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2026-03-22 - 15:29
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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 Sun Mar 22, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11023621110,1sleep00-21swapper/011:06:500
404916321010,2sleep30-21swapper/308:31:233
24694621000,2sleep20-21swapper/212:26:322
40394262990,2sleep30-21swapper/308:21:303
314402870,2sleep20-21swapper/210:21:402
3949155992916,9cyclictest42726-21munin-plugin-st10:30:020
3949155992914,7cyclictest30696-21missed_timers10:21:320
3949155992715,8cyclictest4127103-21kthreadcore09:26:290
3949162992516,4cyclictest0-21swapper/210:56:222
3949155992514,7cyclictest239599-21kthreadcore12:21:300
2523982250,1sleep0252399-21aten_repower_en12:31:230
3949155992418,5cyclictest1-21systemd10:10:010
3949155992411,6cyclictest176984-21kthreadcore11:46:310
40225992230,1sleep04022602-21cut08:06:320
394915599235,15cyclictest4060940-21sh08:40:010
3949155992317,5cyclictest77398-21grep10:50:010
3949155992313,8cyclictest0-21swapper/011:55:020
394915599228,8cyclictest0-21swapper/010:01:280
3949155992217,4cyclictest4184256-21sh10:00:010
41658152210,1sleep10-21swapper/109:48:441
3949160992118,2cyclictest4060715-21perf08:40:001
3949160992114,3cyclictest53257-21irqcore10:36:281
3949160992112,2cyclictest0-21swapper/112:31:221
394915599219,7cyclictest0-21swapper/010:31:210
394915599217,7cyclictest0-21swapper/010:41:290
3949155992110,7cyclictest156680-21/usr/sbin/munin11:36:220
394915599210,4cyclictest3988090-21/usr/sbin/munin07:41:260
1225212210,2sleep10-21swapper/111:16:251
3949162992013,3cyclictest0-21swapper/210:01:212
3949162992012,3cyclictest0-21swapper/208:21:232
3949160992017,2cyclictest7541-21/usr/sbin/munin10:10:001
3949160992017,2cyclictest4140833-21/usr/sbin/munin09:35:021
3949160992017,2cyclictest4023943-21sh08:10:001
3949160992016,2cyclictest4140727-21kworker/u16:3-rpciod11:40:021
394915599209,7cyclictest208943-21/usr/sbin/munin12:06:290
394915599209,7cyclictest131286-21gltestperf11:21:250
394915599207,8cyclictest0-21swapper/012:26:300
3949155992014,5cyclictest1-21systemd09:15:010
394915599200,4cyclictest17336-21aten_repower_fr10:16:230
394915599200,16cyclictest0-21swapper/009:17:330
394915599200,16cyclictest0-21swapper/009:17:330
394915599200,15cyclictest4040130-21cut08:21:300
3949160991916,2cyclictest24766-21sendmail10:20:001
394915599197,7cyclictest0-21swapper/011:31:290
394915599197,7cyclictest0-21swapper/009:41:340
3949155991914,4cyclictest4149462-21systemd-run09:40:020
3949155991914,4cyclictest4090886-21cron09:05:000
3949155991914,4cyclictest4036454-21cut08:20:020
3949155991914,4cyclictest3949147-21cyclictest12:16:370
3949155991914,4cyclictest1-21systemd11:26:240
3949155991914,4cyclictest1178-21rpcbind10:54:350
3949155991913,5cyclictest4006510-21cpuspeed_turbos07:56:250
3949155991913,5cyclictest3963769-21latency_hist07:20:020
3949155991913,5cyclictest1286-21avahi-daemon10:15:010
394915599191,14cyclictest4085065-21munin-run09:00:010
2649091190,2phc2sys0-21swapper/309:27:363
394916299186,9cyclictest1122932sleep211:10:022
3949162991815,1cyclictest0-21swapper/207:10:012
3949162991814,1cyclictest0-21swapper/209:01:222
394916099189,4cyclictest0-21swapper/110:35:021
3949160991815,2cyclictest138466-21systemd-run11:25:021
3949160991811,2cyclictest0-21swapper/110:01:291
394915599187,7cyclictest0-21swapper/009:21:290
394915599185,9cyclictest263695-21kthreadcore12:36:300
394915599185,8cyclictest0-21swapper/009:10:010
394915599184,9cyclictest4137715-21cat09:31:300
394915599181,9cyclictest0-21swapper/012:04:210
3949155991813,4cyclictest29021-21rtkit-daemon08:33:180
3949155991813,4cyclictest0-21swapper/012:15:000
394915599181,2cyclictest0-21swapper/011:40:440
3949155991812,5cyclictest97663-21kthreadcore11:01:280
3949155991812,5cyclictest4024936-21cstates08:11:240
3949155991812,5cyclictest4015939-21kthreadcore08:01:310
3949155991812,5cyclictest3949147-21cyclictest11:18:080
3949155991812,5cyclictest199391-21sh12:00:020
3949155991812,5cyclictest1288-1atopacctd07:45:550
394915599181,12cyclictest3964561-21cut07:21:250
3949155991810,7cyclictest119989-21runrttasks11:13:440
3949162991714,1cyclictest0-21swapper/211:53:142
3949162991714,1cyclictest0-21swapper/211:36:282
3949162991714,1cyclictest0-21swapper/209:55:012
394916099179,3cyclictest4125628-21kthreadcore09:26:271
394916099179,3cyclictest0-21swapper/109:55:011
3949160991714,2cyclictest77435-21/usr/sbin/munin10:50:001
3949160991714,2cyclictest3955871-21kthreadcore07:15:021
3949160991714,2cyclictest3949147-21cyclictest09:36:281
3949160991714,2cyclictest29021-21rtkit-daemon10:21:521
3949160991714,2cyclictest16384-21latency_hist10:15:011
3949160991714,2cyclictest112131-21cron11:10:001
394915599177,4cyclictest0-21swapper/009:45:340
394915599174,8cyclictest4046999-21tr08:26:300
394915599173,9cyclictest0-21swapper/009:50:250
394915599173,5cyclictest3975853-21cat07:30:020
3949155991714,3cyclictest0-21swapper/008:40:390
3949155991711,5cyclictest4068438-21kernelversion08:46:300
3949155991711,5cyclictest3987168-21timerandwakeup07:36:340
3949155991711,5cyclictest3952580-21kthreadcore07:11:310
3949155991710,5cyclictest88073-21gltestperf10:56:260
3949155991710,5cyclictest4004673-21kthreadcore07:51:310
394915599170,12cyclictest52544-21tr10:36:240
2649091170,2phc2sys0-21swapper/312:23:063
2649091170,2phc2sys0-21swapper/312:03:023
2649091170,2phc2sys0-21swapper/310:24:513
394916299163,7cyclictest0-21swapper/209:10:012
394916299163,5cyclictest0-21swapper/209:40:012
3949162991613,1cyclictest0-21swapper/212:19:382
3949162991613,1cyclictest0-21swapper/211:56:562
3949162991613,1cyclictest0-21swapper/209:56:292
3949162991613,1cyclictest0-21swapper/209:11:222
3949162991610,2cyclictest0-21swapper/209:21:212
394916099169,3cyclictest4100648-21kthreadcore09:11:291
3949160991613,2cyclictest42454-21apt-key10:30:011
3949160991613,2cyclictest4042565-21gpgconf08:25:011
3949160991613,2cyclictest3949147-21cyclictest11:41:241
3949160991613,2cyclictest29021-21rtkit-daemon11:01:361
3949160991613,2cyclictest263629-21kthreadcore12:36:301
3949160991613,2cyclictest214098-21mailstats12:06:341
3949160991613,2cyclictest1290-21dbus-daemon12:15:001
3949160991613,2cyclictest0-21swapper/112:16:291
3949160991612,3cyclictest246554-21kthreadcore12:26:321
3949160991612,2cyclictest1290-21dbus-daemon08:20:021
394916099160,1cyclictest0-21swapper/107:17:251
3949155991610,5cyclictest4074495-21kthreadcore08:51:310
394915599160,1cyclictest0-21swapper/007:31:340
2649091160,3phc2sys0-21swapper/312:05:463
2649091160,2phc2sys0-21swapper/310:01:203
2649091160,2phc2sys0-21swapper/309:59:533
2649091160,2phc2sys0-21swapper/308:01:273
2649091160,1phc2sys0-21swapper/312:38:013
2649091160,1phc2sys0-21swapper/311:55:213
394916299157,5cyclictest0-21swapper/209:30:012
3949162991512,1cyclictest0-21swapper/212:37:262
3949162991512,1cyclictest0-21swapper/211:20:012
3949162991512,1cyclictest0-21swapper/211:11:422
3949162991512,1cyclictest0-21swapper/211:01:222
3949162991512,1cyclictest0-21swapper/210:46:252
3949162991512,1cyclictest0-21swapper/210:41:422
3949162991512,1cyclictest0-21swapper/210:07:582
3949162991512,1cyclictest0-21swapper/209:16:082
3949162991512,1cyclictest0-21swapper/209:16:082
3949162991512,1cyclictest0-21swapper/208:55:012
3949162991512,1cyclictest0-21swapper/208:16:242
3949162991512,1cyclictest0-21swapper/208:06:332
3949162991512,1cyclictest0-21swapper/207:50:332
3949162991511,2cyclictest0-21swapper/211:46:252
3949162991511,2cyclictest0-21swapper/207:21:232
394916099156,3cyclictest4043145-21aten_repower_vo08:26:241
3949160991512,2cyclictest63843-21kthreadcore10:41:301
3949160991512,2cyclictest4078932-21latency_hist08:55:011
3949160991512,2cyclictest4054647-21dump-pmu-power08:35:001
3949160991512,2cyclictest3969734-21cut07:25:021
3949160991512,2cyclictest257-21systemd-journal10:55:001
3949160991512,2cyclictest1288-1atopacctd10:56:221
3949160991512,2cyclictest0-21swapper/111:56:331
3949160991511,3cyclictest4005058-21ptp4l-jitter07:51:341
394915599151,3cyclictest3949339-21munin-run07:10:010
2649091154,2phc2sys0-21swapper/310:57:093
2649091151,4phc2sys0-21swapper/312:33:023
2649091150,3phc2sys0-21swapper/312:15:353
2649091150,2phc2sys0-21swapper/307:56:303
2649091150,1phc2sys0-21swapper/309:04:483
394916299145,5cyclictest0-21swapper/211:30:012
3949162991411,1cyclictest0-21swapper/212:30:102
3949162991411,1cyclictest0-21swapper/212:21:342
3949162991411,1cyclictest0-21swapper/212:11:302
3949162991411,1cyclictest0-21swapper/210:36:292
3949162991411,1cyclictest0-21swapper/209:46:362
3949162991411,1cyclictest0-21swapper/209:41:302
3949162991411,1cyclictest0-21swapper/208:46:262
3949162991411,1cyclictest0-21swapper/208:00:012
3949162991411,1cyclictest0-21swapper/207:41:292
3949162991411,1cyclictest0-21swapper/207:34:112
3949162991410,2cyclictest0-21swapper/212:06:352
3949162991410,2cyclictest0-21swapper/210:26:042
394916099147,5cyclictest257-21systemd-journal08:11:551
394916099144,5cyclictest3970124-21tail07:26:261
3949160991411,2cyclictest4176597-21aten_repower_fr09:56:221
3949160991411,2cyclictest4152979-21kthreadcore09:41:291
3949160991411,2cyclictest4116891-21kthreadcore09:21:281
3949160991411,2cyclictest4072963-21cut08:50:011
3949160991411,2cyclictest4012231-21acpi08:01:221
3949160991411,2cyclictest240347-21unixbench_multi12:21:351
3949160991411,2cyclictest205040-21needreboot12:01:321
3949160991411,2cyclictest187460-21kthreadcore11:51:311
3949160991411,2cyclictest176984-21kthreadcore11:46:311
3949160991411,2cyclictest148435-21cstates11:31:251
3949160991411,2cyclictest143122-21kthreadcore11:26:321
3949160991411,2cyclictest1286-21avahi-daemon11:15:011
3949160991411,2cyclictest0-21swapper/109:05:011
3949160991410,3cyclictest4111052-21kthreadcore09:16:301
3949160991410,3cyclictest4111052-21kthreadcore09:16:301
3949160991410,3cyclictest4083720-21kthreadcore08:56:311
3949160991410,3cyclictest4062931-21kthreadcore08:41:291
3949160991410,3cyclictest3990870-21kthreadcore07:41:311
2649091141,4phc2sys0-21swapper/310:05:193
2649091140,4phc2sys0-21swapper/311:08:293
497142130,3sleep20-21swapper/210:32:422
40990502130,2sleep30-21swapper/309:11:283
394916299139,2cyclictest0-21swapper/211:41:242
394916299139,2cyclictest0-21swapper/208:36:252
394916299136,5cyclictest2077882sleep212:05:012
394916299131,8cyclictest0-21swapper/208:30:012
3949162991311,1cyclictest0-21swapper/211:20:172
3949162991311,1cyclictest0-21swapper/210:15:292
3949162991311,1cyclictest0-21swapper/208:26:232
3949162991311,1cyclictest0-21swapper/207:15:012
3949162991310,2cyclictest0-21swapper/210:11:242
3949162991310,2cyclictest0-21swapper/208:01:272
3949162991310,1cyclictest0-21swapper/211:31:362
3949162991310,1cyclictest0-21swapper/210:51:312
3949162991310,1cyclictest0-21swapper/208:56:352
3949162991310,1cyclictest0-21swapper/208:40:432
3949162991310,1cyclictest0-21swapper/208:11:272
3949162991310,1cyclictest0-21swapper/207:40:012
3949162991310,1cyclictest0-21swapper/207:16:272
394916099133,5cyclictest4091460-21tail09:06:261
3949160991310,2cyclictest4008960-21kthreadcore07:56:311
3949160991310,2cyclictest3994161-21aten_repower_cu07:46:251
3949160991310,2cyclictest3984807-21kthreadcore07:36:291
3949160991310,2cyclictest3981111-21timerandwakeup07:31:351
2649091130,2phc2sys0-21swapper/311:17:373
2649091130,2phc2sys0-21swapper/311:00:173
2649091130,2phc2sys0-21swapper/309:51:403
2649091130,1phc2sys0-21swapper/311:35:143
39827442120,3sleep30-21swapper/307:36:263
394916299124,4cyclictest0-21swapper/207:50:012
3949162991210,1cyclictest0-21swapper/209:30:102
3949162991210,1cyclictest0-21swapper/207:26:292
2649091120,2phc2sys0-21swapper/309:36:473
2649091120,2phc2sys0-21swapper/308:11:293
394916099118,2cyclictest3949293-21systemd-run07:10:011
2649091112,2phc2sys0-21swapper/308:56:253
2649091111,4phc2sys0-21swapper/311:31:223
2649091111,2phc2sys0-21swapper/309:30:323
2649091111,2phc2sys0-21swapper/308:26:283
2649091110,2phc2sys0-21swapper/311:45:153
2649091110,2phc2sys0-21swapper/311:29:033
2649091110,2phc2sys0-21swapper/311:21:213
2649091110,2phc2sys0-21swapper/310:52:063
2649091110,2phc2sys0-21swapper/310:48:473
2649091110,2phc2sys0-21swapper/310:25:233
2649091110,2phc2sys0-21swapper/309:16:223
2649091110,2phc2sys0-21swapper/309:16:223
2649091110,2phc2sys0-21swapper/307:41:233
2649091110,2phc2sys0-21swapper/307:31:223
2649091110,1phc2sys0-21swapper/308:53:163
2649091110,1phc2sys0-21swapper/307:12:583
2649091101,4phc2sys0-21swapper/308:06:233
2649091101,2phc2sys0-21swapper/312:26:233
2649091101,2phc2sys0-21swapper/311:41:293
2649091101,2phc2sys0-21swapper/310:12:083
2649091101,2phc2sys0-21swapper/309:06:283
2649091101,2phc2sys0-21swapper/307:51:253
2649091101,2phc2sys0-21swapper/307:21:323
2649091101,2phc2sys0-21swapper/307:06:293
2649091100,7phc2sys3955192-21turbostat07:19:553
2649091100,5phc2sys0-21swapper/308:36:243
2649091100,2phc2sys0-21swapper/312:11:203
2649091100,2phc2sys0-21swapper/311:54:453
2649091100,2phc2sys0-21swapper/311:11:233
2649091100,2phc2sys0-21swapper/310:41:343
2649091100,2phc2sys0-21swapper/310:35:213
2649091100,2phc2sys0-21swapper/310:30:123
2649091100,2phc2sys0-21swapper/309:45:273
2649091100,2phc2sys0-21swapper/309:21:353
2649091100,1phc2sys0-21swapper/309:41:383
2649091100,1phc2sys0-21swapper/308:17:063
2649091100,1phc2sys0-21swapper/307:48:053
227002100,2sleep30-21swapper/310:16:363
264909191,2phc2sys0-21swapper/307:26:293
264909190,2phc2sys0-21swapper/308:46:353
264909190,2phc2sys0-21swapper/308:40:023
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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