310:47:323
148469997,1cyclictest9-21ksoftirqd/011:35:000
148469990,5cyclictest0-21swapper/008:55:120
14195290,0sleep00-21swapper/009:16:490
148709987,1cyclictest7697-21diskmemload11:29:473
148709981,5cyclictest2246-21python08:55:193
148709980,1cyclictest0-21swapper/308:35:113
148639988,0cyclictest0-21swapper/211:00:152
148639986,1cyclictest61650irq/122-eno111:05:142
148639986,1cyclictest61650irq/122-eno109:37:342
148639986,1cyclictest28-21ksoftirqd/208:40:002
148639983,2cyclictest240-21systemd-journal08:09:592
148559984,4cyclictest21-21ksoftirqd/109:48:461
148559980,7cyclictest0-21swapper/108:55:131
148469987,1cyclictest9-21ksoftirqd/008:25:010
148469987,1cyclictest9-21ksoftirqd/007:15:010
148469982,5cyclictest11140-21latency_hist11:20:000
148469981,5cyclictest22464-21apt-get10:10:120
148469980,7cyclictest9470-21grep10:35:100
148469980,7cyclictest24485-21grep11:35:220
148469980,7cyclictest19116-21sh10:46:260
148469980,7cyclictest18152-21perl12:10:140
148469980,7cyclictest13064-21sh10:40:060
148469980,1cyclictest0-21swapper/010:05:010
7719270,0sleep20-21swapper/208:00:122
26841270,0sleep20-21swapper/209:33:092
148709975,1cyclictest35-21ksoftirqd/309:45:273
148709975,1cyclictest18147-21ssh12:10:153
148709975,1cyclictest1107-21ssh09:40:263
148709973,3cyclictest5483-21sh11:55:003
148709973,1cyclictest240-21systemd-journal07:20:013
148709971,4cyclictest15050-21/usr/sbin/munin07:10:153
148709971,2cyclictest8982-21runrttasks09:51:063
148709970,6cyclictest11469-21ssh10:36:333
148639977,0cyclictest0-21swapper/210:47:112
148639976,1cyclictest61650irq/122-eno112:27:462
148639976,1cyclictest61650irq/122-eno112:05:132
148639976,1cyclictest61650irq/122-eno112:05:132
148639976,1cyclictest61650irq/122-eno111:23:252
148639976,1cyclictest61650irq/122-eno110:25:052
148639976,1cyclictest61650irq/122-eno109:50:142
148639976,0cyclictest61650irq/122-eno112:35:142
148639975,1cyclictest61650irq/122-eno112:10:102
148639975,1cyclictest61650irq/122-eno111:30:102
148639975,1cyclictest61650irq/122-eno110:35:092
148639975,1cyclictest61650irq/122-eno109:15:002
148639975,1cyclictest28-21ksoftirqd/208:52:072
148639975,1cyclictest28-21ksoftirqd/207:40:002
148639975,1cyclictest28-21ksoftirqd/207:10:112
148639974,1cyclictest61650irq/122-eno110:22:432
148639973,1cyclictest240-21systemd-journal11:43:252
148639970,6cyclictest25177-21aten2.4-expect12:20:112
148559977,0cyclictest21-21ksoftirqd/110:12:491
148559973,4cyclictest21-21ksoftirqd/111:51:581
148559973,1cyclictest56-21kworker/1:109:37:381
148559970,7cyclictest0-21swapper/107:15:141
148559970,3cyclictest0-21swapper/112:00:381
148469976,1cyclictest9-21ksoftirqd/007:25:010
148469976,1cyclictest9-21ksoftirqd/007:25:000
148469976,1cyclictest3158-1kworker/u9:211:10:020
148469976,1cyclictest28737-21cat09:35:150
148469976,1cyclictest12408-1kworker/u9:009:25:220
148469975,1cyclictest5035-21uniq12:35:120
148469975,1cyclictest3802-21ssh10:26:320
148469975,1cyclictest17480-21ssh11:26:410
148469973,1cyclictest240-21systemd-journal08:25:190
148469972,4cyclictest7697-21diskmemload12:23:110
148469971,5cyclictest11070-21python12:00:190
148469971,1cyclictest28448-21ssh11:00:100
148469970,6cyclictest7697-21diskmemload10:05:020
148469970,6cyclictest32419-21perl09:40:160
148469970,6cyclictest32304-21ssh11:45:210
148469970,6cyclictest31873-21latency08:50:150
148469970,6cyclictest27728-1kworker/u9:011:06:340
148469970,6cyclictest2204-21ssh12:30:250
148469970,6cyclictest21196-21ssh10:50:130
148469970,6cyclictest13146-21ssh11:20:180
148469970,6cyclictest12100-1kworker/u9:110:55:130
148469970,6cyclictest0-21swapper/012:05:200
148469970,6cyclictest0-21swapper/012:05:200
148469970,6cyclictest0-21swapper/009:32:110
148469970,6cyclictest0-21swapper/009:20:180
148469970,5cyclictest26202-21apt-get08:40:110
148469970,1cyclictest8153-21ssh10:32:570
148469970,1cyclictest7697-21diskmemload11:55:150
148469970,1cyclictest6924-21apt-get09:50:110
148469970,1cyclictest6068-21ssh09:48:320
148469970,1cyclictest30013-21ssh11:44:260
148469970,1cyclictest240-21systemd-journal08:13:200
148469970,1cyclictest12643-21ssh09:55:390
148469970,1cyclictest0-21swapper/011:50:130
8553260,0sleep30-21swapper/308:00:183
18834260,1sleep10-21swapper/109:23:181
148709965,1cyclictest6066-21ssh11:11:563
148709965,1cyclictest32759-21ssh11:46:303
148709965,1cyclictest31250-21ntpq07:40:183
148709965,1cyclictest29694-21ntpq08:45:183
148709965,1cyclictest28550-21ssh10:16:373
148709965,1cyclictest28550-21ssh10:16:373
148709965,1cyclictest27796-21ssh09:35:053
148709965,1cyclictest27261-21ssh12:21:153
148709965,1cyclictest26027-21ssh11:39:063
148709965,1cyclictest25698-21ssh09:30:213
148709965,1cyclictest24612-21ssh12:19:253
148709965,1cyclictest24562-21ssh10:11:113
148709965,1cyclictest17757-21ssh10:04:003
148709965,1cyclictest15202-21ssh10:41:093
148709965,1cyclictest14925-21sensors12:05:213
148709965,1cyclictest14925-21sensors12:05:203
148709965,1cyclictest1275-21cat12:30:163
148709965,1cyclictest11897-21ssh12:01:373
148709965,1cyclictest11781-21ssh09:15:043
148709965,1cyclictest10448-21ssh09:12:273
148709964,1cyclictest6523-21ssh12:36:153
148709964,1cyclictest31032-21cat10:20:143
148709964,1cyclictest21165-21ssh11:31:193
148709963,2cyclictest0-21swapper/311:40:523
148709963,1cyclictest240-21systemd-journal07:37:033
148709963,1cyclictest0-21swapper/312:25:413
148709962,1cyclictest7697-21diskmemload11:00:223
148709962,1cyclictest6639-21pmu-power10:30:193
148709962,1cyclictest14930-21awk11:25:003
148709961,4cyclictest22809-21ssh10:51:023
148709961,3cyclictest0-21swapper/309:55:113
148709960,3cyclictest2105-21diskstats10:25:153
148709960,2cyclictest0-21swapper/309:25:173
148709960,1cyclictest16515-21munin-run08:20:003
148709960,1cyclictest0-21swapper/311:15:113
148639966,0cyclictest61650irq/122-eno112:15:022
148639966,0cyclictest61650irq/122-eno111:59:262
148639966,0cyclictest61650irq/122-eno111:51:162
148639966,0cyclictest61650irq/122-eno111:35:142
148639966,0cyclictest61650irq/122-eno111:25:042
148639966,0cyclictest61650irq/122-eno111:15:432
148639966,0cyclictest61650irq/122-eno110:55:082
148639966,0cyclictest61650irq/122-eno110:11:382
148639966,0cyclictest61650irq/122-eno109:56:592
148639966,0cyclictest61650irq/122-eno109:46:142
148639966,0cyclictest61650irq/122-eno109:40:192
148639966,0cyclictest61650irq/122-eno109:15:082
148639966,0cyclictest61650irq/122-eno109:05:112
148639966,0cyclictest61650irq/122-eno109:02:032
148639966,0cyclictest61650irq/122-eno108:57:092
148639966,0cyclictest61650irq/122-eno108:34:162
148639966,0cyclictest61650irq/122-eno108:20:162
148639966,0cyclictest61650irq/122-eno107:50:252
148639966,0cyclictest61650irq/122-eno107:16:052
148639965,1cyclictest61650irq/122-eno110:05:122
148639965,1cyclictest6082-21ssh11:11:592
148639965,1cyclictest2290-21ssh12:30:382
148639965,0cyclictest61650irq/122-eno107:55:122
148639964,1cyclictest7697-21diskmemload10:00:112
148639964,1cyclictest61650irq/122-eno112:00:122
148639964,1cyclictest61650irq/122-eno111:45:122
148639964,1cyclictest61650irq/122-eno110:50:152
148639964,1cyclictest28-21ksoftirqd/209:25:052
148639963,2cyclictest2164-21idleruntime-cro07:49:592
148639962,3cyclictest769-21lldpd08:44:192
148639961,2cyclictest0-21swapper/209:20:112
148639961,2cyclictest0-21swapper/207:25:182
148639960,4cyclictest0-21swapper/208:46:202
148639960,1cyclictest0-21swapper/207:30:152
148559966,0cyclictest21-21ksoftirqd/112:19:001
148559962,4cyclictest56-21kworker/1:112:14:221
148559962,4cyclictest21-21ksoftirqd/107:12:021
148559960,6cyclictest0-21swapper/111:11:281
148559960,6cyclictest0-21swapper/110:45:411
148559960,6cyclictest0-21swapper/110:40:181
148559960,6cyclictest0-21swapper/110:00:151
148559960,6cyclictest0-21swapper/108:19:131
148559960,6cyclictest0-21swapper/107:45:381
148559960,5cyclictest0-21swapper/112:36:461
148559960,5cyclictest0-21swapper/109:05:141
148559960,4cyclictest0-21swapper/112:30:221
148559960,4cyclictest0-21swapper/109:55:111
148559960,3cyclictest0-21swapper/112:22:391
148559960,3cyclictest0-21swapper/109:15:091
148559960,1cyclictest0-21swapper/108:25:151
148559960,0cyclictest0-21swapper/110:51:361
148559960,0cyclictest0-21swapper/110:08:231
148469965,1cyclictest32091-21ssh10:20:450
148469965,1cyclictest10408-21ssh09:12:210
148469963,1cyclictest3558-21ntp_states07:50:170
148469962,2cyclictest26176-21load07:30:150
148469962,1cyclictest27731-21/usr/sbin/munin07:35:120
148469961,1cyclictest6920-21latency_hist08:00:000
148469960,6cyclictest0-21swapper/012:25:090
148469960,6cyclictest0-21swapper/007:45:590
148469960,4cyclictest0-21swapper/008:15:100
148469960,1cyclictest0-21swapper/008:30:090
148469960,1cyclictest0-21swapper/007:25:130
148469960,0cyclictest7697-21diskmemload10:15:100
148469960,0cyclictest7697-21diskmemload10:15:090
148469960,0cyclictest0-21swapper/008:35:190
148469960,0cyclictest0-21swapper/008:09:310
10754260,0sleep10-21swapper/111:19:141
30751250,0sleep10-21swapper/110:20:141
148709955,0cyclictest24022-21kworker/u8:210:07:083
148709955,0cyclictest0-21swapper/308:53:483
148709954,1cyclictest32258-21ssh11:05:063
148709953,1cyclictest3742-21run-parts07:50:183
148709953,1cyclictest26889-21grep07:30:213
148709953,1cyclictest16772-21aten_r1power_cu08:20:123
148709952,2cyclictest7697-21diskmemload10:55:203
148709951,2cyclictest0-21swapper/307:55:123
148709950,3cyclictest19123-21apt-get08:25:113
148709950,3cyclictest0-21swapper/309:05:143
148709950,1cyclictest240-21systemd-journal08:09:353
148709950,1cyclictest0-21swapper/308:40:113
148709950,1cyclictest0-21swapper/307:25:013
148639955,0cyclictest61650irq/122-eno107:41:472
148639955,0cyclictest61650irq/122-eno107:20:122
148639955,0cyclictest61650irq/122-eno107:20:112
148639954,1cyclictest61650irq/122-eno108:25:182
148639950,2cyclictest14383-21apt-get08:15:102
148559952,2cyclictest0-21swapper/107:40:001
148559952,0cyclictest0-21swapper/110:55:581
148559952,0cyclictest0-21swapper/108:41:381
148559951,2cyclictest0-21swapper/109:50:211
148559950,5cyclictest0-21swapper/111:40:461
148559950,5cyclictest0-21swapper/110:37:041
148559950,4cyclictest32160-21chrt08:50:181
148559950,3cyclictest0-21swapper/112:25:111
148559950,3cyclictest0-21swapper/111:55:151
148559950,3cyclictest0-21swapper/111:45:291
148559950,3cyclictest0-21swapper/111:37:021
148559950,3cyclictest0-21swapper/111:25:071
148559950,3cyclictest0-21swapper/108:25:011
148559950,2cyclictest0-21swapper/111:05:561
148559950,2cyclictest0-21swapper/111:00:071
148559950,2cyclictest0-21swapper/110:17:261
148559950,2cyclictest0-21swapper/110:17:261
148559950,2cyclictest0-21swapper/109:26:051
148559950,1cyclictest0-21swapper/112:07:031
148559950,1cyclictest0-21swapper/112:07:031
148559950,1cyclictest0-21swapper/111:22:161
148559950,1cyclictest0-21swapper/107:50:121
148559950,0cyclictest0-21swapper/109:14:271
148469950,5cyclictest0-21swapper/007:40:200
148469950,4cyclictest5567-21/usr/sbin/munin09:05:130
148469950,4cyclictest18095-21/usr/sbin/munin07:15:200
148469950,2cyclictest240-21systemd-journal08:02:050
148469950,0cyclictest0-21swapper/008:47:180
148709942,1cyclictest21976-21sh08:30:113
148709940,2cyclictest20956-21cstates07:20:143
148709940,2cyclictest20956-21cstates07:20:133
148709940,1cyclictest240-21systemd-journal07:45:003
148559944,0cyclictest0-21swapper/108:05:461
148559941,2cyclictest0-21swapper/107:55:111
148559941,1cyclictest0-21swapper/110:25:131
148559941,1cyclictest0-21swapper/109:00:121
148559940,4cyclictest0-21swapper/109:30:191
148559940,4cyclictest0-21swapper/108:10:201
148559940,3cyclictest0-21swapper/108:00:011
148559940,2cyclictest0-21swapper/111:30:121
148559940,2cyclictest0-21swapper/109:43:251
148559940,2cyclictest0-21swapper/108:35:151
148559940,2cyclictest0-21swapper/107:40:151
148559940,1cyclictest0-21swapper/108:30:151
148559940,1cyclictest0-21swapper/107:24:561
148559940,1cyclictest0-21swapper/107:24:551
148559931,1cyclictest0-21swapper/107:30:111
148559931,1cyclictest0-21swapper/107:25:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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