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2025-12-29 - 08:26
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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 Mon Dec 29, 2025 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
364929821000,2sleep30-21swapper/320:33:233
35602942340,2sleep20-21swapper/219:20:002
3545908992522,2cyclictest70-21kcompactd022:30:011
36216132240,1sleep10-21swapper/120:13:171
3545907992415,5cyclictest3814731-21if_err_enp1s022:18:220
3545908992320,2cyclictest3820607-21grep22:20:021
3545908992118,2cyclictest3865306-21ssh22:45:001
3545908992118,2cyclictest1290-21dbus-daemon00:30:021
354590799212,5cyclictest4001050-40updatedb.mlocat00:00:010
3545907992118,2cyclictest3802295-21grep22:10:000
3545907992114,6cyclictest0-21swapper/022:53:220
354590799211,16cyclictest0-21swapper/000:01:180
2649091210,2phc2sys0-21swapper/322:58:483
3545908992018,1cyclictest3633104-21awk20:20:011
3545908992017,2cyclictest3729968-21/usr/sbin/munin21:30:011
3545908992017,2cyclictest3669629-21latency_hist20:50:001
3545908992017,2cyclictest3552209-21ls19:15:011
3545908992012,3cyclictest3760919-21irqrtprio21:48:251
354590799207,8cyclictest3861597-21kthreadcore22:43:230
3545907992017,2cyclictest1290-21dbus-daemon00:25:010
354590999192,3cyclictest0-21swapper/222:10:022
3545909991917,1cyclictest0-21swapper/223:00:022
3545908991916,2cyclictest3937678-21apt-config23:25:001
3545908991916,2cyclictest3919573-21cron23:15:011
3545908991916,2cyclictest3545905-21cyclictest19:35:021
3545908991915,3cyclictest1296-21polkitd21:20:011
3545908991913,2cyclictest134050irq/121-eno121:58:241
3545908991913,2cyclictest134050irq/121-eno121:58:241
3545908991913,2cyclictest134050irq/121-eno100:40:011
354590799199,5cyclictest0-21swapper/022:28:170
3545907991912,6cyclictest3735202-21kthreadcore21:33:240
3545907991912,6cyclictest3702788-21latency_hist21:15:000
3545907991912,6cyclictest3633823-21aten2.4-expect20:23:200
3545907991911,4cyclictest3922070-21/usr/sbin/munin23:18:220
3545909991816,1cyclictest0-21swapper/219:50:022
3545909991816,1cyclictest0-21swapper/219:50:022
3545909991815,1cyclictest0-21swapper/223:35:002
3545908991815,2cyclictest3874456-21ssh22:50:011
3545908991815,2cyclictest1-21systemd23:05:021
3545908991815,2cyclictest0-21swapper/122:40:001
3545908991812,5cyclictest3652406-21sort20:38:211
3545908991810,3cyclictest3809127-21kthreadcore22:13:261
354590799189,5cyclictest0-21swapper/023:35:020
3545907991815,2cyclictest3560362-21systemd-run19:20:010
3545907991811,6cyclictest0-21swapper/000:10:010
3545907991810,7cyclictest0-21swapper/000:30:010
3545907991810,4cyclictest0-21swapper/023:15:010
3545907991810,4cyclictest0-21swapper/000:15:010
2649091180,2phc2sys0-21swapper/300:31:553
3545909991714,1cyclictest0-21swapper/223:40:002
3545909991714,1cyclictest0-21swapper/223:30:002
3545909991714,1cyclictest0-21swapper/222:53:262
3545909991714,1cyclictest0-21swapper/222:38:232
3545909991714,1cyclictest0-21swapper/221:08:292
3545909991714,1cyclictest0-21swapper/220:15:012
3545909991714,1cyclictest0-21swapper/200:00:022
354590899179,3cyclictest0-21swapper/100:08:161
3545908991715,1cyclictest29021-21rtkit-daemon23:53:411
3545908991714,2cyclictest3545905-21cyclictest21:15:011
3545908991714,2cyclictest0-21swapper/123:28:161
3545908991713,3cyclictest3791540-21head22:03:261
3545908991711,2cyclictest134050irq/121-eno121:54:461
354590799178,2cyclictest0-21swapper/022:38:180
3545907991714,2cyclictest3872582-21missed_timers22:48:250
3545907991714,2cyclictest3663374-21apt-key20:45:000
3545907991714,2cyclictest3614827-21systemd-run20:05:010
3545907991714,2cyclictest1428-21gdbus23:38:540
3545907991714,2cyclictest1-21systemd23:50:010
3545907991714,2cyclictest1-21systemd20:10:010
3545907991713,3cyclictest3765263-21kworker/u16:3+nfsiod22:00:580
3545907991712,4cyclictest3681926-21kworker/u16:1-events_unbound23:52:090
354590799171,15cyclictest0-21swapper/023:05:280
3545907991710,6cyclictest3824542-21kthreadcore22:23:220
3545907991710,6cyclictest3762466-21kthreadcore21:48:260
3545907991710,6cyclictest0-21swapper/021:45:010
2649091170,4phc2sys0-21swapper/300:18:563
2649091170,3phc2sys0-21swapper/323:44:343
2649091170,2phc2sys0-21swapper/323:45:133
2649091170,2phc2sys0-21swapper/323:22:053
2649091170,2phc2sys0-21swapper/322:25:573
3545909991614,1cyclictest0-21swapper/200:23:252
3545909991613,1cyclictest0-21swapper/223:53:202
3545909991613,1cyclictest0-21swapper/222:35:012
3545909991613,1cyclictest0-21swapper/222:18:222
3545909991613,1cyclictest0-21swapper/221:35:012
3545909991613,1cyclictest0-21swapper/220:50:022
3545909991613,1cyclictest0-21swapper/220:45:002
3545909991613,1cyclictest0-21swapper/200:35:012
3545909991612,2cyclictest0-21swapper/221:00:012
354590999160,13cyclictest0-21swapper/200:02:002
354590899169,1cyclictest601rcuop/323:47:411
354590899168,3cyclictest0-21swapper/123:45:011
354590899168,1cyclictest601rcuop/300:13:181
354590899168,1cyclictest191rcu_preempt23:18:071
354590899167,3cyclictest501rcuop/223:57:551
354590899165,5cyclictest0-21swapper/121:43:151
3545908991613,2cyclictest4039922-21cpu00:23:191
3545908991613,2cyclictest3963904-21/usr/sbin/munin23:38:291
3545908991613,2cyclictest3585290-21cpu19:43:201
3545908991613,2cyclictest1290-21dbus-daemon20:45:011
3545908991612,3cyclictest3909156-21mailstats23:08:281
3545908991612,3cyclictest3718650-21kthreadcore21:23:241
354590799168,7cyclictest0-21swapper/022:13:190
354590799168,2cyclictest0-21swapper/023:43:250
354590799166,5cyclictest0-21swapper/023:23:280
354590799166,5cyclictest0-21swapper/021:58:160
354590799166,5cyclictest0-21swapper/021:58:160
354590799166,1cyclictest134050irq/121-eno122:57:520
3545907991613,2cyclictest3644681-21mailstats20:28:270
3545907991613,2cyclictest3587871-21kthreadcore19:43:260
3545907991613,2cyclictest3552493-21latency19:15:020
3545907991613,2cyclictest29021-21rtkit-daemon19:21:230
3545907991612,3cyclictest4056282-21kworker/u16:2+nfsiod00:32:240
2902298160,2rtkit-daemon0-21swapper/122:51:341
2649091167,2phc2sys0-21swapper/323:01:373
2649091160,2phc2sys0-21swapper/300:12:033
3545909991513,1cyclictest0-21swapper/223:43:162
3545909991512,1cyclictest0-21swapper/223:25:002
3545909991512,1cyclictest0-21swapper/222:13:242
3545909991512,1cyclictest0-21swapper/221:43:192
3545909991512,1cyclictest0-21swapper/221:38:272
3545909991512,1cyclictest0-21swapper/220:30:012
3545909991512,1cyclictest0-21swapper/219:58:232
3545909991512,1cyclictest0-21swapper/219:15:012
3545909991512,1cyclictest0-21swapper/200:38:212
3545909991512,1cyclictest0-21swapper/200:15:012
3545909991512,1cyclictest0-21swapper/200:08:242
3545909991511,2cyclictest0-21swapper/221:23:172
354590899159,2cyclictest134050irq/121-eno123:33:271
354590899158,1cyclictest601rcuop/321:37:271
354590899156,3cyclictest501rcuop/222:30:341
354590899156,3cyclictest501rcuop/219:45:261
354590899156,3cyclictest501rcuop/219:45:261
354590899156,2cyclictest501rcuop/222:55:541
3545908991512,2cyclictest3672946-21kthreadcore20:53:221
3545908991512,2cyclictest3553278-21kthreadcore19:15:021
3545908991512,2cyclictest3545905-21cyclictest20:33:191
3545908991512,2cyclictest29021-21rtkit-daemon22:25:021
3545908991512,2cyclictest257-21systemd-journal00:16:371
3545908991512,2cyclictest1326-21systemd-logind20:30:001
3545908991512,2cyclictest1326-21systemd-logind19:10:021
3545908991511,3cyclictest3681926-21kworker/u16:1+nfsiod21:32:481
3545908991511,1cyclictest3766181-21kworker/1:1+events_freezable22:05:221
354590799158,3cyclictest3693804-21diskmemload23:03:240
3545907991513,1cyclictest3590829-21kworker/u16:3-rpciod21:18:250
3545907991512,2cyclictest3847548-21sh22:35:020
3545907991512,2cyclictest0-21swapper/021:10:010
3545907991512,2cyclictest0-21swapper/019:50:000
3545907991512,2cyclictest0-21swapper/019:50:000
3545907991511,3cyclictest3771432-21kthreadcore21:53:250
3545907991511,3cyclictest3667763-21kthreadcore20:48:250
354590799150,10cyclictest3721616-21sshd21:25:430
2902298150,3rtkit-daemon1288-1atopacctd19:38:181
2649091150,3phc2sys0-21swapper/323:11:473
2649091150,2phc2sys0-21swapper/322:08:233
2649091150,2phc2sys0-21swapper/321:58:393
2649091150,2phc2sys0-21swapper/321:58:393
354590999149,4cyclictest0-21swapper/222:43:282
354590999141,6cyclictest0-21swapper/220:20:022
354590999141,5cyclictest0-21swapper/222:50:022
3545909991412,1cyclictest0-21swapper/220:55:002
3545909991412,1cyclictest0-21swapper/219:53:202
3545909991411,1cyclictest0-21swapper/223:48:232
3545909991411,1cyclictest0-21swapper/222:03:292
3545909991411,1cyclictest0-21swapper/222:00:002
3545909991411,1cyclictest0-21swapper/222:00:002
3545909991411,1cyclictest0-21swapper/221:50:012
3545909991411,1cyclictest0-21swapper/221:28:252
3545909991411,1cyclictest0-21swapper/221:15:002
3545909991411,1cyclictest0-21swapper/220:10:012
3545909991411,1cyclictest0-21swapper/219:43:222
3545909991410,2cyclictest0-21swapper/222:23:232
354590999140,1cyclictest0-21swapper/221:52:322
354590899148,5cyclictest3901766-21kworker/u16:4-events_unbound00:30:371
354590899148,5cyclictest3688972-21fschecks_time21:08:231
354590899146,3cyclictest501rcuop/219:27:191
354590899145,3cyclictest501rcuop/220:24:371
354590899144,3cyclictest501rcuop/220:01:211
3545908991411,2cyclictest3684115-21kthreadcore21:03:251
3545908991411,2cyclictest3616508-21irqrtprio20:08:221
354590799147,6cyclictest0-21swapper/000:37:350
354590799147,5cyclictest3602605-21sshd19:54:360
354590799146,4cyclictest0-21swapper/000:18:220
354590799146,2cyclictest0-21swapper/021:23:270
354590799145,5cyclictest0-21swapper/021:37:120
354590799145,5cyclictest0-21swapper/020:36:330
354590799145,5cyclictest0-21swapper/019:33:130
354590799144,6cyclictest0-21swapper/020:30:300
354590799142,7cyclictest3567005-21aten2.4-expect19:28:160
3545907991411,2cyclictest3943610-21kthreadcore23:28:240
3545907991411,2cyclictest3622355-21head20:13:210
3545907991411,2cyclictest3545905-21cyclictest20:53:260
3545907991411,2cyclictest3545905-21cyclictest19:58:240
3545907991410,3cyclictest3676556-21cpuspeed_turbos20:58:190
354590799140,9cyclictest3684028-21cut21:03:250
2649091142,2phc2sys0-21swapper/300:24:093
2649091141,6phc2sys0-21swapper/323:38:163
2649091140,2phc2sys0-21swapper/322:49:143
2649091140,2phc2sys0-21swapper/321:04:563
2649091140,2phc2sys0-21swapper/300:03:193
354590999139,2cyclictest0-21swapper/222:28:192
354590999139,2cyclictest0-21swapper/219:33:232
354590999137,3cyclictest0-21swapper/221:03:182
354590999131,4cyclictest0-21swapper/219:10:022
3545909991311,1cyclictest0-21swapper/223:15:442
3545909991310,1cyclictest0-21swapper/223:12:462
3545909991310,1cyclictest0-21swapper/223:05:562
3545909991310,1cyclictest0-21swapper/221:17:332
3545909991310,1cyclictest0-21swapper/220:38:242
3545909991310,1cyclictest0-21swapper/220:03:202
3545909991310,1cyclictest0-21swapper/219:40:002
3545909991310,1cyclictest0-21swapper/219:28:242
3545909991310,1cyclictest0-21swapper/219:23:272
3545909991310,1cyclictest0-21swapper/200:18:232
354590999130,1cyclictest0-21swapper/223:00:492
354590899136,1cyclictest601rcuop/300:03:201
354590899135,3cyclictest501rcuop/219:55:161
354590899134,3cyclictest501rcuop/219:50:111
354590899134,3cyclictest501rcuop/219:21:141
3545908991310,2cyclictest3678991-21kthreadcore20:58:251
354590799135,2cyclictest3584542-21munin-run19:40:000
2649091131,1phc2sys0-21swapper/321:17:583
2649091130,2phc2sys0-21swapper/322:39:253
2649091130,2phc2sys0-21swapper/319:38:183
2649091130,1phc2sys0-21swapper/322:33:323
36060232120,2sleep30-21swapper/319:58:253
354590999129,1cyclictest0-21swapper/220:23:262
354590999121,7cyclictest0-21swapper/200:25:252
3545909991210,1cyclictest0-21swapper/220:33:242
354590799125,2cyclictest3628198-21df_inode20:18:210
2649091122,2phc2sys0-21swapper/321:53:243
2649091121,2phc2sys0-21swapper/323:07:583
2649091120,2phc2sys0-21swapper/322:16:363
2649091120,2phc2sys0-21swapper/321:45:163
2649091120,2phc2sys0-21swapper/319:23:153
2649091120,2phc2sys0-21swapper/300:26:463
2649091120,1phc2sys0-21swapper/322:44:293
2649091120,1phc2sys0-21swapper/321:28:433
354590799111,6cyclictest3546046-21cat19:10:020
2649091112,2phc2sys0-21swapper/300:06:503
2649091111,4phc2sys0-21swapper/300:38:193
2649091111,2phc2sys0-21swapper/321:08:273
2649091110,2phc2sys0-21swapper/323:27:473
2649091110,2phc2sys0-21swapper/322:03:183
2649091110,2phc2sys0-21swapper/319:48:243
2649091110,2phc2sys0-21swapper/319:48:243
2649091110,1phc2sys0-21swapper/319:29:373
2649091110,1phc2sys0-21swapper/319:06:363
2649091104,1phc2sys0-21swapper/320:05:433
2649091101,2phc2sys0-21swapper/323:33:163
2649091101,2phc2sys0-21swapper/322:22:253
2649091101,2phc2sys0-21swapper/322:10:393
2649091101,2phc2sys0-21swapper/321:40:053
2649091101,2phc2sys0-21swapper/321:11:123
2649091101,2phc2sys0-21swapper/319:53:293
2649091100,3phc2sys0-21swapper/323:55:563
2649091100,2phc2sys0-21swapper/323:17:483
2649091100,2phc2sys0-21swapper/322:50:593
2649091100,2phc2sys0-21swapper/321:30:443
2649091100,2phc2sys0-21swapper/321:22:143
2649091100,2phc2sys0-21swapper/321:00:023
2649091100,2phc2sys0-21swapper/320:03:433
2649091100,2phc2sys0-21swapper/319:35:023
2649091100,1phc2sys0-21swapper/323:50:033
2649091100,1phc2sys0-21swapper/320:54:453
2649091100,1phc2sys0-21swapper/320:46:193
2649091100,1phc2sys0-21swapper/320:25:593
264909191,2phc2sys0-21swapper/320:35:203
264909190,2phc2sys0-21swapper/321:35:163
264909190,2phc2sys0-21swapper/320:23:183
264909190,2phc2sys0-21swapper/320:18:213
264909190,2phc2sys0-21swapper/320:10:123
264909190,2phc2sys0-21swapper/319:42:233
264909190,2phc2sys0-21swapper/319:12:503
264909190,1phc2sys0-21swapper/319:16:423
264909180,1phc2sys0-21swapper/320:42:433
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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