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2026-09-17 - 00:23
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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 rackeslot2.osadl.org (updated Wed Sep 16, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
8140062320,2sleep20-21swapper/211:44:272
6987952320,1sleep10-21swapper/110:39:281
7685742290,2sleep30-21swapper/311:19:273
7770212280,1sleep00-21swapper/011:24:250
37584299219,7cyclictest0-21swapper/011:30:390
375843992018,2cyclictest351ktimers/112:13:171
37584299208,7cyclictest0-21swapper/011:30:010
375842992011,5cyclictest699468-21kthreadcore10:39:290
2213291201,9phc2sys0-21swapper/309:54:053
4210662190,5sleep0241rcuc/007:44:220
4210662190,5sleep0241rcuc/007:44:220
37584499191,5cyclictest8463612sleep212:04:042
375843991912,3cyclictest825831-21proc_pri11:49:301
375843991912,3cyclictest825831-21proc_pri11:49:301
375843991910,4cyclictest625632-21/usr/sbin/munin09:59:271
37584299198,7cyclictest588686-21runrttasks09:35:260
375842991916,2cyclictest24813-21gsd-housekeepin09:28:170
375842991911,7cyclictest24616-21JS14:54:060
2213291190,3phc2sys0-21swapper/309:29:233
2213291190,2phc2sys0-21swapper/310:37:233
8179932180,2sleep10-21swapper/111:45:021
375843991815,2cyclictest24648-21gmain11:15:151
375843991810,6cyclictest24616-21JS14:54:061
37584299181,7cyclictest447990-21apt-get08:04:050
375842991815,2cyclictest24610-21gmain09:40:410
375842991814,3cyclictest635586-21irqcore10:04:240
375842991812,5cyclictest857787-21kthreadcore12:09:240
375842991812,4cyclictest520221-21tr08:54:270
375842991810,7cyclictest841852-21kthreadcore11:59:260
2213291181,8phc2sys0-21swapper/310:34:053
2213291181,8phc2sys0-21swapper/310:34:053
37584499179,4cyclictest0-21swapper/209:04:032
375844991715,1cyclictest0-21swapper/211:24:292
375844991714,1cyclictest0-21swapper/212:39:232
375844991714,1cyclictest0-21swapper/212:24:322
375844991714,1cyclictest0-21swapper/211:40:012
375843991715,2cyclictest351ktimers/109:49:451
375843991714,2cyclictest375840-21cyclictest10:09:261
375843991714,2cyclictest1188-21runrttasks10:53:421
375843991713,3cyclictest763068-21ssh11:14:281
375843991713,3cyclictest24617-21JS14:54:061
375843991712,3cyclictest559971-21kthreadcore09:19:281
37584299178,2cyclictest0-21swapper/012:39:260
37584299173,8cyclictest0-21swapper/010:14:050
375842991714,2cyclictest24813-21gsd-housekeepin09:05:170
375842991711,5cyclictest584702-21kthreadcore09:34:290
37584499162,7cyclictest0-21swapper/211:59:032
375844991613,2cyclictest0-21swapper/207:31:252
375844991613,1cyclictest0-21swapper/211:49:242
375844991613,1cyclictest0-21swapper/211:49:242
375844991613,1cyclictest0-21swapper/211:30:022
375844991613,1cyclictest0-21swapper/209:59:072
375844991613,1cyclictest0-21swapper/209:19:252
375844991611,2cyclictest0-21swapper/212:29:262
37584399169,2cyclictest82050irq/121-eno112:07:071
37584399164,11cyclictest82050irq/121-eno107:39:031
375843991613,2cyclictest862-21gmain08:32:181
375843991613,2cyclictest844188-21cron12:00:011
375843991613,2cyclictest433627-21systemd-run07:50:021
375843991612,3cyclictest655801-21kthreadcore10:14:281
375843991612,3cyclictest607724-21kworker/u16:0+nfsiod09:52:001
375843991612,3cyclictest538496-21idleruntime09:09:241
375843991612,3cyclictest530314-21kworker/u16:1+nfsiod09:10:271
375843991612,3cyclictest510136-21aten_repower_cu08:49:061
375843991612,3cyclictest193293-21kworker/u16:3+nfsiod10:40:161
37584299167,2cyclictest0-21swapper/009:59:290
37584299165,6cyclictest0-21swapper/010:19:040
375842991613,2cyclictest670661-21gltestperf10:24:230
375842991613,2cyclictest24472-21rtkit-daemon10:33:320
375842991613,2cyclictest24472-21rtkit-daemon10:33:320
375842991612,3cyclictest530314-21kworker/u16:1+nfsiod09:13:430
375842991610,3cyclictest682430-21kthreadcore10:29:280
375842991610,2cyclictest17850irq/132-ahci[0000:00:17.0]12:15:010
37584299160,10cyclictest543956-21diskmemload10:42:240
2213291160,2phc2sys0-21swapper/310:27:573
2213291160,2phc2sys0-21swapper/310:07:273
2213291160,2phc2sys0-21swapper/309:43:263
2213291160,2phc2sys0-21swapper/307:24:563
37584499151,6cyclictest0-21swapper/210:44:052
37584499151,4cyclictest0-21swapper/210:14:052
375844991513,1cyclictest0-21swapper/208:09:272
375844991512,1cyclictest0-21swapper/212:19:282
375844991512,1cyclictest0-21swapper/212:09:292
375844991512,1cyclictest0-21swapper/211:34:332
375844991512,1cyclictest0-21swapper/210:54:262
375844991512,1cyclictest0-21swapper/210:18:092
375844991512,1cyclictest0-21swapper/209:54:312
375844991512,1cyclictest0-21swapper/209:49:322
375844991512,1cyclictest0-21swapper/209:39:292
375844991512,1cyclictest0-21swapper/209:34:282
375844991512,1cyclictest0-21swapper/209:14:562
375844991512,1cyclictest0-21swapper/208:59:232
375844991512,1cyclictest0-21swapper/208:49:272
375844991512,1cyclictest0-21swapper/208:44:282
375844991512,1cyclictest0-21swapper/208:34:322
375844991512,1cyclictest0-21swapper/207:44:252
375844991512,1cyclictest0-21swapper/207:44:252
375844991511,2cyclictest0-21swapper/210:02:092
375844991511,2cyclictest0-21swapper/209:29:302
37584399157,3cyclictest0-21swapper/112:34:331
37584399152,8cyclictest474965-21awk08:20:001
375843991512,2cyclictest732592-21irqcore10:59:261
375843991512,2cyclictest530370-21/usr/sbin/munin09:00:021
375843991512,2cyclictest393540-21tail07:24:251
375843991512,2cyclictest3889-21cron11:34:561
375843991512,2cyclictest376-21systemd-journal08:40:031
375843991512,2cyclictest375840-21cyclictest10:27:171
375843991511,3cyclictest884988-21kthreadcore12:24:271
375843991511,3cyclictest876536-21kthreadcore12:19:281
375843991511,3cyclictest750251-21if_enp1s011:09:241
375843991511,3cyclictest741241-21gltestperf11:04:241
375843991511,3cyclictest607724-21kworker/u16:0+nfsiod10:20:441
375843991511,3cyclictest594082-21kthreadcore09:39:291
375843991511,3cyclictest530314-21kworker/u16:1+nfsiod10:48:241
375843991511,3cyclictest460544-21processes08:09:301
375843991511,3cyclictest426007-21phc2sys07:44:291
375843991511,3cyclictest426007-21phc2sys07:44:291
375843991511,3cyclictest409624-21kthreadcore07:34:301
375843991511,3cyclictest402976-21kthreadcore07:29:281
375843991511,3cyclictest390550-21kthreadcore07:19:271
375843991511,2cyclictest0-21swapper/112:05:021
37584399150,14cyclictest0-21swapper/107:52:131
37584299159,5cyclictest758040-21/usr/sbin/munin11:14:220
37584299159,5cyclictest470022-21kthreadcore08:19:280
37584299158,2cyclictest0-21swapper/009:54:130
37584299157,2cyclictest0-21swapper/011:04:270
37584299156,4cyclictest0-21swapper/011:40:450
37584299155,4cyclictest0-21swapper/011:06:090
37584299153,7cyclictest0-21swapper/010:09:260
375842991512,2cyclictest801403-21sshd-session11:37:110
375842991512,2cyclictest718249-21kthreadcore10:49:260
375842991512,2cyclictest543956-21diskmemload12:34:170
375842991512,2cyclictest502146-21mailstats08:39:330
375842991512,2cyclictest24614-21JS14:54:060
375842991512,2cyclictest24472-21rtkit-daemon08:22:260
375842991512,2cyclictest1188-21runrttasks09:46:140
375842991511,3cyclictest558110-21kthreadcore09:19:270
375842991511,3cyclictest530314-21kworker/u16:1+nfsiod12:16:510
375842991511,3cyclictest458514-21kthreadcore08:09:270
375842991511,3cyclictest428308-21irqcore07:49:220
375842991511,3cyclictest384780-21kthreadcore07:15:040
375842991511,3cyclictest24617-21JS14:54:060
2213291152,2phc2sys0-21swapper/309:22:513
2213291150,2phc2sys0-21swapper/311:27:373
2213291150,2phc2sys0-21swapper/311:09:473
2213291150,2phc2sys0-21swapper/311:01:563
2213291150,2phc2sys0-21swapper/310:13:103
2213291150,1phc2sys0-21swapper/307:09:363
37584499143,7cyclictest0-21swapper/211:14:042
37584499141,2cyclictest0-21swapper/211:09:052
375844991412,1cyclictest0-21swapper/207:59:282
375844991411,1cyclictest0-21swapper/212:34:272
375844991411,1cyclictest0-21swapper/211:04:222
375844991411,1cyclictest0-21swapper/210:59:302
375844991411,1cyclictest0-21swapper/210:25:012
375844991411,1cyclictest0-21swapper/208:29:252
375844991411,1cyclictest0-21swapper/208:24:342
375844991411,1cyclictest0-21swapper/208:19:222
375844991411,1cyclictest0-21swapper/207:54:272
375844991411,1cyclictest0-21swapper/207:19:262
375844991410,2cyclictest0-21swapper/208:10:252
37584399143,5cyclictest634501-21aten2.4-expect10:04:041
375843991411,2cyclictest503859-21fschecks_time08:44:241
375843991411,2cyclictest24472-21rtkit-daemon09:26:001
375843991411,2cyclictest1-21systemd08:04:321
375843991410,3cyclictest912075-21kthreadcore12:39:261
375843991410,3cyclictest891988-21irqrtprio12:29:251
375843991410,3cyclictest828879-21tail11:54:091
375843991410,3cyclictest828879-21tail11:54:091
375843991410,3cyclictest808384-21switchtime11:39:321
375843991410,3cyclictest729425-21kworker/u16:0+nfsiod11:25:451
375843991410,3cyclictest691244-21kthreadcore10:34:281
375843991410,3cyclictest691244-21kthreadcore10:34:281
375843991410,3cyclictest563858-21apt-get09:24:031
375843991410,3cyclictest518265-21irqrtprio08:54:251
375843991410,3cyclictest480079-21kthreadcore08:24:281
375843991410,3cyclictest442234-21irqrtprio07:59:261
375843991410,3cyclictest377437-21irqcore07:14:251
375843991410,3cyclictest377437-21irqcore07:14:251
375843991410,3cyclictest193293-21kworker/u16:3+nfsiod09:44:201
37584399140,1cyclictest0-21swapper/110:15:101
37584299147,2cyclictest0-21swapper/012:01:050
37584299146,7cyclictest24648-21gmain10:59:230
37584299144,8cyclictest883241-21cut12:24:250
37584299141,8cyclictest766667-21sshd-session11:18:260
37584299141,7cyclictest0-21swapper/012:28:100
37584299141,3cyclictest800323-21kworker/u16:3-events_unbound11:50:040
37584299141,3cyclictest800323-21kworker/u16:3-events_unbound11:50:040
375842991411,2cyclictest821420-21kthreadcore11:49:250
375842991411,2cyclictest821420-21kthreadcore11:49:250
375842991411,2cyclictest724092-21irqrtprio10:54:250
375842991411,2cyclictest513147-21kthreadcore08:49:280
375842991411,2cyclictest463076-21kthreadcore08:14:270
375842991411,2cyclictest444105-21kthreadcore07:59:280
375842991411,2cyclictest434847-21cut07:54:240
375842991411,2cyclictest414845-21kthreadcore07:39:270
375842991411,2cyclictest393462-21gltestperf07:24:240
375842991411,2cyclictest377737-21kthreadcore07:14:260
375842991411,2cyclictest377737-21kthreadcore07:14:260
375842991410,3cyclictest506046-21kthreadcore08:44:280
375842991410,3cyclictest491142-21kthreadcore08:34:280
375842991410,3cyclictest403824-21kthreadcore07:29:280
2213291145,2phc2sys0-21swapper/311:22:283
2213291141,5phc2sys0-21swapper/307:39:043
2213291140,2phc2sys0-21swapper/311:52:383
2213291140,2phc2sys0-21swapper/311:52:383
2213291140,2phc2sys0-21swapper/308:10:313
37584499137,2cyclictest0-21swapper/207:29:052
37584499131,7cyclictest0-21swapper/209:09:042
37584499131,5cyclictest0-21swapper/210:49:032
375844991311,1cyclictest0-21swapper/210:10:022
375844991311,1cyclictest0-21swapper/208:54:272
375844991311,1cyclictest0-21swapper/208:39:302
375844991310,2cyclictest0-21swapper/209:24:292
375844991310,1cyclictest0-21swapper/212:14:272
375844991310,1cyclictest0-21swapper/211:53:092
375844991310,1cyclictest0-21swapper/211:53:092
375844991310,1cyclictest0-21swapper/211:19:272
375844991310,1cyclictest0-21swapper/210:34:242
375844991310,1cyclictest0-21swapper/210:34:242
375844991310,1cyclictest0-21swapper/210:29:272
375844991310,1cyclictest0-21swapper/208:04:262
375844991310,1cyclictest0-21swapper/207:47:272
375844991310,1cyclictest0-21swapper/207:39:252
375844991310,1cyclictest0-21swapper/207:24:262
375844991310,1cyclictest0-21swapper/207:14:272
375844991310,1cyclictest0-21swapper/207:14:272
37584399139,3cyclictest484836-21kthreadcore08:29:241
37584399134,7cyclictest584233-21cut09:34:281
375843991310,2cyclictest0-21swapper/111:24:271
37584299137,4cyclictest535838-21cut09:04:270
37584299131,7cyclictest482474-21/usr/sbin/munin08:29:020
3694652130,6sleep20-21swapper/207:09:062
2213291132,2phc2sys0-21swapper/309:59:033
2213291131,3phc2sys0-21swapper/309:09:043
2213291130,6phc2sys0-21swapper/312:04:053
2213291130,3phc2sys0-21swapper/311:14:033
2213291130,3phc2sys0-21swapper/308:39:053
2213291130,2phc2sys0-21swapper/312:35:103
2213291130,2phc2sys0-21swapper/311:30:303
2213291130,1phc2sys0-21swapper/308:21:183
37584499129,1cyclictest0-21swapper/210:37:132
375844991210,1cyclictest0-21swapper/209:44:272
2213291120,3phc2sys0-21swapper/312:29:043
2213291120,2phc2sys0-21swapper/312:17:373
2213291120,2phc2sys0-21swapper/310:50:183
2213291120,2phc2sys0-21swapper/309:34:053
2213291120,2phc2sys0-21swapper/307:34:093
2213291120,1phc2sys0-21swapper/307:54:083
2213291120,1phc2sys0-21swapper/307:19:183
37584299115,2cyclictest17850irq/132-ahci[0000:00:17.0]07:10:010
2213291112,2phc2sys0-21swapper/310:44:243
2213291111,3phc2sys0-21swapper/309:12:533
2213291111,2phc2sys0-21swapper/309:00:023
2213291110,5phc2sys0-21swapper/311:49:043
2213291110,5phc2sys0-21swapper/311:49:043
2213291110,4phc2sys0-21swapper/311:44:053
2213291110,2phc2sys0-21swapper/312:20:303
2213291110,2phc2sys0-21swapper/310:24:043
2213291110,2phc2sys0-21swapper/309:39:303
2213291110,2phc2sys0-21swapper/308:19:053
2213291110,1phc2sys0-21swapper/310:58:313
2213291110,1phc2sys0-21swapper/308:52:083
2213291110,1phc2sys0-21swapper/307:55:213
37584399104,2cyclictest17850irq/132-ahci[0000:00:17.0]07:10:021
2213291101,3phc2sys0-21swapper/310:49:023
2213291101,3phc2sys0-21swapper/309:04:043
2213291101,2phc2sys0-21swapper/307:14:333
2213291101,2phc2sys0-21swapper/307:14:333
2213291100,2phc2sys0-21swapper/312:31:403
2213291100,2phc2sys0-21swapper/312:11:123
2213291100,2phc2sys0-21swapper/312:06:113
2213291100,2phc2sys0-21swapper/311:35:443
2213291100,2phc2sys0-21swapper/310:19:153
2213291100,2phc2sys0-21swapper/310:01:313
2213291100,2phc2sys0-21swapper/309:47:163
2213291100,2phc2sys0-21swapper/309:16:463
2213291100,2phc2sys0-21swapper/308:44:183
2213291100,2phc2sys0-21swapper/308:04:263
221329190,2phc2sys0-21swapper/311:55:123
221329190,2phc2sys0-21swapper/308:09:033
221329190,2phc2sys0-21swapper/307:45:033
221329190,2phc2sys0-21swapper/307:25:033
221329190,1phc2sys0-21swapper/308:49:113
221329190,1phc2sys0-21swapper/308:26:193
221329190,1phc2sys0-21swapper/307:43:583
221329190,1phc2sys0-21swapper/307:43:583
221329180,1phc2sys0-21swapper/308:30:473
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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