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2026-11-14 - 02:18
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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 Fri Nov 13, 2026 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2018650993128,1cyclictest0-21swapper/312:20:183
2018650993128,1cyclictest0-21swapper/309:20:183
2018650993128,1cyclictest0-21swapper/309:00:253
2018650993027,1cyclictest0-21swapper/309:40:203
2018650992926,1cyclictest0-21swapper/310:05:173
2018650992926,1cyclictest0-21swapper/310:05:163
2018650992825,1cyclictest0-21swapper/311:05:263
2018650992825,1cyclictest0-21swapper/308:20:153
2018650992725,1cyclictest0-21swapper/310:20:003
2018650992724,1cyclictest0-21swapper/312:40:023
2018650992624,1cyclictest0-21swapper/311:05:013
2018650992623,1cyclictest0-21swapper/307:40:243
2018650992612,10cyclictest2486761-21sleep12:30:003
2018650992522,1cyclictest0-21swapper/311:41:413
2018650992522,1cyclictest0-21swapper/310:30:153
2018650992522,1cyclictest0-21swapper/310:01:583
2018650992512,9cyclictest2059161-21sleep07:40:003
2018650992421,1cyclictest0-21swapper/311:35:223
2018650992421,1cyclictest0-21swapper/308:40:133
2018650992421,1cyclictest0-21swapper/307:45:153
2018650992421,1cyclictest0-21swapper/307:20:213
2018650992320,1cyclictest0-21swapper/312:02:373
2018650992320,1cyclictest0-21swapper/311:30:113
2018650992311,8cyclictest2330539-21sleep10:50:003
2018650992310,10cyclictest2046313-21sleep07:29:593
2018650992219,1cyclictest0-21swapper/310:25:193
2018650992210,8cyclictest2213462-21sleep09:34:593
24001792211,11sleep12400185-21ssh11:33:111
201865099218,9cyclictest2148842-21sleep08:50:003
201865099218,4cyclictest23695422sleep311:15:003
2018650992118,1cyclictest0-21swapper/310:40:193
2018650992118,1cyclictest0-21swapper/309:45:253
2018650992118,1cyclictest0-21swapper/309:15:253
2018650992110,8cyclictest2221252-21sleep09:39:593
21427272200,1sleep20-21swapper/208:45:102
20263212200,1sleep10-21swapper/107:15:021
201865099209,7cyclictest22684352sleep310:10:143
2018650992018,1cyclictest0-21swapper/309:30:013
2018650992017,1cyclictest0-21swapper/310:35:263
2018650992017,1cyclictest0-21swapper/307:15:243
2018650992016,1cyclictest0-21swapper/311:20:003
2018650992016,1cyclictest0-21swapper/308:00:163
201865099201,15cyclictest2128659-21taskset08:30:213
201865099201,14cyclictest2433894-21taskset11:55:163
201865099201,14cyclictest2180930-21taskset09:11:203
201865099196,9cyclictest2471077-21turbostat12:20:003
201865099193,13cyclictest2455061-21taskset12:08:393
2018650991916,1cyclictest0-21swapper/312:30:153
2018650991916,1cyclictest0-21swapper/310:20:233
2018650991916,1cyclictest0-21swapper/308:40:013
201865099188,7cyclictest2155219-21sleep08:55:013
201865099188,7cyclictest2050276-21taskset07:30:203
201865099182,13cyclictest2337257-21taskset10:52:033
2018650991815,1cyclictest0-21swapper/311:20:113
201865099181,13cyclictest2174412-21taskset09:09:573
22894472171,2sleep22227679-21kworker/u16:4+ext4-rsv-conversion10:20:242
201865099176,8cyclictest2018846-21taskset07:10:123
201865099175,9cyclictest2078330-21taskset07:54:123
2018650991714,1cyclictest0-21swapper/310:55:233
2018650991714,1cyclictest0-21swapper/308:05:263
2018650991713,1cyclictest0-21swapper/311:25:113
201865099171,13cyclictest2416735-21taskset11:45:023
2018650991711,3cyclictest2110417-21sleep08:20:003
201865099171,12cyclictest2251081-21taskset09:56:183
201865099171,12cyclictest2121241-21taskset08:25:193
201865099170,10cyclictest24312172sleep311:52:333
23733112160,8sleep02374960-21sed11:15:170
201865099165,8cyclictest2103008-21chrt08:10:193
201865099164,9cyclictest2455797-21taskset12:10:043
201865099161,12cyclictest2237105-21taskset09:50:063
201865099161,12cyclictest2161205-21taskset08:55:253
201865099160,12cyclictest2078732-21chrt07:55:133
24897452151,11sleep02491627-21cut12:30:180
22368262151,10sleep12236839-21cron09:50:001
22319622156,6sleep02233842-21cut09:45:170
21159582156,6sleep02115986-21ntpq08:20:240
24314292141,9sleep12431434-21ssh11:53:071
24035852141,3sleep00-21swapper/011:35:180
2018650991311,1cyclictest0-21swapper/307:10:013
24377362120,8sleep02437779-21ntpq11:55:220
24153142121,8sleep22408656-21sendmail-msp11:41:502
23217512120,9sleep12314900-21sendmail-msp10:42:151
23211512121,8sleep02314900-21sendmail-msp10:40:340
21971002120,8sleep12197104-21ssh09:22:501
21822212121,8sleep22182447-21cat09:15:012
21420802121,8sleep02136023-21sendmail-msp08:40:360
20910112120,10sleep20-21swapper/208:02:102
20906232122,7sleep03594167-21systemd-journal08:00:280
20594512121,8sleep12059528-21cpuspeed_turbos07:40:121
24472602110,8sleep12447266-21ssh12:03:411
24402272111,2sleep00-21swapper/012:00:110
24168282110,8sleep02416900-21cpuspeed_turbos11:45:120
23770962116,3sleep22174435-21diskmemload11:19:172
23538722110,1sleep10-21swapper/111:04:561
22269032110,8sleep22226948-21ntpq09:40:232
25001112100,2sleep02174435-21diskmemload12:35:240
23831482100,2sleep22383173-21ssh11:20:242
23240052100,7sleep12324849-21kthreadcore10:45:171
23141452100,7sleep12314151-21ssh10:37:541
22922962100,8sleep12292491-21cut10:25:151
22750742107,1sleep10-21swapper/110:12:461
22198022100,7sleep02219808-21ssh09:35:550
22059652101,5sleep12205973-21ssh09:30:121
21903692100,7sleep22190375-21ssh09:20:062
21747362102,5sleep014-21ksoftirqd/009:10:100
21490842101,5sleep22149117-21apt-get08:50:122
21328272100,7sleep02134762-21kthreadcore08:35:200
21165382101,6sleep22071878-21kworker/u16:1+flush-8:008:21:192
20850902102,4sleep10-21swapper/108:00:121
2429723290,6sleep02429867-21ssh11:50:220
2393388291,4sleep02393412-21apt-get11:30:090
2392924290,1sleep20-21swapper/211:29:392
2367654290,1sleep20-21swapper/211:10:262
2360159291,5sleep12283255-21kworker/u16:2+flush-8:011:05:371
2339027294,3sleep22339449-21irqcore10:55:162
2329931290,2sleep22329937-21ssh10:48:212
2291919292,4sleep22291912-21apt-get10:25:122
2162273291,6sleep02162825-21sed09:00:160
2149280291,5sleep12149468-21grep08:50:151
2081588290,6sleep02083549-21kthreadcore07:55:180
2040177291,4sleep12040210-21apt-get07:25:101
2033762291,5sleep12033916-21df_inode07:20:121
2017911291,4sleep12018138-21users07:05:251
2013614293,3sleep02013878-21kthreadcore07:05:160
2484485281,3sleep02484524-21ntpq12:25:220
2471442280,5sleep12471593-21/usr/sbin/munin12:20:121
2423370280,1sleep10-21swapper/111:47:251
2413275281,4sleep02408656-21sendmail-msp11:40:200
2409531281,4sleep12410377-21cut11:40:171
2385647280,5sleep02385775-21grep11:25:110
2374961281,4sleep12375106-21netstat11:15:191
2344630280,6sleep12344636-21ssh10:56:031
2336115281,4sleep22336165-21ntpq10:50:222
2335968281,4sleep02336068-21ntpq10:50:200
2321215280,5sleep22314172-21kworker/u16:3+xprtiod10:40:452
2312632281,4sleep02312678-21ntpq10:35:210
2306360280,1sleep10-21swapper/110:32:541
2305581280,1sleep00-21swapper/010:30:430
2281653280,5sleep02281764-21diskmemload10:15:240
2268418281,3sleep22268434-21ssh10:10:132
2267164280,5sleep02091025-21kworker/0:2+kacpid10:07:310
2267164280,5sleep02091025-21kworker/0:2+kacpid10:07:300
2260122281,4sleep02260130-21ssh10:04:340
2252942281,1sleep2171rcu_preempt10:00:162
2250187281,4sleep02250240-21ntp_states09:55:200
2244017281,5sleep02174435-21diskmemload09:53:190
2236467280,1sleep20-21swapper/209:48:562
2227929281,4sleep12221276-21sendmail-msp09:41:431
2216312284,2sleep22218137-21kthreadcore09:35:172
2204447280,1sleep00-21swapper/009:26:330
2203393281,4sleep22203436-21ntpq09:25:202
2189993281,4sleep22190001-21ssh09:19:512
2182577281,3sleep12182582-21apt-get09:15:131
2161441280,1sleep20-21swapper/208:58:182
2147929280,1sleep00-21swapper/008:45:220
2104507281,4sleep02104696-21/usr/sbin/munin08:15:140
2103663280,1sleep00-21swapper/008:11:030
2072261280,1sleep10-21swapper/107:50:061
2046564281,3sleep02046586-21apt-get07:30:130
2039631281,4sleep02033496-21sendmail-msp07:21:270
2470437270,4sleep02470443-21ssh12:18:160
2469767271,2sleep172-21kcompactd012:16:211
2466259271,4sleep22468092-21grep12:15:162
2463049271,4sleep22432155-21kworker/u16:2+xprtiod12:14:252
2454282271,3sleep22454286-21ssh12:06:302
2449199271,3sleep10-21swapper/112:05:171
2446978270,1sleep20-21swapper/212:02:512
2432818270,4sleep12433005-21irqcore11:55:151
2430730271,3sleep20-21swapper/211:51:122
2401153271,2sleep20-21swapper/211:35:122
2387433270,4sleep12389190-21tr11:25:161
2383268270,4sleep02383401-21cat11:20:270
2377689271,3sleep12377727-21apt-get11:20:111
2368722271,3sleep02368728-21ssh11:12:410
2360272271,1sleep22283255-21kworker/u16:2+events_power_efficient11:05:542
2336070271,3sleep12336108-21ntpq10:50:211
2290200271,3sleep02283757-21sendmail-msp10:21:020
2289401271,3sleep12289438-21ntpq10:20:231
2275883271,3sleep02275939-21munin-run10:15:010
2260626271,3sleep22260660-21apt-get10:05:122
2260626271,3sleep22260660-21apt-get10:05:122
2251156270,5sleep10-21swapper/109:56:371
2238121270,4sleep12239059-21tr09:50:171
2220608270,5sleep12220614-21ssh09:38:171
2211267271,3sleep02211300-21ntpq09:30:230
2189844270,2sleep00-21swapper/009:19:280
2174778271,2sleep12155060-21kworker/u16:3-xprtiod09:10:111
2137686270,4sleep12139122-21cut08:40:171
2136447271,4sleep20-21swapper/208:40:152
2128617274,1sleep20-21swapper/208:30:212
2110378271,3sleep10-21swapper/108:20:001
2096510270,1sleep00-21swapper/008:05:200
2084763271,2sleep10-21swapper/108:00:001
2078216270,1sleep20-21swapper/207:52:482
2064893273,2sleep21999304-21kworker/u16:2+flush-8:007:40:252
2059446271,3sleep02059448-21apt-get07:40:110
2059126271,3sleep12059187-21sendmail-msp07:40:011
2059101271,1sleep20-21swapper/207:39:422
2055281271,4sleep02057121-21cut07:35:190
2039633274,1sleep20-21swapper/207:21:302
2499961261,3sleep22500061-21ntpq12:35:222
2487050261,2sleep20-21swapper/212:30:122
2476809261,2sleep02476838-21ntpq12:20:230
2471594261,3sleep22471664-21ssh12:20:132
2448497260,3sleep00-21swapper/012:05:170
2401097260,1sleep10-21swapper/111:35:031
2395374260,3sleep22397177-21cut11:30:152
2354298261,2sleep00-21swapper/011:05:120
2346591261,3sleep02346100-21sendmail-msp11:00:140
2329219260,1sleep00-21swapper/010:46:200
2313608260,4sleep20-21swapper/210:36:192
2299670261,2sleep22299707-21apt-get10:30:102
2298583260,1sleep00-21swapper/010:27:510
2281995260,1sleep20-21swapper/210:15:262
2267171260,4sleep10-21swapper/110:07:311
2267171260,4sleep10-21swapper/110:07:311
2258921260,3sleep12258927-21ssh10:01:141
2244955260,3sleep20-21swapper/209:55:102
2239060260,4sleep22240786-21kthreadcore09:50:182
2227685260,4sleep00-21swapper/009:40:580
2207148261,2sleep20-21swapper/209:30:162
2198135261,3sleep12198134-21ssh09:25:021
2196800260,4sleep00-21swapper/009:21:570
2173458260,3sleep12173502-21ntpq09:05:231
2167750261,3sleep12161637-21sendmail-msp09:01:291
2161861261,3sleep23594167-21systemd-journal09:00:102
2161325260,1sleep00-21swapper/008:56:480
2160615261,2sleep12160658-21ntpq08:55:211
2129840261,2sleep10-21swapper/108:35:121
2129370260,1sleep00-21swapper/008:32:300
2117545261,3sleep02118318-21sed08:25:170
2109426260,3sleep22109467-21ntpq08:15:202
2103675260,1sleep20-21swapper/208:11:132
2093522261,2sleep20-21swapper/208:05:182
2072272261,2sleep02072305-21apt-get07:50:130
2071056261,2sleep00-21swapper/007:45:200
2040213260,2sleep20-21swapper/207:25:102
2033209260,1sleep00-21swapper/007:17:070
2027392260,1sleep20-21swapper/207:15:122
2024153260,3sleep22024276-21python307:10:242
2494757250,2sleep12494797-21ssh12:35:131
2491629251,2sleep10-21swapper/112:30:191
2486007250,3sleep12486013-21ssh12:28:031
2485273250,3sleep20-21swapper/212:26:002
2458268250,3sleep12460102-21grep12:10:181
2457257250,2sleep00-21swapper/012:10:170
2437634250,2sleep20-21swapper/211:55:202
2367287250,2sleep12367331-21ssh11:10:211
2346356251,2sleep20-21swapper/211:00:082
2340301251,2sleep02342048-21kthreadcore10:55:180
2277958250,2sleep12163576-21kworker/u16:0+rpciod10:15:171
2170214250,3sleep22172015-21kthreadcore09:05:202
2168329250,2sleep02168332-21apt-get09:05:140
2150567250,3sleep02152314-21kthreadcore08:50:180
2142691250,2sleep10-21swapper/108:45:111
2129878250,2sleep20-21swapper/208:35:132
2123113250,1sleep10-21swapper/108:28:381
2119364251,2sleep20-21swapper/208:25:192
2116473251,1sleep10-21swapper/108:20:291
2068713251,2sleep10-21swapper/107:45:181
2065891250,2sleep20-21swapper/207:45:112
2047509251,2sleep10-21swapper/107:30:181
2043313250,3sleep02045119-21expr07:25:170
2018471250,1sleep20-21swapper/207:09:352
2416751240,2sleep2421rcuc/211:45:062
2123523240,1sleep10-21swapper/108:30:121
2103853242,1sleep10-21swapper/108:13:241
2092507240,2sleep10-21swapper/108:05:171
2078683240,2sleep20-21swapper/207:55:052
2048469240,2sleep22049630-21kthreadcore07:30:192
2019004240,1sleep00-21swapper/007:10:130
2018809240,1sleep10-21swapper/107:10:101
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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