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2026-08-26 - 00:01
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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 highest latencies:
System rackeslot2.osadl.org (updated Tue Aug 25, 2026 12:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
396618321110,2sleep13622453-21cyclictest10:50:031
396618321110,2sleep13622453-21cyclictest10:50:031
382038221070,2sleep30-21swapper/309:29:553
36394252960,1sleep10-21swapper/107:20:031
36575972950,2sleep30-21swapper/307:35:003
38659232800,1sleep10-21swapper/109:54:591
40854502400,2sleep14085440-21ssh11:59:501
39003452330,1sleep20-21swapper/210:14:562
37024442320,1sleep20-21swapper/208:09:542
41242212290,2sleep04124029-21ssh12:20:020
3622470992511,3cyclictest3823938-21kthreadcore09:30:031
37539072240,1sleep1341rcuc/108:45:001
3622462992418,2cyclictest82050irq/121-eno109:35:020
3622462992415,5cyclictest3839072-21kthreadcore09:40:010
3622470992313,3cyclictest3890591-21/usr/sbin/munin10:10:001
3622462992313,6cyclictest4037990-21phc2sys11:30:020
3622462992312,7cyclictest4070537-21cut11:50:010
41118842220,2sleep20-21swapper/212:14:502
3622470992212,3cyclictest4146704-21runrttasks12:34:011
3622470992212,3cyclictest3826389-21/usr/sbin/munin09:30:071
3622462992212,6cyclictest4090461-21kthreadcore12:00:030
3622462992210,8cyclictest4040958-21cut11:34:400
362247099219,3cyclictest4106568-21kthreadcore12:10:001
362247099211,10cyclictest4050536-21cut11:39:571
3622462992114,6cyclictest3805994-21kthreadcore09:20:000
3622462992112,5cyclictest3904867-21systemd-run10:15:010
3622462992111,6cyclictest4115370-21tr12:15:000
2447398210,7rtkit-daemon1206-21snmpd08:47:361
40105082200,1sleep20-21swapper/211:15:012
362247999201,7cyclictest0-21swapper/209:49:372
3622479992016,2cyclictest0-21swapper/212:29:092
3622479992016,2cyclictest0-21swapper/210:44:412
3622479992016,2cyclictest0-21swapper/210:44:412
362247099203,8cyclictest3659548-21awk07:35:011
3622470992011,4cyclictest3799648-21/usr/sbin/munin09:15:041
362246299209,7cyclictest4013551-21sh11:17:540
362246299209,7cyclictest3877875-21kthreadcore10:00:030
362246299209,6cyclictest4054329-21munin-run11:40:020
362246299209,4cyclictest0-21swapper/010:28:590
362246299207,8cyclictest4161607-21munin-run12:40:020
362246299206,2cyclictest82050irq/121-eno109:50:010
3622462992015,1cyclictest2447398rtkit-daemon09:25:390
3622462992014,5cyclictest4049712-21/usr/sbin/munin11:40:060
3622462992011,5cyclictest4094005-21apt-get12:04:380
3622462992011,5cyclictest3866964-21ssh09:55:000
3622462992010,6cyclictest4126873-21switchtime12:20:080
2213291201,9phc2sys0-21swapper/311:04:363
2213291200,9phc2sys0-21swapper/309:14:373
2213291200,2phc2sys0-21swapper/311:59:263
3622479991915,2cyclictest0-21swapper/212:19:382
362247099198,6cyclictest0-21swapper/107:55:001
3622470991911,4cyclictest3721739-21kworker/u16:0-events_unbound12:17:111
362246299199,7cyclictest3815012-21grep09:25:010
362246299199,7cyclictest3793377-21apt-get09:14:360
362246299199,6cyclictest4103537-21diskstats12:09:550
362246299199,6cyclictest1-21systemd09:05:030
362246299199,6cyclictest0-21swapper/010:10:020
362246299198,8cyclictest4024019-21tune2fs11:24:560
362246299198,8cyclictest3999856-21kthreadcore11:10:000
362246299192,1cyclictest0-21swapper/010:24:520
3622462991911,6cyclictest3976619-21ssh10:55:070
3622462991911,4cyclictest0-21swapper/010:20:000
3622462991910,5cyclictest4078094-21ssh11:54:580
3622462991910,5cyclictest4010981-21kthreadcore11:15:020
3622462991910,5cyclictest0-21swapper/009:45:000
3622462991910,4cyclictest0-21swapper/010:40:000
362246299190,18cyclictest3663480-21/usr/sbin/munin07:40:010
362246299190,18cyclictest3663480-21/usr/sbin/munin07:40:010
2213291190,2phc2sys0-21swapper/312:19:503
2213291190,1phc2sys0-21swapper/311:49:283
362247999183,11cyclictest40674092sleep211:49:382
3622479991816,1cyclictest0-21swapper/209:05:032
362247099189,2cyclictest82050irq/121-eno111:12:221
3622470991815,2cyclictest24616-21JS14:54:061
3622470991815,2cyclictest24610-21gmain11:15:211
3622470991814,3cyclictest3994044-21pmu-power11:05:031
362246299189,5cyclictest3987934-21/usr/sbin/munin11:05:010
362246299189,5cyclictest3936094-21ssh10:34:570
362246299189,5cyclictest3936094-21ssh10:34:570
362246299189,5cyclictest3688408-21/usr/sbin/munin08:00:010
362246299189,5cyclictest0-21swapper/010:54:010
362246299188,7cyclictest3647559-21tr07:29:530
362246299188,6cyclictest3719446-21tr08:19:590
362246299188,6cyclictest1-21systemd08:10:020
362246299187,7cyclictest4138433-21cpu12:29:550
362246299187,6cyclictest3730836-21munin-run08:30:010
362246299183,12cyclictest3790350-21sh09:10:020
3622462991816,1cyclictest3646183-21/usr/sbin/munin07:25:030
3622462991815,2cyclictest3950338-21unixbench-2d10:40:080
3622462991815,2cyclictest3950338-21unixbench-2d10:40:080
3622462991815,2cyclictest3773868-21sed09:00:010
3622462991815,2cyclictest1206-21snmpd08:25:020
3622462991814,3cyclictest3622453-21cyclictest08:49:590
3622462991814,2cyclictest3756305-21latency_hist08:45:040
3622462991813,4cyclictest3658980-21kthreadcore07:35:010
3622462991812,5cyclictest4138097-21/usr/sbin/munin12:30:090
3622462991811,4cyclictest0-21swapper/010:50:010
3622462991811,4cyclictest0-21swapper/010:50:010
2213291180,5phc2sys0-21swapper/310:49:383
2213291180,5phc2sys0-21swapper/310:49:383
2213291180,3phc2sys0-21swapper/311:35:013
2213291180,2phc2sys0-21swapper/310:28:333
2213291180,2phc2sys0-21swapper/309:34:263
3622479991715,1cyclictest0-21swapper/211:35:022
3622479991714,1cyclictest0-21swapper/212:00:022
3622479991714,1cyclictest0-21swapper/211:40:232
3622479991714,1cyclictest0-21swapper/211:25:142
3622479991714,1cyclictest0-21swapper/210:29:572
3622479991712,2cyclictest0-21swapper/212:04:392
362247099174,5cyclictest3852089-21cat09:45:021
362247099171,7cyclictest4140457-21latency_hist12:30:021
3622470991714,2cyclictest3808231-21proc_pri09:20:041
3622470991714,2cyclictest24610-21gmain11:41:371
362247099171,15cyclictest4094005-21apt-get12:04:381
362246299177,6cyclictest3884269-21cut10:05:000
3622462991714,2cyclictest3738065-21kthreadcore08:34:580
3622462991714,2cyclictest3639007-21latency_hist07:20:020
2447398170,3rtkit-daemon24610-21gmain08:21:451
2213291171,4phc2sys0-21swapper/309:09:373
2213291170,7phc2sys0-21swapper/307:44:383
2213291170,2phc2sys0-21swapper/310:35:273
2213291170,2phc2sys0-21swapper/309:24:323
2213291170,1phc2sys0-21swapper/310:06:453
362247999162,6cyclictest0-21swapper/209:39:382
362247999161,5cyclictest0-21swapper/212:24:372
3622479991614,1cyclictest0-21swapper/209:20:042
3622479991614,1cyclictest0-21swapper/207:50:002
3622479991613,1cyclictest0-21swapper/210:25:022
3622479991613,1cyclictest0-21swapper/210:00:012
3622479991613,1cyclictest0-21swapper/208:55:002
3622479991613,1cyclictest0-21swapper/207:20:012
3622479991612,2cyclictest0-21swapper/208:21:112
3622479991611,2cyclictest0-21swapper/208:42:092
362247099162,5cyclictest3858159-21cut09:50:001
3622470991613,2cyclictest778-21dbus-daemon09:10:021
3622470991613,2cyclictest778-21dbus-daemon07:45:021
3622470991613,2cyclictest3947751-21ssh10:40:021
3622470991613,2cyclictest3940693-21munin-plugin-st10:35:021
3622470991613,2cyclictest3940693-21munin-plugin-st10:35:021
3622470991613,2cyclictest3778441-21cut09:04:571
3622470991613,2cyclictest3629801-21turbostat.cron07:15:011
3622470991612,3cyclictest4132983-21kthreadcore12:25:001
3622470991612,3cyclictest4038726-21unixbench_singl11:30:061
3622470991612,3cyclictest3976513-21mailstats10:55:051
3622470991612,3cyclictest3971091-21gltestperf10:54:561
3622470991612,3cyclictest3766176-21kthreadcore08:54:591
3622470991612,3cyclictest3717694-21kthreadcore08:19:581
3622470991612,3cyclictest3622453-21cyclictest08:34:581
3622470991611,4cyclictest4070323-21grep11:50:011
362247099160,8cyclictest4029095-21latency_hist11:25:031
362246299168,5cyclictest3736589-21kworker/0:0+mm_percpu_wq08:40:000
362246299166,8cyclictest376-21systemd-journal07:44:240
362246299166,6cyclictest3681628-21/usr/sbin/munin07:55:020
3622462991613,2cyclictest932-1atopacctd07:50:000
3622462991613,2cyclictest3712398-21kthreadcore08:15:000
3622462991612,3cyclictest3764973-21irqcore08:54:580
3622462991612,3cyclictest3698666-21kthreadcore08:05:000
3622462991612,3cyclictest3626003-21irqcore07:14:580
2213291160,2phc2sys0-21swapper/311:51:083
362247999155,4cyclictest0-21swapper/211:04:372
362247999151,7cyclictest0-21swapper/208:49:372
362247999151,5cyclictest0-21swapper/211:39:382
3622479991512,1cyclictest0-21swapper/209:35:002
3622479991512,1cyclictest0-21swapper/207:14:592
362247099158,2cyclictest82050irq/121-eno109:58:411
362247099157,2cyclictest82050irq/121-eno111:05:131
362247099155,3cyclictest82050irq/121-eno110:18:241
362247099155,2cyclictest82050irq/121-eno110:24:261
362247099151,7cyclictest0-21swapper/111:51:261
362247099151,6cyclictest4160363-21latency_hist12:40:021
3622470991512,2cyclictest975-21in:imuxsock10:11:241
3622470991512,2cyclictest778-21dbus-daemon12:15:021
3622470991512,2cyclictest3709940-21irqcore08:14:581
3622470991512,2cyclictest3707274-21grep08:10:021
3622470991512,2cyclictest3650264-21kthreadcore07:29:591
3622470991512,2cyclictest3622453-21cyclictest09:00:001
3622470991512,2cyclictest24616-21JS14:54:061
3622470991512,2cyclictest24616-21JS14:54:061
3622470991511,3cyclictest4036766-21kthreadcore11:30:001
3622470991511,3cyclictest3953046-21cpuspeed_turbos10:44:531
3622470991511,3cyclictest3953046-21cpuspeed_turbos10:44:531
3622470991511,3cyclictest3922950-21kthreadcore10:25:041
3622470991511,3cyclictest3840223-21kthreadcore09:40:001
3622470991511,3cyclictest3687731-21switchtime07:55:061
3622470991511,3cyclictest3675537-21gltestperf07:49:561
3622470991510,3cyclictest3646268-21latency_hist07:25:031
3622462991512,2cyclictest3623893-21missed_timers07:10:030
2213291151,2phc2sys0-21swapper/309:54:263
2213291150,6phc2sys0-21swapper/312:39:373
2213291150,3phc2sys0-21swapper/310:19:353
2213291150,2phc2sys0-21swapper/312:14:083
2213291150,2phc2sys0-21swapper/312:07:153
362247999141,6cyclictest0-21swapper/212:09:372
362247999141,5cyclictest0-21swapper/207:44:382
362247999141,5cyclictest0-21swapper/207:24:372
3622479991412,1cyclictest0-21swapper/211:20:042
3622479991412,1cyclictest0-21swapper/210:10:022
3622479991412,1cyclictest0-21swapper/209:30:012
3622479991412,1cyclictest0-21swapper/208:59:592
3622479991412,1cyclictest0-21swapper/207:35:032
3622479991411,1cyclictest0-21swapper/211:50:072
3622479991411,1cyclictest0-21swapper/211:19:552
3622479991411,1cyclictest0-21swapper/210:40:012
3622479991411,1cyclictest0-21swapper/210:19:582
3622479991411,1cyclictest0-21swapper/210:04:552
3622479991411,1cyclictest0-21swapper/209:17:562
3622479991411,1cyclictest0-21swapper/209:14:582
3622479991411,1cyclictest0-21swapper/208:39:552
3622479991411,1cyclictest0-21swapper/208:19:572
3622479991411,1cyclictest0-21swapper/208:10:072
3622479991411,1cyclictest0-21swapper/208:04:592
3622479991411,1cyclictest0-21swapper/207:59:562
3622479991411,1cyclictest0-21swapper/207:54:412
362247099146,2cyclictest82050irq/121-eno110:01:031
362247099145,2cyclictest82050irq/121-eno108:29:391
362247099145,2cyclictest17850irq/132-ahci[0000:00:17.0]08:39:561
3622470991410,3cyclictest3791066-21timerwakeupswit09:10:071
2213291141,3phc2sys0-21swapper/308:09:363
2213291140,3phc2sys0-21swapper/311:38:333
2213291140,2phc2sys0-21swapper/311:43:193
2213291140,2phc2sys0-21swapper/311:20:473
41458642130,2sleep30-21swapper/312:32:163
39839372130,2sleep30-21swapper/311:00:033
362247999139,2cyclictest0-21swapper/210:58:072
362247999139,2cyclictest0-21swapper/210:46:532
362247999139,2cyclictest0-21swapper/210:46:532
362247999139,1cyclictest0-21swapper/207:26:092
362247999135,6cyclictest3999791-21taskset11:10:002
362247999132,8cyclictest41558422sleep212:39:372
362247999131,6cyclictest0-21swapper/212:34:372
3622479991311,1cyclictest0-21swapper/210:53:592
3622479991311,1cyclictest0-21swapper/209:54:552
3622479991311,1cyclictest0-21swapper/209:42:072
3622479991311,1cyclictest0-21swapper/209:09:582
3622479991311,1cyclictest0-21swapper/207:39:592
3622479991311,1cyclictest0-21swapper/207:39:592
3622479991310,1cyclictest0-21swapper/208:34:582
362247999130,11cyclictest0-21swapper/210:33:532
362247999130,11cyclictest0-21swapper/210:33:532
36181472131,4sleep13618180-21apt-get07:09:381
2213291131,2phc2sys0-21swapper/310:42:043
2213291131,2phc2sys0-21swapper/310:42:043
2213291130,6phc2sys0-21swapper/309:39:383
2213291130,4phc2sys0-21swapper/309:49:023
2213291130,3phc2sys0-21swapper/312:28:053
2213291130,2phc2sys0-21swapper/309:19:563
3622479991210,1cyclictest0-21swapper/208:29:582
2213291121,3phc2sys0-21swapper/308:49:373
2213291120,2phc2sys0-21swapper/310:50:223
362247999119,1cyclictest0-21swapper/207:10:022
2213291111,3phc2sys0-21swapper/308:34:373
2213291110,6phc2sys0-21swapper/312:24:373
2213291110,2phc2sys0-21swapper/310:24:203
2213291110,2phc2sys0-21swapper/310:14:343
2213291110,2phc2sys0-21swapper/309:43:193
2213291110,2phc2sys0-21swapper/307:59:343
2213291110,2phc2sys0-21swapper/307:49:363
2213291110,2phc2sys0-21swapper/307:14:563
2213291110,1phc2sys0-21swapper/308:42:153
2213291110,1phc2sys0-21swapper/308:38:073
2213291110,1phc2sys0-21swapper/307:50:193
40931532100,4sleep30-21swapper/312:02:543
2213291102,2phc2sys0-21swapper/308:59:553
2213291101,2phc2sys0-21swapper/311:06:503
2213291101,2phc2sys0-21swapper/310:31:503
2213291101,2phc2sys0-21swapper/310:31:503
2213291101,2phc2sys0-21swapper/309:56:553
2213291101,2phc2sys0-21swapper/308:24:473
2213291101,2phc2sys0-21swapper/307:29:563
2213291100,4phc2sys0-21swapper/307:19:373
2213291100,2phc2sys0-21swapper/311:13:373
2213291100,2phc2sys0-21swapper/307:39:383
2213291100,2phc2sys0-21swapper/307:39:383
2213291100,1phc2sys0-21swapper/311:16:473
2213291100,1phc2sys0-21swapper/308:52:413
2213291100,1phc2sys0-21swapper/307:07:083
221329192,2phc2sys0-21swapper/308:15:003
221329190,4phc2sys0-21swapper/308:04:373
221329190,3phc2sys0-21swapper/308:29:403
221329190,2phc2sys0-21swapper/311:25:073
221329190,2phc2sys0-21swapper/310:00:073
221329190,2phc2sys0-21swapper/309:04:563
221329190,2phc2sys0-21swapper/308:20:023
221329190,2phc2sys0-21swapper/307:24:553
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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