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2026-07-12 - 09:18
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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 Sun Jul 12, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
247500221190,1sleep10-21swapper/123:16:471
22244432350,1sleep10-21swapper/120:30:191
2115266993229,1cyclictest0-21swapper/320:20:203
2115266993026,2cyclictest0-21swapper/320:00:013
2115266992825,1cyclictest0-21swapper/322:00:183
2115266992623,1cyclictest0-21swapper/322:40:183
22613392250,1sleep10-21swapper/121:00:181
2115266992523,1cyclictest0-21swapper/322:55:013
2115266992522,1cyclictest0-21swapper/300:00:393
2115266992421,1cyclictest0-21swapper/323:35:213
211526699240,20cyclictest2350331-21turbostat22:00:003
2115266992321,1cyclictest0-21swapper/320:00:213
2115266992320,1cyclictest0-21swapper/321:20:103
2115266992319,2cyclictest2252340-21turbostat20:54:593
2115266992312,1cyclictest0-21swapper/321:43:543
2115266992219,1cyclictest0-21swapper/323:20:203
2115266992219,1cyclictest0-21swapper/323:00:183
2115266992219,1cyclictest0-21swapper/322:20:193
2115266992219,1cyclictest0-21swapper/321:35:163
2115266992219,1cyclictest0-21swapper/300:31:013
2115266992219,1cyclictest0-21swapper/300:20:173
2115266992212,1cyclictest0-21swapper/320:05:183
211526699221,16cyclictest2554378-21taskset00:09:163
211526699221,16cyclictest2404360-21taskset22:32:473
2115266992210,1cyclictest0-21swapper/320:35:123
211526699212,15cyclictest2340985-21taskset21:51:003
2115266992017,1cyclictest0-21swapper/323:55:133
2115266992017,1cyclictest0-21swapper/323:10:183
2115266992017,1cyclictest0-21swapper/320:45:143
2115266992017,1cyclictest0-21swapper/319:45:163
2115266992017,1cyclictest0-21swapper/319:25:003
211526699201,15cyclictest2510028-21taskset23:40:183
211526699201,15cyclictest2207229-21turbostat20:20:003
211526699201,14cyclictest2411777-21taskset22:36:273
211526699192,12cyclictest2174877-21taskset19:50:493
2115266991917,1cyclictest0-21swapper/319:40:203
2115266991916,1cyclictest0-21swapper/321:25:173
2115266991916,1cyclictest0-21swapper/320:40:183
2115266991914,3cyclictest0-21swapper/323:09:493
211526699191,14cyclictest2531122-21turbostat23:55:003
211526699191,14cyclictest2427672-21taskset22:46:453
211526699191,14cyclictest2364591-21taskset22:06:083
211526699182,13cyclictest2490532-21taskset23:26:113
2115266991815,1cyclictest0-21swapper/322:13:163
2115266991815,1cyclictest0-21swapper/321:00:193
2115266991815,1cyclictest0-21swapper/321:00:013
2115266991815,1cyclictest0-21swapper/320:25:213
211526699181,13cyclictest2600892-21taskset00:37:393
211526699181,13cyclictest2498893-21taskset23:32:403
211526699181,13cyclictest2442927-21taskset22:55:313
211526699181,13cyclictest2334541-21taskset21:49:563
211526699181,13cyclictest2310609-21taskset21:33:563
211526699181,13cyclictest2286357-21taskset21:17:093
211526699181,13cyclictest2271344-21taskset21:05:423
211526699181,13cyclictest2226177-21taskset20:30:593
211526699181,13cyclictest2200689-21taskset20:13:153
211526699181,13cyclictest2149402-21taskset19:33:533
211526699181,13cyclictest2129949-21taskset19:16:543
22264952171,13sleep02226545-21/usr/sbin/munin20:35:000
211526699171,13cyclictest2475036-21taskset23:16:573
211526699171,13cyclictest2396228-21taskset22:26:563
211526699171,12cyclictest2562763-21taskset00:15:063
211526699171,12cyclictest2560952-21taskset00:10:463
211526699171,12cyclictest2522090-21taskset23:46:443
211526699171,12cyclictest2374040-21taskset22:15:063
211526699171,12cyclictest2271981-21taskset21:10:063
211526699171,12cyclictest2136988-21chrt19:25:163
211526699171,12cyclictest2121252-21taskset19:10:273
23248032161,4sleep02325053-21/usr/sbin/munin21:40:290
2115266991613,1cyclictest0-21swapper/300:25:273
211526699161,12cyclictest2155592-21taskset19:35:453
25929472150,10sleep12592953-21ssh00:32:251
23479762151,10sleep12348068-21ntpq21:55:241
23338422151,10sleep22333848-21ssh21:47:592
21148212150,2sleep30-21swapper/319:06:243
25455202141,10sleep02545526-21ssh00:01:210
25078502141,9sleep12507614-21sendmail-msp23:40:041
24769252140,4sleep12477562-21cut23:20:161
23442372140,11sleep22345777-21kthreadcore21:55:212
22332032141,3sleep02232913-21apt-get20:40:060
21206812141,9sleep12120721-21ntpq19:10:221
21099592141,9sleep22110749-21cut19:05:192
23818912139,1sleep10-21swapper/122:20:061
23348932131,3sleep2222-21plymouthd21:50:132
22404042130,1sleep20-21swapper/220:45:172
23044152120,9sleep02305132-21cut21:30:180
22869832121,4sleep2222-21plymouthd21:18:542
25943892111,7sleep02594437-21cut00:35:170
25859742114,5sleep12586236-21tar00:30:001
25781582111,7sleep22578412-21latency_hist00:25:012
25228382117,2sleep12155728-21kworker/u16:0-events_power_efficient23:48:471
24838282110,8sleep22483836-21ssh23:24:222
24679092110,1sleep00-21swapper/023:13:490
24215122110,2sleep22421628-21ssh22:45:172
23793372112,5sleep12379375-21ntpq22:15:211
23510662110,8sleep12351476-21irqcore22:00:181
22970682110,8sleep02298170-21cut21:25:160
25829192100,1sleep20-21swapper/200:25:192
25461372100,7sleep22546143-21ssh00:03:042
25380982107,1sleep00-21swapper/023:57:400
25220022100,3sleep22522008-21ssh23:46:312
25074712100,7sleep12507477-21ssh23:39:481
24922242101,5sleep22492230-21ssh23:30:112
24448922101,6sleep02369523-21kworker/0:2+kacpid23:00:100
24448352101,6sleep12444581-21sendmail-msp23:00:071
23643692100,7sleep12364377-21ssh22:05:341
23117602101,6sleep12312474-21sed21:35:151
23012242100,7sleep12301480-21grep21:25:251
22262772100,3sleep2222-21plymouthd20:32:142
21871162102,4sleep0222-21plymouthd20:00:250
21815662100,7sleep02181730-21wc20:00:010
21651522101,6sleep12166933-21kthreadcore19:45:181
21090352101,4sleep12109037-21apt-get19:05:131
2599593290,1sleep20-21swapper/200:35:262
2593444290,6sleep22593450-21ssh00:33:512
2557592291,5sleep00-21swapper/000:10:200
2551717291,5sleep22552324-21cat00:05:192
2546238291,2sleep10-21swapper/100:03:191
2530150290,1sleep00-21swapper/023:52:270
2523228290,2sleep0222-21plymouthd23:49:540
2499521290,2sleep0222-21plymouthd23:34:260
2467179290,3sleep2222-21plymouthd23:11:512
2460406292,4sleep0222-21plymouthd23:09:570
2445005291,6sleep22444581-21sendmail-msp23:00:122
2435242290,1sleep10-21swapper/122:51:051
2430251291,5sleep22430903-21tr22:50:182
2405581290,5sleep02405587-21ssh22:35:130
2405058291,4sleep22405064-21ssh22:34:432
2372344290,1sleep10-21swapper/122:11:051
2310123292,4sleep22219822-21kworker/u16:4+xprtiod21:32:362
2290778290,6sleep12292154-21cut21:20:201
2287701290,1sleep2222-21plymouthd21:20:092
2278304290,6sleep02278309-21sh21:11:370
2200671290,2sleep0222-21plymouthd20:12:590
2142212291,5sleep12142242-21ntpq19:25:261
2132672290,6sleep12134304-21cut19:20:221
2594189281,3sleep12594228-21apt-get00:35:131
2570575280,6sleep02570348-21sendmail-msp00:20:050
2554652281,4sleep12554705-21systemd-run00:09:591
2531055280,2sleep2222-21plymouthd23:54:532
2513271281,4sleep02513324-21ntp_states23:40:250
2500055281,3sleep22500058-21apt-get23:35:132
2491638281,4sleep02491644-21ssh23:29:170
2420729280,1sleep00-21swapper/022:44:230
2418686281,4sleep12418725-21ntpq22:40:231
2411670280,1sleep20-21swapper/222:36:112
2405055280,2sleep12405057-21ssh22:34:411
2396715280,5sleep0222-21plymouthd22:28:200
2388544281,4sleep22388550-21ssh22:22:202
2374112281,3sleep02374106-21apt-get22:15:120
2364903281,5sleep0222-21plymouthd22:06:580
2350571281,4sleep22350353-21sendmail-msp22:00:032
2342800282,3sleep02342803-21apt-get21:55:150
2340154281,4sleep02340197-21ntpq21:50:230
2334548280,1sleep1222-21plymouthd21:49:591
2325494281,4sleep22325500-21sshd-auth21:41:342
2323996281,4sleep12318912-21sendmail-msp21:40:221
2318799280,6sleep02318805-21ssh21:39:510
2303497280,1sleep10-21swapper/121:30:111
2295317281,4sleep01-21systemd21:25:010
2286393284,2sleep12286401-21ssh21:17:151
2282380281,4sleep02283465-21ssh21:15:220
2271413281,4sleep0222-21plymouthd21:06:360
2267668280,5sleep22269453-21cut21:05:222
2265243281,3sleep1222-21plymouthd21:05:011
2259094285,1sleep20-21swapper/221:00:122
2247213281,4sleep22248122-21grep20:50:182
2246163281,4sleep02246196-21apt-get20:50:120
2233211282,3sleep22233244-21apt-get20:40:122
2231968281,4sleep22232012-21ntpq20:35:232
2219896282,3sleep0222-21plymouthd20:27:360
2215403280,5sleep12217029-21sed20:25:201
2209222281,4sleep22207267-21sendmail-msp20:20:192
2201131280,1sleep00-21swapper/020:15:130
2194109280,2sleep2222-21plymouthd20:06:202
2174296281,4sleep12174343-21ntp_states19:50:241
2156399280,6sleep22156489-21fschecks_time19:40:152
2155015281,4sleep02155062-21ntp_states19:35:230
2149425280,1sleep10-21swapper/119:34:131
2149164281,4sleep2222-21plymouthd19:30:532
2135674281,4sleep02135711-21ntpq19:20:250
2130488281,4sleep22130259-21sendmail-msp19:20:142
2130116280,1sleep20-21swapper/219:18:572
2123087281,4sleep02123807-21ntp_states19:15:020
2592261271,3sleep0222-21plymouthd00:30:310
2584496270,1sleep00-21swapper/000:25:460
2569417272,2sleep20-21swapper/200:17:342
2563263271,3sleep00-21swapper/000:15:160
2561275271,3sleep1222-21plymouthd00:11:371
2538877270,1sleep20-21swapper/223:59:542
2531385271,3sleep12531422-21apt-get23:55:121
2525322270,4sleep12526706-21ssh23:50:201
2507992271,3sleep22508106-21diskstats23:40:142
2499057270,1sleep10-21swapper/123:33:151
2490990270,4sleep22490996-21ssh23:27:322
2489769271,3sleep12489877-21sendmail_mailtr23:25:261
2476433271,3sleep02476206-21sendmail-msp23:20:070
2468692271,3sleep02468696-21apt-get23:15:150
2452867271,3sleep12452904-21apt-get23:05:131
2442273271,3sleep22442314-21ntpq22:55:232
2429139270,3sleep02429174-21apt-get22:50:120
2427999273,2sleep12115261-21cyclictest22:47:411
2426483271,3sleep02426563-21ntpq22:45:240
2413367270,4sleep2222-21plymouthd22:40:042
2405472270,3sleep12405265-21appstreamcli22:35:011
2396544270,4sleep22396549-21sh22:27:532
2388242270,5sleep02271696-21diskmemload22:21:330
2373435270,4sleep22373441-21ssh22:14:062
2316719271,3sleep22316843-21python321:35:242
2295635271,3sleep22295676-21ssh21:25:112
2277166271,4sleep12277249-21ntpq21:10:221
2265072270,1sleep00-21swapper/021:02:470
2258405270,4sleep0222-21plymouthd20:55:340
2257815270,4sleep22257852-21ntpq20:55:242
2245681271,3sleep0222-21plymouthd20:47:400
2219184271,3sleep22219226-21ntpq20:25:242
2206953271,3sleep1222-21plymouthd20:16:501
2194659271,3sleep22194692-21apt-get20:10:102
2194306270,1sleep00-21swapper/020:08:520
2188273270,4sleep1222-21plymouthd20:05:071
2183095270,4sleep22183894-21cat20:00:202
2180466271,3sleep22180606-21ntpq19:55:212
2175475271,3sleep12175507-21apt-get19:55:121
2174966270,1sleep00-21swapper/019:51:590
2157175271,4sleep12157740-21kthreadcore19:40:181
2149760270,1sleep10-21swapper/119:35:121
2143362271,3sleep02143394-21apt-get19:30:150
2136987270,3sleep2222-21plymouthd19:25:152
2129277271,4sleep12129325-21ntpq19:15:231
2114950270,3sleep0222-21plymouthd19:08:010
2576856260,3sleep10-21swapper/100:21:151
2568014260,4sleep12568055-21ntpq00:15:211
2555023261,2sleep20-21swapper/200:10:132
2553114260,1sleep00-21swapper/000:05:330
2499961260,1sleep00-21swapper/023:35:020
2467439260,3sleep1222-21plymouthd23:12:381
2452701260,3sleep22452585-21appstreamcli23:05:022
2437508260,3sleep12438420-21ssh22:55:191
2437404260,3sleep02437504-21irqcore22:55:180
2396672261,2sleep10-21swapper/122:28:121
2374268261,3sleep22374343-21fschecks_time22:15:142
2358505261,3sleep22358540-21apt-get22:05:112
2341574261,2sleep12341583-21ssh21:52:401
2273467261,3sleep2222-21plymouthd21:10:192
2252140260,3sleep1222-21plymouthd20:52:421
2239278260,1sleep10-21swapper/120:43:031
2232049260,3sleep02232130-21/usr/sbin/munin20:35:260
2226546261,3sleep10-21swapper/120:35:021
2208694261,3sleep12209221-21grep20:20:181
2206897261,2sleep20-21swapper/220:16:062
2181891261,2sleep12143035-21kworker/u16:1-events_unbound20:00:141
2169087260,3sleep22169120-21apt-get19:50:132
2167957261,3sleep22167987-21ntpq19:45:232
2162742260,3sleep02162896-21df_inode19:45:130
2161569260,3sleep02161602-21ntpq19:40:250
2155688260,1sleep20-21swapper/219:37:012
2121143260,3sleep2222-21plymouthd19:10:272
2473922250,2sleep22473956-21ntpq23:15:252
2397658250,2sleep00-21swapper/022:30:110
2373450251,2sleep02271696-21diskmemload22:14:070
2350637251,2sleep02350674-21apt-get22:00:120
2326726250,2sleep0222-21plymouthd21:45:010
2258433251,2sleep12115261-21cyclictest20:55:551
2244693250,2sleep12244865-21strings20:45:211
2213399250,2sleep0222-21plymouthd20:21:130
2194658250,2sleep1222-21plymouthd20:10:081
2136939251,2sleep0222-21plymouthd19:25:050
2121306250,2sleep0222-21plymouthd19:11:100
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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