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2026-06-21 - 11:42
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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 376 highest latencies:
System rackeslot8.osadl.org (updated Sun Jun 21, 2026 00:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2177760992926,1cyclictest0-21swapper/323:25:153
2177760992623,1cyclictest0-21swapper/300:39:593
2177760992320,1cyclictest0-21swapper/300:15:153
2177760992219,1cyclictest0-21swapper/320:20:133
2177760992219,1cyclictest0-21swapper/300:00:093
217776099220,18cyclictest2224804-21turbostat19:44:593
2177760992119,1cyclictest0-21swapper/323:44:493
2177760992119,1cyclictest0-21swapper/321:20:013
2177760992119,1cyclictest0-21swapper/319:30:183
2177760992118,1cyclictest0-21swapper/321:50:283
2177760992118,1cyclictest0-21swapper/300:30:163
2177760992118,1cyclictest0-21swapper/300:20:203
2177760992018,1cyclictest0-21swapper/322:20:013
2177760992017,1cyclictest0-21swapper/323:20:233
2177760992017,1cyclictest0-21swapper/322:40:113
2177760992017,1cyclictest0-21swapper/321:35:183
2177760992017,1cyclictest0-21swapper/321:10:203
2177760992017,1cyclictest0-21swapper/300:27:443
217776099201,14cyclictest2619333-21taskset00:13:243
217776099201,14cyclictest2457114-21taskset22:29:133
2177760991917,1cyclictest0-21swapper/320:57:063
2177760991917,1cyclictest0-21swapper/319:55:163
2177760991916,1cyclictest0-21swapper/322:10:203
2177760991916,1cyclictest0-21swapper/321:10:013
2177760991916,1cyclictest0-21swapper/320:41:563
2177760991916,1cyclictest0-21swapper/319:55:003
2177760991916,1cyclictest0-21swapper/319:45:143
2177760991916,1cyclictest0-21swapper/319:11:173
217776099191,14cyclictest2481693-21taskset22:45:163
217776099191,14cyclictest2307486-21taskset20:45:253
217776099184,10cyclictest2558391-21chrt23:35:123
2177760991816,1cyclictest0-21swapper/323:56:153
2177760991816,1cyclictest0-21swapper/320:31:133
2177760991816,1cyclictest0-21swapper/319:29:103
2177760991816,0cyclictest0-21swapper/321:24:513
2177760991815,1cyclictest0-21swapper/323:00:053
2177760991815,1cyclictest0-21swapper/322:56:503
2177760991815,1cyclictest0-21swapper/322:20:333
2177760991815,1cyclictest0-21swapper/320:28:293
2177760991815,1cyclictest0-21swapper/319:40:013
217776099181,13cyclictest2588148-21taskset23:52:233
217776099181,13cyclictest2557169-21taskset23:32:273
217776099181,13cyclictest2557169-21taskset23:32:263
217776099181,13cyclictest2520400-21taskset23:10:143
217776099181,13cyclictest2410913-21taskset21:59:253
217776099181,13cyclictest2371177-21taskset21:30:433
217776099181,13cyclictest2364214-21taskset21:28:053
217776099181,13cyclictest2269595-21taskset20:16:183
22830012170,5sleep02283081-21grep20:30:110
217776099172,11cyclictest2314457-21taskset20:51:133
2177760991715,1cyclictest0-21swapper/320:11:073
2177760991715,1cyclictest0-21swapper/319:20:023
2177760991714,1cyclictest0-21swapper/321:00:123
2177760991714,1cyclictest0-21swapper/320:04:253
2177760991714,1cyclictest0-21swapper/320:04:243
217776099171,13cyclictest2611527-21taskset00:08:123
217776099171,13cyclictest2472254-21taskset22:38:033
217776099171,13cyclictest2425183-21taskset22:05:553
217776099171,13cyclictest2411414-21taskset22:00:063
217776099171,13cyclictest2382047-21taskset21:40:173
217776099171,13cyclictest2192598-21taskset19:19:203
217776099171,12cyclictest2574158-21taskset23:45:143
217776099171,12cyclictest2494620-21taskset22:50:413
217776099171,12cyclictest2463882-21taskset22:31:123
217776099171,12cyclictest2295528-21turbostat20:40:013
217776099171,12cyclictest2256727-21taskset20:06:163
217776099170,13cyclictest2388621-21taskset21:45:133
21775212170,2sleep30-21swapper/319:08:473
25966912160,4sleep0222-21plymouthd23:59:590
217776099161,12cyclictest2532933-21taskset23:15:273
217776099161,12cyclictest2517787-21taskset23:05:333
22826982151,4sleep22282832-21latency_hist20:30:012
26278872140,1sleep00-21swapper/000:20:040
25862002140,10sleep02586771-21sed23:50:210
25799292140,2sleep20-21swapper/223:46:062
24939992141,9sleep22494039-21ntp_states22:50:252
23806962141,9sleep12380393-21sendmail-msp21:40:121
22705852141,9sleep02271137-21grep20:20:170
26493852130,10sleep22649391-21ssh00:31:052
25967062131,4sleep12596740-21munin-run00:00:011
25663232131,9sleep02566447-21grep23:40:150
24649802131,9sleep02464986-21ssh22:34:320
23556962131,9sleep12355700-21ssh21:20:361
25970252121,8sleep02596771-21sendmail-msp00:00:080
24731952121,8sleep12473199-21ssh22:40:061
24463202120,4sleep02447408-21memory22:20:200
24390592120,9sleep02439714-21cat22:15:190
24065652121,7sleep12408305-21grep21:55:201
23627842121,4sleep12362835-21ntp_states21:25:241
23154872120,8sleep02316422-21irqstats20:55:160
22150742120,9sleep12216957-21cut19:35:201
21919312120,9sleep02192045-21grep19:15:260
26496952110,2sleep0222-21plymouthd00:31:550
26409412111,7sleep22640987-21ntpq00:25:232
25799882110,7sleep02579994-21ssh23:46:150
25436842110,8sleep22544469-21cat23:25:172
25177752110,8sleep12517779-21ssh23:05:311
25110262110,9sleep00-21swapper/023:03:310
24794662110,8sleep02479472-21ssh22:41:370
24659022110,8sleep02466457-21/usr/sbin/munin22:35:160
24397152110,8sleep12439824-21ntpq22:15:201
24270952110,8sleep22427241-21head22:10:152
24264062110,1sleep20-21swapper/222:09:362
23947262110,1sleep1222-21plymouthd21:46:381
23715722110,8sleep02371578-21ssh21:31:570
23080462112,7sleep2672-21dbus-daemon20:46:372
23015902110,4sleep1222-21plymouthd20:40:431
22903292110,8sleep12291295-21grep20:35:171
22569782111,2sleep20-21swapper/220:09:292
22245672110,1sleep00-21swapper/019:42:200
21715382111,4sleep10-21swapper/119:05:131
26283322100,1sleep20-21swapper/200:20:182
25583502101,4sleep12558383-21apt-get23:35:111
25413362100,2sleep00-21swapper/023:21:350
25192612101,2sleep20-21swapper/223:09:582
24651002100,7sleep12465108-21ssh22:34:521
24569372100,3sleep0222-21plymouthd22:28:380
23731332100,7sleep12373252-21fw_packets21:35:151
23638512100,2sleep20-21swapper/221:26:572
23489692100,2sleep0222-21plymouthd21:18:370
23176382101,7sleep22319462-21tr20:55:192
23138852101,6sleep00-21swapper/020:50:240
22971892103,5sleep02298708-21cat20:40:170
22817622101,1sleep1171rcu_preempt20:25:231
22502882100,1sleep10-21swapper/120:00:541
22502882100,1sleep10-21swapper/120:00:531
22311002100,3sleep1222-21plymouthd19:48:271
2657688290,1sleep20-21swapper/200:37:492
2650201290,6sleep12650205-21ssh00:33:281
2641028290,1sleep00-21swapper/000:25:250
2611983290,7sleep10-21swapper/100:09:261
2597087291,4sleep12596771-21sendmail-msp00:00:131
2571974290,3sleep12571991-21ssh23:40:271
2540458291,5sleep22540498-21/usr/sbin/munin23:20:242
2524927291,5sleep02524968-21ntpq23:10:200
2487644291,1sleep0171rcu_preempt22:48:020
2484030290,6sleep12485882-21cut22:45:191
2481343291,5sleep22481692-21sed22:45:162
2480590290,1sleep20-21swapper/222:44:592
2463099291,5sleep22463145-21ntpq22:30:242
2449036290,7sleep10-21swapper/122:23:051
2447548291,5sleep22447595-21ntpq22:20:222
2426931290,6sleep12427094-21diskstats22:10:141
2418429290,6sleep02418431-21ssh22:03:480
2395369290,4sleep00-21swapper/021:48:410
2387839290,6sleep22387845-21ssh21:44:102
2341365290,2sleep2222-21plymouthd21:13:432
2340446290,7sleep10-21swapper/121:11:051
2329352290,6sleep22330980-21kthreadcore21:05:162
2327302290,3sleep0222-21plymouthd21:00:420
2321151290,1sleep10-21swapper/120:59:341
2251085290,7sleep10-21swapper/120:05:151
2237507290,3sleep2222-21plymouthd19:52:322
2225046291,4sleep22225079-21apt-get19:45:112
2218153291,2sleep00-21swapper/019:38:110
2211700290,7sleep00-21swapper/019:32:370
2186507291,5sleep22186540-21apt-get19:15:122
2176710291,4sleep02176759-21ntp_states19:05:240
2651037281,3sleep02651071-21apt-get00:35:120
2617750281,5sleep12617793-21ntpq00:10:231
2617602281,4sleep02617748-21ntpq00:10:220
2607086280,5sleep22608759-21cut00:05:192
2532546281,4sleep12532639-21ntpq23:15:211
2526067282,3sleep1222-21plymouthd23:12:021
2502065281,4sleep02502254-21users22:55:280
2466458280,5sleep12467223-21kthreadcore22:35:171
2449983280,6sleep10-21swapper/122:25:111
2441214281,4sleep22441220-21ssh22:17:502
2433546280,3sleep00-21swapper/022:12:580
2425098280,2sleep12425104-21ssh22:05:421
2402210280,6sleep22402214-21ssh21:50:562
2388103281,4sleep02388140-21munin-run21:44:590
2377039281,5sleep22378003-21ssh21:35:192
2355815281,4sleep0222-21plymouthd21:20:550
2349214281,4sleep12349220-21ssh21:19:181
2327917281,3sleep02327950-21apt-get21:05:100
2275384281,4sleep22275423-21ntpq20:20:222
2268912281,4sleep22268949-21ntpq20:15:222
2263292280,1sleep1222-21plymouthd20:12:591
2262525281,4sleep02262565-21ntpq20:10:220
2236735281,4sleep0222-21plymouthd19:50:220
2224620280,5sleep1222-21plymouthd19:43:011
2218110280,1sleep20-21swapper/219:37:372
2211822280,1sleep20-21swapper/219:34:122
2201317283,3sleep22203074-21kthreadcore19:25:192
2177958281,3sleep00-21swapper/019:10:120
2171574281,2sleep20-21swapper/219:05:132
2657026270,5sleep1222-21plymouthd00:35:521
2626303271,3sleep2222-21plymouthd00:16:172
2625431270,4sleep02625484-21ntp_states00:15:220
2611997271,3sleep0222-21plymouthd00:09:290
2597033270,1sleep20-21swapper/200:00:102
2581617271,3sleep1222-21plymouthd23:50:141
2573396272,3sleep2431ktimers/223:44:452
2564337271,3sleep2222-21plymouthd23:35:402
2563680271,3sleep02563733-21ntp_states23:35:220
2557487270,2sleep20-21swapper/223:33:192
2557487270,2sleep20-21swapper/223:33:182
2555862271,3sleep02555906-21ntpq23:30:210
2555862271,3sleep02555906-21ntpq23:30:210
2549373270,2sleep10-21swapper/123:27:241
2548851270,5sleep0222-21plymouthd23:25:510
2533079270,4sleep02533268-21users23:15:280
2517171270,4sleep02517224-21ntp_states23:05:220
2509495271,3sleep22509528-21ntpq23:00:242
2496370272,3sleep12496392-21apt-get22:55:131
2465667271,4sleep22455940-21kworker/u16:4+xprtiod22:35:142
2419413271,3sleep02419615-21hddtemp_smartct22:05:170
2412183270,4sleep22412965-21cut22:00:182
2411412270,4sleep12411178-21sendmail-msp22:00:041
2410842270,1sleep0222-21plymouthd21:59:160
2403693271,3sleep22403726-21apt-get21:55:132
2372889271,3sleep0222-21plymouthd21:35:060
2371958270,3sleep2222-21plymouthd21:33:122
2371886271,3sleep1222-21plymouthd21:32:511
2326743270,4sleep12326785-21ntpq21:00:231
2309046271,3sleep10-21swapper/120:50:171
2308626270,4sleep22308774-21df20:50:142
2308268270,3sleep0222-21plymouthd20:49:190
2295279271,3sleep2222-21plymouthd20:37:152
2295232270,2sleep00-21swapper/020:36:360
2288836270,4sleep1222-21plymouthd20:31:481
2269610270,3sleep1222-21plymouthd20:16:291
2257349271,3sleep2222-21plymouthd20:10:122
2256796270,1sleep00-21swapper/020:07:100
2244643270,5sleep22244840-21hddtemp_smartct20:00:142
2244643270,5sleep22244840-21hddtemp_smartct20:00:142
2233757271,4sleep12235570-21kthreadcore19:50:191
2218814272,2sleep2222-21plymouthd19:40:132
2191750271,3sleep12191789-21ntpq19:15:231
2627914261,2sleep12627662-21sendmail-msp00:20:131
2626371261,3sleep10-21swapper/100:16:271
2618667260,3sleep2222-21plymouthd00:11:162
2595308261,2sleep20-21swapper/223:55:452
2586881260,3sleep22586926-21ntpq23:50:222
2580528260,1sleep12580534-21ssh23:47:541
2557405260,2sleep12557409-21ssh23:33:061
2557405260,2sleep12557409-21ssh23:33:051
2538144261,2sleep10-21swapper/123:20:191
2534371260,3sleep22534377-21ssh23:18:472
2510254260,1sleep10-21swapper/123:01:071
2497340260,4sleep22498132-21kthreadcore22:55:192
2488686260,3sleep02488842-21diskstats22:50:150
2450267260,3sleep22450460-21if_eno222:25:162
2403258263,1sleep1321rcuc/121:54:201
2403243260,1sleep00-21swapper/021:54:100
2355848260,1sleep20-21swapper/221:21:012
2349236260,3sleep20-21swapper/221:19:232
2340666261,2sleep0222-21plymouthd21:11:410
2333039261,3sleep12333133-21ntpq21:05:191
2327414260,3sleep2222-21plymouthd21:02:002
2288996260,3sleep20-21swapper/220:33:492
2276624262,2sleep00-21swapper/020:25:140
2267170261,3sleep02268763-21latency20:15:200
2238003260,3sleep22238005-21apt-get19:55:132
2230890260,3sleep0222-21plymouthd19:45:450
2211602260,3sleep1222-21plymouthd19:31:221
2205478260,1sleep00-21swapper/019:29:540
2200314261,2sleep1222-21plymouthd19:25:181
2192936261,2sleep02192969-21apt-get19:20:100
2192928261,3sleep2222-21plymouthd19:20:052
2184084260,4sleep2222-21plymouthd19:14:562
2179324260,3sleep12179358-21kthreadcore19:10:181
2637058250,3sleep12638053-21kthreadcore00:25:181
2519615250,2sleep20-21swapper/223:10:102
2491528251,2sleep10-21swapper/122:50:201
2395057250,2sleep2222-21plymouthd21:47:422
2358941250,3sleep02360496-21kthreadcore21:25:200
2304612250,2sleep10-21swapper/120:45:201
2295782250,2sleep20-21swapper/220:40:102
2270213250,2sleep1222-21plymouthd20:20:131
2243853250,2sleep0222-21plymouthd19:56:070
2243286250,2sleep1222-21plymouthd19:55:241
2198766250,3sleep10-21swapper/119:21:001
2250262240,1sleep00-21swapper/020:00:330
2250262240,1sleep00-21swapper/020:00:320
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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