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2026-03-24 - 21:42
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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 Mar 24, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
41783822970,1sleep10-21swapper/111:56:281
40870932760,1sleep00-21swapper/011:06:090
458542350,2sleep30-21swapper/312:31:333
3737953992118,2cyclictest1288-1atopacctd10:55:000
3737953992112,5cyclictest3942301-21kthreadcore09:41:280
3737953992112,5cyclictest3897358-21kthreadcore09:16:270
3737953992112,5cyclictest3897358-21kthreadcore09:16:270
3737953992110,7cyclictest3789565-21sh07:51:220
3737954992013,1cyclictest601rcuop/307:40:001
373795399209,6cyclictest0-21swapper/009:56:290
3737953992010,4cyclictest3927298-21timerandwakeup09:31:320
373795399200,16cyclictest0-21swapper/008:36:320
3737955991916,1cyclictest0-21swapper/212:20:002
3737955991911,4cyclictest0-21swapper/209:26:292
3737954991916,2cyclictest3964341-21perf09:55:011
3737954991915,3cyclictest3955682-21dump-pmu-power09:50:001
3737954991912,2cyclictest134050irq/121-eno110:06:261
3737954991911,4cyclictest1426-21gdbus10:50:001
3737954991911,3cyclictest52749-21kthreadcore12:36:271
373795399198,6cyclictest0-21swapper/010:15:010
3737953991911,6cyclictest0-21swapper/012:05:020
373795399190,3cyclictest3784910-21cat07:46:260
2649091191,2phc2sys0-21swapper/311:53:193
3737955991816,1cyclictest0-21swapper/209:40:022
3737955991815,2cyclictest0-21swapper/210:20:012
3737955991815,1cyclictest0-21swapper/210:30:012
3737955991815,1cyclictest0-21swapper/208:55:022
3737955991815,1cyclictest0-21swapper/208:13:302
3737955991815,1cyclictest0-21swapper/208:00:012
3737954991815,2cyclictest3744648-21kthreadcore07:15:011
3737954991815,2cyclictest1296-21polkitd11:30:001
3737954991815,2cyclictest1290-21dbus-daemon11:40:001
3737954991815,2cyclictest1-21systemd10:05:011
3737954991814,3cyclictest4165155-21aten_repower_fr11:51:191
3737954991810,3cyclictest0-21swapper/111:20:021
373795399187,6cyclictest0-21swapper/009:51:200
3737953991815,2cyclictest4025325-21apt-key10:30:010
3737953991811,6cyclictest0-21swapper/011:50:020
2649091181,3phc2sys0-21swapper/312:11:453
2649091181,2phc2sys0-21swapper/310:16:263
2649091180,2phc2sys0-21swapper/311:24:133
3737955991715,1cyclictest0-21swapper/211:41:312
3737955991714,1cyclictest0-21swapper/209:46:242
3737955991714,1cyclictest0-21swapper/209:25:012
373795499179,3cyclictest0-21swapper/110:45:011
373795499178,4cyclictest0-21swapper/110:31:301
373795499172,7cyclictest17293-21kthreadcore12:16:271
3737954991714,2cyclictest3889885-21sed09:11:281
3737954991714,2cyclictest0-21swapper/109:30:021
3737954991713,3cyclictest35349-21kthreadcore12:26:291
3737954991710,3cyclictest4157148-21gltestperf11:46:231
373795399178,5cyclictest3915671-21kthreadcore09:26:280
373795399178,4cyclictest0-21swapper/012:35:000
3737953991714,2cyclictest39410-21systemd12:30:000
3737953991714,2cyclictest3824840-21perf08:20:000
3737953991714,2cyclictest1326-21systemd-logind10:45:010
3737953991714,2cyclictest1326-21systemd-logind10:10:000
3737953991713,3cyclictest4051538-21kworker/u16:1+nfsiod11:02:170
3737953991713,3cyclictest1329-21rs:main0
3737953991713,3cyclictest1326-21systemd-logind11:40:000
2902298170,2rtkit-daemon0-21swapper/110:15:511
2649091170,2phc2sys0-21swapper/312:19:153
2649091170,2phc2sys0-21swapper/309:11:423
3737955991614,1cyclictest0-21swapper/209:41:282
3737955991613,1cyclictest0-21swapper/212:26:232
3737955991613,1cyclictest0-21swapper/212:21:302
3737955991613,1cyclictest0-21swapper/212:06:212
3737955991613,1cyclictest0-21swapper/212:00:012
3737955991613,1cyclictest0-21swapper/211:51:192
3737955991613,1cyclictest0-21swapper/211:36:302
3737955991613,1cyclictest0-21swapper/211:21:322
3737955991613,1cyclictest0-21swapper/210:55:002
3737955991613,1cyclictest0-21swapper/210:31:312
3737955991613,1cyclictest0-21swapper/208:50:012
3737955991613,1cyclictest0-21swapper/208:40:002
3737955991613,1cyclictest0-21swapper/208:30:012
3737955991613,1cyclictest0-21swapper/208:10:012
3737955991613,1cyclictest0-21swapper/207:55:002
373795499167,4cyclictest0-21swapper/109:41:271
3737954991613,2cyclictest3926827-21needreboot09:31:281
3737954991613,2cyclictest1288-1atopacctd09:17:371
3737954991613,2cyclictest1288-1atopacctd09:17:371
3737954991612,3cyclictest4164065-21kworker/u16:1+nfsiod12:24:531
3737954991612,3cyclictest4164065-21kworker/u16:1+nfsiod12:09:121
3737954991612,3cyclictest4146716-21kworker/u16:0+nfsiod12:01:121
3737954991611,4cyclictest3777509-21sort07:41:231
3737954991610,2cyclictest134050irq/121-eno110:28:451
373795399169,6cyclictest0-21swapper/011:51:210
373795399165,6cyclictest4148419-21cut11:41:210
373795399164,7cyclictest3999925-21sshd10:15:510
373795399162,8cyclictest3811830-21cat08:06:290
373795399162,7cyclictest4108169-21cut11:16:280
3737953991613,2cyclictest4131102-21fschecks_time11:31:240
3737953991613,2cyclictest4131102-21fschecks_time11:31:240
3737953991613,2cyclictest4016539-21perf10:25:000
3737953991613,2cyclictest3752451-21cut07:20:010
3737953991613,2cyclictest21996-21sh12:20:000
3737953991613,2cyclictest1290-21dbus-daemon08:55:020
3737953991612,3cyclictest3981841-21kworker/u16:0+nfsiod10:34:090
3737953991612,2cyclictest3955870-21latency_hist09:50:020
3737953991610,5cyclictest1109-21hwrng11:25:010
2649091162,2phc2sys0-21swapper/312:26:173
2649091160,2phc2sys0-21swapper/312:22:393
2649091160,2phc2sys0-21swapper/311:17:113
2649091160,1phc2sys0-21swapper/309:58:363
3737955991512,1cyclictest0-21swapper/211:31:272
3737955991512,1cyclictest0-21swapper/211:31:272
3737955991512,1cyclictest0-21swapper/210:41:332
3737955991512,1cyclictest0-21swapper/210:05:002
3737955991512,1cyclictest0-21swapper/209:10:012
3737955991512,1cyclictest0-21swapper/207:41:262
3737955991512,1cyclictest0-21swapper/207:40:012
3737955991512,1cyclictest0-21swapper/207:11:232
373795499159,2cyclictest134050irq/121-eno112:35:001
3737954991513,1cyclictest29021-21rtkit-daemon09:39:361
3737954991512,2cyclictest4138195-21latency_hist11:35:011
3737954991512,2cyclictest4138195-21latency_hist11:35:011
3737954991512,2cyclictest3882969-21kthreadcore09:06:281
3737954991512,2cyclictest3873800-21munin-plugin-st09:00:011
3737954991512,2cyclictest3842983-21cut08:35:001
3737954991512,2cyclictest3737951-21cyclictest07:21:311
3737954991512,2cyclictest0-21swapper/108:40:001
3737954991511,3cyclictest4116527-21kthreadcore11:21:271
3737954991511,3cyclictest4083452-21needreboot11:01:301
3737954991511,3cyclictest3903361-21kworker/u16:3+nfsiod10:10:391
3737954991510,4cyclictest3737951-21cyclictest09:01:281
373795399158,4cyclictest1-21systemd09:10:010
373795399157,4cyclictest0-21swapper/012:21:260
373795399156,5cyclictest0-21swapper/010:03:450
373795399156,4cyclictest0-21swapper/011:56:290
373795399156,2cyclictest0-21swapper/011:26:240
3737953991512,2cyclictest4097275-21kthreadcore11:11:290
3737953991512,2cyclictest3873749-21sendmail09:00:000
3737953991512,2cyclictest3836262-21mailstats08:26:330
3737953991512,2cyclictest3803889-21kthreadcore08:01:300
3737953991512,2cyclictest3745028-21kthreadcore07:15:010
3737953991512,2cyclictest1290-21dbus-daemon07:45:020
3737953991512,2cyclictest1288-1atopacctd09:36:270
3737953991512,2cyclictest0-21swapper/012:15:000
3737953991511,3cyclictest3903361-21kworker/u16:3+nfsiod12:08:510
3737953991511,3cyclictest3890566-21kthreadcore09:11:290
3737953991511,3cyclictest3879889-21systemd-run09:05:010
2649091150,2phc2sys0-21swapper/311:47:163
2649091150,2phc2sys0-21swapper/311:10:363
2649091150,2phc2sys0-21swapper/309:40:293
2649091150,1phc2sys0-21swapper/310:06:123
3737955991411,1cyclictest0-21swapper/212:11:222
3737955991411,1cyclictest0-21swapper/211:25:422
3737955991411,1cyclictest0-21swapper/210:36:182
3737955991411,1cyclictest0-21swapper/210:11:302
3737955991411,1cyclictest0-21swapper/209:56:272
3737955991411,1cyclictest0-21swapper/209:30:212
3737955991411,1cyclictest0-21swapper/208:31:222
3737955991411,1cyclictest0-21swapper/208:16:302
3737955991411,1cyclictest0-21swapper/207:30:022
3737955991410,2cyclictest0-21swapper/210:56:342
3737955991410,2cyclictest0-21swapper/209:11:282
3737955991410,2cyclictest0-21swapper/207:15:032
373795499148,5cyclictest1288-1atopacctd11:14:211
373795499144,2cyclictest3764373-21latency_hist07:30:001
3737954991412,1cyclictest29021-21rtkit-daemon08:29:501
3737954991411,2cyclictest8219-21kthreadcore12:11:271
3737954991411,2cyclictest4089723-21kthreadcore11:06:291
3737954991411,2cyclictest3912179-21sh09:25:011
3737954991411,2cyclictest3819320-21head08:16:231
3737954991411,2cyclictest3795600-21sh07:56:241
3737954991411,2cyclictest3746204-21cstates07:15:021
3737954991411,2cyclictest1290-21dbus-daemon08:55:011
3737954991410,3cyclictest4073677-21kthreadcore10:56:291
3737954991410,3cyclictest3849417-21kworker/u16:2+nfsiod10:50:521
3737954991410,3cyclictest3849417-21kworker/u16:2+nfsiod09:55:181
373795499140,3cyclictest0-21swapper/108:11:151
373795399145,4cyclictest0-21swapper/010:36:220
373795399144,9cyclictest3755526-21tr07:21:270
373795399142,7cyclictest3830932-21awk08:25:000
3737953991411,2cyclictest50749-21kthreadcore12:36:260
3737953991411,2cyclictest3856348-21fschecks_time08:46:230
3737953991411,2cyclictest3850346-21fschecks_time08:41:230
3737953991411,2cyclictest3795077-21aten_repower_cu07:56:210
3737953991410,3cyclictest4051538-21kworker/u16:1+nfsiod10:49:010
3737953991410,3cyclictest3762852-21kthreadcore07:26:280
2649091141,3phc2sys0-21swapper/309:16:203
2649091141,3phc2sys0-21swapper/309:16:203
2649091140,2phc2sys0-21swapper/310:54:383
2649091140,2phc2sys0-21swapper/310:23:083
2649091140,2phc2sys0-21swapper/309:54:093
2649091140,1phc2sys0-21swapper/310:02:173
2649091140,1phc2sys0-21swapper/309:31:213
373795599139,2cyclictest0-21swapper/212:31:272
3737955991311,1cyclictest0-21swapper/211:45:122
3737955991311,1cyclictest0-21swapper/211:12:092
3737955991311,1cyclictest0-21swapper/208:01:262
3737955991311,1cyclictest0-21swapper/207:46:212
3737955991311,1cyclictest0-21swapper/207:35:012
3737955991310,1cyclictest0-21swapper/212:02:202
3737955991310,1cyclictest0-21swapper/211:05:202
3737955991310,1cyclictest0-21swapper/211:01:152
3737955991310,1cyclictest0-21swapper/210:46:302
3737955991310,1cyclictest0-21swapper/210:06:252
3737955991310,1cyclictest0-21swapper/209:51:272
3737955991310,1cyclictest0-21swapper/209:01:282
3737955991310,1cyclictest0-21swapper/208:21:272
3737955991310,1cyclictest0-21swapper/207:25:002
3737955991310,1cyclictest0-21swapper/207:10:002
373795499139,3cyclictest3853633-21kthreadcore08:41:281
373795499139,3cyclictest3787546-21runrttasks07:46:281
3737954991310,2cyclictest4008938-21/usr/sbin/munin10:21:291
3737954991310,2cyclictest3860909-21timerwakeupswit08:46:321
3737954991310,2cyclictest3825533-21cpuspeed_turbos08:21:221
3737954991310,2cyclictest3811929-21pmu-power08:06:301
3737954991310,2cyclictest3790043-21irqcore07:51:251
3737954991310,2cyclictest3737951-21cyclictest07:31:271
373795399132,6cyclictest0-21swapper/009:21:300
3737953991312,1cyclictest0-21swapper/007:31:310
3737953991310,2cyclictest3814491-21kthreadcore08:11:270
2649091131,2phc2sys0-21swapper/310:44:413
2649091130,4phc2sys0-21swapper/312:35:053
2649091130,3phc2sys0-21swapper/309:28:373
2649091130,2phc2sys0-21swapper/312:05:493
2649091130,2phc2sys0-21swapper/309:46:273
2649091130,2phc2sys0-21swapper/309:35:483
2649091130,1phc2sys0-21swapper/307:49:563
373795599129,2cyclictest0-21swapper/208:56:282
373795599129,1cyclictest0-21swapper/208:40:092
3737955991210,1cyclictest0-21swapper/212:35:572
3737955991210,1cyclictest0-21swapper/211:16:242
3737955991210,1cyclictest0-21swapper/210:21:282
373795499129,2cyclictest4149912-21kthreadcore11:41:241
373795499122,1cyclictest491rcuog/208:00:571
3737954991210,1cyclictest4035303-21sh10:36:211
373795399129,2cyclictest3837619-21cpuspeed_turbos08:31:200
373795399120,7cyclictest3770874-21aten_repower_en07:36:200
373795399120,11cyclictest3738044-21cat07:10:010
2649091124,2phc2sys0-21swapper/312:02:483
2649091121,2phc2sys0-21swapper/309:22:333
2649091120,2phc2sys0-21swapper/310:31:503
2649091120,2phc2sys0-21swapper/308:41:263
37590882110,2sleep30-21swapper/307:26:223
373795599119,1cyclictest0-21swapper/209:16:002
373795599119,1cyclictest0-21swapper/209:16:002
2649091112,2phc2sys0-21swapper/311:26:143
2649091111,2phc2sys0-21swapper/311:45:013
2649091110,2phc2sys0-21swapper/310:46:283
2649091110,2phc2sys0-21swapper/308:10:203
2649091110,1phc2sys0-21swapper/311:04:373
2649091110,1phc2sys0-21swapper/308:49:553
2649091110,1phc2sys0-21swapper/308:01:423
2649091110,1phc2sys0-21swapper/307:53:283
373795499104,4cyclictest1-21systemd07:10:011
2649091104,2phc2sys0-21swapper/310:35:303
2649091101,2phc2sys0-21swapper/310:30:023
2649091101,2phc2sys0-21swapper/308:16:293
2649091101,2phc2sys0-21swapper/307:31:323
2649091101,2phc2sys0-21swapper/307:21:223
2649091101,2phc2sys0-21swapper/307:10:003
2649091100,4phc2sys0-21swapper/308:36:283
2649091100,2phc2sys0-21swapper/311:31:433
2649091100,2phc2sys0-21swapper/311:31:433
2649091100,2phc2sys0-21swapper/310:58:163
2649091100,2phc2sys0-21swapper/310:13:113
2649091100,2phc2sys0-21swapper/308:06:313
2649091100,2phc2sys0-21swapper/307:40:333
2649091100,1phc2sys0-21swapper/308:34:083
264909191,2phc2sys0-21swapper/311:56:033
264909191,2phc2sys0-21swapper/311:35:393
264909191,2phc2sys0-21swapper/308:56:323
264909190,2phc2sys0-21swapper/311:05:063
264909190,2phc2sys0-21swapper/309:01:113
264909190,2phc2sys0-21swapper/308:50:393
264909190,2phc2sys0-21swapper/308:25:073
264909190,2phc2sys0-21swapper/308:21:303
264909190,2phc2sys0-21swapper/307:56:243
264909190,2phc2sys0-21swapper/307:16:333
264909190,2phc2sys0-21swapper/307:11:283
264909190,1phc2sys0-21swapper/307:35:573
264909180,3phc2sys0-21swapper/309:06:213
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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