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2026-09-16 - 02:58
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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 all highest latencies:
System rackeslot8.osadl.org (updated Tue Sep 15, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
291675021140,1sleep12916753-21irqrtprio07:20:191
291675021140,1sleep12916753-21irqrtprio07:20:191
30181692450,1sleep30-21swapper/308:40:153
2900230993027,1cyclictest0-21swapper/309:30:003
2900230992926,1cyclictest0-21swapper/311:00:213
2900230992824,2cyclictest3338395-21turbostat12:10:003
32732742270,1sleep20-21swapper/211:25:202
2900230992724,1cyclictest0-21swapper/310:00:243
2900230992623,1cyclictest0-21swapper/311:40:283
2900230992522,1cyclictest0-21swapper/312:39:593
2900230992522,1cyclictest0-21swapper/312:20:293
2900230992320,1cyclictest0-21swapper/312:00:003
2900230992320,1cyclictest0-21swapper/310:34:593
2900230992319,1cyclictest0-21swapper/307:20:213
2900230992319,1cyclictest0-21swapper/307:20:203
290023099231,16cyclictest2941017-21taskset07:40:013
2900230992220,1cyclictest0-21swapper/312:05:003
2900230992219,1cyclictest0-21swapper/310:20:223
2900230992218,1cyclictest0-21swapper/307:40:443
290023099221,17cyclictest3199654-21taskset10:40:183
290023099212,15cyclictest3094191-21taskset09:31:263
2900230992118,1cyclictest0-21swapper/309:40:293
2900230992117,1cyclictest0-21swapper/311:05:233
290023099211,15cyclictest3267925-21taskset11:25:003
290023099211,15cyclictest3213318-21taskset10:50:013
290023099211,15cyclictest3011202-21taskset08:33:573
30051052200,2sleep03005103-21latency_hist08:30:010
290023099202,14cyclictest3282770-21taskset11:33:023
2900230992017,1cyclictest0-21swapper/308:20:233
290023099201,15cyclictest2927929-21taskset07:28:223
2900230991916,1cyclictest0-21swapper/312:30:213
2900230991916,1cyclictest0-21swapper/309:35:043
2900230991916,1cyclictest0-21swapper/309:20:183
2900230991916,1cyclictest0-21swapper/308:40:003
290023099191,14cyclictest3290290-21taskset11:37:163
290023099191,14cyclictest2965887-21taskset07:55:293
290023099191,14cyclictest2960048-21taskset07:53:563
290023099191,13cyclictest3158079-21taskset10:14:553
290023099191,13cyclictest3030901-21taskset08:50:133
32330232180,1sleep10-21swapper/111:00:201
2900230991816,1cyclictest0-21swapper/310:15:133
2900230991816,0cyclictest0-21swapper/310:05:153
2900230991815,1cyclictest0-21swapper/309:00:253
290023099181,14cyclictest3134640-21taskset09:59:573
290023099181,13cyclictest3367749-21taskset12:25:223
290023099181,13cyclictest3345639-21taskset12:13:203
290023099181,13cyclictest3299375-21taskset11:45:023
290023099181,13cyclictest3181595-21taskset10:29:483
290023099181,13cyclictest2908972-21chrt07:15:033
2900230991714,1cyclictest0-21swapper/309:50:203
2900230991714,1cyclictest0-21swapper/308:00:193
290023099171,13cyclictest3313892-21taskset11:52:273
290023099171,13cyclictest3274380-21taskset11:26:293
290023099171,13cyclictest3222486-21taskset10:55:183
290023099171,13cyclictest3111434-21taskset09:45:063
290023099171,13cyclictest3071373-21taskset09:18:423
290023099171,13cyclictest3062696-21taskset09:11:183
290023099171,13cyclictest3062696-21taskset09:11:183
290023099171,13cyclictest3004671-21taskset08:26:473
290023099171,13cyclictest2979141-21taskset08:07:233
290023099171,13cyclictest2953511-21taskset07:46:593
290023099171,12cyclictest3195830-21taskset10:35:453
290023099171,12cyclictest3030292-21taskset08:46:043
290023099171,12cyclictest2991774-21taskset08:15:563
290023099171,12cyclictest2934099-21taskset07:30:463
30854222161,3sleep03085466-21ntpq09:25:230
29860382161,11sleep02986194-21diskstats08:15:150
2900230991613,1cyclictest0-21swapper/311:10:193
290023099161,13cyclictest3219794-21taskset10:51:493
290023099161,13cyclictest3219794-21taskset10:51:493
290023099161,12cyclictest3252458-21taskset11:15:033
290023099161,12cyclictest3055872-21taskset09:05:363
290023099161,12cyclictest2980072-21taskset08:10:163
290023099161,12cyclictest2906291-21taskset07:11:513
290023099161,11cyclictest3346612-21taskset12:15:133
290023099161,11cyclictest3043065-21taskset08:56:103
32186772151,6sleep03218718-21ntpq10:50:230
32186772151,6sleep03218718-21ntpq10:50:230
304950121410,2sleep22900221-21cyclictest09:01:062
33231492131,9sleep03323229-21/usr/sbin/munin12:00:150
31207492130,10sleep23122003-21cut09:50:192
32517922121,1sleep00-21swapper/011:14:000
31821682121,4sleep13182242-21fschecks_time10:30:151
31481322124,1sleep2171rcu_preempt10:05:222
30386552120,9sleep03039947-21cut08:55:200
30258622121,7sleep03026775-21cut08:45:180
33607702111,8sleep13360776-21ssh12:21:291
33447172110,3sleep13344721-21ssh12:10:471
33387032110,8sleep23338709-21ssh12:10:072
32666052114,1sleep1171rcu_preempt11:21:311
32539382110,8sleep23254551-21cat11:15:192
32353052110,8sleep23235311-21ssh11:01:102
32265082111,7sleep03226551-21/usr/sbin/munin10:55:240
32116412111,7sleep03211647-21ssh10:45:570
31411622111,7sleep13134725-21sendmail-msp10:01:031
30112612110,3sleep2222-21plymouthd08:34:412
29668202111,6sleep22966556-21sendmail-msp08:00:142
29593832110,8sleep12959502-21cat07:50:261
33518392101,6sleep0222-21plymouthd12:15:230
33232302101,5sleep13323426-21hddtemp_smartct12:00:161
32632852102,5sleep23264713-21kthreadcore11:20:202
32212372100,3sleep23221243-21ssh10:55:142
31950852106,2sleep00-21swapper/010:35:220
31338322100,2sleep0222-21plymouthd09:57:420
30634552101,6sleep13063461-21sh09:13:251
30634552101,6sleep13063461-21sh09:13:251
30180202100,2sleep10-21swapper/108:40:141
29924222100,7sleep02992443-21grep08:20:160
29213522100,2sleep0222-21plymouthd07:20:550
29213522100,2sleep0222-21plymouthd07:20:550
29175072101,6sleep22915244-21sendmail-msp07:20:212
29175072101,6sleep22915244-21sendmail-msp07:20:202
29000532100,1sleep10-21swapper/107:09:361
28997722100,2sleep00-21swapper/007:05:580
3378114290,5sleep244-21ksoftirqd/212:35:132
3338801291,4sleep03338795-21apt-get12:10:170
3307368290,6sleep03307449-21cpuspeed_turbos11:50:170
3306867290,1sleep10-21swapper/111:49:501
3290950290,2sleep13290956-21ssh11:39:071
3283859291,3sleep00-21swapper/011:35:120
3281337292,4sleep23281373-21ssh11:30:262
3278231290,5sleep13279884-21kthreadcore11:30:211
3270731290,6sleep03272543-21cut11:25:190
3265426290,2sleep03260079-21sendmail-msp11:20:220
3219279291,5sleep23219031-21ssh10:50:292
3219279291,5sleep23219031-21ssh10:50:292
3204494290,2sleep2222-21plymouthd10:42:512
3192429290,6sleep13194042-21cut10:35:201
3173062290,6sleep03173068-21ssh10:22:520
3173026290,6sleep23173032-21ssh10:22:462
3149715290,2sleep03149721-21ssh10:08:170
3134975290,2sleep0222-21plymouthd10:00:070
3127225290,6sleep23127309-21cpuspeed_turbos09:55:162
3127213291,4sleep13127216-21apt-get09:55:151
3029688291,5sleep13029732-21ntpq08:45:231
3016658291,4sleep03016746-21ntpq08:35:240
3011260290,2sleep1222-21plymouthd08:34:401
2993789291,5sleep12992155-21sendmail-msp08:20:211
2972789291,2sleep00-21swapper/008:03:080
2943303293,3sleep12944749-21tr07:40:201
2929147290,6sleep02929964-21kthreadcore07:30:170
2900415291,4sleep12900427-21apt-get07:10:131
2900077290,2sleep30-21swapper/307:09:553
2894021291,4sleep20-21swapper/207:05:132
3383420281,4sleep03383471-21ntp_kernel_pll_12:35:230
3370235281,4sleep13370259-21apt-get12:30:151
3368656280,2sleep23368662-21ssh12:26:342
3367648281,4sleep13367693-21ntpq12:25:221
3353067280,2sleep13353073-21ssh12:17:161
3346583281,3sleep23346605-21apt-get12:15:122
3336238281,4sleep03336282-21ntp_states12:05:240
3329304281,4sleep23329310-21ssh12:01:252
3317807280,5sleep13319573-21cut11:55:181
3307262281,3sleep13306977-21apt-get11:50:061
3306760280,1sleep00-21swapper/011:49:320
3304790281,5sleep20-21swapper/211:45:262
3281244281,4sleep03281285-21ntpq11:30:240
3252520282,3sleep03252557-21apt-get11:15:130
3251144281,1sleep20-21swapper/211:12:052
3246299281,5sleep13247934-21kthreadcore11:10:201
3235058281,4sleep03228781-21sendmail-msp11:00:330
3219852280,2sleep1222-21plymouthd10:52:041
3219852280,2sleep1222-21plymouthd10:52:031
3204167282,4sleep13048967-21kworker/u16:4+nfsiod10:41:541
3180313280,5sleep13180319-21ssh10:26:101
3165687281,4sleep13165693-21ssh10:19:251
3141345281,4sleep23134725-21sendmail-msp10:01:322
3116736281,4sleep23116780-21ntpq09:45:222
3112112280,5sleep13112917-21kthreadcore09:45:171
3111425281,3sleep03111214-21appstreamcli09:45:040
3103838281,4sleep13104039-21hddtemp_smartct09:40:141
3103599280,5sleep2874-21rs:main2
3101119281,4sleep03101166-21ntpq09:35:250
3096260281,4sleep1222-21plymouthd09:35:181
3094099280,2sleep1222-21plymouthd09:31:131
3093279281,4sleep03093326-21ntpq09:30:230
3080128280,4sleep13080165-21apt-get09:25:121
3077613280,1sleep1222-21plymouthd09:20:231
3056556281,3sleep20-21swapper/209:10:132
3056556281,3sleep20-21swapper/209:10:122
3014276281,4sleep23016099-21grep08:35:222
2992384281,4sleep22992155-21sendmail-msp08:20:142
2992094281,4sleep12992167-21munin-run08:20:011
2970040281,4sleep12966556-21sendmail-msp08:00:211
2953406280,1sleep20-21swapper/207:45:382
2944750280,6sleep22946186-21sed07:40:212
2931652280,5sleep22933308-21cat07:30:192
2914252281,4sleep12914295-21ntpq07:15:221
2906348280,2sleep0222-21plymouthd07:12:370
3385399271,3sleep172-21kcompactd012:39:251
3367538270,4sleep0222-21plymouthd12:25:210
3360509270,5sleep03360515-21ssh12:20:480
3298649270,2sleep10-21swapper/111:43:401
3291631271,3sleep23291664-21apt-get11:40:122
3275133270,1sleep10-21swapper/111:28:371
3252562271,3sleep1222-21plymouthd11:15:141
3243791270,4sleep03181431-21kworker/0:1+kacpid11:08:190
3243292270,1sleep10-21swapper/111:06:521
3205601271,3sleep1222-21plymouthd10:45:111
3196697271,3sleep2222-21plymouthd10:38:142
3180406270,4sleep03180412-21ssh10:26:250
3179450270,1sleep2171rcu_preempt10:25:232
3172227271,4sleep10-21swapper/110:20:331
3158466271,2sleep20-21swapper/210:15:132
3150683271,3sleep23150686-21apt-get10:10:102
3148086271,4sleep13148130-21ntpq10:05:211
3125651270,1sleep00-21swapper/009:51:450
3124465271,3sleep13124589-21ntpq09:50:211
3095866270,4sleep23096017-21df09:35:152
3086479270,1sleep20-21swapper/209:26:492
3064411271,3sleep13064408-21apt-get09:15:141
3049510271,3sleep13043427-21sendmail-msp09:01:131
3043669271,3sleep03043687-21apt-get09:00:130
3042461270,4sleep10-21swapper/108:55:251
3037252270,3sleep2222-21plymouthd08:55:142
3033165270,4sleep13034973-21cut08:50:191
3030918271,3sleep03031061-21diskstats08:50:140
3030865271,3sleep23030898-21apt-get08:50:132
3030343270,3sleep2222-21plymouthd08:46:442
2985501270,1sleep20-21swapper/208:12:082
2982144270,4sleep12983958-21cut08:10:191
2981013270,4sleep02982143-21cat08:10:180
2979118270,4sleep0222-21plymouthd08:07:050
2978515270,4sleep12978591-21wc08:05:251
2966219270,1sleep20-21swapper/207:56:292
2966203270,1sleep10-21swapper/107:56:151
2959882270,1sleep20-21swapper/207:51:482
2954052271,2sleep02954048-21apt-get07:50:130
2949012271,4sleep02950344-21cat07:45:150
2941138271,3sleep02940912-21sendmail-msp07:40:110
2940755270,1sleep20-21swapper/207:38:492
2939868270,4sleep12939912-21ntpq07:35:231
2939729270,2sleep0222-21plymouthd07:35:220
2927114271,4sleep22927150-21ntpq07:25:222
2914908270,1sleep00-21swapper/007:16:340
2914905270,1sleep20-21swapper/207:16:312
3377517261,2sleep00-21swapper/012:34:310
3377221260,3sleep20-21swapper/212:33:372
3354513260,3sleep23354153-21sendmail-msp12:20:142
3331996260,3sleep23332991-21kthreadcore12:05:172
3330939261,2sleep10-21swapper/112:05:121
3316566260,3sleep03317805-21kthreadcore11:55:180
3307318260,3sleep23307336-21ssh11:50:152
3291589261,3sleep03291370-21sendmail-msp11:40:020
3240044260,3sleep23241791-21cut11:05:202
3221195260,3sleep10-21swapper/110:55:131
3211990260,1sleep23211996-21ssh10:46:522
3188769260,1sleep00-21swapper/010:32:550
3164900260,1sleep00-21swapper/010:17:070
3157902260,2sleep0222-21plymouthd10:14:300
3108890261,3sleep03108927-21ntpq09:40:210
3094184261,3sleep23094190-21ssh09:31:262
3077666261,2sleep20-21swapper/209:20:242
3070466260,3sleep2222-21plymouthd09:16:112
3057991262,2sleep0151ktimers/009:10:190
3057991262,2sleep0151ktimers/009:10:190
3056215260,3sleep13056260-21ssh09:10:001
3056181260,3sleep0222-21plymouthd09:09:350
3050109261,2sleep20-21swapper/209:05:122
3023895260,1sleep20-21swapper/208:41:152
3017521262,2sleep1331ktimers/108:37:491
3011088260,1sleep00-21swapper/008:32:300
3004689260,1sleep10-21swapper/108:27:031
3004592260,3sleep2222-21plymouthd08:25:472
2991864260,1sleep20-21swapper/208:17:042
2974447260,4sleep22975433-21cat08:05:182
2966197260,1sleep00-21swapper/007:56:110
2934153260,1sleep10-21swapper/107:31:301
2928011261,2sleep10-21swapper/107:29:181
2921944261,3sleep00-21swapper/007:25:120
3315127250,2sleep20-21swapper/211:55:122
3290232250,2sleep2222-21plymouthd11:37:042
3197692251,2sleep03197726-21apt-get10:40:120
3181963251,1sleep20-21swapper/210:30:122
3155939250,2sleep1222-21plymouthd10:10:221
3074367251,2sleep00-21swapper/009:20:180
3071351250,2sleep0222-21plymouthd09:18:370
3020437250,2sleep03021917-21cut08:40:200
2947607250,2sleep1222-21plymouthd07:45:091
2905573251,2sleep20-21swapper/207:10:222
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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