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2025-12-03 - 22:01
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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 376 highest latencies:
System rackeslot2.osadl.org (updated Wed Dec 03, 2025 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
32031782980,1sleep10-21swapper/108:10:151
33154612360,2sleep30-21swapper/309:30:203
3126553992623,2cyclictest3126550-21cyclictest11:10:001
3126552992614,5cyclictest3608261-21cut12:20:020
3126552992514,4cyclictest3460008-21cpuspeed_turbos10:55:110
3126552992511,5cyclictest0-21swapper/010:30:010
3126553992421,2cyclictest1652-1atopacctd10:10:271
3126553992416,3cyclictest0-21swapper/112:25:201
312655299249,6cyclictest0-21swapper/011:05:180
3126552992422,1cyclictest3269545-21gpgconf09:05:010
3126552992415,1cyclictest0-21swapper/008:55:260
3126552992414,5cyclictest3444662-21kthreadcore10:45:200
3126553992320,2cyclictest3126550-21cyclictest11:00:001
3126553992317,2cyclictest170550irq/121-eno109:10:011
3126553992314,4cyclictest170550irq/121-eno109:20:011
3126552992313,1cyclictest0-21swapper/007:45:180
3126552992310,5cyclictest3355894-21if_enp1s009:55:200
3126553992214,2cyclictest170550irq/121-eno109:30:181
3126553992212,4cyclictest3339799-21cut09:45:171
312655299228,4cyclictest0-21swapper/010:20:090
312655299227,6cyclictest3512099-21/usr/sbin/munin11:25:280
312655299227,6cyclictest0-21swapper/011:10:210
3126552992219,2cyclictest3238571-21cron08:40:010
3126552992216,1cyclictest3165948-21apt-get07:40:100
3126552992213,5cyclictest3529773-21/usr/sbin/munin11:35:180
3126552992211,4cyclictest3349586-21kthreadcore09:50:180
36017742210,2sleep20-21swapper/212:15:192
3126553992116,1cyclictest191rcu_preempt07:20:011
3126553992115,2cyclictest170550irq/121-eno112:05:291
312655299218,5cyclictest0-21swapper/010:35:010
312655299218,4cyclictest0-21swapper/011:30:110
312655299218,4cyclictest0-21swapper/008:10:110
312655299216,6cyclictest3316322-21/usr/sbin/munin09:30:230
3126552992118,2cyclictest3251104-21/usr/sbin/munin08:50:000
3126552992117,3cyclictest3546976-21systemd-run11:45:000
3126552992110,6cyclictest0-21swapper/012:35:010
3126554992017,1cyclictest0-21swapper/210:00:002
312655399209,5cyclictest3362506-1ssh09:58:421
312655399207,4cyclictest2033-21lldpd10:03:021
312655399206,9cyclictest2035-21sshd11:04:211
3126553992017,2cyclictest3532969-21runrttasks11:35:181
3126553992017,2cyclictest3494377-21cron11:15:001
3126553992016,3cyclictest3450718-21systemd-run10:50:011
3126553992014,2cyclictest170550irq/121-eno112:30:181
3126553992010,4cyclictest3213950-21sshd08:16:221
3126553992010,3cyclictest3244769-21latency_hist08:45:011
312655299209,5cyclictest3126550-21cyclictest12:25:180
312655299209,3cyclictest0-21swapper/012:10:120
3126552992011,5cyclictest3307359-21grep09:25:190
3126553991916,2cyclictest3529119-21cron11:35:001
3126553991916,2cyclictest3419766-21kthreadcore10:30:181
3126553991916,2cyclictest3227493-21gltestperf08:30:211
3126553991916,2cyclictest3189930-21cron08:00:011
3126553991912,2cyclictest3403556-21sh10:20:201
3126553991912,2cyclictest170550irq/121-eno112:10:161
3126553991910,4cyclictest3547559-21aten2.4-expect11:45:111
312655399190,1cyclictest0-21swapper/110:28:561
312655299198,4cyclictest0-21swapper/009:10:010
312655299197,5cyclictest0-21swapper/010:10:140
312655299196,5cyclictest0-21swapper/010:08:320
312655299195,9cyclictest3244684-21latency_hist08:45:010
3126552991915,2cyclictest3495642-21idleruntime11:15:220
302487291190,2phc2sys0-21swapper/310:43:593
3126554991815,1cyclictest0-21swapper/212:35:202
3126554991815,1cyclictest0-21swapper/209:14:092
312655399186,3cyclictest0-21swapper/109:20:171
3126553991815,2cyclictest3520455-21dump-pmu-power11:30:001
3126553991815,2cyclictest3250811-21apt-key08:50:001
3126553991814,3cyclictest0-21swapper/109:55:011
3126553991811,2cyclictest351ktimers/109:38:561
312655299186,5cyclictest0-21swapper/011:56:350
312655299186,5cyclictest0-21swapper/009:12:180
312655299185,5cyclictest0-21swapper/007:58:210
312655299185,2cyclictest0-21swapper/010:39:140
312655299185,1cyclictest0-21swapper/012:09:430
312655299184,7cyclictest0-21swapper/010:19:150
312655299181,5cyclictest3555434-21rm11:49:240
3126552991815,2cyclictest3582164-21latency_hist12:05:010
3126552991815,2cyclictest3126550-21cyclictest07:25:000
302487291180,2phc2sys0-21swapper/310:25:563
302487291180,2phc2sys0-21swapper/309:17:213
3126554991714,1cyclictest0-21swapper/211:55:002
3126554991714,1cyclictest0-21swapper/211:25:282
3126554991714,1cyclictest0-21swapper/208:40:012
3126554991713,2cyclictest0-21swapper/209:34:452
312655399178,2cyclictest170550irq/121-eno108:00:201
312655399175,7cyclictest3570572-21diskmemload11:55:301
312655399175,6cyclictest3372113-21kworker/u16:0+rpciod11:24:341
312655399175,5cyclictest3302582-21aten2.4-expect09:25:111
312655399173,8cyclictest3196536-21aten2.4-expect08:05:111
312655399172,3cyclictest3280217-21kthreadcore09:10:191
312655399171,6cyclictest1-21systemd10:45:011
3126553991714,2cyclictest3634842-21cpuspeed_turbos12:35:131
3126553991714,2cyclictest3275595-21diskmemload10:50:181
3126553991714,2cyclictest1661-21polkitd12:00:231
3126553991713,3cyclictest3329977-21kthreadcore09:40:201
312655399171,10cyclictest3599952-21aten2.4-expect12:15:131
312655399170,6cyclictest3258184-21cut08:55:261
312655299178,2cyclictest0-21swapper/011:24:390
312655299174,1cyclictest0-21swapper/009:35:460
312655299174,1cyclictest0-21swapper/009:24:520
312655299174,1cyclictest0-21swapper/009:19:110
312655299173,7cyclictest3639823-21ssh12:35:240
312655299173,6cyclictest0-21swapper/008:20:240
3126552991714,2cyclictest3337910-21df_inode09:45:130
3126552991714,2cyclictest1652-1atopacctd11:50:110
3126552991711,5cyclictest3608909-21cstates12:20:120
312655299170,5cyclictest3141173-21latency_hist07:20:010
302487291170,4phc2sys0-21swapper/311:28:003
302487291170,3phc2sys0-21swapper/309:50:283
302487291170,2phc2sys0-21swapper/311:50:513
302487291170,2phc2sys0-21swapper/309:12:573
3126554991614,1cyclictest0-21swapper/211:20:152
3126554991614,1cyclictest0-21swapper/211:10:012
3126554991614,1cyclictest0-21swapper/209:55:012
3126554991613,2cyclictest0-21swapper/208:25:022
3126554991613,1cyclictest0-21swapper/212:30:002
3126554991613,1cyclictest0-21swapper/211:30:192
3126554991613,1cyclictest0-21swapper/210:45:142
3126554991613,1cyclictest0-21swapper/210:25:002
3126554991613,1cyclictest0-21swapper/210:10:202
3126554991613,1cyclictest0-21swapper/208:00:262
3126554991613,1cyclictest0-21swapper/207:30:142
3126554991612,2cyclictest0-21swapper/209:25:172
312655499161,12cyclictest3538058-21chrt11:39:562
312655399168,3cyclictest3426339-21kthreadcore10:35:181
312655399167,2cyclictest170550irq/121-eno111:44:041
312655399164,5cyclictest3556347-21aten2.4-expect11:50:111
312655399164,5cyclictest3214733-21aten2.4-expect08:20:131
312655399164,3cyclictest0-21swapper/111:15:311
312655399163,7cyclictest3608602-21aten2.4-expect12:20:111
312655399162,9cyclictest3232982-21aten2.4-expect08:35:111
3126553991613,2cyclictest3390195-21cpuspeed_turbos10:15:171
3126553991613,2cyclictest0-21swapper/108:30:001
3126553991612,3cyclictest3372427-21tail10:05:111
3126553991612,3cyclictest3152087-21latency07:25:471
3126553991612,3cyclictest0-21swapper/107:40:011
3126553991610,2cyclictest170550irq/121-eno107:10:121
312655299165,1cyclictest0-21swapper/008:15:220
312655299164,1cyclictest0-21swapper/011:00:250
312655299164,1cyclictest0-21swapper/010:54:160
312655299162,3cyclictest0-21swapper/010:42:200
3126552991613,2cyclictest0-21swapper/007:40:010
312655299160,2cyclictest3368480-21memory10:00:210
302487291160,3phc2sys0-21swapper/312:01:063
302487291160,3phc2sys0-21swapper/310:04:313
302487291160,2phc2sys0-21swapper/312:10:143
302487291160,2phc2sys0-21swapper/311:15:333
3126554991513,1cyclictest0-21swapper/211:55:192
3126554991513,1cyclictest0-21swapper/211:45:022
3126554991513,1cyclictest0-21swapper/207:10:122
3126554991512,1cyclictest0-21swapper/211:10:232
3126554991512,1cyclictest0-21swapper/210:30:182
3126554991512,1cyclictest0-21swapper/210:25:172
3126554991512,1cyclictest0-21swapper/210:05:182
3126554991512,1cyclictest0-21swapper/208:45:012
3126554991512,1cyclictest0-21swapper/207:30:002
3126554991511,2cyclictest0-21swapper/208:10:122
3126553991512,2cyclictest3265404-21kthreadcore09:00:171
3126553991511,3cyclictest3173326-21kthreadcore07:45:171
3126553991511,3cyclictest3167518-21kthreadcore07:40:341
3126552991513,1cyclictest0-21swapper/007:15:010
3126552991512,2cyclictest3331483-21kthreadcore09:40:210
3126552991512,2cyclictest3226466-21latency_hist08:30:010
3126552991512,2cyclictest3157061-21kthreadcore07:30:200
3126552991512,1cyclictest0-21swapper/007:10:010
312655299150,2cyclictest3195668-21users08:00:270
302487291151,1phc2sys0-21swapper/312:09:063
302487291150,4phc2sys0-21swapper/309:49:323
302487291150,3phc2sys0-21swapper/309:23:113
302487291150,2phc2sys0-21swapper/312:29:033
302487291150,2phc2sys0-21swapper/312:17:393
302487291150,2phc2sys0-21swapper/310:14:063
302487291150,2phc2sys0-21swapper/310:06:023
33343502141,6sleep30-21swapper/309:40:433
3126554991412,1cyclictest0-21swapper/208:50:012
3126554991412,1cyclictest0-21swapper/208:30:012
3126554991411,1cyclictest0-21swapper/212:30:092
3126554991411,1cyclictest0-21swapper/212:20:172
3126554991411,1cyclictest0-21swapper/212:05:192
3126554991411,1cyclictest0-21swapper/212:00:202
3126554991411,1cyclictest0-21swapper/211:00:152
3126554991411,1cyclictest0-21swapper/210:55:152
3126554991411,1cyclictest0-21swapper/210:52:212
3126554991411,1cyclictest0-21swapper/210:35:182
3126554991411,1cyclictest0-21swapper/210:00:202
3126554991411,1cyclictest0-21swapper/209:45:172
3126554991411,1cyclictest0-21swapper/209:40:212
3126554991411,1cyclictest0-21swapper/209:35:212
3126554991411,1cyclictest0-21swapper/209:20:162
3126554991411,1cyclictest0-21swapper/209:05:012
3126554991411,1cyclictest0-21swapper/208:35:022
312655399145,2cyclictest0-21swapper/107:20:121
312655399141,4cyclictest3178173-21aten2.4-expect07:50:101
3126553991410,3cyclictest3251625-21cpuspeed_turbos08:50:121
3126553991410,3cyclictest3251625-21cpuspeed_turbos08:50:121
3126553991410,3cyclictest3157188-21kthreadcore07:30:201
3126552991411,2cyclictest3256626-21unixbench-2d08:50:260
3126552991411,2cyclictest3256626-21unixbench-2d08:50:260
3126552991411,2cyclictest3185311-21kworker/u16:3-writeback08:35:010
302487291141,3phc2sys0-21swapper/307:50:023
302487291141,2phc2sys0-21swapper/308:35:503
302487291141,2phc2sys0-21swapper/308:01:363
302487291140,6phc2sys0-21swapper/308:15:103
302487291140,2phc2sys0-21swapper/312:30:333
302487291140,2phc2sys0-21swapper/311:37:133
302487291140,2phc2sys0-21swapper/308:40:033
3126554991311,1cyclictest0-21swapper/211:45:412
3126554991311,1cyclictest0-21swapper/211:15:252
3126554991311,1cyclictest0-21swapper/209:15:192
3126554991311,1cyclictest0-21swapper/208:55:012
3126554991311,1cyclictest0-21swapper/208:55:012
3126554991311,1cyclictest0-21swapper/207:35:212
3126554991311,1cyclictest0-21swapper/207:15:292
3126554991310,1cyclictest0-21swapper/212:15:012
3126554991310,1cyclictest0-21swapper/210:40:172
3126554991310,1cyclictest0-21swapper/210:15:092
3126554991310,1cyclictest0-21swapper/209:05:172
3126554991310,1cyclictest0-21swapper/208:15:172
3126554991310,1cyclictest0-21swapper/208:05:172
3126554991310,1cyclictest0-21swapper/207:55:172
3126554991310,1cyclictest0-21swapper/207:50:172
3126554991310,1cyclictest0-21swapper/207:40:342
3126554991310,1cyclictest0-21swapper/207:20:162
312655299138,2cyclictest170550irq/121-eno107:26:290
312655299135,2cyclictest3178174-21head07:50:100
3126552991310,2cyclictest3197798-21kthreadcore08:05:160
302487291133,2phc2sys0-21swapper/311:45:153
302487291132,3phc2sys0-21swapper/311:10:163
302487291131,2phc2sys0-21swapper/310:31:333
302487291130,2phc2sys0-21swapper/310:46:043
302487291130,2phc2sys0-21swapper/308:33:463
302487291130,2phc2sys0-21swapper/307:59:003
302487291130,2phc2sys0-21swapper/307:10:113
312655499129,1cyclictest0-21swapper/207:10:022
312655499128,2cyclictest0-21swapper/208:55:292
3126554991210,1cyclictest0-21swapper/207:45:192
302487291120,3phc2sys0-21swapper/307:38:313
302487291120,2phc2sys0-21swapper/312:38:423
302487291120,2phc2sys0-21swapper/311:41:263
302487291120,2phc2sys0-21swapper/310:23:033
302487291120,2phc2sys0-21swapper/307:44:253
302487291120,1phc2sys0-21swapper/308:12:303
312655399110,6cyclictest3126604-21munin-run07:10:011
302487291112,2phc2sys0-21swapper/310:50:203
302487291111,3phc2sys0-21swapper/310:55:133
302487291111,2phc2sys0-21swapper/311:06:563
302487291111,2phc2sys0-21swapper/309:25:253
302487291111,2phc2sys0-21swapper/307:25:503
302487291110,3phc2sys0-21swapper/311:00:183
302487291110,3phc2sys0-21swapper/309:38:073
302487291110,3phc2sys0-21swapper/308:20:123
302487291110,2phc2sys0-21swapper/307:30:113
302487291110,2phc2sys0-21swapper/307:20:253
302487291103,3phc2sys0-21swapper/308:55:003
302487291103,3phc2sys0-21swapper/308:55:003
302487291101,2phc2sys0-21swapper/312:22:193
302487291101,2phc2sys0-21swapper/310:17:503
302487291101,2phc2sys0-21swapper/309:55:183
302487291101,2phc2sys0-21swapper/307:20:013
302487291100,4phc2sys0-21swapper/309:00:103
302487291100,2phc2sys0-21swapper/311:59:093
302487291100,2phc2sys0-21swapper/311:35:013
302487291100,2phc2sys0-21swapper/311:22:273
302487291100,2phc2sys0-21swapper/310:36:343
302487291100,2phc2sys0-21swapper/308:45:123
30248729192,3phc2sys0-21swapper/309:05:113
30248729190,3phc2sys0-21swapper/308:05:163
30248729190,2phc2sys0-21swapper/308:55:103
30248729190,2phc2sys0-21swapper/308:25:133
30248729190,2phc2sys0-21swapper/307:50:183
30248729190,2phc2sys0-21swapper/307:05:143
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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