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2026-08-15 - 12:11
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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 all highest latencies:
System rackeslot8.osadl.org (updated Sat Aug 15, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
283767923670,6sleep1321rcuc/120:20:271
278329023180,1sleep10-21swapper/119:40:181
310590121400,5sleep134-21ksoftirqd/123:20:251
2740041992623,1cyclictest0-21swapper/322:35:183
2740041992623,1cyclictest0-21swapper/320:55:013
2740041992622,1cyclictest0-21swapper/323:20:173
2740041992421,1cyclictest0-21swapper/323:10:183
2740041992421,1cyclictest0-21swapper/319:20:143
2740041992320,1cyclictest0-21swapper/300:20:183
30730922220,3sleep13073096-21kthreadcore23:00:201
274004199222,16cyclictest2863682-21taskset20:40:423
274004199222,15cyclictest3210537-21chrt00:30:103
2740041992219,1cyclictest0-21swapper/320:00:073
2740041992219,1cyclictest0-21swapper/300:00:013
2740041992118,1cyclictest0-21swapper/322:00:183
2740041992118,1cyclictest0-21swapper/321:40:123
2740041992118,1cyclictest0-21swapper/319:40:143
2740041992118,1cyclictest0-21swapper/300:35:223
274004199211,16cyclictest3129334-21taskset23:35:223
274004199211,15cyclictest3099224-21taskset23:17:263
274004199202,14cyclictest2868871-21taskset20:45:193
2740041992018,0cyclictest0-21swapper/321:20:013
2740041992017,1cyclictest0-21swapper/323:40:423
2740041992017,1cyclictest0-21swapper/323:00:013
2740041992017,1cyclictest0-21swapper/321:35:013
2740041992017,1cyclictest0-21swapper/321:00:183
2740041992017,1cyclictest0-21swapper/319:45:083
274004199201,15cyclictest2968937-21taskset21:55:193
274004199201,14cyclictest3209834-21taskset00:28:593
274004199201,13cyclictest2768015-21taskset19:30:023
274004199192,13cyclictest3084405-21taskset23:10:003
274004199192,13cyclictest2990787-21taskset22:10:143
2740041991916,1cyclictest0-21swapper/322:55:013
2740041991916,1cyclictest0-21swapper/322:40:063
2740041991916,1cyclictest0-21swapper/321:20:173
2740041991916,1cyclictest0-21swapper/319:55:163
274004199191,15cyclictest2896044-21turbostat21:10:003
274004199191,14cyclictest2901746-21taskset21:10:243
274004199191,14cyclictest2799540-21taskset19:51:023
274004199191,13cyclictest3192738-21taskset00:15:273
274004199191,13cyclictest3171261-21taskset00:05:013
274004199191,13cyclictest3139822-21chrt23:45:123
274004199191,13cyclictest2850246-21chrt20:30:193
274004199191,13cyclictest2740230-21chrt19:10:173
2740041991816,1cyclictest0-21swapper/323:00:253
2740041991815,1cyclictest0-21swapper/322:20:283
2740041991815,1cyclictest0-21swapper/322:20:273
274004199181,13cyclictest3155523-21taskset23:55:113
274004199181,13cyclictest3123285-21taskset23:33:463
274004199181,13cyclictest3115165-21taskset23:27:553
274004199181,13cyclictest3051640-21taskset22:45:343
274004199181,13cyclictest3028039-21taskset22:30:553
274004199181,13cyclictest2942682-21chrt21:38:593
274004199181,13cyclictest2925364-21taskset21:25:243
274004199181,13cyclictest2883169-21sleep21:00:003
274004199181,13cyclictest2838638-21taskset20:25:053
274004199181,13cyclictest2767462-21taskset19:26:093
2740041991714,1cyclictest0-21swapper/320:20:163
274004199171,13cyclictest3152932-21taskset23:50:223
274004199171,13cyclictest2985098-21taskset22:05:173
274004199171,13cyclictest2857216-21taskset20:35:403
274004199171,13cyclictest2746755-21taskset19:15:023
274004199171,12cyclictest3015668-21taskset22:25:183
274004199171,12cyclictest2964356-21chrt21:50:223
274004199171,12cyclictest2957321-21taskset21:45:573
274004199171,12cyclictest2818798-21taskset20:05:583
274004199170,13cyclictest2780254-21taskset19:36:033
30614082161,2sleep10-21swapper/122:55:121
274004199167,6cyclictest28223762sleep320:10:203
2740041991613,1cyclictest0-21swapper/300:10:253
274004199161,12cyclictest2998371-21taskset22:15:033
274004199161,12cyclictest2831570-21taskset20:16:283
30610462151,4sleep23061107-21munin-run22:55:012
32026012149,2sleep00-21swapper/000:25:040
31943752141,10sleep23194440-21sendmail-msp00:20:002
31372422141,4sleep23137282-21ntpq23:40:232
309150321410,2sleep02997995-21kworker/0:2+kacpid23:12:550
30450952149,2sleep00-21swapper/022:44:200
32019652131,9sleep23201969-21ssh00:24:002
31783632130,10sleep13178369-21ssh00:08:451
29595152131,9sleep12959085-21/usr/sbin/munin21:50:171
29443372130,10sleep02945031-21tr21:40:170
27611852132,3sleep1222-21plymouthd19:23:111
31242772121,9sleep03124481-21hddtemp_smartct23:35:160
30944012120,9sleep13096076-21cut23:15:161
30117672123,3sleep23011809-21sh22:20:252
30117672123,3sleep23011809-21sh22:20:252
30056442121,8sleep23005646-21ssh22:19:042
29263732121,8sleep12926379-21ssh21:27:151
29094552121,8sleep02909500-21ntp_states21:15:230
28886792121,8sleep02883193-21sendmail-msp21:00:240
28834222121,3sleep10-21swapper/121:00:131
27762412121,8sleep12777998-21kthreadcore19:35:181
30431272110,7sleep13043175-21ntpq22:40:241
30329122110,2sleep20-21swapper/222:35:192
29802082111,7sleep02980256-21ntpq22:00:260
29381322111,7sleep02939409-21tr21:35:200
28903362110,4sleep02891154-21cut21:05:170
28766922110,1sleep00-21swapper/020:54:030
28573482110,7sleep0222-21plymouthd20:37:230
27808482112,6sleep22780881-21apt-get19:40:122
27677592110,8sleep12767760-21cron19:30:011
27539062111,3sleep02753948-21ntpq19:15:240
32199302100,7sleep03221524-21grep00:35:180
31397882101,5sleep23139815-21apt-get23:45:122
31085442100,7sleep03108664-21/usr/sbin/munin23:25:140
30535042100,8sleep13053509-21sh22:50:071
29906262101,5sleep12990628-21ssh22:10:131
29754562101,6sleep12896031-21diskmemload22:00:191
28087902100,7sleep22810256-21grep20:00:212
274004199108,1cyclictest0-21swapper/319:10:013
27338582101,3sleep20-21swapper/219:05:122
3217600290,3sleep13217606-21ssh00:34:031
3216539290,2sleep2222-21plymouthd00:31:032
3211936290,7sleep03213105-21grep00:30:170
3209019291,4sleep13209025-21ssh00:26:451
3202287290,2sleep0222-21plymouthd00:25:000
3200353291,4sleep13194440-21sendmail-msp00:20:281
3162048290,6sleep13162054-21ssh23:57:181
3145512290,6sleep13139780-21/usr/sbin/munin23:45:271
3116196292,3sleep03116233-21apt-get23:30:110
3092569291,4sleep23092602-21apt-get23:15:092
3084739291,4sleep13084761-21apt-get23:10:111
3082438291,6sleep23082484-21ntpq23:05:222
3078015295,2sleep03078627-21kthreadcore23:05:170
3067494291,5sleep23067498-21ssh22:56:092
3031294290,7sleep13032911-21cut22:35:191
3011724291,4sleep13011766-21ntpq22:20:241
3011724291,4sleep13011766-21ntpq22:20:241
3005027290,2sleep1222-21plymouthd22:17:191
2990590291,5sleep02990623-21apt-get22:10:120
2982101290,2sleep22982107-21ssh22:04:132
2957596291,5sleep286188-21systemd-journal21:46:412
2954344290,2sleep00-21swapper/021:45:180
2920028290,6sleep02920229-21smartctl21:25:140
2870831290,6sleep12870856-21awk20:50:141
2838028290,2sleep2222-21plymouthd20:21:012
2830885292,3sleep02830924-21ntpq20:15:220
2820784291,5sleep20-21swapper/220:10:192
2818972291,4sleep0222-21plymouthd20:08:120
2805949290,2sleep1222-21plymouthd19:56:181
2795666290,6sleep22797438-21kthreadcore19:50:182
2790009291,4sleep12791848-21cut19:45:161
2761596290,5sleep0222-21plymouthd19:25:110
3186936281,4sleep03187081-21diskstats00:15:130
3163634280,5sleep23163829-21head00:00:162
3163462281,4sleep03163132-21sendmail-msp00:00:140
3147669281,4sleep13147664-21apt-get23:50:121
3130208280,2sleep2222-21plymouthd23:36:142
3099488281,1sleep0222-21plymouthd23:18:080
3066747280,4sleep0222-21plymouthd22:55:230
3052440280,5sleep02896031-21diskmemload22:47:490
3050813281,4sleep23050941-21ntpq22:45:182
3049997281,4sleep13050812-21sed22:45:161
3027265281,3sleep13027304-21ntpq22:30:221
2973656280,1sleep10-21swapper/121:57:531
2951277281,3sleep12951304-21apt-get21:45:111
2932956281,4sleep22933007-21ntp_states21:30:212
2925237281,4sleep22925363-21python321:25:242
2918916280,2sleep22918922-21ssh21:23:192
2916294281,4sleep02917120-21memory21:20:210
2905081280,5sleep22905610-21kthreadcore21:15:172
2901656281,4sleep12901707-21ntp_states21:10:231
2895943280,2sleep1222-21plymouthd21:09:111
2891955280,6sleep22893736-21tr21:05:192
2877037281,3sleep12877070-21apt-get20:55:121
2844525280,1sleep00-21swapper/020:26:440
2843875281,4sleep22843917-21ntpq20:25:222
2825773281,3sleep22825806-21apt-get20:15:122
2773258281,4sleep22773297-21ntp_states19:30:222
2773174281,5sleep02773215-21grep19:30:200
2755127281,4sleep22754913-21sendmail-msp19:20:032
2740390280,1sleep10-21swapper/119:10:201
2740224281,3sleep20-21swapper/219:10:172
2739018281,4sleep1222-21plymouthd19:05:231
3224223271,4sleep13224231-21ssh00:35:431
3185004270,1sleep00-21swapper/000:10:360
3184959270,3sleep1222-21plymouthd00:10:291
3179133271,3sleep20-21swapper/200:10:102
3178626270,4sleep20-21swapper/200:09:262
3177230270,1sleep00-21swapper/000:05:310
3161887271,3sleep0222-21plymouthd23:56:530
3161685270,5sleep23161691-21ssh23:56:232
3122572270,4sleep13122578-21ssh23:31:481
3115869271,3sleep13115904-21munin-run23:30:001
3091281270,4sleep23091287-21ssh23:12:212
3083313270,5sleep13083319-21ssh23:06:141
3043808271,4sleep2222-21plymouthd22:40:452
3036209271,3sleep0222-21plymouthd22:36:370
3027968271,3sleep0222-21plymouthd22:30:450
3021702270,5sleep12896031-21diskmemload22:29:581
3020997270,4sleep0222-21plymouthd22:28:000
2999862270,4sleep03001104-21cut22:15:170
2982803270,4sleep22982958-21df_inode22:05:132
2972266270,4sleep02972311-21ntp_states21:55:250
2965322271,3sleep0222-21plymouthd21:51:240
2950735270,4sleep22950741-21ssh21:44:282
2935501271,3sleep12935538-21apt-get21:35:131
2918034270,4sleep1249-21jbd2/sda2-821:20:541
2896341271,3sleep22896375-21apt-get21:10:122
2870188270,1sleep20-21swapper/220:47:312
2870109270,1sleep00-21swapper/020:46:290
2869438270,4sleep12869481-21grep20:45:221
2857489270,3sleep2222-21plymouthd20:39:132
2850901270,1sleep10-21swapper/120:31:391
2850897270,1sleep20-21swapper/220:31:362
2850293271,3sleep02850326-21ntpq20:30:210
2838681270,5sleep12838835-21/usr/sbin/munin20:25:131
2825322270,1sleep00-21swapper/020:12:450
2812993270,3sleep2222-21plymouthd20:05:092
2800519271,3sleep22801029-21cut19:55:152
2799766270,3sleep1222-21plymouthd19:53:581
2788721270,5sleep02790008-21kthreadcore19:45:150
2782253271,3sleep02780621-21sendmail-msp19:40:180
2780448271,3sleep2222-21plymouthd19:38:362
2767692270,3sleep2222-21plymouthd19:29:092
2754732270,1sleep10-21swapper/119:18:301
2746605270,4sleep22746751-21grep19:15:022
3218237260,3sleep23218241-21ssh00:35:042
3208565260,3sleep20-21swapper/200:25:302
3189603260,3sleep13191123-21ssh00:15:181
3163357260,4sleep13163132-21sendmail-msp00:00:021
3154028260,3sleep23154034-21ssh23:51:542
3153542260,1sleep00-21swapper/023:50:310
3138873260,3sleep03138879-21ssh23:43:180
3138226260,3sleep13138232-21ssh23:41:301
3130283261,3sleep1222-21plymouthd23:36:251
3117625261,3sleep23117965-21ssh23:30:172
3108315260,3sleep23108323-21ssh23:25:082
3107371260,1sleep20-21swapper/223:23:032
3069226261,3sleep2249-21jbd2/sda2-823:00:062
3027613261,3sleep23027798-21unixbench_multi22:30:272
3011682260,4sleep03011723-21ld22:20:230
3011682260,4sleep03011723-21ld22:20:230
2996617260,3sleep2222-21plymouthd22:10:502
2988952260,1sleep00-21swapper/022:06:150
2982798261,2sleep10-21swapper/122:05:121
2973011260,4sleep22973015-21ssh21:55:592
2965365260,1sleep20-21swapper/221:51:382
2948688261,2sleep12948732-21ssh21:40:221
2941789260,1sleep20-21swapper/221:36:382
2934332260,1sleep10-21swapper/121:32:361
2928673261,2sleep00-21swapper/021:30:150
2910337261,3sleep12910345-21ssh21:16:211
2897810260,3sleep02899354-21grep21:10:180
2883886261,2sleep20-21swapper/221:00:172
2882847260,3sleep2222-21plymouthd20:56:212
2877230260,3sleep02877345-21fw_packets20:55:150
2876416260,1sleep20-21swapper/220:50:322
2862976261,3sleep22863064-21ntpq20:40:222
2857876260,2sleep10-21swapper/120:40:131
2857294260,2sleep1222-21plymouthd20:36:401
2832338260,3sleep02832535-21hddtemp_smartct20:20:150
2825431260,4sleep10-21swapper/120:14:111
2819097260,3sleep1222-21plymouthd20:09:501
2806563261,3sleep12806297-21sendmail-msp20:00:151
2806562260,3sleep0222-21plymouthd20:00:140
2793274260,1sleep20-21swapper/219:47:542
2770043260,3sleep12771818-21cut19:30:171
2760214261,2sleep00-21swapper/019:20:210
2745378261,3sleep02745421-21ntpq19:10:270
2736179261,2sleep00-21swapper/019:05:180
3146906250,2sleep0222-21plymouthd23:48:510
3100513250,2sleep00-21swapper/023:20:120
3071667250,3sleep03073091-21kthreadcore23:00:200
3058788250,2sleep00-21swapper/022:50:220
3014278250,2sleep23014347-21ssh22:25:142
2863740250,2sleep0222-21plymouthd20:41:230
2831584250,2sleep1222-21plymouthd20:16:391
2801566251,1sleep00-21swapper/019:55:170
2799582250,2sleep0222-21plymouthd19:51:370
2780251250,2sleep0222-21plymouthd19:36:000
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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