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2026-05-28 - 21:44
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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 Thu May 28, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
328136421090,1sleep00-21swapper/012:29:530
30819382980,2sleep12829654-21cyclictest10:19:471
2829655993419,13cyclictest3026663-21sh09:40:000
2829655993126,4cyclictest0-21swapper/011:05:010
2829655993126,4cyclictest0-21swapper/011:05:010
2829655992923,5cyclictest2968627-21sed09:00:010
2829656992825,2cyclictest3824500-21cron12:05:001
2829656992818,2cyclictest0-21swapper/112:00:011
2829656992721,2cyclictest134050irq/121-eno110:55:021
2829656992712,9cyclictest0-21swapper/109:55:011
2829655992722,4cyclictest3200461-21ssh11:35:010
2829655992712,6cyclictest3296121-21kthreadcore12:39:550
2829657992616,4cyclictest0-21swapper/209:00:002
2829656992622,3cyclictest3261429-21unixbench_multi12:15:011
2829655992621,4cyclictest2937505-21grep08:35:000
2829655992621,4cyclictest0-21swapper/010:25:010
2829655992615,10cyclictest3248283-21aten2.4-expect12:09:470
2829655992614,11cyclictest3037292-21sort09:49:540
2829655992612,9cyclictest0-21swapper/010:54:550
2829656992522,2cyclictest1290-21dbus-daemon08:00:011
2829656992513,7cyclictest3851705-21mta-sts-daemon12:34:291
2829655992519,5cyclictest2906653-21unixbench_singl08:10:010
2829655992513,8cyclictest3236771-21kthreadcore11:59:560
2829655992512,5cyclictest3256293-21df_inode12:14:500
2829655992512,5cyclictest0-21swapper/010:39:550
2829655992511,7cyclictest3121187-21kthreadcore10:44:540
2829655992511,6cyclictest2962769-1cat08:55:010
2829656992421,2cyclictest1290-21dbus-daemon11:50:001
2829656992420,2cyclictest0-21swapper/111:45:001
282965599248,9cyclictest3078850-21cut10:14:580
2829655992417,5cyclictest0-21swapper/009:10:010
2829655992415,1cyclictest383433398rtkit-daemon10:58:460
2829655992414,1cyclictest134050irq/121-eno110:08:200
2829655992411,6cyclictest2887601-21munin-plugin-st07:55:000
2829655992410,5cyclictest3246178-21munin-run12:05:010
2829657992320,1cyclictest0-21swapper/211:25:002
2829656992318,3cyclictest0-21swapper/107:40:001
2829656992317,5cyclictest0-21swapper/108:20:011
2829656992317,5cyclictest0-21swapper/108:20:001
282965599239,6cyclictest3180272-21tr11:24:490
282965599239,6cyclictest2989429-21munin-run09:15:020
282965599237,8cyclictest1290-21dbus-daemon07:10:010
282965599236,4cyclictest3109528-21kthreadcore10:34:550
282965599235,9cyclictest3102551-21python310:30:000
282965599233,6cyclictest3225799-21cstates11:54:480
2829655992317,5cyclictest3276075-21systemd-run12:25:010
2829655992314,1cyclictest383433398rtkit-daemon09:29:180
2829655992312,10cyclictest3222381-21kthreadcore11:49:560
2649091231,8phc2sys0-21swapper/310:50:003
2829657992219,1cyclictest0-21swapper/209:10:012
2829656992219,2cyclictest3057282-21timerandwakeup10:00:031
2829656992210,3cyclictest0-21swapper/112:29:471
282965599229,5cyclictest2919796-21telnet08:24:480
282965599229,5cyclictest0-21swapper/011:44:490
282965599228,7cyclictest3207431-21phc2sys11:39:580
282965599227,7cyclictest2835735-21latency_hist07:15:010
282965599224,7cyclictest2914224-21sshd08:19:520
282965599224,7cyclictest2914224-21sshd08:19:520
2829655992216,5cyclictest3087164-21apt-config10:20:000
2829655992216,5cyclictest2994271-21sort09:19:560
2829655992216,5cyclictest2866593-21kthreadcore07:39:550
282965599221,5cyclictest2851985-21cat07:29:520
2829655992215,6cyclictest3046728-21kthreadcore09:54:550
2829655992215,6cyclictest3016743-21kthreadcore09:34:550
2829655992215,6cyclictest2841637-21kthreadcore07:19:570
2829655992215,2cyclictest3034223-21systemd-run09:45:010
2829655992214,3cyclictest2891485-21kthreadcore07:59:580
2829655992212,9cyclictest3851704-21mta-sts-daemon11:09:500
2829655992210,7cyclictest0-21swapper/010:00:030
282965599220,6cyclictest3125873-21ssh10:45:110
2649091221,2phc2sys0-21swapper/310:44:553
31848992210,2sleep13184894-21strings11:24:581
2829656992118,2cyclictest3841370-21avahi-daemon08:55:001
2829656992118,2cyclictest3827634-1atopacctd10:35:011
2829656992118,2cyclictest2881518-21timerandwakeup07:50:001
2829656992118,2cyclictest2829654-21cyclictest11:15:021
2829656992118,2cyclictest1290-21dbus-daemon09:50:011
2829656992118,2cyclictest0-21swapper/111:30:011
2829656992115,5cyclictest2829654-21cyclictest10:29:561
282965599219,4cyclictest3051171-21ssh09:59:230
282965599218,6cyclictest2896568-21tr08:04:540
282965599217,7cyclictest3263044-21sh12:19:160
282965599217,3cyclictest3851705-21mta-sts-daemon08:25:460
2829655992115,2cyclictest2975238-21tail09:05:000
2829655992114,6cyclictest3167906-21kthreadcore11:14:570
2829655992114,2cyclictest2912628-21timerandwakeup08:15:000
2829655992113,3cyclictest2952322-21kthreadcore08:49:540
2829655992113,3cyclictest2947714-21kthreadcore08:44:570
2829655992113,3cyclictest2941519-21kthreadcore08:39:550
2829655992113,3cyclictest2860329-21kthreadcore07:34:530
2829655992113,3cyclictest2829654-21cyclictest09:24:550
2829655992112,4cyclictest0-21swapper/007:50:000
282965799207,8cyclictest0-21swapper/209:40:012
2829657992018,1cyclictest0-21swapper/208:00:002
282965699208,4cyclictest0-21swapper/110:14:481
282965699208,3cyclictest0-21swapper/111:39:481
2829656992017,2cyclictest2969125-21uptime09:00:011
2829656992017,2cyclictest0-21swapper/109:45:011
2829656992017,2cyclictest0-21swapper/108:45:021
2829656992015,3cyclictest3023811-21kthreadcore09:39:551
282965599209,2cyclictest0-21swapper/011:15:390
282965599206,7cyclictest3834332-21rtkit-daemon07:24:530
2829655992013,2cyclictest2875707-21grep07:45:020
282965599200,5cyclictest3284565-21ssh12:31:090
29769552190,2sleep30-21swapper/309:09:513
282965799196,6cyclictest0-21swapper/207:20:002
2829657991917,1cyclictest0-21swapper/212:40:012
2829657991916,1cyclictest0-21swapper/211:50:012
2829657991916,1cyclictest0-21swapper/210:25:012
2829657991916,1cyclictest0-21swapper/208:05:012
2829656991916,2cyclictest3117692-21awk10:40:001
2829656991916,2cyclictest2900587-21/usr/sbin/munin08:05:021
2829656991916,2cyclictest2850449-21timerwakeupswit07:25:001
2829656991916,2cyclictest1290-21dbus-daemon09:35:021
2829656991914,3cyclictest3158656-21irqrtprio11:09:541
282965599195,7cyclictest3187104-21taskset11:28:540
2829657991816,1cyclictest0-21swapper/209:41:552
2829657991816,1cyclictest0-21swapper/208:25:032
2829657991815,1cyclictest0-21swapper/211:45:032
2829657991815,1cyclictest0-21swapper/211:40:012
2829657991811,4cyclictest0-21swapper/211:20:002
282965699185,3cyclictest134050irq/121-eno107:10:011
2829656991815,2cyclictest3275927-21latency_hist12:25:001
2829656991815,2cyclictest3226777-21kthreadcore11:54:521
2829656991815,2cyclictest3170804-21grep11:15:031
2829656991815,2cyclictest2969287-21fwupd09:00:481
2829656991815,2cyclictest2912715-21cron08:15:001
2829656991814,2cyclictest2931463-21munin-run08:30:001
2649091180,2phc2sys0-21swapper/311:06:563
2649091180,2phc2sys0-21swapper/310:10:453
2649091180,2phc2sys0-21swapper/310:01:153
2649091180,2phc2sys0-21swapper/309:30:053
383433398170,2rtkit-daemon3851703-21mta-sts-daemon07:53:061
2829657991715,1cyclictest0-21swapper/212:25:022
2829657991715,1cyclictest0-21swapper/212:05:002
2829657991715,1cyclictest0-21swapper/210:20:012
2829657991715,1cyclictest0-21swapper/208:40:012
2829657991714,1cyclictest0-21swapper/209:25:002
2829657991714,1cyclictest0-21swapper/207:45:012
2829657991712,3cyclictest0-21swapper/207:50:012
2829656991714,2cyclictest1290-21dbus-daemon12:40:021
2829656991714,2cyclictest1-21systemd08:40:011
2829656991714,2cyclictest0-21swapper/111:05:011
2829656991714,2cyclictest0-21swapper/111:05:011
2649091170,2phc2sys0-21swapper/312:10:143
2829657991614,1cyclictest0-21swapper/211:05:022
2829657991614,1cyclictest0-21swapper/211:05:022
2829657991614,1cyclictest0-21swapper/208:20:012
2829657991614,1cyclictest0-21swapper/208:20:012
2829657991613,1cyclictest0-21swapper/212:20:002
2829657991613,1cyclictest0-21swapper/211:34:552
2829657991613,1cyclictest0-21swapper/210:15:002
2829657991613,1cyclictest0-21swapper/209:04:512
2829657991612,2cyclictest0-21swapper/208:54:592
2829656991614,1cyclictest0-21swapper/108:35:011
2829656991613,2cyclictest3130283-21sort10:49:541
2829656991613,2cyclictest2829654-21cyclictest09:29:561
2829656991613,2cyclictest0-21swapper/112:20:001
2829656991612,2cyclictest134050irq/121-eno109:19:501
2649091160,8phc2sys0-21swapper/309:29:483
282965799151,8cyclictest0-21swapper/208:30:002
282965799151,7cyclictest0-21swapper/211:30:002
2829657991513,1cyclictest0-21swapper/212:10:012
2829657991513,1cyclictest0-21swapper/207:55:022
2829657991512,2cyclictest0-21swapper/210:30:012
2829657991512,1cyclictest0-21swapper/210:45:022
2829657991512,1cyclictest0-21swapper/210:35:012
2829657991512,1cyclictest0-21swapper/209:59:242
2829657991512,1cyclictest0-21swapper/209:14:502
2829657991512,1cyclictest0-21swapper/208:34:512
282965699158,2cyclictest134050irq/121-eno109:20:021
282965699156,2cyclictest134050irq/121-eno110:57:491
282965699155,2cyclictest17350irq/127-ahci[0000:00:17.0]11:35:011
282965699155,2cyclictest134050irq/121-eno110:42:471
282965699151,4cyclictest2863002-21latency_hist07:35:011
2829656991512,2cyclictest3851704-21mta-sts-daemon10:06:211
2829656991512,2cyclictest3851703-21mta-sts-daemon12:07:191
2829656991512,2cyclictest3851702-21mta-sts-daemon07:17:251
2829656991512,2cyclictest2956206-21idleruntime-cro08:50:001
2829656991512,2cyclictest2798925-21kworker/u16:0-events_power_efficient07:30:011
2829656991512,2cyclictest0-21swapper/109:15:001
2829656991510,4cyclictest3834328-21sendmail-mta07:40:571
2829656991510,2cyclictest3851703-21mta-sts-daemon10:02:391
2649091150,2phc2sys0-21swapper/312:23:313
2649091150,2phc2sys0-21swapper/310:17:463
2649091150,2phc2sys0-21swapper/309:45:573
2649091150,1phc2sys0-21swapper/312:35:503
282965799149,3cyclictest0-21swapper/209:49:592
2829657991412,1cyclictest0-21swapper/210:55:022
2829657991412,1cyclictest0-21swapper/209:35:012
2829657991412,1cyclictest0-21swapper/208:50:022
2829657991412,1cyclictest0-21swapper/208:45:002
2829657991412,1cyclictest0-21swapper/207:15:022
2829657991411,1cyclictest0-21swapper/209:55:022
2829657991411,1cyclictest0-21swapper/209:30:012
2829657991411,1cyclictest0-21swapper/208:15:012
2829657991410,2cyclictest0-21swapper/211:12:382
2829657991410,2cyclictest0-21swapper/210:07:102
2829657991410,2cyclictest0-21swapper/207:39:502
282965799140,9cyclictest0-21swapper/209:20:002
282965699142,6cyclictest134050irq/121-eno109:05:041
2829656991411,2cyclictest3095322-21wc10:25:001
2829656991411,2cyclictest2902388-21kthreadcore08:09:551
2829656991411,2cyclictest2830771-21cpuspeed_turbos07:14:501
2829656991410,3cyclictest2922659-21kthreadcore08:24:551
2649091141,6phc2sys0-21swapper/307:09:483
2649091140,2phc2sys0-21swapper/311:18:133
2649091140,2phc2sys0-21swapper/310:58:003
2649091140,2phc2sys0-21swapper/310:29:213
2649091140,2phc2sys0-21swapper/309:41:113
2649091140,1phc2sys0-21swapper/309:53:203
2649091140,1phc2sys0-21swapper/309:03:593
2649091140,1phc2sys0-21swapper/308:22:583
2829657991311,1cyclictest0-21swapper/212:31:372
2829657991311,1cyclictest0-21swapper/212:00:012
2829657991311,1cyclictest0-21swapper/211:00:002
2829657991310,2cyclictest0-21swapper/211:08:052
2829657991310,1cyclictest0-21swapper/212:14:382
2829657991310,1cyclictest0-21swapper/210:46:182
2829657991310,1cyclictest0-21swapper/210:37:132
2829657991310,1cyclictest0-21swapper/210:05:002
2829657991310,1cyclictest0-21swapper/207:34:522
2829657991310,1cyclictest0-21swapper/207:10:012
2649091132,3phc2sys0-21swapper/309:19:563
2649091131,4phc2sys0-21swapper/309:24:473
2649091131,3phc2sys0-21swapper/312:29:543
2649091130,4phc2sys0-21swapper/309:56:323
2649091130,2phc2sys0-21swapper/311:54:203
2649091130,1phc2sys0-21swapper/310:52:423
28806262120,4sleep30-21swapper/307:49:573
282965799129,2cyclictest0-21swapper/212:26:302
282965799129,1cyclictest0-21swapper/208:08:082
282965799129,1cyclictest0-21swapper/207:27:522
2829657991210,1cyclictest0-21swapper/207:22:522
2649091124,2phc2sys0-21swapper/308:55:023
2649091120,2phc2sys0-21swapper/312:32:273
2649091120,1phc2sys0-21swapper/310:31:213
2649091120,1phc2sys0-21swapper/309:10:173
2649091120,1phc2sys0-21swapper/308:43:093
282965799119,1cyclictest0-21swapper/211:51:092
2649091111,4phc2sys0-21swapper/308:49:483
2649091111,3phc2sys0-21swapper/307:34:563
2649091111,3phc2sys0-21swapper/307:24:473
2649091111,2phc2sys0-21swapper/308:30:003
2649091110,3phc2sys0-21swapper/312:20:003
2649091110,2phc2sys0-21swapper/312:09:063
2649091110,2phc2sys0-21swapper/311:33:433
2649091110,2phc2sys0-21swapper/311:24:213
2649091110,2phc2sys0-21swapper/311:04:413
2649091110,2phc2sys0-21swapper/311:04:403
2649091110,2phc2sys0-21swapper/310:06:563
2649091110,2phc2sys0-21swapper/308:55:053
2649091110,2phc2sys0-21swapper/307:29:533
2649091110,1phc2sys0-21swapper/309:38:423
2649091110,1phc2sys0-21swapper/308:17:143
2649091110,1phc2sys0-21swapper/308:17:143
2649091110,1phc2sys0-21swapper/308:06:043
2649091110,1phc2sys0-21swapper/308:04:573
2649091110,1phc2sys0-21swapper/307:19:153
2649091101,1phc2sys0-21swapper/307:39:553
2649091100,3phc2sys0-21swapper/310:35:583
2649091100,3phc2sys0-21swapper/307:14:553
2649091100,2phc2sys0-21swapper/311:26:493
2649091100,2phc2sys0-21swapper/311:14:383
2649091100,1phc2sys0-21swapper/312:01:223
264909194,2phc2sys0-21swapper/308:14:543
264909191,4phc2sys0-21swapper/308:39:483
264909191,2phc2sys0-21swapper/311:35:553
264909191,2phc2sys0-21swapper/308:30:053
264909190,2phc2sys0-21swapper/311:55:073
264909190,2phc2sys0-21swapper/311:45:253
264909190,2phc2sys0-21swapper/311:43:013
264909190,2phc2sys0-21swapper/310:21:513
264909190,2phc2sys0-21swapper/307:59:513
264909190,2phc2sys0-21swapper/307:44:523
264909180,1phc2sys0-21swapper/307:50:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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