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2026-03-13 - 00:02
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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 rackeslot2.osadl.org (updated Thu Mar 12, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
76371121110,2sleep30-21swapper/308:41:493
76371121110,2sleep30-21swapper/308:41:493
9894222990,2sleep30-21swapper/311:00:003
9895672960,1sleep00-21swapper/011:00:010
647100992717,2cyclictest134050irq/121-eno111:41:461
647099992411,9cyclictest0-21swapper/012:35:020
647100992317,2cyclictest134050irq/121-eno110:56:451
64709999234,9cyclictest1091639-21tr11:56:460
647101992219,1cyclictest0-21swapper/208:10:002
647100992211,3cyclictest0-21swapper/110:11:451
647099992213,5cyclictest1039383-21pmu-power11:26:470
647099992213,5cyclictest1039383-21pmu-power11:26:470
647099992211,6cyclictest0-21swapper/010:20:020
64709999218,6cyclictest4114978-21snmpd08:56:150
647099992118,2cyclictest1165864-21apt-get12:40:010
647099992118,2cyclictest0-21swapper/011:20:010
647099992118,2cyclictest0-21swapper/009:45:010
647101992017,1cyclictest0-21swapper/212:35:012
647100992017,2cyclictest661753-21/usr/sbin/munin07:21:461
647100992015,3cyclictest866700-21/usr/sbin/munin09:51:431
647099992015,3cyclictest0-21swapper/012:25:010
64710199191,8cyclictest0-21swapper/209:30:012
647101991916,1cyclictest0-21swapper/210:15:002
647101991916,1cyclictest0-21swapper/209:45:012
647100991916,2cyclictest1156905-21apt-config12:35:011
647100991916,2cyclictest1121250-21latency_hist12:15:001
64709999199,6cyclictest1068442-21munin-run11:45:010
64709999199,4cyclictest746536-21tail08:31:350
64709999196,7cyclictest951193-21pmu-power10:36:460
647099991916,2cyclictest971508-21ssh10:50:000
647099991913,5cyclictest807273-21kthreadcore09:16:420
2902298190,3rtkit-daemon647097-21cyclictest08:18:221
2649091190,2phc2sys0-21swapper/309:25:593
64710199181,5cyclictest0-21swapper/211:30:012
64710199181,5cyclictest0-21swapper/211:30:012
647101991815,1cyclictest0-21swapper/207:20:022
647100991815,2cyclictest1290-21dbus-daemon11:25:001
647100991815,2cyclictest1288-1atopacctd11:10:001
647100991813,3cyclictest1288-1atopacctd11:11:441
64709999189,2cyclictest134050irq/121-eno109:11:360
64709999188,5cyclictest0-21swapper/010:01:430
64709999187,6cyclictest0-21swapper/012:01:240
64709999185,6cyclictest1009727-21cut11:11:420
64709999182,10cyclictest1044149-21cat11:31:410
647099991815,2cyclictest1290-21dbus-daemon09:10:010
647099991815,2cyclictest1-21systemd11:50:020
647099991815,2cyclictest0-21swapper/008:50:000
647099991813,1cyclictest1109-21hwrng11:05:340
647099991812,2cyclictest794543-21diskmemload09:39:360
647099991810,7cyclictest0-21swapper/010:10:020
2649091180,2phc2sys0-21swapper/309:17:543
64710199172,7cyclictest0-21swapper/211:00:012
64710199171,7cyclictest0-21swapper/207:40:012
647101991714,1cyclictest0-21swapper/210:10:002
647101991714,1cyclictest0-21swapper/209:05:012
647101991714,1cyclictest0-21swapper/208:15:012
647101991714,1cyclictest0-21swapper/207:56:452
647100991715,1cyclictest953788-21munin-plugin-st10:40:011
647100991714,2cyclictest889512-21/usr/sbin/munin10:01:471
647100991714,2cyclictest752012-21grep08:35:011
647100991714,2cyclictest661389-21latency_hist07:20:001
647100991714,2cyclictest653369-21/usr/sbin/munin07:15:011
647100991714,2cyclictest1329-21rs:main1
647100991714,2cyclictest1048478-21timerandwakeup11:31:491
647100991714,2cyclictest1037306-21kthreadcore11:26:451
647100991714,2cyclictest1037306-21kthreadcore11:26:451
647100991714,2cyclictest1024096-21apt-key11:20:011
647100991713,3cyclictest647097-21cyclictest09:15:011
647100991713,2cyclictest788711-21latency_hist09:05:011
64709999175,6cyclictest647585-21aten2.4-expect07:11:370
64709999175,4cyclictest0-21swapper/010:41:460
64709999174,6cyclictest876158-21expr09:56:380
64709999172,7cyclictest1-21systemd09:50:010
647099991715,1cyclictest0-21swapper/010:15:000
647099991714,2cyclictest753321-21irqcore08:36:410
647099991714,2cyclictest739955-21latency_hist08:25:000
647099991713,3cyclictest823805-21kthreadcore09:26:430
647099991711,5cyclictest0-21swapper/011:51:470
647099991710,2cyclictest171ktimers/012:13:530
2902298170,2rtkit-daemon0-21swapper/111:45:511
2649091171,1phc2sys0-21swapper/310:06:343
2649091170,2phc2sys0-21swapper/310:40:053
2649091170,2phc2sys0-21swapper/310:35:473
2649091170,2phc2sys0-21swapper/309:23:473
2649091170,2phc2sys0-21swapper/309:23:473
2649091170,1phc2sys0-21swapper/309:58:583
64710199162,7cyclictest0-21swapper/212:10:012
64710199162,7cyclictest0-21swapper/211:20:012
647101991614,1cyclictest0-21swapper/209:50:022
647101991614,1cyclictest0-21swapper/208:50:012
647101991613,1cyclictest0-21swapper/211:53:492
647101991613,1cyclictest0-21swapper/210:31:432
647101991613,1cyclictest0-21swapper/210:21:372
647101991613,1cyclictest0-21swapper/208:29:552
647101991613,1cyclictest0-21swapper/207:35:022
647100991613,2cyclictest972793-21/usr/sbin/munin10:51:451
647100991613,2cyclictest941000-21kthreadcore10:31:441
647100991613,2cyclictest717495-21kthreadcore08:06:431
647100991613,2cyclictest1327-21in:imuxsock08:50:011
647100991613,2cyclictest1327-21in:imuxsock08:01:441
647100991613,2cyclictest1326-21systemd-logind07:55:001
647100991613,2cyclictest1288-1atopacctd09:18:071
647100991613,2cyclictest0-21swapper/112:00:011
647100991612,3cyclictest758215-21kworker/u16:1+nfsiod09:34:091
647100991612,3cyclictest726489-21kthreadcore08:11:441
647100991612,3cyclictest1025001-21kworker/u16:3+nfsiod12:26:071
647100991611,3cyclictest849970-21irqcore09:41:411
64709999169,6cyclictest1288-1atopacctd09:30:040
64709999168,7cyclictest1056507-21kthreadcore11:36:440
64709999168,3cyclictest758485-21/usr/sbin/munin08:41:370
64709999168,3cyclictest758485-21/usr/sbin/munin08:41:370
64709999167,4cyclictest134050irq/121-eno111:21:370
64709999164,7cyclictest686103-21aten2.4-expect07:41:360
64709999163,8cyclictest171ktimers/010:33:450
647099991613,2cyclictest0-21swapper/010:30:020
647099991613,2cyclictest0-21swapper/009:05:000
647099991612,3cyclictest1288-1atopacctd07:16:440
64709999160,7cyclictest993499-21tr11:01:420
2902298160,2rtkit-daemon0-21swapper/107:48:141
2649091160,4phc2sys0-21swapper/311:45:073
2649091160,4phc2sys0-21swapper/309:32:523
2649091160,3phc2sys0-21swapper/312:06:383
2649091160,3phc2sys0-21swapper/311:15:213
2649091160,2phc2sys0-21swapper/311:24:393
7511542150,2sleep30-21swapper/308:31:443
64710199151,9cyclictest0-21swapper/210:50:012
647101991513,1cyclictest0-21swapper/208:40:012
647101991512,1cyclictest0-21swapper/212:35:452
647101991512,1cyclictest0-21swapper/211:56:202
647101991512,1cyclictest0-21swapper/211:10:012
647101991512,1cyclictest0-21swapper/210:41:382
647101991512,1cyclictest0-21swapper/210:26:452
647101991512,1cyclictest0-21swapper/209:12:172
647101991512,1cyclictest0-21swapper/207:45:012
647101991511,2cyclictest0-21swapper/210:01:412
64710199150,12cyclictest0-21swapper/212:11:412
64710099159,5cyclictest827357-21pmu-power09:26:461
647100991513,1cyclictest962772-21latency_hist10:45:001
647100991513,1cyclictest794543-21diskmemload12:06:171
647100991512,2cyclictest875854-21sort09:56:381
647100991512,2cyclictest860664-21kthreadcore09:46:431
647100991512,2cyclictest847752-21cut09:40:011
647100991512,2cyclictest758204-21latency_hist08:40:001
647100991512,2cyclictest741679-21kthreadcore08:26:441
647100991512,2cyclictest1313-21gmain12:00:021
647100991512,2cyclictest1136539-21mailstats12:21:481
647100991511,3cyclictest771818-21irqcore08:51:411
647100991511,3cyclictest760549-21kthreadcore08:41:431
647100991511,3cyclictest760549-21kthreadcore08:41:431
647100991511,3cyclictest1125895-21kthreadcore12:16:431
64709999158,6cyclictest0-21swapper/008:01:370
64709999157,4cyclictest775497-21cat08:51:450
64709999155,6cyclictest681140-21cut07:36:420
64709999153,7cyclictest0-21swapper/010:21:360
647099991512,2cyclictest867432-21gltestperf09:51:400
647099991512,2cyclictest716304-21aten_repower_po08:06:370
647099991512,2cyclictest668539-21gltestperf07:26:410
647099991510,4cyclictest729566-21kernelversion08:16:430
647099991510,4cyclictest725168-21kthreadcore08:11:440
647099991510,1cyclictest794543-21diskmemload10:51:080
64709999150,6cyclictest665934-21kthreadcore07:21:440
64709999150,5cyclictest1141937-21kthreadcore12:26:430
2649091150,3phc2sys0-21swapper/311:32:033
2649091150,2phc2sys0-21swapper/312:27:483
64710199141,4cyclictest0-21swapper/210:00:012
647101991412,1cyclictest0-21swapper/209:51:452
647101991412,1cyclictest0-21swapper/207:15:022
647101991411,1cyclictest0-21swapper/211:21:422
647101991411,1cyclictest0-21swapper/211:01:362
647101991411,1cyclictest0-21swapper/210:51:422
647101991411,1cyclictest0-21swapper/210:36:422
647101991411,1cyclictest0-21swapper/210:16:402
647101991411,1cyclictest0-21swapper/208:20:022
647101991411,1cyclictest0-21swapper/208:05:002
647101991411,1cyclictest0-21swapper/207:51:422
647101991411,1cyclictest0-21swapper/207:46:372
647101991410,2cyclictest0-21swapper/212:01:412
64710199140,6cyclictest0-21swapper/209:10:012
64710199140,12cyclictest0-21swapper/212:15:122
64710099148,5cyclictest737195-21tr08:21:421
64710099147,6cyclictest1159972-21tr12:36:421
647100991411,2cyclictest991920-21kthreadcore11:01:411
647100991411,2cyclictest914645-21kthreadcore10:16:431
647100991411,2cyclictest896713-21kthreadcore10:06:441
647100991411,2cyclictest778575-21kthreadcore08:56:431
647100991411,2cyclictest687143-21irqrtprio07:41:411
647100991411,2cyclictest1081163-21kthreadcore11:51:431
647100991410,3cyclictest816496-21kthreadcore09:21:441
647100991410,3cyclictest816496-21kthreadcore09:21:441
647100991410,3cyclictest758215-21kworker/u16:1+nfsiod10:28:211
647100991410,3cyclictest758215-21kworker/u16:1+nfsiod10:24:531
647100991410,3cyclictest684736-21pmu-power07:36:461
64710099140,2cyclictest0-21swapper/109:05:341
64709999146,5cyclictest1124614-21cat12:16:420
64709999145,2cyclictest0-21swapper/007:56:480
64709999144,5cyclictest134050irq/121-eno112:09:230
647099991411,2cyclictest814742-21irqcore09:21:420
647099991411,2cyclictest814742-21irqcore09:21:420
647099991411,2cyclictest740932-21fschecks_count08:26:400
647099991411,2cyclictest676625-21tr07:31:430
647099991411,2cyclictest647158-21systemd-run07:10:010
647099991411,2cyclictest647158-21systemd-run07:10:010
2649091142,2phc2sys0-21swapper/312:19:093
2649091141,3phc2sys0-21swapper/309:51:363
2649091141,3phc2sys0-21swapper/307:16:353
2649091140,2phc2sys0-21swapper/310:01:423
647101991311,1cyclictest0-21swapper/211:32:542
647101991310,1cyclictest0-21swapper/212:27:142
647101991310,1cyclictest0-21swapper/211:11:412
647101991310,1cyclictest0-21swapper/209:36:262
647101991310,1cyclictest0-21swapper/209:31:352
647101991310,1cyclictest0-21swapper/209:21:412
647101991310,1cyclictest0-21swapper/209:21:412
647101991310,1cyclictest0-21swapper/207:26:442
64710199130,6cyclictest0-21swapper/209:20:012
64710099139,3cyclictest965324-21kthreadcore10:46:441
64710099139,3cyclictest954998-21kworker/u16:2+nfsiod11:35:301
647100991310,2cyclictest704223-21aten_repower_po07:56:371
64709999137,2cyclictest491rcuog/207:51:360
647099991310,2cyclictest695823-21kthreadcore07:46:440
2649091138,2phc2sys0-21swapper/308:21:423
2649091131,3phc2sys0-21swapper/310:26:353
2649091130,3phc2sys0-21swapper/312:31:363
2649091130,2phc2sys0-21swapper/311:06:273
2649091130,2phc2sys0-21swapper/310:34:483
2649091130,2phc2sys0-21swapper/309:43:073
64710199129,2cyclictest0-21swapper/207:21:432
64710199129,1cyclictest0-21swapper/212:20:252
64710199129,1cyclictest0-21swapper/211:36:372
64710199129,1cyclictest0-21swapper/208:51:422
64710199129,1cyclictest0-21swapper/208:31:362
647101991210,1cyclictest0-21swapper/211:41:422
647101991210,1cyclictest0-21swapper/208:56:372
647101991210,1cyclictest0-21swapper/208:41:402
647101991210,1cyclictest0-21swapper/208:41:402
647101991210,1cyclictest0-21swapper/208:21:362
64710099129,2cyclictest668446-21fschecks_time07:26:401
2649091120,2phc2sys0-21swapper/307:48:013
2649091120,1phc2sys0-21swapper/308:13:183
9726022110,2sleep30-21swapper/310:51:193
64710199119,1cyclictest0-21swapper/211:46:422
64710199111,5cyclictest0-21swapper/207:10:012
64710199111,5cyclictest0-21swapper/207:10:012
64710099115,5cyclictest1-21systemd07:10:001
64710099115,5cyclictest1-21systemd07:10:001
2649091112,2phc2sys0-21swapper/310:46:433
2649091112,2phc2sys0-21swapper/309:10:323
2649091111,2phc2sys0-21swapper/310:21:303
2649091110,2phc2sys0-21swapper/312:37:213
2649091110,2phc2sys0-21swapper/312:13:103
2649091110,2phc2sys0-21swapper/311:56:263
2649091110,2phc2sys0-21swapper/311:10:483
2649091110,2phc2sys0-21swapper/310:14:073
2649091110,2phc2sys0-21swapper/309:38:223
2649091110,2phc2sys0-21swapper/308:51:453
2649091101,3phc2sys0-21swapper/312:01:063
2649091101,2phc2sys0-21swapper/311:26:273
2649091101,2phc2sys0-21swapper/311:26:273
2649091101,2phc2sys0-21swapper/309:06:483
2649091101,2phc2sys0-21swapper/307:11:423
2649091100,3phc2sys0-21swapper/312:23:063
2649091100,2phc2sys0-21swapper/311:41:383
2649091100,2phc2sys0-21swapper/311:36:213
2649091100,2phc2sys0-21swapper/309:45:073
2649091100,2phc2sys0-21swapper/308:36:543
2649091100,2phc2sys0-21swapper/308:06:453
2649091100,2phc2sys0-21swapper/308:01:363
2649091100,2phc2sys0-21swapper/307:41:073
2649091100,2phc2sys0-21swapper/307:31:463
264909191,2phc2sys0-21swapper/311:00:103
264909191,2phc2sys0-21swapper/308:26:493
264909190,2phc2sys0-21swapper/311:50:443
264909190,2phc2sys0-21swapper/310:15:053
264909190,2phc2sys0-21swapper/308:55:263
264909190,2phc2sys0-21swapper/308:46:523
264909190,2phc2sys0-21swapper/307:55:383
264909190,2phc2sys0-21swapper/307:36:393
264909190,2phc2sys0-21swapper/307:30:013
264909190,2phc2sys0-21swapper/307:06:413
264909190,2phc2sys0-21swapper/307:06:413
264909190,1phc2sys0-21swapper/307:51:003
264909190,1phc2sys0-21swapper/307:20:283
264909181,3phc2sys0-21swapper/309:01:363
264909180,2phc2sys0-21swapper/308:16:393
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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