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2026-05-25 - 10:20
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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 highest latencies:
System rackeslot8.osadl.org (updated Mon May 25, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
338769993027,1cyclictest0-21swapper/300:35:173
338769992522,1cyclictest0-21swapper/320:25:013
33876999251,9cyclictest449486-21turbostat20:35:013
338769992421,1cyclictest0-21swapper/322:00:193
338769992219,1cyclictest0-21swapper/319:40:013
33876999221,11cyclictest619799-21taskset22:30:013
338769992119,1cyclictest0-21swapper/321:20:013
338769992118,1cyclictest0-21swapper/323:40:053
338769992118,1cyclictest0-21swapper/323:20:033
338769992118,1cyclictest0-21swapper/323:00:283
338769992118,1cyclictest0-21swapper/321:35:003
338769992017,1cyclictest0-21swapper/320:25:163
338769992017,1cyclictest0-21swapper/320:10:193
33876999201,15cyclictest494519-21taskset21:10:103
33876999198,7cyclictest7206302sleep323:32:523
338769991916,1cyclictest0-21swapper/322:45:003
338769991916,1cyclictest0-21swapper/321:40:063
338769991916,1cyclictest0-21swapper/321:40:013
338769991916,1cyclictest0-21swapper/321:40:003
33876999191,14cyclictest759773-21chrt23:57:023
33876999191,13cyclictest398667-21chrt19:55:143
33876999191,13cyclictest379251-21turbostat19:39:593
33876999188,7cyclictest4620692sleep320:42:093
33876999187,8cyclictest4623412sleep320:45:023
338769991815,1cyclictest0-21swapper/323:35:303
338769991815,1cyclictest0-21swapper/320:35:263
338769991815,1cyclictest0-21swapper/300:20:253
338769991811,4cyclictest776613-21turbostat00:10:003
33876999181,14cyclictest710238-21taskset23:25:183
33876999181,14cyclictest353805-21taskset19:20:013
33876999181,13cyclictest761139-21taskset00:00:023
33876999181,13cyclictest688554-21taskset23:10:433
33876999181,13cyclictest651354-21taskset22:50:133
33876999181,13cyclictest648856-21taskset22:45:253
33876999181,13cyclictest588248-21taskset22:09:533
33876999181,13cyclictest571713-21taskset21:57:263
33876999181,13cyclictest555722-21taskset21:46:313
33876999181,13cyclictest510314-21chrt21:20:123
33876999181,13cyclictest493207-21taskset21:05:223
33876999181,13cyclictest468934-21taskset20:50:023
33876999181,13cyclictest417312-21taskset20:07:193
33876999181,13cyclictest398029-21taskset19:50:453
33876999181,13cyclictest385918-21chrt19:45:113
33876999181,13cyclictest345146-21turbostat19:15:013
33876999181,12cyclictest674537-21sleep23:09:553
33876999181,12cyclictest619928-21chrt22:30:123
33876999180,13cyclictest481398-21taskset20:59:563
33876999178,7cyclictest5251602sleep321:28:523
33876999172,12cyclictest487465-21taskset21:00:523
338769991715,1cyclictest0-21swapper/319:20:213
338769991714,1cyclictest0-21swapper/321:50:163
33876999171,13cyclictest752205-21taskset23:53:013
33876999171,13cyclictest696291-21taskset23:15:323
33876999171,13cyclictest696291-21taskset23:15:313
33876999171,13cyclictest594624-21taskset22:10:403
33876999171,13cyclictest405068-21taskset20:00:113
33876999171,13cyclictest405068-21taskset20:00:113
33876999171,13cyclictest363489-21taskset19:25:183
33876999171,12cyclictest808383-21chrt00:30:133
33876999171,12cyclictest784798-21chrt00:15:133
33876999171,12cyclictest776974-21taskset00:10:133
33876999171,12cyclictest743400-21taskset23:45:393
33876999171,12cyclictest634770-21taskset22:38:353
33876999171,12cyclictest596393-21taskset22:15:023
3377692171,5sleep1337802-21ntpq19:05:241
7121462160,13sleep1712152-21ssh23:25:531
338769991613,1cyclictest0-21swapper/322:20:183
338769991613,1cyclictest0-21swapper/320:15:193
338769991613,1cyclictest0-21swapper/300:25:273
33876999161,12cyclictest659026-21taskset22:55:033
33876999160,12cyclictest372505-21taskset19:30:403
7734112150,5sleep2773417-21kthreadcore00:05:222
5172302151,10sleep1517232-21ssh21:23:371
4328682140,5sleep1331ktimers/120:20:171
5655052131,9sleep1565107-21/usr/sbin/munin21:55:161
3853222131,9sleep00-21swapper/019:41:160
7831782121,8sleep2783184-21ssh00:11:332
7765562120,9sleep1776562-21sh00:09:551
7111982120,4sleep0711343-21ntp_kernel_err23:25:190
6463762120,9sleep1648044-21cut22:45:191
6028772120,2sleep20-21swapper/222:16:542
5011062121,8sleep1501111-21sh21:12:171
3667402121,8sleep0366891-21df_inode19:30:130
7940762110,7sleep1795497-21kthreadcore00:20:181
7427732111,7sleep2742815-21ntpq23:45:232
7391732111,6sleep1665671-21kworker/u16:3+rpciod23:45:171
7371262110,8sleep0737212-21sed23:45:010
6700202110,8sleep2671745-21kthreadcore23:00:202
6273002110,1sleep00-21swapper/022:34:400
5968792111,7sleep1597075-21irqcore22:15:171
5484052110,8sleep0494220-21diskmemload21:42:590
5433852110,2sleep20-21swapper/221:40:182
5425562110,8sleep1543196-21ssh21:40:161
5181182112,5sleep0518153-21apt-get21:25:110
4580762111,7sleep1459837-21tr20:40:181
3986322112,5sleep2398664-21apt-get19:55:142
3789482116,2sleep00-21swapper/019:36:230
3609232111,3sleep1361785-21cut19:25:181
7994552100,3sleep0222-21plymouthd00:23:020
7910152100,2sleep2222-21plymouthd00:16:292
7585462100,3sleep2758592-21ntpq23:55:202
7528222100,7sleep0752824-21ssh23:54:430
7287812101,6sleep0222-21plymouthd23:38:460
6027362100,7sleep0602742-21ssh22:16:240
5890542101,6sleep20-21swapper/222:10:162
5006122100,1sleep00-21swapper/021:11:050
4882632100,7sleep1488463-21smartctl21:05:171
4040662101,2sleep0404286-21/usr/sbin/munin19:55:280
3888762100,7sleep1390759-21kthreadcore19:45:181
3533892101,5sleep2222-21plymouthd19:17:162
3475252100,6sleep1347558-21apt-get19:15:121
3386252100,2sleep30-21swapper/319:09:553
3377232101,5sleep0337767-21ntpq19:05:240
823401290,2sleep1222-21plymouthd00:39:061
822116290,2sleep0222-21plymouthd00:35:370
816245292,4sleep2816242-21apt-get00:35:152
805725291,4sleep1805761-21ntpq00:25:191
784010290,2sleep1222-21plymouthd00:13:491
783243291,4sleep0222-21plymouthd00:11:430
775949290,6sleep0775955-21ssh00:08:170
768254290,7sleep2768260-21ssh00:03:472
735002291,5sleep2735130-21python323:40:262
721777291,4sleep1222-21plymouthd23:35:161
703668291,4sleep2703796-21python323:20:242
687994291,5sleep0688105-21mailstats23:10:250
666550291,5sleep2666613-21sendmail-msp23:00:002
644906290,2sleep00-21swapper/022:45:180
627069290,6sleep2627077-21ssh22:34:052
610624290,2sleep10-21swapper/122:21:411
595518290,1sleep0222-21plymouthd22:13:190
580865290,2sleep0580871-21ssh22:05:140
562696291,5sleep0562786-21systemctl21:50:250
558726290,6sleep1558760-21kthreadcore21:50:181
556946291,5sleep1556952-21ssh21:49:591
555636291,6sleep2555642-21ssh21:46:192
535799290,6sleep1536832-21kthreadcore21:35:201
535799290,6sleep1536832-21kthreadcore21:35:201
480518291,4sleep2480555-21ntpq20:55:232
462567291,4sleep2462599-21apt-get20:45:132
413606290,6sleep2415377-21kthreadcore20:05:192
407232290,6sleep1408994-21cut20:00:181
407232290,6sleep1408994-21cut20:00:171
406247290,6sleep0407230-21grep20:00:170
406247290,6sleep0407230-21grep20:00:160
385882291,4sleep2385915-21apt-get19:45:112
379012290,1sleep10-21swapper/119:37:131
332590291,4sleep20-21swapper/219:05:132
815406282,3sleep2222-21plymouthd00:33:502
802464280,5sleep2804102-21tr00:25:152
797955281,4sleep2798008-21ntp_states00:20:232
792295281,4sleep0792373-21munin-run00:20:010
753304280,4sleep1753310-21ssh23:55:111
714382281,4sleep0714505-21sed23:30:170
698690282,3sleep1699357-21irqrtprio23:20:161
690345280,6sleep20-21swapper/223:15:122
690345280,6sleep20-21swapper/223:15:112
685275281,4sleep2687012-21cut23:10:192
681031281,4sleep1681037-21ssh23:06:321
680814280,2sleep0222-21plymouthd23:05:590
673633280,2sleep1673639-21ssh23:02:401
657457280,2sleep1222-21plymouthd22:51:211
627737281,3sleep0627770-21apt-get22:35:120
587017281,4sleep2222-21plymouthd22:06:242
570223281,4sleep2570346-21ntpq21:55:212
567976284,2sleep0569693-21kthreadcore21:55:190
533746281,4sleep0533900-21df21:35:150
533746281,4sleep0533900-21df21:35:140
532481280,2sleep2532487-21ssh21:32:272
531133280,1sleep10-21swapper/121:30:221
527015280,1sleep00-21swapper/021:30:170
510761281,4sleep2511699-21irqstats21:20:162
510206281,5sleep00-21swapper/021:20:030
508669280,2sleep1508675-21ssh21:16:391
476252285,1sleep00-21swapper/020:55:170
474882280,1sleep00-21swapper/020:53:160
468359280,2sleep1222-21plymouthd20:45:521
446431280,1sleep00-21swapper/020:30:190
443710281,4sleep1443952-21irqcore20:30:161
441930281,4sleep2442070-21ntpq20:25:212
426403280,2sleep0222-21plymouthd20:15:200
410825280,2sleep2222-21plymouthd20:01:072
410825280,2sleep2222-21plymouthd20:01:062
397372281,4sleep0397418-21ntpq19:50:220
393706281,4sleep1395419-21kthreadcore19:50:191
373512281,4sleep2373860-21sed19:35:172
365487280,4sleep2365526-21ntpq19:25:222
359058281,3sleep2359099-21ntpq19:20:222
353879280,1sleep10-21swapper/119:20:051
340835280,5sleep2342567-21grep19:10:202
814254270,2sleep1814258-21ssh00:30:361
806820270,4sleep0222-21plymouthd00:26:430
761622270,4sleep1761762-21cut00:00:171
742856271,3sleep0742979-21python323:45:240
719218271,3sleep2719255-21ntpq23:30:222
704745271,4sleep01000-21snmpd23:22:120
690554270,1sleep1222-21plymouthd23:15:151
690554270,1sleep1222-21plymouthd23:15:141
672845270,1sleep00-21swapper/023:00:300
657986270,1sleep00-21swapper/022:52:530
640976271,3sleep1641021-21ntp_states22:40:231
638066271,3sleep0639751-21grep22:40:180
618613270,1sleep00-21swapper/022:27:190
615205270,4sleep134-21ksoftirqd/122:25:191
609619270,4sleep2609663-21ntpq22:20:222
587980271,3sleep1222-21plymouthd22:09:031
579172271,3sleep0222-21plymouthd22:01:200
574122271,3sleep1574742-21ssh22:00:161
563368270,3sleep2222-21plymouthd21:51:042
556865270,1sleep00-21swapper/021:49:460
509201271,3sleep0222-21plymouthd21:18:070
507871271,3sleep2507949-21ssh21:15:282
493513270,1sleep00-21swapper/021:05:280
488080271,3sleep20-21swapper/221:05:142
486838271,3sleep0486879-21ntpq21:00:220
481231270,1sleep1222-21plymouthd20:57:471
462200270,1sleep20-21swapper/220:43:492
457122271,4sleep0458074-21cut20:40:170
455819270,1sleep00-21swapper/020:39:260
455815270,1sleep10-21swapper/120:39:231
443349270,5sleep2443355-21cpu20:30:142
424200271,3sleep2424197-21apt-get20:15:132
416552271,3sleep1416592-21ntpq20:05:221
380801271,3sleep10-21swapper/119:40:161
372665270,1sleep10-21swapper/119:32:441
360300271,3sleep0360024-21apt-get19:25:050
360007270,4sleep0360279-21latency_hist19:25:000
338973271,3sleep00-21swapper/019:10:130
814848260,1sleep00-21swapper/000:32:150
791701261,3sleep1791707-21ssh00:18:211
768290261,3sleep0222-21plymouthd00:03:530
758641260,3sleep0758686-21ntp_states23:55:220
745804261,2sleep20-21swapper/223:50:162
745333261,2sleep1745370-21apt-get23:50:111
729549260,4sleep10-21swapper/123:40:051
723175261,3sleep2724567-21kthreadcore23:35:212
708586260,4sleep2710237-21cut23:25:182
696426261,2sleep00-21swapper/023:15:540
696426261,2sleep00-21swapper/023:15:540
689851260,3sleep1689855-21ssh23:14:271
678101262,2sleep2679765-21latency23:05:172
664984260,3sleep1664992-21ssh22:55:331
660840260,3sleep0662459-21cut22:55:160
643467261,2sleep2643504-21apt-get22:45:132
642279260,3sleep2222-21plymouthd22:42:402
633998260,1sleep10-21swapper/122:36:301
633695260,3sleep2633701-21ssh22:35:432
620252260,3sleep1620388-21ps22:30:161
604410260,3sleep0222-21plymouthd22:20:130
593962260,3sleep1594008-21ntp_states22:10:231
525206260,2sleep2222-21plymouthd21:29:032
518158260,3sleep10-21swapper/121:25:131
501112260,1sleep20-21swapper/221:12:182
487506260,1sleep20-21swapper/221:01:242
474676261,2sleep10-21swapper/120:50:361
470146260,3sleep2471161-21kthreadcore20:50:172
468358260,1sleep00-21swapper/020:45:510
455804260,1sleep20-21swapper/220:39:162
442114260,3sleep0442163-21ntpq20:25:230
436936260,3sleep1436969-21apt-get20:25:111
436553260,2sleep2222-21plymouthd20:23:322
436327260,1sleep00-21swapper/020:20:360
424159260,2sleep1222-21plymouthd20:15:091
423738260,1sleep00-21swapper/020:13:000
423725260,3sleep2222-21plymouthd20:12:502
417812261,2sleep10-21swapper/120:10:121
404501260,1sleep10-21swapper/119:56:531
398233261,2sleep2222-21plymouthd19:53:202
381790260,3sleep2383607-21tr19:40:182
366701261,3sleep2366734-21apt-get19:30:122
353263260,3sleep0222-21plymouthd19:15:430
720589250,3sleep1720595-21ssh23:32:471
651312250,2sleep20-21swapper/222:50:142
612085250,2sleep2222-21plymouthd22:25:082
579507250,2sleep2222-21plymouthd22:02:222
539893250,2sleep2222-21plymouthd21:36:092
539893250,2sleep2222-21plymouthd21:36:092
487515250,2sleep1222-21plymouthd21:01:311
417202250,2sleep0222-21plymouthd20:05:580
385920250,3sleep0386077-21diskstats19:45:130
339909250,3sleep1340834-21cut19:10:191
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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