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2026-07-03 - 03:54
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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 Fri Jul 03, 2026 00:43:59)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
331834621680,2sleep30-21swapper/322:05:023
329114421150,2sleep30-21swapper/321:49:513
329114421150,2sleep30-21swapper/321:49:513
348096821080,2sleep03480971-21grep23:55:010
35184852580,1sleep03518483-21ssh00:20:180
35184852580,1sleep03518483-21ssh00:20:180
308766299288,4cyclictest0-21swapper/220:10:002
308766099274,4cyclictest0-21swapper/023:24:540
308766099272,19cyclictest3120358-21users19:35:010
308766099272,17cyclictest1242-21mta-sts-daemon23:32:410
3087660992620,5cyclictest660-21dbus-daemon21:40:010
3087660992618,4cyclictest191rcu_preempt22:14:550
308766099255,8cyclictest3221745-21cut20:59:550
308766099253,7cyclictest3294081-21kthreadcore21:49:550
308766099253,7cyclictest3294081-21kthreadcore21:49:550
3087660992513,11cyclictest3425302-21kthreadcore23:19:550
3087660992511,9cyclictest0-21swapper/021:54:520
3087661992421,2cyclictest3428732-21systemctl23:20:011
308766099246,13cyclictest3245949-21/usr/sbin/munin21:19:540
308766099245,8cyclictest3147462-21cut19:59:540
308766099244,7cyclictest3172451-21cut20:19:550
308766099244,7cyclictest3172451-21cut20:19:550
308766099244,4cyclictest3183210-21kernelversion20:29:540
3087660992419,4cyclictest660-21dbus-daemon23:45:010
308766099241,7cyclictest3438318-21/usr/sbin/munin23:29:490
3087660992414,5cyclictest492398rtkit-daemon22:48:100
3087660992412,8cyclictest3459211-21latency_hist23:40:030
3087660992412,3cyclictest3217583-21strings20:54:560
308766099240,3cyclictest3188014-21apt-get20:34:470
35289682230,2sleep30-21swapper/300:29:553
35289682230,2sleep30-21swapper/300:29:553
34539882230,1sleep10-21swapper/123:39:511
3087662992321,1cyclictest0-21swapper/223:50:012
3087662992320,1cyclictest0-21swapper/200:05:012
308766099236,12cyclictest3230515-21gmain21:05:010
308766099235,9cyclictest3405796-21tr23:04:550
308766099234,7cyclictest0-21swapper/022:16:450
308766099232,12cyclictest3176872-21irqcore20:24:510
308766099232,12cyclictest3176872-21irqcore20:24:510
308766099232,11cyclictest3282791-21ssh21:44:040
3087660992318,4cyclictest3518202-21latency_hist00:20:030
3087660992315,7cyclictest3409324-21/usr/sbin/munin23:09:490
3087660992315,4cyclictest191rcu_preempt00:32:430
3087660992310,8cyclictest675-21mta-sts-daemon22:00:360
308766099230,4cyclictest3387488-21irqcore22:54:540
308766099230,4cyclictest3387488-21irqcore22:54:540
3087661992219,2cyclictest3281132-21/usr/sbin/munin21:40:011
3087661992219,2cyclictest1-21systemd23:00:011
308766099229,4cyclictest3393451-21diskmemload22:58:230
308766099229,4cyclictest3305238-21/usr/sbin/munin21:59:490
308766099229,2cyclictest0-21swapper/023:58:380
308766099228,9cyclictest0-21swapper/000:14:570
308766099228,9cyclictest0-21swapper/000:14:570
308766099227,6cyclictest3093991-21latency_hist19:15:010
308766099225,8cyclictest3341664-21ssh22:23:110
308766099225,5cyclictest3366332-21cut22:39:540
308766099225,11cyclictest0-21swapper/020:10:020
308766099223,5cyclictest3262032-21irqstats21:29:550
308766099221,7cyclictest3243424-21diskmemload21:14:590
3087660992216,5cyclictest660-21dbus-daemon22:30:020
3087660992216,5cyclictest3473613-21apt-key23:50:010
3087660992216,5cyclictest3088143-21grep19:10:020
3087660992215,5cyclictest3139039-21systemd19:50:020
3087660992212,3cyclictest16-21ksoftirqd/000:09:520
3087660992212,2cyclictest3236680-21diskmemload21:22:300
308766099220,17cyclictest3207845-21ps20:49:530
308766099220,13cyclictest3358641-21cut22:34:550
308766099220,13cyclictest3205887-21apt-key20:45:010
3087662992118,1cyclictest0-21swapper/223:00:012
3087662992110,6cyclictest0-21swapper/223:20:002
3087661992119,1cyclictest3496201-21/usr/sbin/munin00:05:031
3087661992118,2cyclictest660-21dbus-daemon20:55:001
3087661992118,2cyclictest3355094-21latency_hist22:30:011
3087661992117,2cyclictest1-21systemd21:30:011
3087661992115,2cyclictest67250irq/126-eno123:30:011
308766099219,1cyclictest191rcu_preempt00:17:470
308766099218,4cyclictest3525398-21sensors_fan00:25:040
308766099218,4cyclictest3525398-21sensors_fan00:25:040
308766099215,7cyclictest3489104-21sh00:00:290
308766099213,9cyclictest3370638-21rm22:41:200
308766099213,9cyclictest3199468-21sed20:39:590
308766099213,9cyclictest3143047-21cut19:54:540
308766099212,6cyclictest3320062-21ssh22:09:410
308766099212,5cyclictest3109250-21cstates19:29:490
308766099212,5cyclictest3097869-21irqcore19:19:540
308766099211,7cyclictest3231295-21/usr/sbin/munin21:09:470
3087660992115,5cyclictest3270065-21kthreadcore21:34:560
308766099211,3cyclictest16-21ksoftirqd/000:35:050
308766099210,7cyclictest3417040-21cat23:14:530
308766099210,7cyclictest3105978-21cut19:24:540
308766099210,12cyclictest3127746-21cstates19:44:490
3153791200,2phc2sys0-21swapper/321:19:543
3087662992018,1cyclictest0-21swapper/222:20:012
3087661992017,2cyclictest3465757-21cron23:45:001
3087661992017,2cyclictest3362370-21grep22:35:021
3087661992017,2cyclictest3120384-21systemd-run19:35:011
3087661992017,2cyclictest3093704-21idleruntime-cro19:15:001
3087661992013,3cyclictest3510400-21/usr/sbin/munin00:15:001
3087661992013,3cyclictest3510400-21/usr/sbin/munin00:15:001
308766099202,5cyclictest3163748-21acpi20:14:450
3087660992010,3cyclictest491rcuog/219:39:180
308766099200,11cyclictest3151919-21expr20:04:490
34734662190,2sleep13473439-21ssh23:50:011
3153791191,2phc2sys0-21swapper/323:28:203
308766299195,9cyclictest0-21swapper/200:10:002
3087662991917,1cyclictest0-21swapper/200:20:022
3087662991917,1cyclictest0-21swapper/200:20:022
3087662991916,1cyclictest0-21swapper/221:50:012
3087662991916,1cyclictest0-21swapper/221:50:012
3087662991916,1cyclictest0-21swapper/221:45:022
3087662991916,1cyclictest0-21swapper/221:30:012
3087662991916,1cyclictest0-21swapper/200:40:022
308766199198,5cyclictest0-21swapper/122:39:471
3087661991915,2cyclictest3303339-21unixbench_multi21:55:021
3087661991913,2cyclictest67250irq/126-eno123:34:561
3087661991912,2cyclictest0-21swapper/123:55:021
3087661991910,4cyclictest0-21swapper/122:49:481
3153791180,2phc2sys0-21swapper/323:55:213
3153791180,2phc2sys0-21swapper/322:42:473
3153791180,2phc2sys0-21swapper/322:08:483
3087662991816,1cyclictest0-21swapper/220:35:022
3087662991815,1cyclictest0-21swapper/222:29:552
3087662991815,1cyclictest0-21swapper/220:20:022
3087662991815,1cyclictest0-21swapper/220:20:022
3087662991814,2cyclictest0-21swapper/223:00:172
3087661991815,2cyclictest3108197-21cron19:25:001
3087661991814,3cyclictest3377384-21unixbench_multi22:45:031
3087661991814,3cyclictest3310933-21unixbench_multi22:00:031
3087661991812,2cyclictest1237-21mta-sts-daemon20:02:561
3087661991810,4cyclictest3483153-21/usr/sbin/munin23:59:571
308766199180,3cyclictest3312615-21ssh22:04:381
492398170,2rtkit-daemon0-21swapper/123:10:061
3153791170,2phc2sys0-21swapper/323:54:533
3153791170,2phc2sys0-21swapper/321:59:573
3087662991715,1cyclictest0-21swapper/222:09:452
3087662991715,1cyclictest0-21swapper/200:20:042
3087662991715,1cyclictest0-21swapper/200:20:042
3087662991714,2cyclictest0-21swapper/222:15:012
308766199173,2cyclictest67250irq/126-eno121:35:011
3087661991714,2cyclictest3547217-21mailstats00:39:591
3087661991714,2cyclictest3517857-21systemd-run00:20:021
3087661991714,2cyclictest3517857-21systemd-run00:20:021
3087661991714,2cyclictest3414213-21munin-plugin-st23:10:011
3087661991714,2cyclictest3236647-21head21:10:001
3087661991714,2cyclictest3193155-21munin-plugin-st20:35:001
3087661991714,2cyclictest274-21systemd-journal00:35:021
3087661991714,2cyclictest0-21swapper/121:19:491
3087661991713,2cyclictest0-21swapper/120:45:021
308766199171,15cyclictest3430994-21apt-get23:24:481
308766199171,11cyclictest3289528-21ssh21:47:101
308766199171,11cyclictest3289528-21ssh21:47:101
308766199170,3cyclictest3237050-21ssh21:10:151
492398160,2rtkit-daemon0-21swapper/120:39:361
3153791161,3phc2sys0-21swapper/319:14:483
3153791160,4phc2sys0-21swapper/319:54:473
3153791160,2phc2sys0-21swapper/321:13:283
3153791160,2phc2sys0-21swapper/321:09:523
3153791160,2phc2sys0-21swapper/320:30:023
3087662991614,1cyclictest0-21swapper/223:43:482
3087662991614,1cyclictest0-21swapper/223:25:032
3087662991614,1cyclictest0-21swapper/222:50:022
3087662991613,1cyclictest0-21swapper/223:14:552
3087662991613,1cyclictest0-21swapper/222:52:062
3087662991613,1cyclictest0-21swapper/222:52:062
3087662991613,1cyclictest0-21swapper/222:44:522
3087662991613,1cyclictest0-21swapper/222:35:012
3087662991613,1cyclictest0-21swapper/221:09:532
3087662991613,1cyclictest0-21swapper/200:30:032
3087662991613,1cyclictest0-21swapper/200:30:032
308766199167,4cyclictest0-21swapper/121:45:021
308766199161,9cyclictest3332522-21dump-pmu-power22:15:001
3087661991613,2cyclictest3519930-21sh00:24:381
3087661991613,2cyclictest3519930-21sh00:24:381
3087661991613,2cyclictest3407070-21/usr/sbin/munin23:05:021
3087661991613,2cyclictest3340561-21grep22:20:031
3087661991613,2cyclictest3224081-21timedrift21:00:011
3087661991613,2cyclictest3114417-21munin-plugin-st19:30:021
3087661991613,2cyclictest0-21swapper/122:55:021
3087661991613,2cyclictest0-21swapper/122:55:021
3153791151,2phc2sys0-21swapper/320:20:033
3153791151,2phc2sys0-21swapper/320:20:033
3153791150,5phc2sys0-21swapper/320:35:013
3153791150,3phc2sys0-21swapper/322:10:573
3153791150,2phc2sys0-21swapper/323:38:583
3153791150,2phc2sys0-21swapper/323:00:443
308766299156,3cyclictest0-21swapper/223:39:462
3087662991513,1cyclictest0-21swapper/221:40:012
3087662991513,1cyclictest0-21swapper/221:20:012
3087662991513,1cyclictest0-21swapper/219:49:502
3087662991512,1cyclictest0-21swapper/223:57:472
3087662991512,1cyclictest0-21swapper/223:55:002
3087662991512,1cyclictest0-21swapper/221:59:562
3087662991512,1cyclictest0-21swapper/221:54:532
3087662991512,1cyclictest0-21swapper/221:35:022
3087662991512,1cyclictest0-21swapper/221:04:492
3087662991512,1cyclictest0-21swapper/220:45:012
3087662991512,1cyclictest0-21swapper/220:30:012
3087662991512,1cyclictest0-21swapper/219:15:002
3087662991511,2cyclictest0-21swapper/221:12:012
3087662991511,2cyclictest0-21swapper/220:54:472
3087662991511,2cyclictest0-21swapper/200:10:502
3087662991511,2cyclictest0-21swapper/200:10:502
308766199159,2cyclictest67250irq/126-eno100:29:541
308766199159,2cyclictest67250irq/126-eno100:29:541
3087661991513,1cyclictest0-21swapper/100:10:011
3087661991512,2cyclictest571-21rpcbind21:23:111
3087661991512,2cyclictest3169077-21cron20:15:011
3087661991512,2cyclictest3127973-21fschecks_count19:44:511
3087661991512,2cyclictest0-21swapper/119:20:011
3087661991511,3cyclictest660-21dbus-daemon19:10:021
492398140,10rtkit-daemon1246-21mta-sts-daemon19:51:001
3153791140,3phc2sys0-21swapper/323:31:563
3153791140,2phc2sys0-21swapper/323:21:593
3153791140,2phc2sys0-21swapper/323:06:243
3153791140,2phc2sys0-21swapper/322:36:143
3153791140,2phc2sys0-21swapper/321:24:473
3087662991412,1cyclictest0-21swapper/223:24:552
3087662991412,1cyclictest0-21swapper/221:20:212
3087662991412,1cyclictest0-21swapper/219:30:022
3087662991412,1cyclictest0-21swapper/200:33:102
3087662991411,2cyclictest0-21swapper/223:35:002
3087662991411,2cyclictest0-21swapper/219:35:032
3087662991411,1cyclictest0-21swapper/223:08:412
3087662991411,1cyclictest0-21swapper/222:23:442
3087662991411,1cyclictest0-21swapper/222:00:312
3087662991411,1cyclictest0-21swapper/220:45:352
3087662991411,1cyclictest0-21swapper/219:24:542
3087662991410,2cyclictest0-21swapper/220:24:532
3087662991410,2cyclictest0-21swapper/220:24:532
3087662991410,2cyclictest0-21swapper/219:59:542
308766199148,5cyclictest1246-21mta-sts-daemon22:07:591
308766199145,5cyclictest1246-21mta-sts-daemon20:08:131
3087661991411,2cyclictest3335684-21if_enp1s0.822:19:531
3087661991411,2cyclictest3230091-21switchtime21:05:011
3087661991411,2cyclictest3207091-21cstates20:49:491
3087661991411,2cyclictest3177175-21kthreadcore20:24:521
3087661991411,2cyclictest3177175-21kthreadcore20:24:521
3087661991411,2cyclictest3174349-21kthreadcore20:19:561
3087661991411,2cyclictest3174349-21kthreadcore20:19:561
3087661991411,2cyclictest3150569-21mailstats19:59:591
3087661991411,2cyclictest3121546-21cpuspeed_turbos19:39:491
3087661991411,2cyclictest1247-21mta-sts-daemon19:50:001
3087661991410,3cyclictest3184721-21kthreadcore20:29:551
3153791132,2phc2sys0-21swapper/300:04:553
3153791131,2phc2sys0-21swapper/321:50:533
3153791130,4phc2sys0-21swapper/300:24:083
3153791130,4phc2sys0-21swapper/300:24:083
3153791130,3phc2sys0-21swapper/322:34:463
3153791130,2phc2sys0-21swapper/323:17:103
3153791130,2phc2sys0-21swapper/322:46:213
3153791130,2phc2sys0-21swapper/322:26:403
3153791130,2phc2sys0-21swapper/321:29:323
3153791130,2phc2sys0-21swapper/320:58:303
3153791130,2phc2sys0-21swapper/300:11:453
3153791130,2phc2sys0-21swapper/300:11:453
308766299138,3cyclictest0-21swapper/219:44:482
3087662991311,1cyclictest0-21swapper/222:35:402
3087662991311,1cyclictest0-21swapper/220:40:002
3087662991311,1cyclictest0-21swapper/219:39:582
3087662991311,1cyclictest0-21swapper/219:19:502
3087662991310,1cyclictest0-21swapper/220:01:592
308766299130,7cyclictest0-21swapper/221:00:002
32665402120,4sleep30-21swapper/321:30:323
32035302122,4sleep30-21swapper/320:44:553
3153791120,3phc2sys0-21swapper/319:27:163
3153791120,3phc2sys0-21swapper/300:39:473
3153791120,2phc2sys0-21swapper/322:20:473
3153791120,2phc2sys0-21swapper/319:33:473
3153791120,1phc2sys0-21swapper/320:54:133
3153791120,1phc2sys0-21swapper/319:19:373
3153791120,1phc2sys0-21swapper/319:09:433
308766299129,1cyclictest0-21swapper/220:10:512
3087662991210,1cyclictest0-21swapper/219:50:482
3087662991210,1cyclictest0-21swapper/219:10:022
3153791112,2phc2sys0-21swapper/300:34:503
3153791110,3phc2sys0-21swapper/319:35:363
3153791110,2phc2sys0-21swapper/323:43:033
3153791110,2phc2sys0-21swapper/320:24:563
3153791110,2phc2sys0-21swapper/320:24:563
3153791110,2phc2sys0-21swapper/300:06:233
3153791110,1phc2sys0-21swapper/320:39:113
3153791110,1phc2sys0-21swapper/320:12:103
3153791110,1phc2sys0-21swapper/320:09:383
3153791101,2phc2sys0-21swapper/322:56:383
3153791100,2phc2sys0-21swapper/323:13:173
3153791100,2phc2sys0-21swapper/322:50:573
3153791100,2phc2sys0-21swapper/322:50:573
3153791100,2phc2sys0-21swapper/322:17:103
3153791100,2phc2sys0-21swapper/321:43:113
3153791100,2phc2sys0-21swapper/320:49:493
3153791100,2phc2sys0-21swapper/320:04:533
3153791100,2phc2sys0-21swapper/300:18:093
3153791100,2phc2sys0-21swapper/300:18:093
3153791100,1phc2sys0-21swapper/319:55:153
315379191,3phc2sys0-21swapper/319:40:323
315379191,2phc2sys0-21swapper/319:45:213
315379191,2phc2sys0-21swapper/319:21:413
315379190,2phc2sys0-21swapper/323:45:033
315379190,2phc2sys0-21swapper/321:35:173
315379181,3phc2sys0-21swapper/321:00:463
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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