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2026-04-30 - 13:47
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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 Thu Apr 30, 2026 00:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
29587112850,2sleep30-21swapper/321:35:383
31164412670,1sleep13116440-21ssh00:15:171
31166892570,1sleep03116687-21ssh00:16:080
30826402310,2sleep30-21swapper/323:40:363
2649091291,8phc2sys0-21swapper/323:00:293
2761693992824,2cyclictest134050irq/121-eno123:00:291
2761693992418,2cyclictest134050irq/121-eno121:30:021
2761692992411,9cyclictest0-21swapper/022:00:390
2761692992320,2cyclictest3013822-21latency_hist22:30:010
2761693992219,2cyclictest3135260-21sh00:35:011
2761693992219,2cyclictest3135260-21sh00:35:011
2761692992211,6cyclictest0-21swapper/021:35:360
2649091220,2phc2sys0-21swapper/321:33:033
383433398210,6rtkit-daemon3851702-21mta-sts-daemon23:01:240
2761693992118,2cyclictest3125508-21systemd00:25:001
2761693992117,3cyclictest1290-21dbus-daemon00:00:021
2761693992116,2cyclictest17350irq/127-ahci[0000:00:17.0]23:40:001
2761693992114,3cyclictest2926323-21kthreadcore21:15:351
2761692992118,2cyclictest2945855-21latency_hist21:30:010
2761692992117,2cyclictest0-21swapper/000:35:020
2761692992117,2cyclictest0-21swapper/000:35:020
2761692992111,5cyclictest0-21swapper/021:25:000
276169499201,12cyclictest0-21swapper/219:40:002
276169499201,12cyclictest0-21swapper/219:40:002
2761693992017,2cyclictest2976229-21/usr/sbin/munin21:50:011
2761693992017,2cyclictest2858827-21systemd-run20:25:021
2761693992017,2cyclictest2801839-21sendmail19:40:001
2761693992017,2cyclictest2801839-21sendmail19:40:001
2761692992017,2cyclictest1296-21polkitd00:10:000
2761692992012,7cyclictest0-21swapper/023:25:000
27866052190,3sleep30-21swapper/319:25:373
2761694991917,1cyclictest0-21swapper/219:15:022
2761694991916,1cyclictest0-21swapper/222:45:002
2761694991916,1cyclictest0-21swapper/221:00:012
2761694991915,2cyclictest0-21swapper/200:10:012
2761693991910,5cyclictest3026966-21ssh22:40:361
2761692991918,1cyclictest0-21swapper/020:58:070
2761692991916,2cyclictest3097090-21cron23:55:000
2761692991916,2cyclictest0-21swapper/019:40:000
2761692991916,2cyclictest0-21swapper/019:40:000
2761692991913,5cyclictest2968678-21cron21:45:000
2649091190,2phc2sys0-21swapper/300:10:553
2761694991816,1cyclictest0-21swapper/219:15:032
2761694991815,1cyclictest0-21swapper/222:51:052
2761693991815,2cyclictest2976931-21tr21:50:311
2761693991815,2cyclictest2935228-21kthreadcore21:20:361
2761693991815,2cyclictest1290-21dbus-daemon22:40:001
2761693991815,2cyclictest0-21swapper/123:00:011
2761693991811,3cyclictest2955181-21kthreadcore21:35:361
276169299189,5cyclictest2761690-21cyclictest22:25:010
276169299189,4cyclictest0-21swapper/022:50:010
276169299185,1cyclictest2807158-21phc2sys19:40:400
2761692991815,2cyclictest2930810-21cron21:20:000
2761692991815,2cyclictest0-21swapper/020:40:000
2761692991814,3cyclictest2855271-21kthreadcore20:20:370
2761692991814,2cyclictest0-21swapper/019:25:010
2761694991715,1cyclictest0-21swapper/221:10:022
2761694991714,1cyclictest0-21swapper/223:40:002
2761694991714,1cyclictest0-21swapper/223:15:002
2761694991714,1cyclictest0-21swapper/221:25:002
2761694991713,2cyclictest0-21swapper/222:10:292
2761693991715,1cyclictest1996-21runrttasks00:02:481
2761693991715,1cyclictest1996-21runrttasks00:02:481
2761693991714,2cyclictest3116142-21sh00:15:001
2761693991714,2cyclictest3097338-21latency_hist23:55:021
2761693991714,2cyclictest3017928-21kthreadcore22:30:381
2761693991714,2cyclictest3013873-21systemd22:30:011
2761693991714,2cyclictest2916367-21aten_repower_fr21:10:301
2761693991714,2cyclictest2902817-21apt-key21:00:021
2761693991714,2cyclictest2852147-21systemd-run20:20:011
2761693991714,2cyclictest2839693-21systemd-run20:10:021
2761693991714,2cyclictest2789367-21systemd-run19:30:001
2761693991714,2cyclictest1296-21polkitd21:05:011
2761693991714,2cyclictest1296-21polkitd21:05:011
2761693991710,3cyclictest2995426-21/usr/sbin/munin22:10:341
276169299179,4cyclictest2864527-21kworker/u16:3-events_unbound21:00:290
276169299179,4cyclictest2864527-21kworker/u16:3-events_unbound21:00:290
276169299178,7cyclictest0-21swapper/021:50:010
276169299178,5cyclictest0-21swapper/000:10:370
276169299172,8cyclictest0-21swapper/021:10:380
2761692991714,2cyclictest3105334-21sh00:01:040
2761692991714,2cyclictest3105334-21sh00:01:040
2761692991714,2cyclictest3080309-21cut23:40:010
2761692991714,2cyclictest2852057-21munin-run20:20:000
2761692991714,2cyclictest2826983-21systemd-run20:00:000
2761692991714,2cyclictest0-21swapper/021:10:010
2761692991713,2cyclictest0-21swapper/000:30:010
2761692991711,5cyclictest2782723-21GUsbEventThread19:45:180
2761692991710,6cyclictest0-21swapper/023:40:350
2649091170,2phc2sys0-21swapper/323:38:293
2649091170,2phc2sys0-21swapper/322:42:543
2649091170,2phc2sys0-21swapper/320:26:223
2649091170,1phc2sys0-21swapper/323:31:353
383433398160,4rtkit-daemon2758801-21kthreadcore19:05:361
276169499167,5cyclictest0-21swapper/223:30:292
2761694991614,1cyclictest0-21swapper/222:39:152
2761694991614,1cyclictest0-21swapper/220:20:012
2761694991613,2cyclictest0-21swapper/221:10:372
2761694991613,1cyclictest0-21swapper/223:25:002
2761694991613,1cyclictest0-21swapper/222:20:322
2761694991613,1cyclictest0-21swapper/219:35:002
2761694991613,1cyclictest0-21swapper/200:21:472
276169399169,6cyclictest3851703-21mta-sts-daemon20:35:311
2761693991613,2cyclictest3834332-21rtkit-daemon23:15:241
2761693991613,2cyclictest3040512-21systemd-run22:55:001
2761693991613,2cyclictest2991303-21mailstats22:00:421
2761693991613,2cyclictest2878676-21sort20:40:351
2761693991613,2cyclictest2768370-21latency_hist19:15:021
2761693991613,2cyclictest1996-21runrttasks23:08:571
2761693991613,2cyclictest0-21swapper/120:25:021
2761693991610,5cyclictest3851705-21mta-sts-daemon23:25:321
276169299169,6cyclictest2915515-21diskmemload22:12:330
276169299169,2cyclictest0-21swapper/022:50:280
276169299168,5cyclictest3851704-21mta-sts-daemon23:25:040
276169299168,3cyclictest0-21swapper/000:20:290
276169299161,8cyclictest0-21swapper/021:53:500
2761692991613,2cyclictest3851704-21mta-sts-daemon22:39:020
2761692991613,2cyclictest2947459-21grep21:30:340
2761692991613,2cyclictest0-21swapper/023:50:010
2761692991613,2cyclictest0-21swapper/022:35:020
2761692991613,2cyclictest0-21swapper/022:20:010
2761692991610,5cyclictest3834332-21rtkit-daemon22:57:240
2649091161,5phc2sys0-21swapper/319:45:293
30809822150,2sleep20-21swapper/223:40:312
2761694991513,1cyclictest0-21swapper/222:50:012
2761694991513,1cyclictest0-21swapper/221:40:362
2761694991513,1cyclictest0-21swapper/221:20:012
2761694991512,1cyclictest0-21swapper/223:50:342
2761694991512,1cyclictest0-21swapper/223:06:202
2761694991512,1cyclictest0-21swapper/222:00:292
2761694991512,1cyclictest0-21swapper/221:50:352
2761694991512,1cyclictest0-21swapper/220:20:362
2761694991512,1cyclictest0-21swapper/200:00:402
2761694991512,1cyclictest0-21swapper/200:00:402
276169499151,10cyclictest0-21swapper/220:30:002
276169399159,2cyclictest3851702-21mta-sts-daemon00:07:431
276169399159,2cyclictest17350irq/127-ahci[0000:00:17.0]22:25:001
276169399159,1cyclictest501rcuop/220:30:281
276169399156,4cyclictest2968704-21wc21:45:001
276169399151,7cyclictest0-21swapper/120:45:301
2761693991512,2cyclictest3851704-21mta-sts-daemon23:48:041
2761693991512,2cyclictest3851703-21mta-sts-daemon23:24:041
2761693991512,2cyclictest3824565-21in:imuxsock19:15:021
2761693991512,2cyclictest3137296-21grep00:40:021
2761693991512,2cyclictest2947714-21kthreadcore21:30:351
2761693991512,2cyclictest2915226-21sshd21:06:211
2761693991512,2cyclictest2842688-21sed20:10:381
2761693991512,2cyclictest2833246-21munin-plugin-st20:05:011
2761693991512,2cyclictest2783189-21latency_hist19:25:021
2761693991512,2cyclictest2761690-21cyclictest23:30:301
2761693991511,3cyclictest2825464-21kthreadcore19:55:371
2761693991511,3cyclictest2791290-21kthreadcore19:30:371
276169299158,6cyclictest3851702-21mta-sts-daemon19:15:320
276169299155,6cyclictest0-21swapper/020:14:310
2761692991512,2cyclictest2814686-21sort19:50:270
2761692991512,2cyclictest2768472-21/usr/sbin/munin19:15:020
2761692991512,2cyclictest1296-21polkitd23:15:010
2761692991512,2cyclictest0-21swapper/019:35:000
2761692991510,1cyclictest383433398rtkit-daemon22:42:200
2649091150,4phc2sys0-21swapper/320:20:023
2649091150,3phc2sys0-21swapper/300:24:163
2649091150,3phc2sys0-21swapper/300:00:413
2649091150,3phc2sys0-21swapper/300:00:413
2649091150,2phc2sys0-21swapper/323:58:533
2649091150,2phc2sys0-21swapper/323:25:333
2649091150,2phc2sys0-21swapper/321:24:553
2649091150,2phc2sys0-21swapper/300:30:503
2649091150,2phc2sys0-21swapper/300:30:503
2649091150,2phc2sys0-21swapper/300:19:363
276169499149,3cyclictest31098552chrt00:10:332
2761694991412,1cyclictest0-21swapper/220:40:012
2761694991412,1cyclictest0-21swapper/220:00:422
2761694991411,1cyclictest0-21swapper/223:47:242
2761694991411,1cyclictest0-21swapper/222:33:242
2761694991411,1cyclictest0-21swapper/222:08:402
2761694991411,1cyclictest0-21swapper/221:30:402
2761694991411,1cyclictest0-21swapper/220:45:422
2761694991411,1cyclictest0-21swapper/220:40:362
2761694991411,1cyclictest0-21swapper/220:30:322
2761694991411,1cyclictest0-21swapper/219:50:302
2761694991411,1cyclictest0-21swapper/200:31:192
2761694991411,1cyclictest0-21swapper/200:31:192
2761694991411,1cyclictest0-21swapper/200:27:102
2761694991410,2cyclictest0-21swapper/222:55:542
276169399149,2cyclictest2814827-21tail19:50:291
276169399147,6cyclictest3851702-21mta-sts-daemon21:56:001
2761693991412,1cyclictest3851704-21mta-sts-daemon22:46:141
2761693991412,1cyclictest3851704-21mta-sts-daemon22:16:131
2761693991411,2cyclictest3851702-21mta-sts-daemon22:07:351
2761693991411,2cyclictest2891899-21kthreadcore20:50:361
2761693991411,2cyclictest2814335-21idleruntime-cro19:50:001
2761693991411,2cyclictest2802809-21cut19:40:331
2761693991410,3cyclictest3118012-21kworker/u16:3+nfsiod00:26:431
2761693991410,3cyclictest3056235-21kthreadcore23:10:361
276169299148,5cyclictest3851702-21mta-sts-daemon23:55:450
276169299144,6cyclictest0-21swapper/020:02:220
276169299142,7cyclictest0-21swapper/020:46:210
2761692991411,2cyclictest3851702-21mta-sts-daemon23:09:080
2761692991411,2cyclictest0-21swapper/023:20:010
2761692991410,3cyclictest2890996-21gltestperf20:50:330
2761692991410,3cyclictest2880318-21kthreadcore20:40:370
276169299140,9cyclictest2836949-21cut20:05:370
2649091140,2phc2sys0-21swapper/322:32:043
2649091140,2phc2sys0-21swapper/321:55:313
2649091140,2phc2sys0-21swapper/321:18:133
2649091140,2phc2sys0-21swapper/319:53:453
276169499139,2cyclictest0-21swapper/221:25:322
2761694991311,1cyclictest0-21swapper/223:28:382
2761694991311,1cyclictest0-21swapper/219:48:472
2761694991311,1cyclictest0-21swapper/219:20:392
2761694991310,1cyclictest0-21swapper/223:55:482
2761694991310,1cyclictest0-21swapper/223:00:312
2761694991310,1cyclictest0-21swapper/221:55:222
2761694991310,1cyclictest0-21swapper/221:35:312
2761694991310,1cyclictest0-21swapper/220:52:502
2761694991310,1cyclictest0-21swapper/220:10:392
2761694991310,1cyclictest0-21swapper/219:55:362
2761694991310,1cyclictest0-21swapper/219:40:372
2761694991310,1cyclictest0-21swapper/200:35:362
2761694991310,1cyclictest0-21swapper/200:18:152
2761693991310,2cyclictest3851703-21mta-sts-daemon23:43:241
276169299131,8cyclictest2859145-21cpuspeed20:25:320
2761692991310,2cyclictest3851702-21mta-sts-daemon00:35:220
2761692991310,2cyclictest3071482-21cut23:30:310
2761692991310,2cyclictest2869325-21kthreadcore20:30:360
2761692991310,2cyclictest2785257-21kthreadcore19:25:360
2649091133,1phc2sys0-21swapper/319:35:163
2649091133,1phc2sys0-21swapper/319:35:163
2649091130,2phc2sys0-21swapper/322:56:553
2649091130,2phc2sys0-21swapper/322:19:333
2649091130,2phc2sys0-21swapper/321:43:493
2649091130,1phc2sys0-21swapper/323:14:563
2649091130,1phc2sys0-21swapper/321:49:343
276169499129,2cyclictest0-21swapper/221:00:252
276169499129,2cyclictest0-21swapper/221:00:252
276169499129,1cyclictest0-21swapper/219:25:332
276169499129,1cyclictest0-21swapper/219:10:012
276169499128,2cyclictest0-21swapper/222:16:092
276169499123,5cyclictest0-21swapper/220:05:302
2761694991210,1cyclictest0-21swapper/222:26:152
2761694991210,1cyclictest0-21swapper/221:46:182
276169299123,1cyclictest491rcuog/222:06:020
276169299121,1cyclictest491rcuog/221:55:350
2649091121,5phc2sys0-21swapper/321:50:293
2649091121,2phc2sys0-21swapper/319:44:143
2649091120,3phc2sys0-21swapper/321:05:413
2649091120,2phc2sys0-21swapper/322:03:503
2649091120,2phc2sys0-21swapper/320:12:593
2649091120,2phc2sys0-21swapper/320:00:293
2649091120,1phc2sys0-21swapper/320:55:273
276169499118,1cyclictest0-21swapper/223:15:152
276169299114,5cyclictest1290-21dbus-daemon19:10:010
2649091113,2phc2sys0-21swapper/323:22:543
2649091112,2phc2sys0-21swapper/323:09:593
2649091111,2phc2sys0-21swapper/323:53:163
2649091111,2phc2sys0-21swapper/319:25:033
2649091110,5phc2sys0-21swapper/320:50:293
2649091110,3phc2sys0-21swapper/322:51:523
2649091110,3phc2sys0-21swapper/320:30:313
2649091110,2phc2sys0-21swapper/323:46:593
2649091110,2phc2sys0-21swapper/322:47:513
2649091110,2phc2sys0-21swapper/322:24:423
2649091110,2phc2sys0-21swapper/321:28:543
2649091110,1phc2sys0-21swapper/320:49:343
2649091110,1phc2sys0-21swapper/320:38:363
2649091110,1phc2sys0-21swapper/320:23:493
2649091110,1phc2sys0-21swapper/319:32:243
2649091101,2phc2sys0-21swapper/322:37:493
2649091101,2phc2sys0-21swapper/300:27:273
2649091100,2phc2sys0-21swapper/323:20:013
2649091100,2phc2sys0-21swapper/322:27:393
2649091100,2phc2sys0-21swapper/322:14:203
2649091100,2phc2sys0-21swapper/321:10:023
2649091100,2phc2sys0-21swapper/320:40:333
2649091100,2phc2sys0-21swapper/320:05:303
2649091100,2phc2sys0-21swapper/320:00:013
2649091100,2phc2sys0-21swapper/319:05:313
2649091100,2phc2sys0-21swapper/300:36:323
2649091100,2phc2sys0-21swapper/300:07:473
264909191,2phc2sys0-21swapper/319:10:323
264909190,2phc2sys0-21swapper/322:05:263
264909190,2phc2sys0-21swapper/321:05:013
264909190,2phc2sys0-21swapper/321:05:013
264909190,2phc2sys0-21swapper/319:15:333
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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