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2026-04-17 - 19:01
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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 all highest latencies:
System rackeslot2.osadl.org (updated Fri Apr 17, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
413555921530,1sleep04135557-21ssh09:42:530
418662021120,2sleep04186585-21ssh10:15:560
5945721000,1sleep10-21swapper/111:00:541
40810962380,2sleep14081097-21kthreadcore09:05:541
39620442320,2sleep20-21swapper/207:30:532
3930574992617,5cyclictest0-21swapper/008:20:000
3930574992614,11cyclictest1290-21dbus-daemon09:35:000
3930576992421,1cyclictest0-21swapper/211:55:022
3930574992414,6cyclictest101416-21irqcore11:30:520
3930576992320,1cyclictest0-21swapper/208:45:012
393057499227,6cyclictest0-21swapper/010:45:450
3930574992215,6cyclictest85938-21cstates11:20:480
3930575992118,2cyclictest4166358-21systemd10:05:011
3930575992118,2cyclictest1290-21dbus-daemon09:20:011
3930575992113,4cyclictest3841370-21avahi-daemon10:30:011
3930575992113,4cyclictest3841370-21avahi-daemon10:30:011
3930574992112,8cyclictest4147035-21kthreadcore09:50:530
3930574992112,1cyclictest25099-21ssh10:40:450
3930576992017,1cyclictest0-21swapper/210:15:002
3930575992017,2cyclictest4045750-21perf08:40:001
3930575992017,2cyclictest1-21systemd07:20:011
3930575992011,4cyclictest0-21swapper/112:20:541
3930574992017,2cyclictest47054-21latency_hist10:55:000
3930574992013,6cyclictest3945919-21aten2.4-expect07:20:470
3930574992010,6cyclictest0-21swapper/011:30:010
3930574992010,6cyclictest0-21swapper/011:00:580
3930574992010,6cyclictest0-21swapper/010:00:020
393057699196,5cyclictest0-21swapper/207:10:462
3930576991916,1cyclictest0-21swapper/212:20:002
3930576991916,1cyclictest0-21swapper/211:15:022
3930576991916,1cyclictest0-21swapper/209:26:012
3930575991916,2cyclictest4134567-21mailstats09:40:581
3930575991916,2cyclictest4064634-21gpgconf08:55:011
3930575991916,2cyclictest3983279-21latency_hist07:50:011
3930575991916,2cyclictest0-21swapper/111:15:011
3930575991915,3cyclictest3824565-21in:imuxsock10:10:011
3930575991912,2cyclictest501rcuop/209:58:111
3930575991910,4cyclictest0-21swapper/112:15:011
393057499195,12cyclictest3945397-21turbostat07:20:010
3930574991916,2cyclictest1-21systemd12:15:010
3930574991916,2cyclictest0-21swapper/009:30:000
3930574991911,7cyclictest0-21swapper/010:10:530
3930574991911,7cyclictest0-21swapper/009:25:010
3930574991910,5cyclictest133510-21kthreadcore11:50:540
383433398190,3rtkit-daemon3851702-21mta-sts-daemon07:43:111
2649091190,2phc2sys0-21swapper/310:15:003
39570592180,3sleep0191rcu_preempt07:25:580
3930576991816,1cyclictest0-21swapper/207:15:032
3930576991815,1cyclictest0-21swapper/210:20:002
3930576991812,4cyclictest4064797-21chrt08:55:012
3930575991816,1cyclictest107415-21dump-pmu-power11:35:001
3930575991815,2cyclictest4106358-21wc09:25:001
3930575991812,5cyclictest47870-21cpuspeed_turbos10:55:471
3930575991811,3cyclictest0-21swapper/112:35:021
393057499186,6cyclictest0-21swapper/009:15:010
393057499183,5cyclictest491rcuog/212:35:320
3930574991815,2cyclictest4143968-21latency_hist09:50:020
3930574991815,2cyclictest3937290-21latency_hist07:15:020
3930574991815,2cyclictest169254-21irqcore12:15:510
3930574991815,2cyclictest158322-21head12:05:570
3930574991815,2cyclictest145128-21sendmail12:00:010
3930574991815,2cyclictest1326-21systemd-logind09:10:000
3930574991815,2cyclictest113424-21timerandwakeup11:36:000
3930574991814,2cyclictest0-21swapper/009:40:010
3930574991813,1cyclictest24806-21kworker/u16:0-events_unbound11:18:280
3930574991811,4cyclictest4058745-21aten2.4-expect08:50:450
3930576991715,1cyclictest0-21swapper/211:20:012
3930576991714,1cyclictest0-21swapper/212:00:562
3930576991714,1cyclictest0-21swapper/212:00:562
3930576991714,1cyclictest0-21swapper/210:00:002
3930576991713,2cyclictest0-21swapper/208:20:572
393057599178,3cyclictest501rcuop/208:48:331
393057599178,3cyclictest3930569-21cyclictest11:21:351
393057599178,1cyclictest501rcuop/211:54:591
393057599176,5cyclictest3851702-21mta-sts-daemon11:57:061
3930575991714,2cyclictest341rcuc/112:10:001
3930575991714,2cyclictest1290-21dbus-daemon11:20:011
3930575991714,2cyclictest1290-21dbus-daemon09:50:011
3930575991714,2cyclictest122537-21apt-key11:45:011
3930575991714,2cyclictest0-21swapper/111:40:001
3930575991714,2cyclictest0-21swapper/111:30:011
3930575991714,2cyclictest0-21swapper/109:00:011
3930575991713,3cyclictest4045787-21kworker/u16:3+nfsiod10:38:241
3930575991711,2cyclictest3850026-21kworker/1:2+events_freezable07:29:581
3930575991711,2cyclictest0-21swapper/112:20:001
393057599170,3cyclictest39339-21ssh10:49:221
393057499179,7cyclictest0-21swapper/011:15:010
393057499177,6cyclictest0-21swapper/011:05:520
393057499175,1cyclictest0-21swapper/008:45:460
393057499172,6cyclictest4173665-21awk10:10:000
3930574991714,2cyclictest4072113-21grep09:00:500
3930574991714,2cyclictest3964244-21systemd07:35:000
3930574991714,2cyclictest0-21swapper/011:45:010
3930574991712,1cyclictest0-21swapper/010:20:450
3930574991711,5cyclictest3851703-21mta-sts-daemon10:04:030
2649091171,9phc2sys0-21swapper/308:15:473
2649091170,2phc2sys0-21swapper/311:24:053
2649091170,2phc2sys0-21swapper/309:57:553
393057699162,8cyclictest0-21swapper/207:49:592
3930576991614,1cyclictest0-21swapper/209:40:542
3930576991614,1cyclictest0-21swapper/209:20:522
3930576991613,1cyclictest0-21swapper/212:30:002
3930576991613,1cyclictest0-21swapper/211:07:342
3930576991613,1cyclictest0-21swapper/210:55:562
3930576991613,1cyclictest0-21swapper/207:10:012
393057599169,1cyclictest501rcuop/210:53:371
393057599168,1cyclictest501rcuop/209:12:571
393057599167,3cyclictest501rcuop/208:21:361
393057599167,3cyclictest501rcuop/208:11:301
3930575991613,2cyclictest68125-21grep11:05:591
3930575991613,2cyclictest4128888-21ssh09:40:011
3930575991613,2cyclictest4072082-21gltestperf09:00:501
3930575991613,2cyclictest3851704-21mta-sts-daemon10:24:301
3930575991613,2cyclictest3851698-21mta-sts-daemon09:25:561
3930575991613,2cyclictest184002-21sh12:25:511
3930575991613,2cyclictest10308-21aten_repower_vo10:30:481
393057499168,4cyclictest0-21swapper/009:15:520
3930574991614,1cyclictest4001982-21cron08:05:000
3930574991613,2cyclictest3969690-21sendmail_mailst07:35:570
3930574991613,2cyclictest3969690-21sendmail_mailst07:35:570
3930574991613,2cyclictest182713-21systemd-run12:25:000
3930574991613,2cyclictest17089-21cron10:35:000
3930574991612,3cyclictest47891-21cpuspeed_turbos10:55:470
3930574991611,4cyclictest197618-21perf12:35:000
3930574991610,4cyclictest3851704-21mta-sts-daemon10:35:290
393057499160,11cyclictest2489-21ssh10:25:130
393057499160,11cyclictest2489-21ssh10:25:130
2649091163,2phc2sys0-21swapper/310:40:223
2649091160,3phc2sys0-21swapper/311:05:303
2649091160,2phc2sys0-21swapper/312:17:133
2649091160,2phc2sys0-21swapper/310:29:183
2649091160,2phc2sys0-21swapper/310:29:183
2649091160,2phc2sys0-21swapper/310:20:203
2649091160,2phc2sys0-21swapper/310:19:403
3930576991513,1cyclictest0-21swapper/211:45:012
3930576991513,1cyclictest0-21swapper/210:45:012
3930576991513,1cyclictest0-21swapper/209:35:552
3930576991512,1cyclictest0-21swapper/212:40:012
3930576991512,1cyclictest0-21swapper/212:31:012
3930576991512,1cyclictest0-21swapper/212:10:542
3930576991512,1cyclictest0-21swapper/211:47:312
3930576991512,1cyclictest0-21swapper/211:33:412
3930576991512,1cyclictest0-21swapper/210:31:252
3930576991512,1cyclictest0-21swapper/210:05:512
3930576991512,1cyclictest0-21swapper/209:30:512
3930576991512,1cyclictest0-21swapper/209:15:522
3930576991512,1cyclictest0-21swapper/208:29:312
3930576991512,1cyclictest0-21swapper/208:00:002
3930576991511,2cyclictest0-21swapper/211:39:382
3930576991511,2cyclictest0-21swapper/211:03:212
3930576991511,2cyclictest0-21swapper/209:04:252
3930576991510,3cyclictest0-21swapper/209:46:002
393057699150,1cyclictest0-21swapper/212:06:202
393057599159,1cyclictest501rcuop/210:40:271
393057599159,1cyclictest501rcuop/210:10:081
393057599159,1cyclictest501rcuop/209:31:561
393057599157,5cyclictest197691-21kworker/u16:0-rpciod12:39:391
393057599154,3cyclictest4182530-21if_enp1s010:15:511
3930575991513,1cyclictest4145257-21irqcore09:50:511
3930575991512,2cyclictest4028624-21kernelversion08:25:531
3930575991512,2cyclictest3964242-21systemd-run07:35:001
3930575991512,2cyclictest3840882-21snmpd11:47:331
3930575991512,2cyclictest148654-21kthreadcore12:00:521
3930575991512,2cyclictest148654-21kthreadcore12:00:521
3930575991512,2cyclictest1290-21dbus-daemon07:25:011
3930575991511,3cyclictest3968552-21kthreadcore07:35:541
3930575991511,3cyclictest3968552-21kthreadcore07:35:541
3930575991511,1cyclictest601rcuop/307:54:351
393057499156,5cyclictest0-21swapper/007:55:490
393057499155,5cyclictest0-21swapper/008:41:570
3930574991512,2cyclictest4002505-21runrttasks08:05:470
3930574991512,2cyclictest3851704-21mta-sts-daemon08:25:580
3930574991512,2cyclictest150987-21mailstats12:00:560
3930574991512,2cyclictest150987-21mailstats12:00:560
3930574991511,3cyclictest4071131-21systemd-run09:00:010
3930574991511,3cyclictest3979933-21kthreadcore07:45:520
2649091150,5phc2sys0-21swapper/309:26:013
2649091150,2phc2sys0-21swapper/311:48:353
3930576991412,1cyclictest0-21swapper/209:50:422
3930576991412,1cyclictest0-21swapper/207:40:532
3930576991411,1cyclictest0-21swapper/212:20:482
3930576991411,1cyclictest0-21swapper/211:55:262
3930576991411,1cyclictest0-21swapper/210:35:482
3930576991411,1cyclictest0-21swapper/208:35:202
3930576991410,2cyclictest0-21swapper/211:20:522
3930576991410,2cyclictest0-21swapper/210:50:552
393057599143,1cyclictest134050irq/121-eno108:05:531
3930575991411,2cyclictest3989945-21aten_repower_fr07:55:491
3930575991411,2cyclictest351ktimers/108:15:491
3930575991410,3cyclictest3934732-21kthreadcore07:10:541
3930575991410,1cyclictest601rcuop/308:02:321
393057499147,4cyclictest4008717-21aten2.4-expect08:10:480
3930574991411,2cyclictest4034925-21kthreadcore08:30:540
3930574991411,2cyclictest3936877-21munin-node08:35:120
3930574991411,2cyclictest123547-21cpuspeed_turbos11:45:470
393057499140,9cyclictest185164-21cut12:25:540
2649091140,2phc2sys0-21swapper/312:02:183
2649091140,2phc2sys0-21swapper/312:02:183
2649091140,2phc2sys0-21swapper/310:09:013
2649091140,2phc2sys0-21swapper/309:45:473
2649091140,1phc2sys0-21swapper/307:22:103
393057699139,2cyclictest0-21swapper/211:25:552
393057699139,2cyclictest0-21swapper/208:55:512
393057699135,2cyclictest0-21swapper/209:05:472
3930576991311,1cyclictest0-21swapper/210:45:472
3930576991311,1cyclictest0-21swapper/208:45:462
3930576991311,1cyclictest0-21swapper/208:15:532
3930576991311,1cyclictest0-21swapper/207:55:002
3930576991310,1cyclictest0-21swapper/210:25:532
3930576991310,1cyclictest0-21swapper/210:25:532
3930576991310,1cyclictest0-21swapper/210:20:502
3930576991310,1cyclictest0-21swapper/209:10:332
3930576991310,1cyclictest0-21swapper/207:25:542
393057599139,3cyclictest3930687-21systemd-run07:10:021
393057599139,1cyclictest601rcuop/308:41:071
3930575991310,2cyclictest4034226-21fschecks_time08:30:501
3930574991310,2cyclictest4025499-21kthreadcore08:20:550
3930574991310,2cyclictest3984416-21if_enp1s007:50:510
393057499130,8cyclictest3976430-21chrt07:41:570
2649091130,3phc2sys0-21swapper/310:30:543
2649091130,2phc2sys0-21swapper/311:59:373
2649091130,2phc2sys0-21swapper/311:15:053
2649091130,2phc2sys0-21swapper/311:11:563
2649091130,2phc2sys0-21swapper/310:46:353
2649091130,2phc2sys0-21swapper/310:04:093
2649091130,2phc2sys0-21swapper/309:53:313
2649091130,2phc2sys0-21swapper/309:44:173
2649091130,1phc2sys0-21swapper/312:38:303
393057699126,2cyclictest0-21swapper/208:00:472
393057699123,5cyclictest0-21swapper/208:05:462
393057699123,3cyclictest0-21swapper/208:10:472
3930576991210,1cyclictest0-21swapper/210:00:492
3930576991210,1cyclictest0-21swapper/208:30:482
3930576991210,1cyclictest0-21swapper/207:20:542
393057499129,2cyclictest1296-21polkitd07:10:010
2649091124,2phc2sys0-21swapper/311:41:023
2649091122,3phc2sys0-21swapper/307:59:373
2649091121,6phc2sys0-21swapper/307:05:463
2649091120,3phc2sys0-21swapper/311:31:123
2649091120,3phc2sys0-21swapper/309:05:583
2649091120,2phc2sys0-21swapper/312:33:113
2649091120,2phc2sys0-21swapper/310:54:113
2649091120,2phc2sys0-21swapper/309:34:273
2649091120,2phc2sys0-21swapper/308:45:463
2649091120,2phc2sys0-21swapper/308:30:473
393057699119,1cyclictest0-21swapper/207:35:512
393057699119,1cyclictest0-21swapper/207:35:512
2649091112,2phc2sys0-21swapper/312:23:263
2649091111,2phc2sys0-21swapper/311:00:463
2649091110,3phc2sys0-21swapper/307:50:473
2649091110,2phc2sys0-21swapper/312:25:463
2649091110,2phc2sys0-21swapper/307:29:593
2649091110,1phc2sys0-21swapper/310:58:173
2649091103,3phc2sys0-21swapper/311:35:563
2649091102,2phc2sys0-21swapper/311:50:563
2649091102,2phc2sys0-21swapper/309:03:013
2649091101,2phc2sys0-21swapper/311:25:473
2649091101,2phc2sys0-21swapper/310:35:453
2649091101,2phc2sys0-21swapper/308:40:533
2649091101,2phc2sys0-21swapper/307:35:493
2649091101,2phc2sys0-21swapper/307:35:493
2649091100,2phc2sys0-21swapper/312:13:523
2649091100,2phc2sys0-21swapper/312:09:553
2649091100,2phc2sys0-21swapper/308:55:363
2649091100,2phc2sys0-21swapper/308:00:463
2649091100,2phc2sys0-21swapper/307:35:003
2649091100,2phc2sys0-21swapper/307:20:013
2649091100,1phc2sys0-21swapper/309:23:213
2649091100,1phc2sys0-21swapper/309:19:103
264909191,3phc2sys0-21swapper/308:10:473
264909191,2phc2sys0-21swapper/308:36:003
264909191,1phc2sys0-21swapper/307:45:033
264909190,2phc2sys0-21swapper/309:10:553
264909190,2phc2sys0-21swapper/308:50:473
264909190,2phc2sys0-21swapper/308:25:543
264909190,2phc2sys0-21swapper/308:25:023
264909190,2phc2sys0-21swapper/308:05:593
264909190,2phc2sys0-21swapper/307:40:383
264909190,2phc2sys0-21swapper/307:10:553
264909190,1phc2sys0-21swapper/309:35:073
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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