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2026-05-03 - 13:25
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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 Sun May 03, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29952421510,3sleep30-21swapper/323:10:363
4151777992522,2cyclictest1290-21dbus-daemon00:40:010
4151777992513,6cyclictest0-21swapper/022:40:020
4151779992421,1cyclictest0-21swapper/222:00:002
4151777992414,6cyclictest355352-21latency_hist23:50:020
4151778992317,2cyclictest134050irq/121-eno122:05:001
4151777992320,2cyclictest186915-21latency_hist22:00:000
4151777992320,2cyclictest171709-21apt-config21:50:010
2649091230,4phc2sys0-21swapper/319:25:243
4151778992219,2cyclictest126009-21latency_hist21:20:011
4151777992219,2cyclictest408847-21systemd-run00:25:010
4151777992212,5cyclictest1290-21dbus-daemon21:35:010
4151777992212,5cyclictest1290-21dbus-daemon20:25:010
4151777992211,6cyclictest0-21swapper/000:35:010
4151778992114,3cyclictest336633-21kthreadcore23:35:331
415177799213,3cyclictest270548-21cron22:55:010
4151777992112,5cyclictest0-21swapper/022:05:320
4129982210,0sleep1413001-21cut00:25:331
4151778992012,4cyclictest3827634-1atopacctd22:16:521
4151778992012,3cyclictest0-21swapper/122:55:021
415177799209,6cyclictest0-21swapper/021:54:180
4151777992017,2cyclictest47930-21cut20:20:000
4151777992017,2cyclictest4158404-21systemd-run19:15:010
415177799197,7cyclictest0-21swapper/021:15:260
4151777991916,2cyclictest401049-21sendmail00:20:010
4151777991916,2cyclictest401049-21sendmail00:20:010
4151777991916,2cyclictest1326-21systemd-logind00:10:020
4151777991912,6cyclictest0-21swapper/023:45:000
2649091190,3phc2sys0-21swapper/322:36:373
4151779991814,2cyclictest0-21swapper/200:30:332
415177899188,4cyclictest0-21swapper/122:20:251
415177899186,2cyclictest134050irq/121-eno100:20:011
415177899186,2cyclictest134050irq/121-eno100:20:011
415177899181,9cyclictest416757-21sh00:30:251
4151778991815,2cyclictest203455-21if_enp1s0.822:10:291
4151778991815,2cyclictest0-21swapper/123:05:001
4151778991815,2cyclictest0-21swapper/119:15:011
4151778991815,2cyclictest0-21swapper/100:15:011
415177799189,5cyclictest3827634-1atopacctd22:45:010
415177799187,6cyclictest0-21swapper/023:25:370
415177799187,6cyclictest0-21swapper/023:15:320
415177799187,6cyclictest0-21swapper/021:25:240
4151777991815,2cyclictest85456-21systemd-run20:50:010
4151777991815,2cyclictest35455-21latency_hist20:10:000
4151777991815,2cyclictest163937-21cut21:45:000
4151777991815,2cyclictest0-21swapper/023:25:000
4151777991812,5cyclictest386030-21aten_repower_cu00:10:250
4151777991811,6cyclictest0-21swapper/023:35:000
4151777991811,6cyclictest0-21swapper/022:30:020
4151777991811,1cyclictest255781-21ssh22:45:240
2649091180,2phc2sys0-21swapper/321:41:473
2649091180,2phc2sys0-21swapper/320:25:283
4151779991714,1cyclictest0-21swapper/222:55:022
4151779991714,1cyclictest0-21swapper/222:19:202
415177899179,3cyclictest0-21swapper/121:45:011
4151778991714,2cyclictest429439-21mailstats00:35:361
4151778991714,2cyclictest243474-21tr22:35:321
4151778991714,2cyclictest240115-21ls22:35:001
4151778991714,2cyclictest168685-21kthreadcore21:45:331
4151778991714,2cyclictest156264-21idleruntime-cro21:40:001
4151778991714,2cyclictest0-21swapper/122:50:001
4151778991714,2cyclictest0-21swapper/122:30:021
4151778991713,3cyclictest7400-21kthreadcore19:45:351
4151778991713,3cyclictest69855-21kthreadcore20:35:331
4151778991713,3cyclictest4176310-21kthreadcore19:25:331
4151778991713,3cyclictest4158978-21kthreadcore19:15:021
4151778991710,2cyclictest134050irq/121-eno123:45:001
415177799179,4cyclictest0-21swapper/023:40:010
415177799178,8cyclictest0-21swapper/022:00:240
415177799178,1cyclictest217714-21ssh22:20:250
4151777991714,2cyclictest4173312-21cut19:25:020
4151777991714,2cyclictest3952751-21ntpd23:55:310
4151777991714,2cyclictest295099-21grep23:10:290
4151777991714,2cyclictest225138-21kworker/u16:1-events_power_efficient23:50:310
4151777991714,2cyclictest129931-21kthreadcore21:20:310
4151777991713,3cyclictest16657-21latency_hist19:55:000
2649091170,2phc2sys0-21swapper/323:25:213
2649091170,2phc2sys0-21swapper/300:37:233
4151779991613,1cyclictest0-21swapper/219:49:512
4151779991613,1cyclictest0-21swapper/200:30:002
4151779991612,2cyclictest0-21swapper/221:00:392
415177899169,2cyclictest0-21swapper/100:25:001
415177899169,1cyclictest134050irq/121-eno123:56:401
415177899168,3cyclictest0-21swapper/122:44:181
4151778991613,2cyclictest47905-21idleruntime-cro20:20:001
4151778991613,2cyclictest3827634-1atopacctd23:35:021
4151778991613,2cyclictest309114-21cron23:20:001
4151778991613,2cyclictest202393-21systemd-run22:10:021
4151778991613,2cyclictest15931-21systemctl19:50:361
4151778991613,2cyclictest116022-21tail21:10:351
4151778991612,3cyclictest1326-21systemd-logind20:35:001
4151778991612,3cyclictest127659-21kthreadcore21:20:301
4151778991610,5cyclictest4158262-21munin-node20:40:141
4151778991610,2cyclictest3834328-21sendmail-mta19:40:001
415177799163,8cyclictest414723-21vmstat00:25:400
415177799163,8cyclictest370815-21/usr/sbin/munin00:00:290
415177799163,5cyclictest110432-21latency_hist21:10:010
415177799161,4cyclictest286742-21/usr/sbin/munin23:05:370
4151777991613,2cyclictest68080-21cut20:35:320
4151777991613,2cyclictest4151771-21cyclictest19:40:320
4151777991613,2cyclictest1996-21runrttasks22:19:200
4151777991613,2cyclictest117932-21ssh21:15:000
4151777991613,2cyclictest10425-21cut19:50:000
4151777991612,2cyclictest104322-21systemd21:05:020
4151777991611,4cyclictest3851698-21mta-sts-daemon23:00:270
2649091160,2phc2sys0-21swapper/323:56:113
2649091160,2phc2sys0-21swapper/323:05:333
2649091160,2phc2sys0-21swapper/300:07:203
2649091160,1phc2sys0-21swapper/321:28:563
4151779991513,1cyclictest0-21swapper/222:13:292
4151779991513,1cyclictest0-21swapper/219:30:022
4151779991512,1cyclictest0-21swapper/223:00:312
4151779991512,1cyclictest0-21swapper/222:32:192
4151779991512,1cyclictest0-21swapper/221:49:572
4151779991512,1cyclictest0-21swapper/219:35:332
4151779991511,2cyclictest0-21swapper/222:59:272
4151778991512,2cyclictest4151771-21cyclictest23:51:101
4151778991512,2cyclictest3851704-21mta-sts-daemon20:50:011
4151778991512,2cyclictest3851702-21mta-sts-daemon21:58:501
4151778991512,2cyclictest3827634-1atopacctd21:34:461
4151778991512,2cyclictest353017-21grep23:45:331
4151778991512,2cyclictest172192-21aten_repower_cu21:50:261
4151778991512,2cyclictest104628-21head21:05:261
4151778991512,2cyclictest0-21swapper/123:30:021
4151778991512,2cyclictest0-21swapper/123:15:011
4151778991512,2cyclictest0-21swapper/123:00:001
4151778991512,2cyclictest0-21swapper/100:10:021
415177799159,5cyclictest234743-21kthreadcore22:30:320
415177799158,4cyclictest85747-21tail20:50:250
415177799154,10cyclictest4181919-21cat19:30:320
415177799151,9cyclictest149139-21awk21:35:250
4151777991512,2cyclictest4179537-21munin-plugin-st19:30:020
4151777991512,2cyclictest35835-21aten_repower_fr20:10:250
4151777991512,2cyclictest193584-21GUsbEventThread22:13:290
4151777991511,3cyclictest3851704-21mta-sts-daemon19:55:330
4151777991511,2cyclictest3851702-21mta-sts-daemon22:57:580
383433398150,5rtkit-daemon3851703-21mta-sts-daemon00:03:131
2649091151,2phc2sys0-21swapper/323:53:503
2649091150,2phc2sys0-21swapper/321:46:493
2649091150,2phc2sys0-21swapper/321:05:443
415177999149,2cyclictest0-21swapper/222:20:212
4151779991412,1cyclictest0-21swapper/221:29:042
4151779991411,2cyclictest0-21swapper/222:02:102
4151779991411,1cyclictest0-21swapper/223:35:332
4151779991411,1cyclictest0-21swapper/222:05:492
4151779991411,1cyclictest0-21swapper/221:38:432
4151779991411,1cyclictest0-21swapper/221:35:002
4151779991411,1cyclictest0-21swapper/221:20:062
4151779991411,1cyclictest0-21swapper/219:20:502
4151779991411,1cyclictest0-21swapper/200:25:002
4151779991411,1cyclictest0-21swapper/200:07:142
4151779991410,2cyclictest0-21swapper/223:08:222
4151779991410,2cyclictest0-21swapper/221:43:592
4151779991410,2cyclictest0-21swapper/220:39:162
4151779991410,2cyclictest0-21swapper/219:55:322
4151779991410,2cyclictest0-21swapper/219:10:322
415177999140,9cyclictest0-21swapper/222:30:012
415177899149,4cyclictest4158262-21munin-node19:44:321
4151778991411,2cyclictest55081-21cut20:25:251
4151778991411,2cyclictest3880722-21gmain20:55:021
4151778991411,2cyclictest309849-21cpuspeed23:20:251
4151778991411,2cyclictest292038-21mailstats23:05:361
4151778991411,2cyclictest134101-21aten_repower_vo21:25:251
4151778991411,2cyclictest0-21swapper/120:10:011
4151778991410,3cyclictest17774-21idleruntime19:55:291
4151778991410,2cyclictest98082-21systemd-run21:00:021
415177799142,7cyclictest16-21ksoftirqd/019:10:020
415177799141,7cyclictest1290-21dbus-daemon20:35:020
4151777991411,2cyclictest76110-21kthreadcore20:40:310
4151777991411,2cyclictest4190782-21latency19:35:330
4151777991411,2cyclictest4161443-21fschecks_count19:15:290
4151777991410,3cyclictest55807-21kthreadcore20:25:290
2649091141,6phc2sys0-21swapper/321:00:263
2649091140,5phc2sys0-21swapper/323:42:503
2649091140,2phc2sys0-21swapper/323:39:423
2649091140,2phc2sys0-21swapper/322:30:203
2649091140,2phc2sys0-21swapper/322:14:453
2649091140,2phc2sys0-21swapper/321:23:393
2649091140,2phc2sys0-21swapper/321:15:173
2649091140,2phc2sys0-21swapper/300:21:203
2649091140,1phc2sys0-21swapper/320:21:033
2649091140,1phc2sys0-21swapper/319:56:513
415177999139,2cyclictest0-21swapper/220:50:242
4151779991310,2cyclictest0-21swapper/222:43:152
4151779991310,1cyclictest0-21swapper/223:51:552
4151779991310,1cyclictest0-21swapper/223:18:342
4151779991310,1cyclictest0-21swapper/223:10:142
4151779991310,1cyclictest0-21swapper/222:46:142
4151779991310,1cyclictest0-21swapper/222:36:062
4151779991310,1cyclictest0-21swapper/221:53:502
4151779991310,1cyclictest0-21swapper/221:15:402
4151779991310,1cyclictest0-21swapper/220:10:312
4151779991310,1cyclictest0-21swapper/220:05:292
4151779991310,1cyclictest0-21swapper/220:01:502
4151779991310,1cyclictest0-21swapper/220:01:502
4151779991310,1cyclictest0-21swapper/200:37:412
415177899139,3cyclictest25178-21kthreadcore20:00:321
415177899139,3cyclictest25178-21kthreadcore20:00:321
415177899139,2cyclictest0-21swapper/120:15:001
415177899138,3cyclictest4183259-21kthreadcore19:30:331
415177899137,5cyclictest3851875-21systemd-journal21:05:001
4151778991310,2cyclictest48851-21cut20:20:271
4151778991310,2cyclictest4168447-21kernelversion19:20:311
415177799131,7cyclictest91945-21/usr/sbin/munin20:55:300
4151777991310,2cyclictest27638-21kthreadcore20:00:330
4151777991310,2cyclictest27638-21kthreadcore20:00:330
2649091130,4phc2sys0-21swapper/323:16:403
2649091130,2phc2sys0-21swapper/320:59:503
2649091130,2phc2sys0-21swapper/320:42:073
2649091130,2phc2sys0-21swapper/320:12:023
2649091130,2phc2sys0-21swapper/300:10:183
2649091130,1phc2sys0-21swapper/322:59:433
2649091130,1phc2sys0-21swapper/319:09:133
415177999129,1cyclictest0-21swapper/223:45:242
415177999129,1cyclictest0-21swapper/223:25:262
415177999129,1cyclictest0-21swapper/220:45:332
415177999129,1cyclictest0-21swapper/220:40:332
415177999129,1cyclictest0-21swapper/220:30:292
415177999129,1cyclictest0-21swapper/219:40:282
415177999129,1cyclictest0-21swapper/200:10:192
415177999128,2cyclictest0-21swapper/223:55:272
4151779991210,1cyclictest0-21swapper/221:10:012
4151779991210,1cyclictest0-21swapper/220:55:312
4151779991210,1cyclictest0-21swapper/219:50:312
4151779991210,1cyclictest0-21swapper/200:05:022
415177899129,2cyclictest4151818-21gpgv19:10:011
3320082120,2sleep30-21swapper/323:34:263
2649091121,5phc2sys0-21swapper/319:15:253
2649091121,3phc2sys0-21swapper/322:03:353
2649091120,2phc2sys0-21swapper/322:25:033
2649091120,2phc2sys0-21swapper/322:21:233
2649091120,2phc2sys0-21swapper/321:30:243
2649091120,2phc2sys0-21swapper/320:09:533
2649091120,1phc2sys0-21swapper/322:40:113
415177999119,1cyclictest0-21swapper/223:20:322
415177999119,1cyclictest0-21swapper/221:10:352
415177999119,1cyclictest0-21swapper/219:30:042
415177999119,1cyclictest0-21swapper/219:18:582
415177999119,1cyclictest0-21swapper/200:20:022
415177999119,1cyclictest0-21swapper/200:20:012
415177999118,1cyclictest0-21swapper/223:42:262
415177999118,1cyclictest0-21swapper/220:25:332
415177999111,7cyclictest324958-21chrt23:30:032
2649091116,2phc2sys0-21swapper/300:30:213
2649091111,3phc2sys0-21swapper/323:00:233
2649091110,2phc2sys0-21swapper/323:20:243
2649091110,2phc2sys0-21swapper/322:47:133
2649091110,2phc2sys0-21swapper/321:55:503
2649091110,2phc2sys0-21swapper/320:50:203
2649091110,2phc2sys0-21swapper/320:45:323
2649091110,1phc2sys0-21swapper/321:50:163
2649091110,1phc2sys0-21swapper/320:15:503
2649091110,1phc2sys0-21swapper/319:32:583
415177999108,1cyclictest0-21swapper/220:20:252
415177999101,6cyclictest41934-21chrt20:15:032
2649091104,2phc2sys0-21swapper/319:50:333
2649091103,3phc2sys0-21swapper/300:02:153
2649091101,2phc2sys0-21swapper/321:35:053
2649091101,2phc2sys0-21swapper/320:30:253
2649091101,2phc2sys0-21swapper/319:20:313
2649091100,4phc2sys0-21swapper/322:50:243
2649091100,4phc2sys0-21swapper/319:10:243
2649091100,2phc2sys0-21swapper/323:46:383
2649091100,2phc2sys0-21swapper/322:15:583
2649091100,2phc2sys0-21swapper/322:05:323
2649091100,2phc2sys0-21swapper/321:10:243
2649091100,2phc2sys0-21swapper/320:35:303
2649091100,2phc2sys0-21swapper/320:00:293
2649091100,2phc2sys0-21swapper/320:00:283
2649091100,2phc2sys0-21swapper/319:48:133
2649091100,2phc2sys0-21swapper/300:26:333
2649091100,2phc2sys0-21swapper/300:16:153
2649091100,2phc2sys0-21swapper/300:16:153
2649091100,1phc2sys0-21swapper/319:44:293
264909190,2phc2sys0-21swapper/319:35:263
41517799980,5cyclictest0-21swapper/219:10:012
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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