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2026-08-29 - 17:52
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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 Sat Aug 29, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
13785121610,2sleep30-21swapper/312:19:483
410323921140,2sleep00-21swapper/010:09:520
14537221000,2sleep30-21swapper/312:22:163
275562910,2sleep30-21swapper/311:14:573
40773732600,2sleep20-21swapper/209:54:552
3839199992715,7cyclictest86037-21kthreadcore11:49:530
383920199266,5cyclictest0-21swapper/111:44:311
3839199992410,5cyclictest0-21swapper/012:40:010
997762230,2sleep20-21swapper/211:55:012
3839201992317,2cyclictest82050irq/121-eno110:49:491
383919999235,6cyclictest0-21swapper/009:29:310
3839199992313,6cyclictest1011-21gdbus10:50:020
383919999229,5cyclictest134352-21missed_timers12:14:570
383919999227,6cyclictest0-21swapper/012:09:300
383919999227,2cyclictest0-21swapper/009:59:310
383919999226,6cyclictest0-21swapper/011:19:310
3839203992117,2cyclictest0-21swapper/209:15:012
383920199219,7cyclictest141647-21kthreadcore12:19:541
383920199212,12cyclictest42799-21cut11:24:531
3839201992110,7cyclictest4089628-21munin-run10:00:011
3839199992112,8cyclictest4007924-21ssh09:14:560
3839199992112,2cyclictest4134099-21ssh10:25:020
3839199992110,4cyclictest4096460-21kthreadcore10:04:560
39676792200,0sleep03967683-21tail08:49:430
383920399201,7cyclictest0-21swapper/210:39:312
383920199205,8cyclictest0-21swapper/109:54:321
3839201992017,2cyclictest24610-21gmain09:29:171
383919999208,5cyclictest0-21swapper/009:19:500
383919999208,4cyclictest1790-21ssh11:00:000
383919999207,2cyclictest0-21swapper/011:29:560
383919999201,6cyclictest0-21swapper/010:41:530
3839199992010,4cyclictest93871-21cstates11:54:480
3839203991916,1cyclictest0-21swapper/210:54:502
3839203991916,1cyclictest0-21swapper/210:14:512
383920199199,3cyclictest4069080-21kthreadcore09:49:551
383920199196,5cyclictest151890-21cut12:24:581
3839201991915,3cyclictest4130678-21kthreadcore10:24:551
3839201991915,3cyclictest24617-21JS14:54:061
3839201991915,3cyclictest131835-21kthreadcore12:14:551
383919999197,4cyclictest0-21swapper/012:25:040
3839199991915,3cyclictest24615-21JS14:54:060
3839199991914,4cyclictest18299-21cut11:09:560
3839199991910,1cyclictest491rcuog/209:46:590
2213291190,2phc2sys0-21swapper/310:51:303
383920399182,7cyclictest0-21swapper/212:19:302
383920399181,3cyclictest163752sleep211:09:562
383920399180,1cyclictest0-21swapper/210:20:012
383920199187,8cyclictest3911737-21cat08:05:021
383920199187,3cyclictest1188-21runrttasks12:00:081
383920199185,8cyclictest3849484-21cat07:20:021
383920199185,5cyclictest4153686-21sh10:38:161
383920199184,7cyclictest4169850-21kworker/u16:3+xprtiod11:15:261
383920199183,3cyclictest16677-21kthreadcore11:09:561
3839201991815,2cyclictest3973669-21latency_hist08:50:011
3839201991814,3cyclictest932-1atopacctd09:14:551
3839201991814,3cyclictest3924339-21kthreadcore08:14:541
3839201991814,3cyclictest167353-21kthreadcore12:34:561
3839201991811,4cyclictest3959716-21sendmail08:40:011
3839201991811,3cyclictest4167012-21kthreadcore10:44:561
383919999187,6cyclictest0-21swapper/012:03:260
383919999187,6cyclictest0-21swapper/009:39:400
383919999186,7cyclictest0-21swapper/012:32:370
383919999186,3cyclictest3911603-21munin-run08:05:010
383919999184,4cyclictest3953299-21munin-run08:35:030
383919999182,7cyclictest0-21swapper/011:39:410
383919999181,9cyclictest4109858-21/usr/sbin/munin10:15:020
3839199991815,2cyclictest171ktimers/011:02:390
383919999181,2cyclictest0-21swapper/009:44:350
383919999180,8cyclictest3946387-21/usr/sbin/munin08:30:030
383919999180,8cyclictest138771-21irqrtprio12:19:520
2213291182,7phc2sys0-21swapper/312:14:313
3839203991714,1cyclictest0-21swapper/212:29:562
383920399170,1cyclictest0-21swapper/211:02:452
383920399170,1cyclictest0-21swapper/210:24:312
383920199178,5cyclictest4098388-21ssh10:05:021
383920199177,3cyclictest4185552-21kthreadcore10:54:551
383920199176,6cyclictest4001619-21kworker/u16:2+xprtiod10:59:541
383920199176,3cyclictest4151758-21munin-plugin-st10:35:021
383920199175,7cyclictest55738-21cat11:30:021
383920199175,6cyclictest125813-21sshd-auth12:09:581
383920199173,5cyclictest4120973-21kthreadcore10:19:551
3839201991714,2cyclictest3866995-21kthreadcore07:34:551
3839201991714,2cyclictest3866995-21kthreadcore07:34:551
3839201991714,2cyclictest179130-21ssh12:40:011
3839201991713,3cyclictest96547-21kthreadcore11:54:551
3839201991713,3cyclictest87318-21kthreadcore11:49:531
3839201991713,3cyclictest778-21dbus-daemon09:05:011
3839201991713,3cyclictest3999963-21kthreadcore09:09:541
3839201991713,3cyclictest3914044-21kthreadcore08:09:531
3839201991713,3cyclictest26439-21kthreadcore11:14:571
3839201991712,1cyclictest2447398rtkit-daemon09:19:511
383920199171,11cyclictest0-21swapper/109:23:551
383919999177,9cyclictest4039130-21/usr/sbin/munin09:34:550
383919999177,6cyclictest0-21swapper/010:30:000
383919999175,2cyclictest0-21swapper/009:50:260
383919999174,6cyclictest0-21swapper/008:22:260
383919999173,6cyclictest0-21swapper/011:14:380
383919999173,2cyclictest0-21swapper/011:43:360
383919999172,3cyclictest0-21swapper/010:18:300
383919999171,7cyclictest4145431-21/usr/sbin/munin10:34:550
3839199991714,2cyclictest4001396-21diskmemload10:54:530
2213291170,2phc2sys0-21swapper/312:04:383
2213291170,2phc2sys0-21swapper/311:06:293
2213291170,2phc2sys0-21swapper/310:56:433
2213291170,2phc2sys0-21swapper/310:02:313
3839203991613,1cyclictest0-21swapper/211:30:032
3839203991613,1cyclictest0-21swapper/211:14:562
3839203991613,1cyclictest0-21swapper/208:14:492
3839203991613,1cyclictest0-21swapper/208:05:012
383920199169,2cyclictest2447398rtkit-daemon09:31:021
383920199162,7cyclictest0-21swapper/107:28:261
383920199162,3cyclictest0-21swapper/109:39:291
383920199161,3cyclictest4001396-21diskmemload11:04:521
3839201991612,3cyclictest61648-21kthreadcore11:34:551
3839201991612,3cyclictest4140581-21kthreadcore10:29:541
3839201991612,3cyclictest4058052-21irqcore09:44:521
3839201991612,3cyclictest3977636-21kthreadcore08:54:541
3839201991612,3cyclictest3962720-21kthreadcore08:44:541
3839201991612,3cyclictest3962720-21kthreadcore08:44:541
3839201991612,3cyclictest3947830-21irqcore08:34:531
3839201991612,3cyclictest3939953-21aten_repower_cu08:29:321
3839201991612,3cyclictest3930766-21kthreadcore08:19:551
3839201991612,3cyclictest3900539-21kthreadcore07:59:541
3839201991612,3cyclictest3890133-21latency07:49:551
3839201991612,3cyclictest3879714-21kthreadcore07:44:531
3839201991612,3cyclictest3851865-21kthreadcore07:24:541
3839201991611,4cyclictest3871510-21fschecks_time07:39:511
3839201991610,2cyclictest82050irq/121-eno111:59:301
383920199160,5cyclictest4111262-21sed10:14:531
383919999169,1cyclictest145331-21ssh12:22:110
383919999165,4cyclictest0-21swapper/010:37:150
383919999165,10cyclictest0-21swapper/011:34:490
383919999163,5cyclictest0-21swapper/011:20:250
383919999161,7cyclictest3974392-21/usr/sbin/munin08:54:570
383919999161,7cyclictest3921977-21cut08:14:530
383919999161,7cyclictest3850133-21/usr/sbin/munin07:24:570
383919999161,6cyclictest3839780-21/usr/sbin/munin07:14:560
383919999161,6cyclictest0-21swapper/009:21:550
383919999161,2cyclictest3913609-21irqstats08:09:530
383919999161,2cyclictest3904795-21munin-run08:00:010
383919999161,2cyclictest0-21swapper/009:04:350
383919999160,4cyclictest3877764-21/usr/sbin/munin07:44:470
383919999160,3cyclictest0-21swapper/008:42:580
383919999160,3cyclictest0-21swapper/008:42:580
2213291160,4phc2sys0-21swapper/307:09:313
2213291160,3phc2sys0-21swapper/309:21:423
2213291160,2phc2sys0-21swapper/308:25:073
2213291160,2phc2sys0-21swapper/307:34:323
2213291160,2phc2sys0-21swapper/307:34:323
2213291160,1phc2sys0-21swapper/311:26:293
2213291160,1phc2sys0-21swapper/308:05:393
383920399159,3cyclictest0-21swapper/207:43:092
383920399151,9cyclictest0-21swapper/211:24:312
383920399151,9cyclictest0-21swapper/210:49:322
3839203991512,1cyclictest0-21swapper/212:24:552
3839203991512,1cyclictest0-21swapper/212:01:462
3839203991512,1cyclictest0-21swapper/210:09:542
3839203991512,1cyclictest0-21swapper/209:50:012
3839203991512,1cyclictest0-21swapper/209:44:312
3839203991512,1cyclictest0-21swapper/209:34:492
3839203991512,1cyclictest0-21swapper/209:19:522
3839203991512,1cyclictest0-21swapper/209:00:012
3839203991512,1cyclictest0-21swapper/208:24:512
3839203991512,1cyclictest0-21swapper/208:09:592
3839203991512,1cyclictest0-21swapper/208:00:012
3839203991511,2cyclictest0-21swapper/209:24:522
3839203991510,2cyclictest0-21swapper/211:36:102
383920399150,8cyclictest0-21swapper/211:19:312
383920399150,7cyclictest0-21swapper/207:14:322
383920199159,2cyclictest82050irq/121-eno112:29:521
383920199151,9cyclictest64817-21ssh11:35:071
383920199151,4cyclictest4099479-21sh10:06:171
3839201991511,3cyclictest3981378-21aten_repower_en08:59:361
3839201991511,3cyclictest0-21swapper/108:22:591
383919999154,4cyclictest3885106-21cat07:49:480
383919999153,4cyclictest3995323-21sshd-session09:09:420
383919999151,6cyclictest3863303-21appstreamcli07:30:050
383919999151,6cyclictest3863303-21appstreamcli07:30:050
383919999151,5cyclictest0-21swapper/011:58:110
383919999151,3cyclictest3959742-21munin-run08:40:010
3839199991511,3cyclictest3874752-21kthreadcore07:39:550
3839199991511,3cyclictest3858298-21irqrtprio07:29:520
383919999150,7cyclictest3981471-21aten2.4-expect08:59:420
383919999150,7cyclictest3926106-21/usr/sbin/munin08:19:500
2213291150,4phc2sys0-21swapper/311:31:423
2213291150,3phc2sys0-21swapper/311:49:303
2213291150,2phc2sys0-21swapper/312:25:303
2213291150,2phc2sys0-21swapper/310:43:393
2213291150,2phc2sys0-21swapper/310:24:483
2213291150,2phc2sys0-21swapper/309:32:363
38993522141,5sleep30-21swapper/307:59:533
383920399146,4cyclictest0-21swapper/207:54:312
383920399141,9cyclictest0-21swapper/210:59:322
383920399141,8cyclictest567902sleep211:31:532
3839203991412,1cyclictest0-21swapper/211:55:252
3839203991412,1cyclictest0-21swapper/207:20:022
3839203991411,1cyclictest0-21swapper/212:39:552
3839203991411,1cyclictest0-21swapper/212:34:542
3839203991411,1cyclictest0-21swapper/212:14:482
3839203991411,1cyclictest0-21swapper/212:09:532
3839203991411,1cyclictest0-21swapper/210:29:502
3839203991411,1cyclictest0-21swapper/209:37:472
3839203991411,1cyclictest0-21swapper/209:29:532
3839203991411,1cyclictest0-21swapper/208:54:542
3839203991411,1cyclictest0-21swapper/208:50:002
3839203991411,1cyclictest0-21swapper/208:44:532
3839203991411,1cyclictest0-21swapper/208:44:532
3839203991411,1cyclictest0-21swapper/208:40:022
3839203991411,1cyclictest0-21swapper/208:34:502
3839203991411,1cyclictest0-21swapper/208:19:552
3839203991411,1cyclictest0-21swapper/207:49:532
3839203991411,1cyclictest0-21swapper/207:39:532
3839203991410,2cyclictest0-21swapper/210:04:552
3839203991410,2cyclictest0-21swapper/209:04:552
3839203991410,2cyclictest0-21swapper/208:29:502
3839203991410,2cyclictest0-21swapper/207:34:532
3839203991410,2cyclictest0-21swapper/207:34:532
383920399140,6cyclictest0-21swapper/210:41:002
3839201991411,2cyclictest3840528-21timerandwakeup07:15:031
3839201991411,2cyclictest3839217-21systemd07:10:011
383919999140,7cyclictest3843213-21/usr/sbin/munin07:19:320
2213291141,4phc2sys0-21swapper/311:54:313
2213291140,6phc2sys0-21swapper/309:43:043
2213291140,3phc2sys0-21swapper/312:36:593
2213291140,2phc2sys0-21swapper/309:10:453
2213291140,2phc2sys0-21swapper/308:37:563
383920399131,7cyclictest0-21swapper/211:44:312
3839203991311,1cyclictest0-21swapper/207:29:542
3839203991311,1cyclictest0-21swapper/207:10:032
3839203991310,1cyclictest0-21swapper/211:49:542
3839203991310,1cyclictest0-21swapper/209:09:412
383920399130,7cyclictest40813492sleep209:55:162
2213291131,6phc2sys0-21swapper/308:54:313
2213291131,5phc2sys0-21swapper/312:09:303
2213291130,5phc2sys0-21swapper/310:14:323
2213291130,3phc2sys0-21swapper/311:16:573
2213291130,3phc2sys0-21swapper/310:34:343
2213291130,2phc2sys0-21swapper/310:10:003
2213291130,2phc2sys0-21swapper/309:58:463
2213291130,2phc2sys0-21swapper/309:50:323
2213291130,1phc2sys0-21swapper/307:17:013
383920399129,1cyclictest0-21swapper/210:33:272
3839203991210,1cyclictest0-21swapper/207:24:532
2213291122,2phc2sys0-21swapper/311:57:243
2213291120,4phc2sys0-21swapper/307:14:313
2213291120,3phc2sys0-21swapper/308:34:333
2213291120,2phc2sys0-21swapper/311:39:043
2213291120,1phc2sys0-21swapper/311:21:443
2213291120,1phc2sys0-21swapper/308:40:143
2213291120,1phc2sys0-21swapper/308:40:143
2213291120,1phc2sys0-21swapper/307:27:193
383919999118,2cyclictest813-21systemd-logind07:10:020
2213291117,2phc2sys0-21swapper/307:54:553
2213291115,2phc2sys0-21swapper/309:16:443
2213291111,3phc2sys0-21swapper/309:36:093
2213291111,2phc2sys0-21swapper/311:45:013
2213291111,2phc2sys0-21swapper/311:05:013
2213291111,2phc2sys0-21swapper/310:38:113
2213291111,2phc2sys0-21swapper/310:26:043
2213291111,2phc2sys0-21swapper/310:18:103
2213291111,2phc2sys0-21swapper/309:45:593
2213291110,2phc2sys0-21swapper/312:34:323
2213291110,1phc2sys0-21swapper/308:13:343
2213291110,1phc2sys0-21swapper/307:41:213
2213291101,2phc2sys0-21swapper/308:24:563
2213291101,1phc2sys0-21swapper/309:05:023
2213291100,4phc2sys0-21swapper/308:59:323
2213291100,2phc2sys0-21swapper/309:26:553
2213291100,2phc2sys0-21swapper/309:09:313
2213291100,1phc2sys0-21swapper/307:24:223
221329191,2phc2sys0-21swapper/310:45:253
221329191,2phc2sys0-21swapper/308:49:523
221329191,2phc2sys0-21swapper/307:46:273
221329191,2phc2sys0-21swapper/307:36:163
221329190,2phc2sys0-21swapper/308:15:573
221329190,2phc2sys0-21swapper/308:05:033
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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