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2026-11-14 - 02:18
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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 Nov 13, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
298567321190,2sleep30-21swapper/309:51:073
30540112960,2sleep03053779-21kthreadcore10:31:050
30540112960,2sleep03053779-21kthreadcore10:31:050
27803702550,0sleep12780374-21tr07:36:061
2248291340,8phc2sys0-21swapper/309:45:433
2248291261,6phc2sys0-21swapper/312:05:443
2740234992113,3cyclictest3256126-21kthreadcore12:26:061
2740234992017,2cyclictest2797923-21idleruntime-cro07:50:011
2740234992015,2cyclictest2908451-21diskmemload10:18:001
2740234991916,2cyclictest24904-21JS08:47:301
2740234991916,2cyclictest0-21swapper/109:40:431
2740234991915,3cyclictest24903-21JS08:47:301
2248291190,6phc2sys0-21swapper/307:20:423
2248291190,2phc2sys0-21swapper/309:36:423
274023499181,9cyclictest773-21dbus-daemon10:35:021
274023499181,9cyclictest773-21dbus-daemon10:35:021
2740234991815,2cyclictest2806115-21ps07:56:041
274023499180,16cyclictest2825530-21cat08:10:001
2740235991715,1cyclictest0-21swapper/209:30:022
2740234991714,2cyclictest2961696-21systemd-run09:40:011
2740234991713,3cyclictest3247793-21kthreadcore12:21:051
2740234991713,3cyclictest2868043-21fschecks_time08:41:011
2740234991713,3cyclictest2831167-21kthreadcore08:11:071
2740234991713,3cyclictest2762640-21ptp4l-jitter07:21:091
2740234991712,4cyclictest1-21systemd09:20:031
2740234991712,3cyclictest3067865-21latency_hist10:40:021
2740234991711,2cyclictest81550irq/121-eno112:01:101
274023499170,12cyclictest3191531-21ssh11:50:091
2248291170,2phc2sys0-21swapper/311:29:283
2248291170,2phc2sys0-21swapper/310:54:573
2248291170,2phc2sys0-21swapper/308:35:413
274023599161,7cyclictest0-21swapper/207:45:432
2740235991613,1cyclictest0-21swapper/211:47:302
2740235991613,1cyclictest0-21swapper/207:20:012
2740235991610,4cyclictest2846979-21taskset08:26:012
2740234991613,2cyclictest3244331-21systemd-run12:20:021
2740234991613,2cyclictest3175048-21grep11:41:011
2740234991613,2cyclictest3140216-21sed11:21:061
2740234991613,2cyclictest3121973-21fschecks_time11:11:021
2740234991613,2cyclictest2948666-21kthreadcore09:31:061
2740234991613,2cyclictest2935726-21aten2.4-expect09:25:451
2740234991613,2cyclictest2908079-21unixbench_singl09:06:131
2740234991613,2cyclictest2740232-21cyclictest10:41:021
2740234991612,3cyclictest3272719-21ssh12:36:061
2740234991612,3cyclictest3001452-21kthreadcore10:01:071
2740234991612,3cyclictest2854898-21kthreadcore08:31:031
2740234991612,3cyclictest2834181-21kthreadcore08:16:041
2740234991612,3cyclictest2742083-21kthreadcore07:11:041
2740234991611,4cyclictest2753076-21kthreadcore07:16:061
2479898160,5rtkit-daemon3093083-21ssh10:52:470
2248291160,3phc2sys0-21swapper/311:05:243
2248291160,3phc2sys0-21swapper/309:43:393
2248291160,2phc2sys0-21swapper/312:33:353
2248291160,2phc2sys0-21swapper/310:10:443
274023599151,7cyclictest0-21swapper/211:00:432
2740235991512,1cyclictest0-21swapper/210:41:132
2740235991511,1cyclictest0-21swapper/211:41:092
2740234991512,2cyclictest3231930-21kthreadcore12:11:071
2740234991512,2cyclictest3186144-21ssh11:46:051
2740234991512,2cyclictest3077180-21head10:45:491
2740234991512,2cyclictest3047916-21runrttasks10:26:121
2740234991512,2cyclictest2740232-21cyclictest09:21:071
2740234991512,2cyclictest24904-21JS08:47:301
274023499151,1cyclictest0-21swapper/111:30:411
2740234991511,3cyclictest3221569-21kthreadcore12:06:061
2740234991511,3cyclictest3149254-21kthreadcore11:26:041
2740234991511,3cyclictest3138879-21kworker/u16:0+nfsiod11:39:351
2740234991511,3cyclictest3133432-21kthreadcore11:16:051
2740234991511,3cyclictest3103970-21cpuspeed_turbos11:01:001
2740234991511,3cyclictest3096237-21kthreadcore10:56:051
2740234991511,3cyclictest3087360-21kthreadcore10:51:051
2740234991511,3cyclictest3021154-21phc2sys-jitter10:11:111
2740234991511,3cyclictest3009730-21kthreadcore10:06:081
2740234991511,3cyclictest2974524-21kthreadcore09:46:061
2740234991511,3cyclictest2879225-21kthreadcore08:46:051
2740234991511,3cyclictest2866426-21timerandwakeup08:36:121
2740234991511,3cyclictest2842768-21kthreadcore08:21:071
2740234991511,3cyclictest2815148-21kthreadcore08:01:071
2740234991511,3cyclictest2784707-21cpu07:41:001
2740234991511,3cyclictest2768364-21kthreadcore07:26:051
274023499150,3cyclictest0-21swapper/109:54:041
2248291155,2phc2sys0-21swapper/307:59:023
2248291151,2phc2sys0-21swapper/312:16:103
2248291150,4phc2sys0-21swapper/309:23:103
2740235991412,1cyclictest0-21swapper/210:50:022
2740235991411,1cyclictest0-21swapper/210:21:092
2740235991411,1cyclictest0-21swapper/208:41:092
2740235991411,1cyclictest0-21swapper/208:36:072
2740235991411,1cyclictest0-21swapper/208:21:012
2740235991411,1cyclictest0-21swapper/208:16:052
2740235991411,1cyclictest0-21swapper/207:21:052
2740234991411,2cyclictest3118359-21sendmail_mailqu11:06:091
2740234991411,2cyclictest3036171-21kthreadcore10:21:071
2740234991411,2cyclictest2888795-21sort08:56:011
2740234991411,2cyclictest2801351-21kthreadcore07:51:091
2740234991410,3cyclictest3203846-21kthreadcore11:56:061
2740234991410,3cyclictest2910288-21irqcore09:11:031
2740234991410,3cyclictest2898549-21kthreadcore09:01:061
2740234991410,3cyclictest2851845-21kthreadcore08:26:081
2740234991410,3cyclictest2771985-21kthreadcore07:31:061
2248291141,3phc2sys0-21swapper/309:11:113
2248291140,5phc2sys0-21swapper/310:33:013
2248291140,5phc2sys0-21swapper/310:33:013
2248291140,4phc2sys0-21swapper/309:32:423
2248291140,3phc2sys0-21swapper/310:39:123
2248291140,2phc2sys0-21swapper/312:13:073
2248291140,2phc2sys0-21swapper/310:22:313
2248291140,2phc2sys0-21swapper/308:41:133
2248291140,1phc2sys0-21swapper/310:19:563
2248291140,1phc2sys0-21swapper/308:12:053
274023599139,2cyclictest0-21swapper/208:55:532
274023599131,8cyclictest2986021-21taskset09:51:102
274023599131,1cyclictest0-21swapper/211:35:432
2740235991311,1cyclictest0-21swapper/208:46:062
2740235991311,1cyclictest0-21swapper/208:31:102
2740235991311,1cyclictest0-21swapper/208:01:072
2740235991310,1cyclictest0-21swapper/212:35:062
2740235991310,1cyclictest0-21swapper/212:25:012
2740235991310,1cyclictest0-21swapper/211:21:102
2740235991310,1cyclictest0-21swapper/211:11:072
2740235991310,1cyclictest0-21swapper/210:51:002
2740235991310,1cyclictest0-21swapper/210:00:542
2740235991310,1cyclictest0-21swapper/209:46:072
2740235991310,1cyclictest0-21swapper/209:01:052
2740235991310,1cyclictest0-21swapper/208:51:052
274023599130,8cyclictest0-21swapper/212:01:052
274023599130,8cyclictest0-21swapper/207:55:472
2479898130,9rtkit-daemon63313-21gmain07:56:140
2479898130,8rtkit-daemon81550irq/121-eno111:59:170
2479898130,8rtkit-daemon2860125-21packagekitd08:35:030
2479898130,8rtkit-daemon1-21systemd10:43:100
2248291132,3phc2sys0-21swapper/311:39:563
2248291130,4phc2sys0-21swapper/310:55:433
2248291130,3phc2sys0-21swapper/308:50:443
2248291130,2phc2sys0-21swapper/311:43:493
2248291130,2phc2sys0-21swapper/307:41:223
2248291130,2phc2sys0-21swapper/307:30:443
2248291130,2phc2sys0-21swapper/307:09:353
274023599129,1cyclictest0-21swapper/212:26:412
274023599129,1cyclictest0-21swapper/212:16:282
274023599129,1cyclictest0-21swapper/212:06:142
274023599129,1cyclictest0-21swapper/209:57:122
274023599129,1cyclictest0-21swapper/209:41:062
274023599129,1cyclictest0-21swapper/207:29:092
274023599124,4cyclictest0-21swapper/207:40:432
274023599120,8cyclictest0-21swapper/211:55:432
274023599120,8cyclictest0-21swapper/209:05:452
274023599120,6cyclictest0-21swapper/211:25:432
274023499123,4cyclictest2740275-21cat07:10:011
2479898120,7rtkit-daemon3027920-21grep10:16:060
2479898120,4rtkit-daemon795-21mta-sts-daemon11:31:200
2479898120,3rtkit-daemon2908451-21diskmemload12:26:350
2479898120,3rtkit-daemon0-21swapper/010:11:130
2479898120,2rtkit-daemon0-21swapper/012:11:270
2479898120,1rtkit-daemon900-1atopacctd07:13:400
2248291121,5phc2sys0-21swapper/307:50:463
2248291121,2phc2sys0-21swapper/310:25:433
2248291120,2phc2sys0-21swapper/309:27:553
2248291120,2phc2sys0-21swapper/308:05:583
2248291120,2phc2sys0-21swapper/307:28:033
274023599119,1cyclictest0-21swapper/212:30:482
274023599119,1cyclictest0-21swapper/211:16:032
274023599119,1cyclictest0-21swapper/210:57:372
274023599119,1cyclictest0-21swapper/210:26:542
274023599119,1cyclictest0-21swapper/210:19:442
274023599119,1cyclictest0-21swapper/209:15:132
274023599119,1cyclictest0-21swapper/209:11:072
274023599119,1cyclictest0-21swapper/208:11:052
274023599118,1cyclictest0-21swapper/212:10:472
274023599118,1cyclictest0-21swapper/211:31:252
274023599118,1cyclictest0-21swapper/210:31:052
274023599118,1cyclictest0-21swapper/210:31:052
274023599118,1cyclictest0-21swapper/210:10:202
274023599118,1cyclictest0-21swapper/208:06:052
274023599118,1cyclictest0-21swapper/207:51:142
274023599117,2cyclictest0-21swapper/210:06:102
274023599113,7cyclictest0-21swapper/211:50:182
274023599113,5cyclictest0-21swapper/207:35:442
274023599112,6cyclictest0-21swapper/209:36:382
274023599112,4cyclictest0-21swapper/207:15:022
274023599111,7cyclictest2953069-21taskset09:35:032
274023599111,7cyclictest29341652sleep209:23:132
274023599111,7cyclictest2740359-21chrt07:10:022
2479898110,7rtkit-daemon24892-21gnome-shell08:56:090
2479898110,6rtkit-daemon2829952-21cut08:11:070
2479898110,6rtkit-daemon1202-21snmpd11:41:250
2248291112,2phc2sys0-21swapper/311:21:123
2248291112,2phc2sys0-21swapper/310:47:253
2248291111,5phc2sys0-21swapper/308:30:423
2248291111,3phc2sys0-21swapper/309:06:073
2248291111,3phc2sys0-21swapper/309:01:023
2248291111,3phc2sys0-21swapper/308:56:053
2248291111,2phc2sys0-21swapper/312:39:123
2248291110,4phc2sys0-21swapper/309:59:213
2248291110,2phc2sys0-21swapper/311:55:433
2248291110,2phc2sys0-21swapper/310:00:063
2248291110,1phc2sys0-21swapper/308:23:353
30140752101,3sleep03014085-21ssh10:08:450
29112702101,7sleep02912804-21tr09:11:050
274023599108,1cyclictest0-21swapper/211:09:482
274023599101,6cyclictest3059160-21chrt10:35:032
274023599101,6cyclictest2770604-21chrt07:30:182
2479898100,6rtkit-daemon24937-21gmain08:44:050
2479898100,5rtkit-daemon3133701-21cut11:16:050
2479898100,5rtkit-daemon3095681-21hddtemp_smartct10:56:020
2479898100,5rtkit-daemon24892-21gnome-shell10:47:090
2479898100,4rtkit-daemon3226767-21munin-run12:10:030
2479898100,4rtkit-daemon3209443-21apt-get12:00:420
2479898100,3rtkit-daemon2747218-21munin-node08:27:240
2479898100,2rtkit-daemon81550irq/121-eno111:25:530
2479898100,2rtkit-daemon2908451-21diskmemload09:18:370
2479898100,2rtkit-daemon0-21swapper/008:17:250
2479898100,2rtkit-daemon0-21swapper/007:36:270
2248291101,4phc2sys0-21swapper/307:35:433
2248291101,3phc2sys0-21swapper/312:00:043
2248291101,2phc2sys0-21swapper/312:22:203
2248291101,2phc2sys0-21swapper/311:31:023
2248291101,2phc2sys0-21swapper/311:16:073
2248291101,2phc2sys0-21swapper/310:41:083
2248291101,2phc2sys0-21swapper/308:01:113
2248291101,2phc2sys0-21swapper/307:20:023
2248291100,2phc2sys0-21swapper/312:26:133
2248291100,2phc2sys0-21swapper/311:46:173
2248291100,2phc2sys0-21swapper/311:13:153
2248291100,2phc2sys0-21swapper/311:00:443
2248291100,2phc2sys0-21swapper/310:05:433
2248291100,2phc2sys0-21swapper/308:46:483
2248291100,2phc2sys0-21swapper/308:25:443
2248291100,1phc2sys0-21swapper/308:19:303
3118929290,4sleep03118941-21ssh11:06:290
2854138291,6sleep02854262-21fw_packets08:31:010
2791428290,5sleep30-21swapper/307:45:433
2734582291,6sleep02735372-21grep07:06:040
247989890,5rtkit-daemon795-21mta-sts-daemon07:33:000
247989890,5rtkit-daemon3271362-21ssh12:35:500
247989890,5rtkit-daemon3126245-21kthreadcore11:11:070
247989890,5rtkit-daemon2972586-21kthreadcore09:46:050
247989890,5rtkit-daemon1392-21ntpd08:04:490
247989890,5rtkit-daemon1392-21ntpd07:54:510
247989890,4rtkit-daemon795-21mta-sts-daemon12:18:150
247989890,4rtkit-daemon795-21mta-sts-daemon10:25:150
247989890,4rtkit-daemon795-21mta-sts-daemon10:21:520
247989890,4rtkit-daemon795-21mta-sts-daemon09:59:230
247989890,4rtkit-daemon795-21mta-sts-daemon09:35:040
247989890,4rtkit-daemon3183260-21ssh11:45:530
247989890,4rtkit-daemon2929023-21kthreadcore09:21:050
247989890,4rtkit-daemon2908451-21diskmemload10:03:490
247989890,4rtkit-daemon1202-21snmpd12:30:330
247989890,4rtkit-daemon1202-21snmpd11:21:010
247989890,4rtkit-daemon1202-21snmpd09:51:360
247989890,3rtkit-daemon2901954-21apt-get09:05:440
247989890,2rtkit-daemon0-21swapper/011:00:390
224829191,2phc2sys0-21swapper/311:50:583
224829191,2phc2sys0-21swapper/309:15:053
224829191,2phc2sys0-21swapper/307:15:013
2944970281,4sleep02945175-21diskstats09:31:010
2942204281,5sleep01220-21sshd09:26:280
2788945281,4sleep02789997-21memory07:41:070
247989880,4rtkit-daemon795-21mta-sts-daemon09:04:360
247989880,4rtkit-daemon795-21mta-sts-daemon07:49:030
247989880,4rtkit-daemon63313-21gmain11:36:580
247989880,4rtkit-daemon63313-21gmain08:21:580
247989880,4rtkit-daemon421-21systemd-udevd08:05:100
247989880,4rtkit-daemon2884752-21kthreadcore08:51:060
247989880,4rtkit-daemon2747218-21munin-node09:41:460
247989880,4rtkit-daemon2747218-21munin-node07:16:460
247989880,4rtkit-daemon25113-21gsd-housekeepin07:21:240
247989880,3rtkit-daemon795-21mta-sts-daemon08:46:510
247989880,3rtkit-daemon2908451-21diskmemload10:36:500
247989880,3rtkit-daemon2764571-21hddtemp_smartct07:26:010
247989870,3rtkit-daemon2747218-21munin-node12:20:070
3193057261,3sleep03193761-21kthreadcore11:51:060
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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