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2026-08-05 - 13:30
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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 Wed Aug 05, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
7882921010,1sleep10-21swapper/122:20:551
41314252730,2sleep30-21swapper/320:40:493
1795112720,1sleep00-21swapper/023:30:440
4015742992522,1cyclictest0-21swapper/221:55:012
4015739992219,2cyclictest117643-21grep22:50:011
4015738992219,2cyclictest4193297-21latency_hist21:30:000
4015738992218,2cyclictest0-21swapper/020:45:020
4015738992216,2cyclictest17750irq/127-ahci[0000:00:17.0]23:45:010
4015738992211,6cyclictest0-21swapper/021:35:020
4015738992211,6cyclictest0-21swapper/021:20:420
4015738992211,6cyclictest0-21swapper/000:40:000
4015739992116,3cyclictest4191739-21timerwakeupswit21:25:501
4015738992117,3cyclictest664-21dbus-daemon00:30:010
4015739992017,2cyclictest690-21rs:main1
4015739992017,2cyclictest676-21mta-sts-daemon23:45:011
4015739992017,2cyclictest664-21dbus-daemon22:40:021
4015739992017,2cyclictest664-21dbus-daemon22:40:021
4015739992017,2cyclictest1-21systemd00:40:011
401573899207,5cyclictest0-21swapper/021:15:250
4015738992017,2cyclictest0-21swapper/021:45:020
4015738992012,7cyclictest0-21swapper/022:40:010
4015738992012,7cyclictest0-21swapper/022:40:010
4015738992010,6cyclictest0-21swapper/023:50:450
1157598200,5rtkit-daemon351ktimers/100:23:521
4015742991916,1cyclictest0-21swapper/222:55:002
4015739991916,2cyclictest4133283-21latency_hist20:45:011
4015739991915,2cyclictest69250irq/121-eno123:05:441
401573899198,6cyclictest0-21swapper/020:20:010
4015738991913,5cyclictest662-21avahi-daemon00:10:020
4015738991911,6cyclictest0-21swapper/022:25:030
4015738991910,5cyclictest0-21swapper/023:55:470
401573899190,3cyclictest110101-21ssh22:44:460
4015742991815,1cyclictest0-21swapper/223:45:012
4015742991815,1cyclictest0-21swapper/200:20:532
4015742991814,1cyclictest0-21swapper/221:46:542
4015739991815,2cyclictest684-21systemd-logind19:30:021
4015739991815,2cyclictest4078599-21cut20:00:011
4015739991815,2cyclictest221079-21latency_hist00:00:021
4015739991815,2cyclictest213862-21systemd-run23:55:021
4015739991815,2cyclictest204400-21head23:45:501
4015739991812,4cyclictest1-21systemd19:25:011
401573899181,8cyclictest243417-21cat00:15:010
4015738991815,2cyclictest88159-21sh22:30:020
4015738991815,2cyclictest664-21dbus-daemon19:25:020
4015738991815,2cyclictest169380-21apt23:25:010
4015738991815,2cyclictest1306-21mta-sts-daemon19:35:020
4015738991810,4cyclictest1300-21mta-sts-daemon00:32:060
401573899180,7cyclictest4115026-21systemd-run20:30:010
3240591180,1phc2sys0-21swapper/321:52:363
1157598180,2rtkit-daemon1307-21mta-sts-daemon21:09:181
401574299171,8cyclictest0-21swapper/221:40:252
401574299171,6cyclictest0-21swapper/222:50:022
4015742991715,1cyclictest0-21swapper/219:15:022
4015742991714,1cyclictest0-21swapper/223:20:012
4015742991714,1cyclictest0-21swapper/222:35:022
4015742991714,1cyclictest0-21swapper/221:35:012
4015742991714,1cyclictest0-21swapper/200:25:472
4015742991714,1cyclictest0-21swapper/200:05:012
4015742991713,2cyclictest0-21swapper/222:55:562
4015739991714,2cyclictest88162-21systemd-run22:30:021
4015739991714,2cyclictest70277-21kthreadcore22:15:461
4015739991714,2cyclictest664-21dbus-daemon19:45:001
4015739991714,2cyclictest49280-21sh22:00:541
4015739991713,3cyclictest4174478-21ps21:15:481
4015739991710,6cyclictest268-21systemd-journal21:54:281
401573899179,2cyclictest0-21swapper/022:04:280
401573899177,5cyclictest0-21swapper/022:55:500
401573899176,7cyclictest30769-21kthreadcore21:50:440
401573899176,5cyclictest206308-21latency_hist23:50:010
401573899176,5cyclictest0-21swapper/000:00:230
401573899171,5cyclictest491rcuog/221:39:570
4015738991715,1cyclictest0-21swapper/019:15:020
4015738991714,2cyclictest4138881-21timerandwakeup20:45:500
4015738991714,2cyclictest4109149-21cut20:25:030
4015738991714,2cyclictest4072557-21dump-pmu-power19:55:000
4015738991714,2cyclictest147966-21cpuspeed_turbos23:10:410
4015738991714,2cyclictest0-21swapper/022:20:010
4015738991713,3cyclictest136911-21kthreadcore23:00:480
3240591170,2phc2sys0-21swapper/323:10:523
3240591170,2phc2sys0-21swapper/322:31:133
3240591170,2phc2sys0-21swapper/321:29:403
3240591170,1phc2sys0-21swapper/323:35:333
1157598170,3rtkit-daemon13136-21ssh21:37:021
401574299163,6cyclictest0-21swapper/219:35:242
401574299161,7cyclictest0-21swapper/221:20:252
4015742991613,1cyclictest0-21swapper/223:35:492
4015742991613,1cyclictest0-21swapper/223:25:022
4015742991613,1cyclictest0-21swapper/219:55:502
4015742991613,1cyclictest0-21swapper/219:20:472
4015742991613,1cyclictest0-21swapper/200:40:002
4015742991613,1cyclictest0-21swapper/200:19:042
4015742991612,1cyclictest0-21swapper/220:40:272
4015742991611,3cyclictest0-21swapper/222:15:022
401573999167,3cyclictest4193915-21kworker/u16:0+xprtiod22:58:361
401573999166,7cyclictest184275-21kworker/u16:2+xprtiod00:09:181
4015739991614,1cyclictest169463-21grep23:25:011
4015739991613,2cyclictest759-1atopacctd22:00:011
4015739991613,2cyclictest664-21dbus-daemon23:05:011
4015739991613,2cyclictest51774-21cpuspeed22:05:421
4015739991613,2cyclictest4164155-21apt-get21:10:251
4015739991613,2cyclictest4124795-21kthreadcore20:35:471
4015739991613,2cyclictest4108994-21systemd-run20:25:011
4015739991613,2cyclictest4015730-21cyclictest22:50:461
4015739991613,2cyclictest243404-21latency_hist00:15:011
4015739991613,2cyclictest0-21swapper/121:20:251
4015739991613,2cyclictest0-21swapper/120:30:011
4015739991612,3cyclictest63692-21needreboot22:10:491
4015739991612,2cyclictest69250irq/121-eno123:40:031
4015739991611,3cyclictest0-21swapper/123:20:011
4015739991610,1cyclictest69250irq/121-eno122:43:131
401573899168,4cyclictest72301-21kworker/u16:1-events_unbound23:05:540
401573899163,8cyclictest54150-21cut22:05:480
4015738991613,2cyclictest60256-21kthreadcore22:10:460
4015738991613,2cyclictest4157632-21cron21:05:010
4015738991613,2cyclictest4015730-21cyclictest20:35:240
4015738991613,2cyclictest0-21swapper/023:20:020
4015738991612,3cyclictest4082577-21kthreadcore20:00:480
4015738991612,3cyclictest4039299-21kthreadcore19:25:480
4015738991612,3cyclictest4027172-21kthreadcore19:15:480
4015738991612,3cyclictest254156-21kthreadcore00:20:480
4015738991612,3cyclictest246734-21kthreadcore00:15:460
4015738991610,2cyclictest89265-21fschecks_time22:30:420
3240591161,2phc2sys0-21swapper/323:18:543
3240591160,2phc2sys0-21swapper/323:58:573
401574299151,3cyclictest0-21swapper/222:00:022
4015742991513,1cyclictest0-21swapper/221:30:022
4015742991513,1cyclictest0-21swapper/219:15:432
4015742991512,1cyclictest0-21swapper/223:49:352
4015742991512,1cyclictest0-21swapper/223:05:452
4015742991512,1cyclictest0-21swapper/223:01:022
4015742991512,1cyclictest0-21swapper/222:10:012
4015742991512,1cyclictest0-21swapper/221:35:422
4015742991512,1cyclictest0-21swapper/221:10:442
4015742991512,1cyclictest0-21swapper/220:18:152
4015742991512,1cyclictest0-21swapper/220:12:292
4015742991512,1cyclictest0-21swapper/220:01:122
4015742991510,3cyclictest0-21swapper/221:20:022
4015742991510,2cyclictest0-21swapper/222:05:012
401573999159,5cyclictest4015730-21cyclictest23:29:391
401573999157,3cyclictest4163665-21diskmemload21:43:461
401573999155,8cyclictest4149572-21tr20:55:501
401573999153,5cyclictest266478-21ssh00:30:371
401573999152,5cyclictest491rcuog/200:25:271
401573999151,7cyclictest4139458-21awk20:50:011
4015739991512,2cyclictest94663-21sh22:32:421
4015739991512,2cyclictest602-17auditd20:50:581
4015739991512,2cyclictest4072546-21latency_hist19:55:021
4015739991512,2cyclictest4066661-21systemd-run19:50:021
4015739991512,2cyclictest4022616-21kthreadcore19:15:031
4015739991512,2cyclictest177949-21head23:30:411
4015739991511,3cyclictest759-1atopacctd20:00:481
4015739991511,3cyclictest4046918-21kthreadcore19:30:471
4015739991511,3cyclictest1307-21mta-sts-daemon21:30:201
401573899155,3cyclictest0-21swapper/023:28:390
4015738991512,2cyclictest4162645-21missed_timers21:05:490
4015738991512,2cyclictest4143099-21kthreadcore20:50:490
4015738991512,2cyclictest4049298-21gltestperf19:35:430
4015738991512,2cyclictest1307-21mta-sts-daemon23:35:120
4015738991512,2cyclictest1307-21mta-sts-daemon22:48:250
4015738991512,2cyclictest1300-21mta-sts-daemon21:48:280
4015738991512,2cyclictest0-21swapper/019:50:000
4015738991511,3cyclictest4148653-21kthreadcore20:55:490
4015738991511,3cyclictest4091692-21fschecks_time20:10:430
4015738991511,3cyclictest3942188-21kworker/u16:0+nfsiod21:10:580
3240591150,3phc2sys0-21swapper/323:24:403
4015742991412,1cyclictest0-21swapper/222:15:412
4015742991412,1cyclictest0-21swapper/220:05:452
4015742991412,1cyclictest0-21swapper/219:50:442
4015742991411,1cyclictest0-21swapper/223:55:472
4015742991411,1cyclictest0-21swapper/222:40:522
4015742991411,1cyclictest0-21swapper/219:45:502
4015742991411,1cyclictest0-21swapper/200:10:462
401574299140,7cyclictest0-21swapper/222:25:242
4015739991411,2cyclictest4101189-21kthreadcore20:15:471
4015739991411,2cyclictest4024631-21cpuspeed_turbos19:15:431
4015739991411,2cyclictest24165-21kthreadcore21:45:451
4015739991411,2cyclictest222299-21tune2fs00:00:421
4015739991411,2cyclictest1309-21mta-sts-daemon21:04:291
4015739991411,2cyclictest0-21swapper/120:05:431
4015739991411,1cyclictest69250irq/121-eno100:15:411
401573899149,4cyclictest4056513-21kthreadcore19:40:480
4015738991411,2cyclictest4086338-21sed20:05:460
4015738991411,2cyclictest4073787-21irqcore19:55:450
4015738991411,2cyclictest1307-21mta-sts-daemon21:55:100
4015738991411,2cyclictest0-21swapper/022:50:510
3240591140,2phc2sys0-21swapper/323:53:463
3240591140,2phc2sys0-21swapper/323:09:453
3240591140,2phc2sys0-21swapper/321:15:223
3240591140,1phc2sys0-21swapper/320:10:373
3240591140,1phc2sys0-21swapper/319:59:573
401574299139,2cyclictest0-21swapper/220:50:492
401574299131,5cyclictest0-21swapper/219:30:252
4015742991311,1cyclictest0-21swapper/223:30:032
4015742991311,1cyclictest0-21swapper/223:30:012
4015742991310,1cyclictest0-21swapper/223:10:472
4015742991310,1cyclictest0-21swapper/221:10:032
4015742991310,1cyclictest0-21swapper/221:00:462
4015742991310,1cyclictest0-21swapper/220:25:262
4015742991310,1cyclictest0-21swapper/219:40:522
4015742991310,1cyclictest0-21swapper/219:25:422
4015742991310,1cyclictest0-21swapper/200:30:042
4015739991310,2cyclictest759-1atopacctd19:35:461
4015739991310,2cyclictest4115252-21/usr/sbin/munin20:30:481
4015739991310,2cyclictest4091407-21cstates20:10:421
4015739991310,2cyclictest4015878-21latency_hist19:10:031
401573899139,3cyclictest4116470-21irqrtprio20:30:460
3240591131,2phc2sys0-21swapper/319:45:253
3240591130,2phc2sys0-21swapper/322:26:523
3240591130,2phc2sys0-21swapper/321:56:583
3240591130,2phc2sys0-21swapper/321:45:073
3240591130,2phc2sys0-21swapper/321:12:453
3240591130,1phc2sys0-21swapper/322:10:053
3240591130,1phc2sys0-21swapper/319:24:573
41842712120,2sleep30-21swapper/321:20:533
41188552120,2sleep30-21swapper/320:30:483
401574299129,2cyclictest0-21swapper/220:30:472
401574299129,1cyclictest0-21swapper/200:05:432
401574299128,2cyclictest0-21swapper/220:35:512
401574299125,3cyclictest0-21swapper/220:20:222
401574299121,7cyclictest0-21swapper/222:40:022
401574299121,7cyclictest0-21swapper/222:40:022
4015742991210,1cyclictest0-21swapper/223:50:402
4015742991210,1cyclictest0-21swapper/220:45:482
3240591121,3phc2sys0-21swapper/322:00:263
3240591120,3phc2sys0-21swapper/323:34:433
3240591120,2phc2sys0-21swapper/322:09:493
3240591120,2phc2sys0-21swapper/321:41:303
3240591120,2phc2sys0-21swapper/300:36:343
3240591120,1phc2sys0-21swapper/323:47:023
3240591120,1phc2sys0-21swapper/300:20:183
401574299118,1cyclictest0-21swapper/222:20:502
401574299110,7cyclictest0-21swapper/220:55:272
401573899114,5cyclictest714-21gdbus19:10:020
3240591111,2phc2sys0-21swapper/320:00:523
3240591110,4phc2sys0-21swapper/300:30:233
3240591110,2phc2sys0-21swapper/322:52:533
3240591110,2phc2sys0-21swapper/322:47:043
3240591110,2phc2sys0-21swapper/321:31:043
3240591110,1phc2sys0-21swapper/323:41:513
3240591105,2phc2sys0-21swapper/320:55:463
3240591105,2phc2sys0-21swapper/300:10:453
3240591101,2phc2sys0-21swapper/323:25:353
3240591101,2phc2sys0-21swapper/321:35:253
3240591101,2phc2sys0-21swapper/319:35:473
3240591100,2phc2sys0-21swapper/323:00:473
3240591100,2phc2sys0-21swapper/322:44:393
3240591100,2phc2sys0-21swapper/322:38:383
3240591100,2phc2sys0-21swapper/322:38:383
3240591100,2phc2sys0-21swapper/322:15:303
3240591100,2phc2sys0-21swapper/300:07:163
3240591100,2phc2sys0-21swapper/300:02:433
3240591100,1phc2sys0-21swapper/319:50:213
3240591100,1phc2sys0-21swapper/319:32:433
3240591100,1phc2sys0-21swapper/319:26:223
324059191,3phc2sys0-21swapper/320:35:243
324059191,3phc2sys0-21swapper/320:30:013
324059191,3phc2sys0-21swapper/320:20:223
324059191,3phc2sys0-21swapper/320:05:243
324059191,3phc2sys0-21swapper/319:05:253
324059191,2phc2sys0-21swapper/320:50:453
324059191,2phc2sys0-21swapper/300:26:113
324059190,2phc2sys0-21swapper/322:55:503
324059190,2phc2sys0-21swapper/322:20:553
324059190,2phc2sys0-21swapper/321:05:433
324059190,2phc2sys0-21swapper/320:15:503
324059190,2phc2sys0-21swapper/319:15:043
324059190,2phc2sys0-21swapper/300:15:053
40157429981,3cyclictest0-21swapper/219:10:022
324059181,2phc2sys0-21swapper/319:10:253
324059181,1phc2sys0-21swapper/321:00:063
324059180,2phc2sys0-21swapper/319:40:123
324059180,1phc2sys0-21swapper/320:45:403
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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