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2026-07-30 - 15:11
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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 792 highest latencies:
System rackeslot8.osadl.org (updated Thu Jul 30, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
343631523010,4sleep03415294-21kworker/u16:4-events_unbound22:00:200
32912142620,1sleep10-21swapper/120:20:181
3196784993532,1cyclictest0-21swapper/300:10:003
3196784993431,1cyclictest0-21swapper/319:50:013
3196784992825,1cyclictest0-21swapper/323:40:103
3196784992825,1cyclictest0-21swapper/319:40:013
3196784992724,1cyclictest0-21swapper/321:45:253
36261252260,3sleep13626105-21ntp_states00:00:291
3196784992623,1cyclictest0-21swapper/319:40:163
3196784992523,1cyclictest0-21swapper/323:20:013
3196784992421,1cyclictest0-21swapper/322:40:223
3196784992320,1cyclictest0-21swapper/322:40:003
3196784992320,1cyclictest0-21swapper/322:00:263
3196784992320,1cyclictest0-21swapper/321:40:163
3196784992118,1cyclictest0-21swapper/323:20:183
319678499211,15cyclictest3461227-21taskset22:15:263
319678499202,13cyclictest3652118-21taskset00:20:073
3196784992017,1cyclictest0-21swapper/323:05:173
319678499201,13cyclictest3518527-21chrt22:55:163
3196784991916,1cyclictest0-21swapper/323:50:133
3196784991916,1cyclictest0-21swapper/322:20:163
3196784991916,1cyclictest0-21swapper/321:20:113
3196784991916,1cyclictest0-21swapper/321:17:003
3196784991916,1cyclictest0-21swapper/320:40:213
3196784991916,1cyclictest0-21swapper/320:20:293
3196784991916,1cyclictest0-21swapper/320:15:133
3196784991916,1cyclictest0-21swapper/319:30:153
3196784991916,1cyclictest0-21swapper/300:10:193
319678499191,14cyclictest3453228-21taskset22:10:253
319678499191,14cyclictest3422508-21taskset21:51:453
319678499191,14cyclictest3351899-21taskset21:05:223
319678499191,14cyclictest3345631-21taskset21:00:253
319678499191,14cyclictest3281723-21taskset20:10:253
319678499191,14cyclictest3250546-21chrt19:50:133
3196784991815,1cyclictest0-21swapper/323:57:293
3196784991815,1cyclictest0-21swapper/323:35:003
3196784991815,1cyclictest0-21swapper/323:00:223
3196784991815,1cyclictest0-21swapper/322:32:173
3196784991815,1cyclictest0-21swapper/321:29:513
3196784991815,1cyclictest0-21swapper/321:12:453
3196784991815,1cyclictest0-21swapper/300:00:153
319678499181,13cyclictest3667875-21taskset00:30:143
319678499181,13cyclictest3651768-21taskset00:19:553
319678499181,13cyclictest3565711-21taskset23:25:073
319678499181,13cyclictest3445146-21taskset22:05:203
319678499181,13cyclictest3398765-21taskset21:36:213
319678499181,13cyclictest3333352-21taskset20:51:513
319678499181,13cyclictest3326868-21taskset20:45:333
319678499181,13cyclictest3302069-21taskset20:30:143
319678499181,13cyclictest3218017-21taskset19:23:033
319678499181,13cyclictest3202880-21taskset19:11:563
319678499181,12cyclictest3597158-21chrt23:45:113
319678499180,14cyclictest3340024-21turbostat21:00:003
33436392171,5sleep13340053-21sendmail-msp21:00:201
3196784991714,1cyclictest0-21swapper/319:25:173
3196784991714,1cyclictest0-21swapper/300:28:063
319678499171,13cyclictest3517702-21taskset22:53:483
319678499171,13cyclictest3517702-21taskset22:53:473
319678499171,13cyclictest3477503-21taskset22:26:093
319678499171,13cyclictest3431367-21taskset21:59:263
319678499171,13cyclictest3390744-21taskset21:30:563
319678499171,13cyclictest3205526-21taskset19:15:053
319678499171,12cyclictest3675780-21taskset00:35:113
319678499171,12cyclictest3542014-21taskset23:10:033
319678499171,12cyclictest3502801-21taskset22:45:093
319678499171,12cyclictest3308350-21taskset20:35:153
319678499171,12cyclictest3269795-21taskset20:05:083
319678499171,12cyclictest3269490-21taskset20:04:563
319678499171,12cyclictest3262690-21taskset19:55:383
33240162160,3sleep03325897-21cut20:45:190
3196784991613,1cyclictest0-21swapper/323:35:173
319678499161,12cyclictest3295530-21taskset20:25:133
35710462150,7sleep13571097-21ntp_states23:25:221
35009582140,10sleep13500964-21ssh22:40:431
34291442141,10sleep03429288-21/usr/sbin/munin21:55:190
33210972141,5sleep1222-21plymouthd20:45:121
36754662130,7sleep014-21ksoftirqd/000:35:010
36545392138,2sleep20-21swapper/200:20:192
35257092131,8sleep23525715-21ssh22:59:162
32429982131,9sleep13243076-21sendmail_mailst19:40:261
36273642121,8sleep23627370-21ssh00:02:352
35790152123,5sleep23579132-21basename23:30:252
34777192121,3sleep0222-21plymouthd22:26:430
34686312120,9sleep13468774-21awk22:20:231
33338852121,8sleep23333907-21apt-get20:55:122
31971552120,8sleep13197351-21hddtemp_smartct19:10:151
31965052120,1sleep20-21swapper/219:08:152
36771152110,8sleep23678000-21kthreadcore00:35:192
35735832110,3sleep13573624-21ssh23:30:111
35577212111,6sleep23557447-21sendmail-msp23:20:052
35262782111,7sleep23526034-21sendmail-msp23:00:092
34774872110,8sleep13477493-21ssh22:26:081
34372502112,6sleep23431655-21sendmail-msp22:00:232
33770402110,8sleep23376829-21/usr/sbin/munin21:25:142
32251112110,8sleep13225272-21cat19:30:151
32206832110,8sleep13222482-21grep19:25:181
36749832102,2sleep03674989-21ssh00:33:530
36364632101,6sleep23636473-21ssh00:10:132
36266382100,1sleep00-21swapper/000:00:370
35910222101,2sleep00-21swapper/023:40:160
35814772101,2sleep20-21swapper/223:35:132
35646852100,7sleep13564691-21ssh23:23:061
35573772100,3sleep13557447-21sendmail-msp23:20:001
35430582100,2sleep10-21swapper/123:10:181
34477422102,4sleep13447745-21apt-get22:10:121
34146942100,7sleep23414700-21ssh21:46:512
33278882100,7sleep03328446-21/usr/sbin/munin20:50:160
33197222100,7sleep23319860-21awk20:40:242
32749932101,5sleep13275030-21ntpq20:05:231
32180362100,3sleep0222-21plymouthd19:23:170
3659086290,6sleep03659088-21ssh00:23:180
3650151290,3sleep13650160-21ssh00:15:291
3636048291,6sleep23636054-21ssh00:09:532
3618772291,5sleep13557470-21kworker/u16:4+xprtiod23:55:491
3612443291,5sleep13612472-21apt23:55:001
3602691290,6sleep13602943-21awk23:45:261
3589697291,5sleep23590238-21sed23:40:142
3565382290,7sleep01-21systemd23:25:010
3540250290,7sleep13540256-21ssh23:05:491
3532963290,6sleep03532966-21sh23:02:230
3515906291,6sleep23515951-21ntpq22:50:222
3515906291,6sleep23515951-21ntpq22:50:222
3508855290,2sleep13508859-21ssh22:46:041
3495371291,6sleep0874-21rs:main0
3470609290,3sleep2222-21plymouthd22:23:482
3461860290,1sleep00-21swapper/022:16:240
3408320291,4sleep03408317-21apt-get21:45:130
3400450292,3sleep13400452-21apt-get21:40:131
3398466290,3sleep2222-21plymouthd21:35:302
3392065290,6sleep13392071-21ssh21:34:361
3382918290,6sleep13382924-21ssh21:25:581
3360152290,1sleep00-21swapper/021:13:260
3346732291,4sleep13346767-21apt-get21:05:131
3314097290,2sleep0222-21plymouthd20:36:170
3287787291,5sleep13287830-21ntpq20:15:221
3266534290,6sleep23268147-21kthreadcore20:00:192
3265498290,6sleep13266532-21kthreadcore20:00:181
3249313291,5sleep03249355-21ntpq19:45:220
3236677290,6sleep03236921-21users19:35:270
3211369290,2sleep0222-21plymouthd19:16:030
3668243280,2sleep1222-21plymouthd00:30:171
3667422280,1sleep10-21swapper/100:29:451
3641753281,4sleep13641790-21ssh00:10:241
3635736280,5sleep00-21swapper/000:08:590
3610467280,5sleep03610708-21grep23:50:260
3580251280,1sleep00-21swapper/023:32:340
3541677285,1sleep20-21swapper/223:09:512
3487511281,4sleep13488028-21ssh22:35:181
3485196280,1sleep1222-21plymouthd22:30:451
3454018280,2sleep0222-21plymouthd22:11:350
3453099280,6sleep23453227-21python322:10:252
3446353280,5sleep13446358-21diskmemload22:07:111
3437389284,2sleep186188-21systemd-journal22:00:261
3418939283,3sleep23399220-21kworker/u16:1+nfsiod21:50:162
3409280280,5sleep13410197-21kthreadcore21:45:181
3405807281,4sleep23400155-21sendmail-msp21:40:262
3374524281,4sleep13368590-21sendmail-msp21:20:281
3373359281,4sleep23368590-21sendmail-msp21:20:212
3359243280,2sleep2222-21plymouthd21:11:032
3333530280,2sleep2222-21plymouthd20:54:032
3307901280,2sleep1222-21plymouthd20:34:061
3307900280,2sleep0222-21plymouthd20:34:050
3281991280,2sleep2222-21plymouthd20:10:332
3276256281,4sleep13276253-21apt-get20:10:131
3250500281,4sleep23250228-21apt-get19:50:052
3210780281,4sleep23210822-21ntpq19:15:252
31967849986,1cyclictest0-21swapper/319:10:013
3676275270,4sleep13677113-21cut00:35:181
3667347270,4sleep23667351-21ssh00:29:302
3659958271,3sleep03659993-21apt-get00:25:110
3650637270,1sleep00-21swapper/000:16:490
3645099270,4sleep23645906-21ssh00:15:192
3643920271,3sleep03644120-21latency_hist00:15:000
3612802270,3sleep03612808-21ssh23:55:160
3603795270,2sleep0222-21plymouthd23:47:500
3597120271,3sleep23597153-21apt-get23:45:112
3588153270,4sleep1222-21plymouthd23:38:011
3555836271,3sleep0222-21plymouthd23:15:420
3550083271,3sleep23550159-21fschecks_time23:15:122
3547428270,5sleep03547471-21pluginstate23:10:260
3542007271,3sleep23542013-21ssh23:10:032
3533676271,3sleep10-21swapper/123:04:211
3525030271,3sleep13525036-21ssh22:57:231
3518007270,4sleep0222-21plymouthd22:54:410
3518007270,4sleep0222-21plymouthd22:54:410
3515861270,4sleep13515904-21ntpq22:50:211
3515861270,4sleep13515904-21ntpq22:50:211
3509209270,5sleep03509215-21ssh22:47:000
3508176270,4sleep23508299-21basename22:45:252
3501164270,3sleep2222-21plymouthd22:41:172
3493096271,3sleep0222-21plymouthd22:35:570
3478888270,1sleep23478894-21ssh22:29:582
3447391270,4sleep23447467-21packagekitd22:10:012
3439836271,2sleep03439873-21apt-get22:05:100
3423476270,1sleep00-21swapper/021:54:190
3405716271,3sleep03405759-21ntpq21:40:240
3399520270,4sleep1222-21plymouthd21:38:291
3398717270,1sleep00-21swapper/021:36:150
3391232270,4sleep03391238-21ssh21:32:140
3390045271,4sleep23390077-21ntpq21:30:242
3370622270,5sleep03371925-21kthreadcore21:20:190
3360994270,5sleep13361000-21ssh21:15:041
3353230270,4sleep10-21swapper/121:10:141
3328447271,3sleep10-21swapper/120:50:171
3320809270,4sleep00-21swapper/020:44:470
3314383271,3sleep23314444-21sendmail-msp20:40:002
3301339270,1sleep00-21swapper/020:26:310
3295479270,4sleep10-21swapper/120:25:041
3284638271,3sleep2222-21plymouthd20:15:192
3276504271,3sleep0222-21plymouthd20:10:150
3263026271,4sleep03263087-21sendmail-msp20:00:010
3262991270,1sleep10-21swapper/119:59:341
3252507273,2sleep13254271-21kthreadcore19:50:201
3243538270,1sleep0222-21plymouthd19:41:170
3231252271,2sleep20-21swapper/219:35:132
3230862270,1sleep2222-21plymouthd19:33:572
3219808271,4sleep03220682-21tr19:25:170
3196948271,3sleep23196980-21apt-get19:10:122
3195658270,3sleep13195708-21ntpq19:05:231
3190565271,3sleep03190598-21apt-get19:05:130
3667806262,2sleep2431ktimers/200:30:102
3657396260,3sleep13651854-21sendmail-msp00:20:221
3635235260,1sleep10-21swapper/100:07:361
3604972260,3sleep2222-21plymouthd23:50:122
3592334260,3sleep13593703-21cut23:40:171
3572575260,3sleep03572581-21ssh23:28:010
3565727260,4sleep20-21swapper/223:25:112
3524390260,1sleep00-21swapper/022:55:380
3493814260,1sleep20-21swapper/222:37:552
3485645260,1sleep20-21swapper/222:31:542
3479653261,2sleep0222-21plymouthd22:30:160
3470444260,1sleep00-21swapper/022:23:220
3462187260,3sleep13462193-21ssh22:17:221
3461503260,3sleep2222-21plymouthd22:15:302
3425279261,2sleep10-21swapper/121:55:161
3376869260,2sleep00-21swapper/021:25:120
3367746261,2sleep00-21swapper/021:17:470
3352585260,1sleep00-21swapper/021:06:360
3352562260,1sleep20-21swapper/221:06:182
3342219261,2sleep00-21swapper/021:00:190
3340316260,2sleep20-21swapper/221:00:132
3339969260,3sleep0222-21plymouthd20:59:430
3336889261,3sleep13338776-21kthreadcore20:55:191
3314712261,2sleep10-21swapper/120:40:151
3308259260,2sleep1222-21plymouthd20:35:141
3301413260,1sleep20-21swapper/220:27:292
3294961260,3sleep2222-21plymouthd20:21:402
3275840261,2sleep2222-21plymouthd20:08:332
3275674260,3sleep0222-21plymouthd20:06:230
3269466260,1sleep00-21swapper/020:04:380
3258326261,2sleep20-21swapper/219:55:182
3250498261,2sleep0222-21plymouthd19:50:030
3248823260,4sleep13249215-21strings19:45:191
3244130261,2sleep20-21swapper/219:45:122
3237594260,3sleep23237388-21appstreamcli19:40:032
3237053260,1sleep10-21swapper/119:37:011
3224443260,3sleep2222-21plymouthd19:28:522
3213372260,3sleep2874-21rs:main2
3206945260,3sleep1321rcuc/119:15:201
3618829250,2sleep23618837-21ssh23:55:582
3582984250,3sleep03584597-21cut23:35:190
3540243250,3sleep00-21swapper/023:05:480
3430083250,3sleep20-21swapper/221:55:502
3422139250,2sleep1222-21plymouthd21:50:391
3366933250,2sleep2222-21plymouthd21:15:322
3321135250,1sleep20-21swapper/220:45:132
3301872251,2sleep20-21swapper/220:30:102
3294917250,2sleep0222-21plymouthd20:21:060
3282641250,2sleep00-21swapper/020:15:120
3230605250,2sleep0222-21plymouthd19:30:380
3217906250,2sleep1222-21plymouthd19:21:371
3198774250,2sleep0222-21plymouthd19:10:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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