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2026-07-28 - 05:20
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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 Tue Jul 28, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
273702721870,1sleep1321rcuc/120:55:171
2599375993128,1cyclictest0-21swapper/321:40:193
30404252270,2sleep0222-21plymouthd00:10:190
2599375992622,1cyclictest0-21swapper/300:05:003
2599375992320,1cyclictest0-21swapper/321:20:153
2599375992118,1cyclictest0-21swapper/322:20:043
2599375992118,1cyclictest0-21swapper/322:05:133
2599375992111,7cyclictest26332782sleep319:32:213
2599375992017,1cyclictest0-21swapper/322:40:213
2599375992017,1cyclictest0-21swapper/322:35:123
2599375992017,1cyclictest0-21swapper/322:00:013
2599375992017,1cyclictest0-21swapper/321:00:013
2599375992017,1cyclictest0-21swapper/320:50:013
2599375992017,1cyclictest0-21swapper/300:20:043
259937599201,15cyclictest2717224-21taskset20:40:133
259937599201,15cyclictest2717224-21taskset20:40:123
259937599201,14cyclictest2716616-21taskset20:36:233
259937599192,13cyclictest2855379-21taskset22:10:213
2599375991916,1cyclictest0-21swapper/323:51:323
2599375991916,1cyclictest0-21swapper/323:00:193
2599375991916,1cyclictest0-21swapper/322:20:013
2599375991916,1cyclictest0-21swapper/320:20:233
259937599191,14cyclictest3021160-21taskset23:55:303
259937599191,14cyclictest3021160-21taskset23:55:293
259937599191,14cyclictest2999949-21taskset23:45:163
259937599191,13cyclictest2672264-21taskset20:05:003
259937599191,13cyclictest2659469-21chrt19:55:153
27872502181,9sleep02787398-21/usr/sbin/munin21:30:130
275912021814,1sleep30-21swapper/321:10:213
259937599182,13cyclictest2966975-21taskset23:22:463
259937599182,12cyclictest2735978-21taskset20:52:593
2599375991816,1cyclictest0-21swapper/323:10:013
2599375991815,1cyclictest0-21swapper/322:50:193
2599375991815,1cyclictest0-21swapper/321:00:043
2599375991815,1cyclictest0-21swapper/319:20:013
259937599181,13cyclictest2989201-21taskset23:35:263
259937599181,13cyclictest2975630-21taskset23:29:563
259937599181,13cyclictest2958442-21taskset23:16:013
259937599181,13cyclictest2886993-21taskset22:30:263
259937599181,13cyclictest2880136-21taskset22:26:543
259937599181,13cyclictest2880136-21taskset22:26:533
259937599181,13cyclictest2833167-21taskset21:57:423
259937599181,13cyclictest2816258-21taskset21:45:233
259937599181,13cyclictest2794309-21taskset21:33:573
259937599181,13cyclictest2785856-21taskset21:27:073
259937599181,13cyclictest2767962-21taskset21:15:203
259937599181,13cyclictest2754533-21taskset21:05:263
259937599181,13cyclictest2710208-21taskset20:31:273
259937599181,13cyclictest2678777-21chrt20:10:143
259937599181,13cyclictest2659009-21taskset19:53:093
259937599181,13cyclictest2646624-21taskset19:45:083
259937599181,13cyclictest2646155-21taskset19:42:233
259937599181,13cyclictest2639654-21taskset19:36:543
259937599181,13cyclictest2626846-21taskset19:26:483
259937599181,13cyclictest2619767-21taskset19:20:223
259937599181,12cyclictest2818624-21taskset21:50:013
259937599177,7cyclictest26980242sleep320:25:133
259937599172,12cyclictest3077299-21taskset00:32:423
2599375991714,1cyclictest0-21swapper/319:10:203
2599375991714,1cyclictest0-21swapper/300:35:173
259937599171,13cyclictest3051994-21taskset00:15:193
259937599171,13cyclictest2991632-21taskset23:40:023
259937599171,13cyclictest2926223-21taskset22:55:233
259937599171,13cyclictest2685125-21taskset20:15:023
259937599171,12cyclictest3037117-21taskset00:05:533
259937599171,12cyclictest2976257-21taskset23:30:153
259937599171,12cyclictest2905227-21taskset22:45:053
26457512160,5sleep12645753-21timerandwakeup19:40:291
2599375991613,1cyclictest0-21swapper/300:25:193
259937599161,12cyclictest3038901-21taskset00:10:093
259937599161,12cyclictest2950704-21taskset23:11:273
259937599161,12cyclictest2677474-21taskset20:05:213
259937599161,11cyclictest2802636-21sleep21:40:003
30789462140,6sleep03079826-21irqrtprio00:35:160
30614172141,10sleep13061423-21ssh00:22:191
27618902142,5sleep22749611-21kworker/u16:0+nfsiod21:11:242
26273652141,3sleep22627398-21apt-get19:30:122
29417112131,4sleep12941857-21ntpq23:05:221
29124352130,8sleep12912441-21ssh22:49:061
28404032130,1sleep0221rcuc/022:00:510
28327602120,8sleep12832768-21ssh21:56:411
27043622122,7sleep0222-21plymouthd20:30:030
26869802120,9sleep22688687-21cut20:15:182
26517782120,9sleep02651812-21ntpq19:45:210
26198452121,8sleep12619971-21mailstats19:20:251
29135772111,7sleep02914115-21irqrtprio22:50:160
28449472114,5sleep22846635-21kthreadcore22:05:202
28344892111,2sleep2222-21plymouthd22:00:142
27971162111,7sleep02798782-21kthreadcore21:35:190
27947192111,7sleep22794778-21munin-run21:35:012
27469032111,3sleep02747883-21memory21:00:230
26534172111,7sleep12653574-21irqcore19:50:161
30462712100,7sleep13046277-21ssh00:14:211
30385832100,7sleep11-21systemd00:10:011
30224392100,4sleep02954365-21kworker/u16:2+rpciod23:59:010
30224392100,4sleep02954365-21kworker/u16:2+rpciod23:59:000
29950132100,7sleep02996453-21kthreadcore23:40:210
29675112100,7sleep01000-21snmpd23:24:160
29662382101,7sleep10-21swapper/123:20:401
29495832101,5sleep12949727-21/usr/sbin/munin23:10:221
29283702100,7sleep22928473-21sd-rmrf23:00:012
29189742100,7sleep12918980-21ssh22:50:331
28963092100,7sleep22896315-21ssh22:38:152
28254932100,8sleep22825499-21ssh21:53:022
28247862101,6sleep12824792-21ssh21:50:591
28107902101,6sleep1222-21plymouthd21:45:111
28102552100,7sleep12810261-21ssh21:44:191
27609102101,7sleep10-21swapper/121:10:231
27227262100,7sleep12717188-21/usr/sbin/munin20:40:281
27227262100,7sleep12717188-21/usr/sbin/munin20:40:281
27160902100,1sleep10-21swapper/120:35:261
26813322101,7sleep10-21swapper/120:10:211
26166602100,7sleep22618104-21grep19:20:182
25992362101,4sleep30-21swapper/319:10:013
25932452101,4sleep00-21swapper/019:05:170
3061143290,7sleep23061149-21ssh00:21:272
3055269291,5sleep03054546-21sendmail-msp00:20:180
3037254290,2sleep0222-21plymouthd00:06:150
3023147290,5sleep134-21ksoftirqd/100:00:091
3014691291,5sleep21000-21snmpd23:54:182
3000643290,6sleep13001498-21cut23:45:181
2920928291,4sleep02920965-21apt-get22:55:140
2920105290,6sleep22920113-21ssh22:53:392
2910383291,4sleep22910529-21ntpq22:45:222
2825818292,4sleep0222-21plymouthd21:53:510
2786429290,2sleep2222-21plymouthd21:28:432
2777574290,2sleep0222-21plymouthd21:21:000
2762932290,7sleep02762938-21ssh21:14:100
2755168290,2sleep0222-21plymouthd21:07:240
2704075290,1sleep10-21swapper/120:29:401
2683973291,4sleep22684000-21ntpq20:10:262
2665851290,3sleep20-21swapper/220:00:082
2665339290,2sleep1222-21plymouthd19:57:011
2659433291,4sleep2222-21plymouthd19:55:142
2594875291,4sleep22596629-21grep19:05:232
3075766281,4sleep2222-21plymouthd00:30:212
3070579281,3sleep13070614-21apt-get00:30:131
3069297280,6sleep03069304-21sh00:27:230
3005634280,1sleep20-21swapper/223:45:472
2991739281,4sleep286188-21systemd-journal23:40:142
2991734281,4sleep12991727-21apt-get23:40:141
2991275280,5sleep0222-21plymouthd23:39:480
2973457281,4sleep02973499-21ntpq23:25:240
2960193281,4sleep22959930-21sendmail-msp23:20:092
2944443280,4sleep0222-21plymouthd23:10:130
2905258281,5sleep02879667-21kworker/u16:1-nfsiod22:45:120
2897283281,5sleep22865199-21kworker/u16:2+rpciod22:40:092
2888022280,2sleep20-21swapper/222:32:032
2883772281,4sleep02885031-21ssh22:30:190
2880665280,1sleep00-21swapper/022:28:200
2880665280,1sleep00-21swapper/022:28:200
2875671280,5sleep12877326-21kthreadcore22:25:201
2875671280,5sleep12877326-21kthreadcore22:25:191
2868232281,4sleep186188-21systemd-journal22:20:181
2865820282,3sleep22865844-21apt-get22:20:112
2810832281,2sleep20-21swapper/221:45:112
2801134280,6sleep12801138-21ssh21:36:001
2778639280,2sleep22778645-21ssh21:23:552
2771853284,2sleep12772156-21cut21:20:171
2742774281,4sleep1249-21jbd2/sda2-821:00:041
2742173281,3sleep2222-21plymouthd20:55:512
2723682280,4sleep2222-21plymouthd20:45:142
2722447281,4sleep02722483-21ntpq20:40:230
2722447281,4sleep02722483-21ntpq20:40:220
2704086280,1sleep00-21swapper/020:29:470
2684780280,1sleep00-21swapper/020:14:210
2678234282,3sleep1222-21plymouthd20:06:591
2678174281,4sleep20-21swapper/220:06:162
2669051282,3sleep12670650-21kthreadcore20:00:231
2659471280,6sleep02659627-21diskstats19:55:160
2658331280,4sleep2222-21plymouthd19:50:242
2620972281,4sleep00-21swapper/019:25:130
2613906280,5sleep2222-21plymouthd19:16:022
2605513280,1sleep00-21swapper/019:12:260
2604750280,2sleep10-21swapper/119:10:221
2598946280,5sleep10-21swapper/119:06:181
3075911270,4sleep03075962-21ntp_states00:30:240
3066223270,1sleep10-21swapper/100:25:191
3062735271,3sleep2222-21plymouthd00:25:132
3052955270,1sleep00-21swapper/000:15:520
3052881270,1sleep1222-21plymouthd00:15:421
3052263271,3sleep23052311-21ntpq00:15:232
3030738270,5sleep23030776-21munin-run00:04:592
3022663270,1sleep2222-21plymouthd23:59:352
3022663270,1sleep2222-21plymouthd23:59:342
2982999270,1sleep12983005-21ssh23:33:431
2976036270,3sleep02976030-21apt-get23:30:140
2959422270,1sleep00-21swapper/023:18:480
2958260270,4sleep2222-21plymouthd23:15:332
2943614271,3sleep0222-21plymouthd23:08:370
2935263271,3sleep1222-21plymouthd23:02:121
2935023270,1sleep20-21swapper/223:01:292
2904214270,3sleep1222-21plymouthd22:43:031
2897908271,4sleep02897026-21sendmail-msp22:40:180
2887294270,4sleep12887463-21vmstat22:30:291
2879471270,4sleep22879596-21users22:25:292
2879471270,4sleep22879596-21users22:25:282
2872324270,1sleep00-21swapper/022:21:570
2865314271,3sleep12865320-21ssh22:19:431
2865069270,5sleep00-21swapper/022:18:580
2847481271,3sleep12847522-21ntpq22:05:231
2828810271,3sleep22830451-21cut21:55:222
2801822270,4sleep2222-21plymouthd21:37:532
2793780271,4sleep12793786-21ssh21:32:281
2779778270,4sleep12780093-21sed21:25:171
2770128271,4sleep22770134-21ssh21:17:202
2763610271,2sleep00-21swapper/021:15:140
2755169270,4sleep10-21swapper/121:07:251
2748001271,3sleep22748051-21ntpq21:00:252
2735878270,1sleep10-21swapper/120:51:461
2732059271,3sleep22733832-21kthreadcore20:50:182
2730049270,4sleep00-21swapper/020:50:130
2729505271,3sleep0222-21plymouthd20:46:510
2723871270,4sleep12723969-21fschecks_time20:45:161
2704408270,3sleep1222-21plymouthd20:30:131
2703944270,1sleep20-21swapper/220:27:572
2691599271,3sleep00-21swapper/020:20:140
2691550271,3sleep22691333-21sendmail-msp20:20:042
2691180270,4sleep0222-21plymouthd20:18:490
2686093270,4sleep12686978-21cut20:15:171
2666054272,2sleep0249-21jbd2/sda2-820:00:180
2652371270,1sleep1222-21plymouthd19:45:301
2646628271,3sleep22646661-21apt-get19:45:122
2642386271,3sleep02639955-21sendmail-msp19:40:210
2639862270,1sleep20-21swapper/219:39:392
2633755271,3sleep12633788-21apt-get19:35:131
2629882270,4sleep12631712-21kthreadcore19:30:191
2626209270,4sleep22626252-21ntp_states19:25:242
2614968271,4sleep02615875-21irqrtprio19:20:160
2608200271,3sleep10-21swapper/119:15:451
3083733260,4sleep23083774-21ntpq00:35:232
3038928261,2sleep20-21swapper/200:10:132
3037031260,3sleep23037037-21ssh00:05:412
3023609261,3sleep03022903-21sendmail-msp00:00:160
3017584260,4sleep13019367-21kthreadcore23:55:211
3017584260,4sleep13019367-21kthreadcore23:55:201
3007417261,3sleep13007423-21ssh23:50:081
2999693261,2sleep00-21swapper/023:45:130
2990373260,3sleep12990379-21ssh23:37:161
2983835260,4sleep22983854-21ssh23:35:132
2982624260,1sleep20-21swapper/223:32:362
2974737261,3sleep22974743-21ssh23:27:322
2968142261,2sleep12968177-21apt-get23:25:141
2958898261,2sleep10-21swapper/123:17:201
2945873260,3sleep22946751-21ssh23:10:192
2942085261,2sleep20-21swapper/223:05:272
2936184260,1sleep00-21swapper/023:04:390
2927951260,1sleep10-21swapper/122:58:361
2865082260,3sleep22865088-21ssh22:19:042
2856554260,3sleep0222-21plymouthd22:12:030
2855334261,2sleep20-21swapper/222:10:212
2850536260,3sleep12851244-21cut22:10:161
2847333260,3sleep02847479-21ntpq22:05:220
2834249261,3sleep1874-21rs:main1
2833692260,1sleep00-21swapper/021:59:130
2818221260,3sleep0222-21plymouthd21:49:350
2809863260,4sleep00-21swapper/021:43:160
2804771260,3sleep22806035-21ps21:40:192
2786421260,3sleep00-21swapper/021:28:420
2769676260,1sleep10-21swapper/121:16:031
2749256261,2sleep22749289-21apt-get21:05:132
2742369260,3sleep0222-21plymouthd20:58:220
2723094260,3sleep2222-21plymouthd20:40:572
2723094260,3sleep2222-21plymouthd20:40:562
2716660260,1sleep00-21swapper/020:36:580
2715962261,3sleep22716005-21ntpq20:35:232
2709523260,3sleep22709560-21ntpq20:30:232
2696898261,3sleep10-21swapper/120:20:271
2673834260,3sleep02675537-21kthreadcore20:05:180
2659136261,2sleep00-21swapper/019:54:440
2646124260,3sleep2222-21plymouthd19:41:592
2633946260,3sleep02634061-21fw_packets19:35:150
2627403260,3sleep02627553-21df_inode19:30:150
2626877260,3sleep1222-21plymouthd19:27:111
2608139260,1sleep00-21swapper/019:15:240
2604790260,3sleep22604829-21ntpq19:10:232
3085136250,3sleep1976-21sshd00:37:461
3013329250,2sleep0222-21plymouthd23:50:310
2895929250,2sleep1222-21plymouthd22:37:111
2889382250,3sleep00-21swapper/022:35:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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