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2026-07-16 - 07:51
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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
Compare latency of primary with shadow system
Characteristics of the highest latencies:
System rackeslot8.osadl.org (updated Thu Jul 16, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3289594992824,1cyclictest0-21swapper/300:10:003
3289594992724,1cyclictest0-21swapper/300:20:013
3289594992723,1cyclictest0-21swapper/323:20:163
3289594992624,1cyclictest0-21swapper/323:55:003
3289594992421,1cyclictest0-21swapper/322:35:173
3289594992320,1cyclictest0-21swapper/322:10:163
3289594992320,1cyclictest0-21swapper/320:14:593
3289594992320,1cyclictest0-21swapper/300:00:173
3289594992320,1cyclictest0-21swapper/300:00:173
3289594992219,1cyclictest0-21swapper/323:30:193
3289594992118,1cyclictest0-21swapper/323:40:173
3289594992118,1cyclictest0-21swapper/323:25:183
3289594992118,1cyclictest0-21swapper/323:10:233
3289594992118,1cyclictest0-21swapper/322:40:233
3289594992118,1cyclictest0-21swapper/322:00:103
3289594992111,7cyclictest35967782sleep322:45:153
328959499211,15cyclictest3571694-21taskset22:27:363
328959499211,15cyclictest3554552-21chrt22:15:233
328959499211,15cyclictest3554552-21chrt22:15:223
3289594992017,1cyclictest0-21swapper/323:10:013
3289594992017,1cyclictest0-21swapper/322:00:003
3289594992016,2cyclictest3426872-21turbostat20:55:003
3289594992016,1cyclictest0-21swapper/319:40:143
328959499201,14cyclictest3698875-21taskset23:50:013
328959499201,14cyclictest3675421-21chrt23:35:133
328959499201,14cyclictest3454047-21taskset21:14:573
3289594991917,1cyclictest0-21swapper/322:20:133
3289594991917,1cyclictest0-21swapper/300:20:113
3289594991916,1cyclictest0-21swapper/300:35:183
3289594991915,1cyclictest0-21swapper/320:20:173
328959499191,14cyclictest3493128-21taskset21:38:253
328959499191,14cyclictest3352855-21taskset19:55:193
328959499191,13cyclictest3446205-21turbostat21:10:013
3289594991910,6cyclictest35165892sleep321:52:503
328959499189,6cyclictest37377722sleep300:13:543
3289594991815,1cyclictest0-21swapper/323:00:103
3289594991815,1cyclictest0-21swapper/321:40:153
3289594991815,1cyclictest0-21swapper/321:30:183
3289594991815,1cyclictest0-21swapper/321:20:243
3289594991815,1cyclictest0-21swapper/320:45:163
3289594991815,1cyclictest0-21swapper/320:15:213
328959499181,14cyclictest3361884-21taskset20:00:273
328959499181,14cyclictest3316596-21chrt19:25:243
328959499181,13cyclictest3712717-21taskset23:55:263
328959499181,13cyclictest3650361-21taskset23:17:133
328959499181,13cyclictest3611887-21taskset22:54:563
328959499181,13cyclictest3501923-21taskset21:45:033
328959499181,13cyclictest3459995-21taskset21:15:253
328959499181,13cyclictest3432948-21taskset20:55:363
328959499181,13cyclictest3368950-21taskset20:09:503
328959499181,13cyclictest3336999-21taskset19:45:123
328959499181,13cyclictest3329958-21taskset19:36:343
37452222171,9sleep13745230-21ssh00:17:341
3289594991714,1cyclictest0-21swapper/321:00:073
3289594991714,1cyclictest0-21swapper/320:40:233
3289594991714,1cyclictest0-21swapper/320:40:223
3289594991714,1cyclictest0-21swapper/320:35:163
3289594991713,1cyclictest0-21swapper/322:30:183
328959499171,13cyclictest3769585-21taskset00:34:423
328959499171,13cyclictest3619622-21taskset22:59:293
328959499171,13cyclictest3317690-21taskset19:30:053
328959499171,13cyclictest3304301-21taskset19:17:293
328959499171,13cyclictest3295832-21taskset19:13:373
328959499171,12cyclictest3754280-21taskset00:25:053
328959499171,12cyclictest3394965-21taskset20:30:063
336926521612,2sleep03369374-21cpuspeed_turbos20:10:120
33370012161,11sleep03337151-21df_inode19:45:140
328959499166,7cyclictest33943522sleep320:25:303
3289594991613,1cyclictest0-21swapper/319:20:063
328959499161,12cyclictest3539462-21taskset22:05:283
328959499161,12cyclictest3470298-21taskset21:25:103
328959499161,12cyclictest3349350-21taskset19:51:493
34808522141,6sleep23482615-21kthreadcore21:30:202
33753702141,2sleep00-21swapper/020:15:000
37296522131,9sleep13729656-21ssh00:08:081
37375502121,3sleep2222-21plymouthd00:13:132
36833352121,7sleep03683046-21sendmail-msp23:40:120
36486592120,4sleep23648946-21ssh23:15:212
36255312121,8sleep03619853-21sendmail-msp23:00:220
33726822120,8sleep23374256-21cat20:10:182
33625552120,3sleep20-21swapper/220:05:002
37232652110,8sleep03724200-21irqstats00:05:180
36809962110,8sleep13681140-21ssh23:35:271
36521862110,8sleep20-21swapper/223:20:172
35973942111,7sleep13598027-21kthreadcore22:45:171
35650382110,4sleep23565088-21/usr/sbin/munin22:25:122
35492732111,7sleep13549423-21df22:15:141
35492732111,7sleep13549423-21df22:15:131
35470462111,7sleep13547198-21unixbench-2d22:10:271
35324502110,2sleep0222-21plymouthd22:02:530
35015052111,7sleep03501511-21ssh21:44:320
35004892111,7sleep1222-21plymouthd21:41:421
34002722110,3sleep00-21swapper/020:30:240
33614562116,3sleep1872-21in:imuxsock20:00:231
33357182110,8sleep13330287-21sendmail-msp19:40:211
33052282115,4sleep1249-21jbd2/sda2-819:20:171
37769122100,7sleep23776918-21ssh00:38:082
37517382102,4sleep23751775-21ntpq00:20:232
36735012100,1sleep20-21swapper/223:30:442
36380232100,1sleep10-21swapper/123:10:161
35821952105,2sleep13583409-21kthreadcore22:35:181
35654112105,2sleep10-21swapper/122:25:161
35571482101,5sleep23556834-21sendmail-msp22:20:122
35480102100,4sleep20-21swapper/222:12:252
35269842101,6sleep23527499-21cat22:00:192
34755842100,7sleep13475616-21ntpq21:25:211
34454552101,6sleep10-21swapper/121:05:281
33963732100,7sleep13397588-21kthreadcore20:30:171
33885722102,4sleep13388574-21apt-get20:25:111
33628262100,7sleep13362847-21cat20:05:121
33558842101,6sleep2222-21plymouthd19:57:512
33191572100,7sleep03320807-21kthreadcore19:30:180
33126582100,7sleep03313855-21cat19:25:180
32832842101,4sleep10-21swapper/119:05:141
3754318291,4sleep13754353-21apt-get00:25:121
3716225290,6sleep13716987-21kthreadcore00:00:181
3716225290,6sleep13716987-21kthreadcore00:00:171
3681615292,4sleep23617764-21kworker/u16:3+xprtiod23:36:172
3651710292,4sleep186188-21systemd-journal23:20:131
3619248290,1sleep1222-21plymouthd22:58:321
3603447290,2sleep0222-21plymouthd22:48:200
3588615291,6sleep23588352-21sendmail-msp22:40:082
3565207291,5sleep03565410-21hddtemp_smartct22:25:150
3548183290,5sleep0222-21plymouthd22:12:590
3523999290,6sleep13524005-21ssh21:56:291
3507230291,4sleep13507280-21ssh21:45:231
3502933291,5sleep03503762-21kthreadcore21:45:180
3492344292,4sleep13485233-21kworker/u16:2+xprtiod21:36:211
3454909290,6sleep13455418-21irqrtprio21:15:151
3452678290,1sleep1222-21plymouthd21:11:111
3433297290,6sleep23433478-21cat21:00:012
3410998290,6sleep13412589-21kthreadcore20:40:201
3410998290,6sleep13412589-21kthreadcore20:40:201
3329945290,2sleep0222-21plymouthd19:36:240
3329924290,1sleep10-21swapper/119:36:091
3313856290,6sleep13315674-21kthreadcore19:25:191
3311256291,4sleep23311289-21apt-get19:25:122
3294998291,4sleep13295032-21ntpq19:10:221
3286058291,5sleep03287859-21cut19:05:210
3707019281,4sleep13707132-21/usr/sbin/munin23:55:121
3706377280,1sleep10-21swapper/123:54:371
3705275280,2sleep0222-21plymouthd23:51:190
3691280282,3sleep23691282-21apt-get23:45:122
3689791281,4sleep23689797-21ssh23:41:512
3643977281,4sleep03644063-21diskstats23:15:150
3642862281,4sleep23461666-21kworker/u16:1+rpciod23:13:112
3635237281,5sleep1222-21plymouthd23:08:541
3605843281,4sleep13607519-21cut22:50:171
3598101281,4sleep2222-21plymouthd22:45:182
3572910281,3sleep03572943-21apt-get22:30:110
3541088281,4sleep13541115-21munin-run22:10:001
3525072280,1sleep00-21swapper/021:59:290
3516951280,5sleep23516953-21ssh21:53:462
3515151281,3sleep13515193-21ntpq21:50:231
3493153280,1sleep00-21swapper/021:38:320
3485477283,3sleep1331ktimers/121:34:161
3472513281,4sleep23474145-21cut21:25:182
3462306281,4sleep13462341-21apt-get21:20:131
3454725281,4sleep03454908-21cat21:15:140
3453653280,1sleep00-21swapper/021:13:500
3439606281,4sleep0222-21plymouthd21:02:200
3434715282,3sleep10-21swapper/121:00:161
3432346281,4sleep03432382-21ntpq20:55:210
3426490280,5sleep244-21ksoftirqd/220:50:342
3408218280,5sleep23388022-21kworker/u16:1+ext4-rsv-conversion20:40:172
3408218280,5sleep23388022-21kworker/u16:1+ext4-rsv-conversion20:40:162
3406526281,4sleep13406567-21ntpq20:35:221
3394396280,1sleep20-21swapper/220:26:052
3393816281,3sleep03393854-21ntpq20:25:220
3387323281,4sleep13387363-21ntpq20:20:231
3382375281,4sleep20-21swapper/220:20:162
3376482280,5sleep13377237-21grep20:15:171
3356055281,4sleep03356116-21sendmail-msp20:00:020
3349599281,4sleep10-21swapper/119:55:001
3343857280,5sleep23344473-21irqrtprio19:50:162
3342283281,3sleep23342309-21ntpq19:45:242
3317700281,3sleep23317732-21apt-get19:30:122
3303499281,4sleep03303545-21ntpq19:15:190
3289350280,1sleep20-21swapper/219:09:282
3777188270,4sleep13777194-21ssh00:38:591
3768864270,1sleep10-21swapper/100:32:461
3767310271,3sleep03767407-21ntpq00:30:200
3754360270,3sleep20-21swapper/200:25:132
3746495271,4sleep13746655-21df_inode00:20:151
3746404270,4sleep087-1kworker/0:1H+kblockd00:20:060
3743973271,3sleep00-21swapper/000:15:250
3730664271,3sleep1222-21plymouthd00:10:111
3721303270,1sleep00-21swapper/000:01:530
3721303270,1sleep00-21swapper/000:01:520
3683375271,2sleep13683368-21apt-get23:40:131
3681784271,3sleep0222-21plymouthd23:36:430
3667158271,3sleep23667163-21cron23:30:002
3659708270,4sleep1222-21plymouthd23:25:141
3657053270,5sleep00-21swapper/023:20:240
3650688270,4sleep13461666-21kworker/u16:1+rpciod23:18:121
3637071271,4sleep03638022-21cut23:10:170
3628492270,4sleep03628709-21irqcore23:05:160
3624908271,3sleep13625339-21memory23:00:191
3618479270,1sleep20-21swapper/222:56:202
3617531271,3sleep03617576-21ntpq22:55:220
3605076270,5sleep03605839-21grep22:50:160
3604583271,3sleep23604736-21ssh22:50:142
3595072270,4sleep1222-21plymouthd22:41:471
3580800270,4sleep03580807-21/usr/sbin/munin22:35:130
3564507271,3sleep1222-21plymouthd22:24:361
3558576271,3sleep0222-21plymouthd22:20:170
3556081271,3sleep0222-21plymouthd22:18:090
3556081271,3sleep0222-21plymouthd22:18:090
3533552271,3sleep23533665-21cpuspeed_turbos22:05:122
3501946273,1sleep2222-21plymouthd21:45:122
3493998270,2sleep2222-21plymouthd21:40:102
3492725270,1sleep23492731-21ssh21:37:252
3483343271,3sleep03483487-21ntpq21:30:220
3476655270,1sleep00-21swapper/021:26:410
3462348271,3sleep20-21swapper/221:20:142
3448650270,4sleep23450295-21tr21:10:192
3435502271,3sleep20-21swapper/221:00:172
3426551270,1sleep00-21swapper/020:51:210
3419488271,3sleep1331ktimers/120:45:251
3414266271,3sleep23414268-21apt-get20:45:142
3407289271,3sleep0222-21plymouthd20:37:380
3404047271,4sleep23401383-21/usr/sbin/munin20:35:192
3377238270,4sleep23378953-21kthreadcore20:15:192
3362235271,3sleep0222-21plymouthd20:00:540
3310740270,1sleep00-21swapper/019:21:520
3310645271,3sleep2222-21plymouthd19:20:392
32895949971,3cyclictest0-21swapper/319:10:003
3776156260,4sleep0222-21plymouthd00:36:040
3762160261,2sleep20-21swapper/200:30:092
3760435260,3sleep0222-21plymouthd00:26:030
3741440260,4sleep23743240-21kthreadcore00:15:182
3731656260,3sleep03732140-21kthreadcore00:10:190
3728846260,1sleep20-21swapper/200:05:522
3716990262,2sleep23718257-21kthreadcore00:00:192
3716990262,2sleep23718257-21kthreadcore00:00:182
3714288260,3sleep0222-21plymouthd23:59:440
3705606260,3sleep23705612-21ssh23:52:332
3697976261,2sleep00-21swapper/023:47:570
3696531260,3sleep13696570-21ntp_states23:45:221
3674577260,3sleep10-21swapper/123:33:441
3660121260,3sleep03660820-21irqrtprio23:25:160
3634103260,1sleep20-21swapper/223:05:462
3626395260,2sleep2222-21plymouthd23:01:122
3596073260,1sleep00-21swapper/022:44:340
3588151260,3sleep2222-21plymouthd22:39:362
3572802260,3sleep23572664-21appstreamcli22:30:022
3555345260,1sleep20-21swapper/222:16:032
3555345260,1sleep20-21swapper/222:16:022
3540283261,2sleep00-21swapper/022:07:430
3532035260,3sleep13532041-21ssh22:01:411
3523773260,1sleep20-21swapper/221:55:542
3509873260,3sleep03510024-21df21:50:140
3455792260,3sleep23456728-21kthreadcore21:15:162
3446172261,2sleep20-21swapper/221:09:552
3445358261,2sleep00-21swapper/021:05:270
3429933261,2sleep10-21swapper/120:55:191
3419443260,4sleep03419487-21ld20:45:230
3382067263,1sleep00-21swapper/020:20:100
3368698260,1sleep00-21swapper/020:06:340
3362848261,2sleep20-21swapper/220:05:132
3345510261,2sleep00-21swapper/019:50:190
3332999261,2sleep20-21swapper/219:40:182
3304254260,3sleep2222-21plymouthd19:16:582
3293452260,3sleep2222-21plymouthd19:10:202
3712789250,2sleep23712795-21ssh23:55:372
3667540250,3sleep03667694-21df23:30:140
3572885250,2sleep10-21swapper/122:30:041
3467690250,2sleep00-21swapper/021:20:240
3420676250,2sleep10-21swapper/120:50:141
3413827250,2sleep0222-21plymouthd20:43:150
3413827250,2sleep0222-21plymouthd20:43:150
3400193250,3sleep20-21swapper/220:30:222
3375048251,2sleep10-21swapper/120:10:531
3355752250,2sleep1222-21plymouthd19:56:101
3337152251,2sleep13337264-21tune2fs19:45:151
3336344250,2sleep0222-21plymouthd19:40:330
3329957250,2sleep2222-21plymouthd19:36:342
3323482250,2sleep1222-21plymouthd19:30:431
3304146250,2sleep1222-21plymouthd19:15:331
3290705250,2sleep00-21swapper/019:10:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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