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2026-04-13 - 08:52
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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 Mon Apr 13, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
411635521480,2sleep30-21swapper/300:25:003
380096921030,1sleep10-21swapper/120:51:021
36897532860,1sleep20-21swapper/219:21:022
40662832800,2sleep30-21swapper/323:51:013
37947592310,2sleep03794765-21kthreadcore20:46:000
3669338993110,10cyclictest0-21swapper/023:59:590
3669339993027,2cyclictest4131389-21grep00:35:011
3669339992619,2cyclictest134050irq/121-eno100:00:001
3669338992313,6cyclictest4041056-21systemd23:35:010
3669338992313,6cyclictest0-21swapper/022:40:000
3669343992219,1cyclictest0-21swapper/222:50:012
3669343992219,1cyclictest0-21swapper/200:35:022
3669338992219,2cyclictest4086252-21turbostat.cron00:05:000
3669338992212,5cyclictest0-21swapper/023:10:010
3669338992211,6cyclictest0-21swapper/023:40:540
3669343992118,1cyclictest0-21swapper/219:40:002
3669339992118,2cyclictest1290-21dbus-daemon23:25:001
383433398200,3rtkit-daemon3851704-21mta-sts-daemon20:19:110
37362122200,2sleep30-21swapper/320:00:593
3669343992017,1cyclictest0-21swapper/220:20:002
3669339992018,1cyclictest3883095-21apt-key21:50:001
3669339992017,2cyclictest3943352-21dump-pmu-power22:30:001
3669339992017,2cyclictest3753503-21apt-key20:15:001
3669339992017,2cyclictest1-21systemd22:15:001
3669339992016,3cyclictest3880722-21gmain20:05:001
3669339992016,3cyclictest1290-21dbus-daemon19:15:001
366933899209,6cyclictest0-21swapper/023:16:020
366933899209,6cyclictest0-21swapper/000:11:050
366933899208,7cyclictest0-21swapper/023:55:020
366933899206,6cyclictest4109057-21latency_hist00:20:020
2649091201,2phc2sys0-21swapper/323:32:393
366934399191,8cyclictest0-21swapper/222:30:012
3669343991916,1cyclictest0-21swapper/221:41:012
3669343991916,1cyclictest0-21swapper/220:25:002
366934399191,10cyclictest0-21swapper/223:35:532
3669339991916,2cyclictest4138874-21cron00:40:001
3669339991916,2cyclictest3958322-21ssh22:40:001
3669339991913,2cyclictest134050irq/121-eno122:20:551
366933999191,15cyclictest3766416-21munin-run20:25:011
3669338991916,2cyclictest3830319-21latency_hist21:15:010
3669338991916,2cyclictest3669328-21cyclictest19:45:000
3669338991915,2cyclictest3778890-21systemd-run20:35:010
3669338991912,6cyclictest0-21swapper/022:05:540
3669338991911,7cyclictest4033388-21latency_hist23:30:010
3669338991911,7cyclictest0-21swapper/021:21:020
3669338991911,4cyclictest3827634-1atopacctd00:36:060
3669343991815,1cyclictest0-21swapper/220:55:022
3669343991815,1cyclictest0-21swapper/200:17:202
366933999188,5cyclictest36-21ksoftirqd/121:40:011
3669339991815,2cyclictest4018497-21sh23:20:001
3669339991815,2cyclictest4004944-21irqcore23:10:581
3669339991815,2cyclictest3830252-21debian-sa121:15:001
3669339991814,3cyclictest3851703-21mta-sts-daemon23:54:171
3669339991810,3cyclictest3849203-21kthreadcore21:26:011
366933899188,6cyclictest3922763-21kthreadcore22:16:000
3669338991815,2cyclictest4131487-21latency_hist00:35:010
3669338991815,2cyclictest3804020-21sh20:55:010
3669338991815,2cyclictest3753771-21gmain20:20:060
3669338991815,2cyclictest3747188-21dump-pmu-power20:10:000
3669338991815,2cyclictest3676143-21/usr/sbin/munin19:15:010
3669338991815,2cyclictest1290-21dbus-daemon21:40:020
3669338991812,5cyclictest3851705-21mta-sts-daemon23:47:480
3669338991810,4cyclictest3669328-21cyclictest22:31:460
366933899180,17cyclictest3716300-21/usr/sbin/munin19:46:030
2649091180,2phc2sys0-21swapper/322:20:043
366934399171,8cyclictest0-21swapper/200:05:532
3669343991715,1cyclictest0-21swapper/222:40:012
3669343991715,1cyclictest0-21swapper/200:25:012
3669343991714,1cyclictest0-21swapper/223:30:542
3669343991714,1cyclictest0-21swapper/223:15:592
3669343991714,1cyclictest0-21swapper/222:55:012
3669343991714,1cyclictest0-21swapper/222:25:012
3669343991714,1cyclictest0-21swapper/221:26:002
3669343991714,1cyclictest0-21swapper/221:15:012
3669339991714,2cyclictest4114683-21mailstats00:21:061
3669339991714,2cyclictest3891014-21systemctl21:55:011
3669339991714,2cyclictest3851705-21mta-sts-daemon00:25:161
3669339991714,2cyclictest3841370-21avahi-daemon00:20:011
366933899179,7cyclictest0-21swapper/022:55:520
366933899178,5cyclictest0-21swapper/000:21:070
366933899176,6cyclictest0-21swapper/021:50:540
3669338991715,1cyclictest3669328-21cyclictest00:30:010
3669338991714,2cyclictest3837838-21latency_hist21:20:010
3669338991714,2cyclictest3740936-21ls20:05:000
3669338991714,2cyclictest3684545-21sh19:20:010
3669338991714,2cyclictest0-21swapper/023:40:010
3669338991711,5cyclictest4019290-21cpuspeed_turbos23:20:550
3669338991710,4cyclictest3967427-21irqcore22:45:580
2649091170,3phc2sys0-21swapper/321:22:113
2649091170,3phc2sys0-21swapper/320:31:013
366934399169,3cyclictest0-21swapper/200:15:022
366934399161,8cyclictest0-21swapper/222:10:012
366934399161,7cyclictest0-21swapper/220:35:532
3669343991614,1cyclictest0-21swapper/219:30:522
3669343991614,1cyclictest0-21swapper/219:30:002
3669343991613,1cyclictest0-21swapper/223:15:002
3669343991613,1cyclictest0-21swapper/222:43:392
3669343991613,1cyclictest0-21swapper/221:16:242
3669343991613,1cyclictest0-21swapper/221:10:002
3669343991613,1cyclictest0-21swapper/221:01:032
3669343991613,1cyclictest0-21swapper/220:40:562
3669343991613,1cyclictest0-21swapper/219:50:012
3669343991613,1cyclictest0-21swapper/200:25:572
3669343991612,2cyclictest0-21swapper/220:45:552
366933999169,1cyclictest501rcuop/223:05:111
366933999167,4cyclictest0-21swapper/122:40:551
366933999165,5cyclictest3975802-21kthreadcore22:51:011
3669339991613,2cyclictest4084519-21sh00:01:041
3669339991613,2cyclictest4056819-21tr23:45:541
3669339991613,2cyclictest4033488-21systemd-run23:30:001
3669339991613,2cyclictest3717429-21grep19:46:011
3669339991613,2cyclictest3669328-21cyclictest20:30:011
3669339991613,2cyclictest1-21systemd23:44:591
366933899168,4cyclictest3994235-21grep23:01:050
3669338991613,2cyclictest4004720-21gltestperf23:10:570
3669338991613,2cyclictest3846578-21gltestperf21:25:570
3669338991613,2cyclictest3709164-21sshd19:37:250
3669338991613,2cyclictest1326-21systemd-logind22:55:010
3669338991613,2cyclictest1-21systemd20:30:010
3669338991612,1cyclictest3851705-21mta-sts-daemon19:25:570
3669338991611,4cyclictest3834328-21sendmail-mta19:22:030
3669338991611,4cyclictest3675643-21munin-node22:20:340
2649091160,3phc2sys0-21swapper/323:46:003
2649091160,3phc2sys0-21swapper/319:54:553
2649091160,2phc2sys0-21swapper/323:40:013
2649091160,2phc2sys0-21swapper/323:04:523
2649091160,2phc2sys0-21swapper/321:50:023
3669343991513,1cyclictest0-21swapper/223:46:592
3669343991513,1cyclictest0-21swapper/223:45:012
3669343991513,1cyclictest0-21swapper/220:05:562
3669343991513,1cyclictest0-21swapper/220:05:012
3669343991513,1cyclictest0-21swapper/200:39:072
3669343991512,1cyclictest0-21swapper/223:25:542
3669343991512,1cyclictest0-21swapper/223:05:572
3669343991512,1cyclictest0-21swapper/222:05:012
3669343991512,1cyclictest0-21swapper/221:56:052
3669343991512,1cyclictest0-21swapper/221:45:532
3669343991512,1cyclictest0-21swapper/221:30:562
3669343991512,1cyclictest0-21swapper/220:15:012
3669343991512,1cyclictest0-21swapper/219:55:012
3669343991512,1cyclictest0-21swapper/219:10:572
3669343991512,1cyclictest0-21swapper/200:01:032
3669343991511,2cyclictest0-21swapper/221:51:022
3669343991511,2cyclictest0-21swapper/221:20:392
366933999159,5cyclictest3851702-21mta-sts-daemon19:57:121
366933999159,2cyclictest383433398rtkit-daemon19:15:121
366933999159,2cyclictest17350irq/127-ahci[0000:00:17.0]20:06:011
366933999156,3cyclictest501rcuop/222:46:201
366933999156,3cyclictest501rcuop/222:30:411
366933999156,3cyclictest501rcuop/200:14:261
366933999155,3cyclictest501rcuop/222:18:221
366933999153,8cyclictest134050irq/121-eno121:24:041
366933999153,5cyclictest0-21swapper/100:05:021
366933999152,4cyclictest3778941-21kworker/u16:3+xprtiod22:55:551
3669339991513,1cyclictest3851704-21mta-sts-daemon21:01:041
3669339991513,1cyclictest3851703-21mta-sts-daemon20:15:551
3669339991513,1cyclictest3851702-21mta-sts-daemon19:35:571
3669339991512,2cyclictest4048638-21latency_hist23:40:011
3669339991512,2cyclictest3824565-21in:imuxsock19:45:011
3669339991512,2cyclictest3791726-21aten_repower_vo20:45:541
3669339991511,3cyclictest3907744-21irqrtprio22:05:591
3669339991510,1cyclictest501rcuop/221:55:541
366933899159,5cyclictest3851702-21mta-sts-daemon21:42:390
366933899158,6cyclictest3903751-21kthreadcore22:01:010
3669338991513,1cyclictest3812852-21kthreadcore21:01:000
3669338991512,2cyclictest3840882-21snmpd22:27:480
3669338991512,2cyclictest3748939-21kthreadcore20:10:590
3669338991512,2cyclictest3698595-21sed19:30:590
3669338991512,2cyclictest1296-21polkitd21:46:050
3669338991512,2cyclictest0-21swapper/000:06:050
2649091150,2phc2sys0-21swapper/321:28:323
366934399141,8cyclictest0-21swapper/223:55:532
3669343991412,1cyclictest0-21swapper/223:20:542
3669343991412,1cyclictest0-21swapper/222:12:542
3669343991411,1cyclictest0-21swapper/222:55:582
3669343991411,1cyclictest0-21swapper/222:15:542
3669343991411,1cyclictest0-21swapper/221:36:272
366933999147,3cyclictest3898708-21ssh22:00:121
366933999147,3cyclictest0-21swapper/121:05:591
366933999146,4cyclictest0-21swapper/121:16:081
3669339991411,2cyclictest4035306-21kthreadcore23:30:591
3669339991411,2cyclictest3851875-21systemd-journal20:34:451
3669339991411,2cyclictest3851703-21mta-sts-daemon23:00:541
3669339991411,2cyclictest3851703-21mta-sts-daemon21:30:541
3669339991411,2cyclictest3698590-21kthreadcore19:31:001
3669339991410,3cyclictest3785154-21latency_hist20:40:011
366933899146,2cyclictest3791211-21turbostat20:45:000
3669338991411,2cyclictest3851704-21mta-sts-daemon21:59:460
3669338991411,2cyclictest3822770-21latency_hist21:10:010
3669338991411,2cyclictest3805061-21cut20:55:570
3669338991411,2cyclictest3723862-21kthreadcore19:51:010
3669338991410,3cyclictest3778941-21kworker/u16:3+nfsiod22:11:590
366933899140,9cyclictest3855927-21kthreadcore21:31:000
2649091141,4phc2sys0-21swapper/322:45:443
2649091140,2phc2sys0-21swapper/323:59:553
2649091140,2phc2sys0-21swapper/322:43:033
2649091140,2phc2sys0-21swapper/321:41:513
2649091140,2phc2sys0-21swapper/320:40:523
2649091140,1phc2sys0-21swapper/320:48:213
3669343991311,1cyclictest0-21swapper/223:54:432
3669343991311,1cyclictest0-21swapper/222:30:572
3669343991311,1cyclictest0-21swapper/220:55:592
3669343991311,1cyclictest0-21swapper/219:15:032
3669343991310,1cyclictest0-21swapper/223:00:592
3669343991310,1cyclictest0-21swapper/219:55:572
366933999137,5cyclictest3851702-21mta-sts-daemon19:22:291
3669339991310,2cyclictest3804904-21fschecks_count20:55:571
3669339991310,2cyclictest3790317-21phc2sys-jitter20:41:021
3669339991310,2cyclictest3692288-21irqrtprio19:25:581
366933999130,3cyclictest0-21swapper/121:40:031
366933899139,3cyclictest3851702-21mta-sts-daemon20:35:570
366933899138,3cyclictest0-21swapper/019:10:010
3669338991310,2cyclictest3960272-21kthreadcore22:41:000
3669338991310,2cyclictest3730103-21tr19:55:590
2649091134,2phc2sys0-21swapper/323:15:443
2649091131,2phc2sys0-21swapper/320:25:533
2649091130,2phc2sys0-21swapper/322:38:123
2649091130,2phc2sys0-21swapper/322:26:383
2649091130,2phc2sys0-21swapper/321:38:553
38303902120,2sleep30-21swapper/321:15:013
366934399129,1cyclictest0-21swapper/220:31:022
366934399129,1cyclictest0-21swapper/220:25:582
366934399121,7cyclictest0-21swapper/219:10:012
366934399121,5cyclictest0-21swapper/219:40:522
366933999129,2cyclictest3669499-21latency_hist19:10:021
366933999128,3cyclictest134050irq/121-eno119:50:551
2649091121,2phc2sys0-21swapper/300:40:013
2649091120,5phc2sys0-21swapper/319:40:523
2649091120,2phc2sys0-21swapper/322:58:353
2649091120,2phc2sys0-21swapper/322:52:403
2649091120,2phc2sys0-21swapper/322:05:293
2649091120,2phc2sys0-21swapper/321:50:553
2649091120,2phc2sys0-21swapper/319:06:143
2649091120,2phc2sys0-21swapper/300:30:483
2649091120,2phc2sys0-21swapper/300:00:413
2649091120,1phc2sys0-21swapper/322:02:093
2649091120,1phc2sys0-21swapper/319:20:213
2649091120,1phc2sys0-21swapper/300:11:513
2649091112,2phc2sys0-21swapper/321:56:243
2649091110,2phc2sys0-21swapper/321:02:033
2649091110,2phc2sys0-21swapper/320:06:023
2649091110,2phc2sys0-21swapper/319:45:453
2649091110,1phc2sys0-21swapper/320:12:433
2649091110,1phc2sys0-21swapper/319:31:433
2649091110,1phc2sys0-21swapper/319:11:163
2649091101,2phc2sys0-21swapper/322:16:003
2649091101,2phc2sys0-21swapper/321:35:023
2649091101,2phc2sys0-21swapper/319:55:563
2649091101,2phc2sys0-21swapper/300:05:263
2649091100,3phc2sys0-21swapper/319:20:013
2649091100,2phc2sys0-21swapper/323:41:013
2649091100,2phc2sys0-21swapper/323:26:503
2649091100,2phc2sys0-21swapper/323:20:413
2649091100,2phc2sys0-21swapper/323:12:193
2649091100,2phc2sys0-21swapper/322:31:553
2649091100,2phc2sys0-21swapper/322:14:113
2649091100,2phc2sys0-21swapper/321:15:303
2649091100,2phc2sys0-21swapper/320:55:593
2649091100,2phc2sys0-21swapper/319:36:003
2649091100,2phc2sys0-21swapper/300:15:073
2649091100,1phc2sys0-21swapper/321:05:193
264909191,2phc2sys0-21swapper/320:51:023
264909191,2phc2sys0-21swapper/320:15:553
264909190,3phc2sys0-21swapper/300:25:533
264909190,2phc2sys0-21swapper/323:05:303
264909190,2phc2sys0-21swapper/320:38:033
264909190,2phc2sys0-21swapper/320:21:003
264909180,2phc2sys0-21swapper/319:25:543
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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