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2026-08-25 - 00:10
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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 Mon Aug 24, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
205890323600,1sleep20-21swapper/210:35:002
220175721040,2sleep2222-21plymouthd12:05:172
1769211993128,1cyclictest0-21swapper/308:40:193
1769211992623,1cyclictest0-21swapper/312:20:323
1769211992623,1cyclictest0-21swapper/308:00:163
1769211992522,1cyclictest0-21swapper/310:40:323
1769211992522,1cyclictest0-21swapper/309:20:243
1769211992320,1cyclictest0-21swapper/311:40:213
1769211992320,1cyclictest0-21swapper/307:20:153
176921199230,19cyclictest1912572-21turbostat09:00:003
176921199230,19cyclictest1912572-21turbostat09:00:003
1769211992219,1cyclictest0-21swapper/312:00:233
1769211992219,1cyclictest0-21swapper/311:00:193
1769211992219,1cyclictest0-21swapper/310:00:323
176921199221,15cyclictest2003971-21taskset10:00:013
176921199212,14cyclictest2127428-21taskset11:15:223
1769211992118,1cyclictest0-21swapper/309:15:173
1769211992017,1cyclictest0-21swapper/309:50:013
1769211992017,1cyclictest0-21swapper/308:20:203
1769211992017,1cyclictest0-21swapper/307:40:193
176921199201,15cyclictest2184886-21taskset11:55:003
176921199201,15cyclictest1873702-21taskset08:26:113
176921199201,14cyclictest2090348-21turbostat10:55:003
176921199201,14cyclictest2051080-21taskset10:29:563
176921199201,13cyclictest2248197-21taskset12:35:013
20417702190,9sleep02035399-21sendmail-msp10:20:480
176921199192,13cyclictest1828713-21taskset07:50:273
1769211991916,1cyclictest0-21swapper/312:25:223
1769211991916,1cyclictest0-21swapper/310:20:113
1769211991916,1cyclictest0-21swapper/309:50:123
1769211991916,1cyclictest0-21swapper/309:35:243
1769211991916,1cyclictest0-21swapper/309:00:283
176921199191,14cyclictest2169357-21chrt11:45:013
176921199191,14cyclictest2151118-21taskset11:30:223
176921199191,14cyclictest1958807-21taskset09:30:183
176921199191,14cyclictest1861133-21taskset08:19:453
176921199191,14cyclictest1829376-21chrt07:55:123
176921199191,13cyclictest1925654-21taskset09:10:013
1769211991816,1cyclictest0-21swapper/311:05:183
1769211991815,1cyclictest0-21swapper/311:40:003
1769211991815,1cyclictest0-21swapper/311:25:273
1769211991815,1cyclictest0-21swapper/311:20:123
1769211991815,1cyclictest0-21swapper/307:25:173
176921199181,14cyclictest2215916-21taskset12:13:563
176921199181,13cyclictest2223612-21taskset12:18:253
176921199181,13cyclictest2190531-21taskset11:55:243
176921199181,13cyclictest2081109-21taskset10:46:083
176921199181,13cyclictest2058080-21taskset10:32:353
176921199181,13cyclictest2033696-21taskset10:15:323
176921199181,13cyclictest1919313-21chrt09:05:123
176921199181,13cyclictest1899599-21taskset08:47:323
176921199181,13cyclictest1880331-21taskset08:33:413
176921199181,13cyclictest1816755-21taskset07:45:143
1769211991810,6cyclictest22463652sleep312:30:403
22456992171,5sleep12245738-21ntpq12:30:231
20274512170,8sleep22027609-21latency_hist10:14:592
176921199178,6cyclictest19058792sleep308:51:303
1769211991714,1cyclictest0-21swapper/309:40:253
1769211991714,1cyclictest0-21swapper/307:15:253
176921199171,13cyclictest2060673-21taskset10:35:173
176921199171,13cyclictest2026141-21taskset10:11:233
176921199171,13cyclictest1774715-21taskset07:10:213
176921199171,12cyclictest2208499-21taskset12:09:553
176921199171,12cyclictest2090593-21taskset10:55:023
176921199171,12cyclictest1949430-21taskset09:25:093
176921199171,12cyclictest1886516-21taskset08:35:293
176921199171,12cyclictest1809487-21taskset07:36:123
176921199171,12cyclictest1803070-21taskset07:31:033
20750142161,12sleep02075142-21cpuspeed_turbos10:45:120
17960642161,4sleep01796111-21ntp_states07:25:230
176921199166,7cyclictest18474102sleep308:05:243
1769211991613,1cyclictest0-21swapper/311:10:133
176921199161,12cyclictest2012135-21taskset10:05:103
176921199161,12cyclictest1848588-21taskset08:10:043
17632422160,2sleep30-21swapper/307:05:143
21281902151,3sleep02128196-21ssh11:15:530
20195882150,5sleep22019594-21ssh10:09:552
19939192140,6sleep01993963-21ntpq09:50:240
19322662141,2sleep20-21swapper/209:12:102
19247182141,5sleep01924962-21sed09:05:260
20947792130,3sleep02094781-21kthreadcore10:55:190
20430642130,4sleep22043069-21sh10:24:262
17687942130,2sleep00-21swapper/007:06:190
22107192121,8sleep22212450-21tr12:10:182
21931002121,4sleep02192770-21sendmail-msp12:00:150
21283402121,9sleep12128341-21diskmemload11:16:221
21064832120,9sleep22106489-21ssh11:05:122
20660072124,2sleep0151ktimers/010:38:000
20600192121,8sleep22060671-21uname10:35:172
19728772121,8sleep21972899-21cat09:40:122
19484822121,7sleep01948488-21ssh09:23:140
18357462122,7sleep21835779-21apt-get08:00:142
21667392111,7sleep12166834-21collect211:40:231
20213812111,6sleep12022251-21ssh10:10:181
19873332110,8sleep11987335-21ssh09:47:291
19729932115,3sleep186188-21systemd-journal09:40:151
19549962111,7sleep01955163-21timerwakeupswit09:25:270
18757052111,7sleep00-21swapper/008:30:170
18628452113,5sleep21863612-21cat08:20:182
21947422101,6sleep12196153-21kthreadcore12:00:191
21693772100,7sleep22169085-21apt-get11:45:052
21596412100,3sleep22159647-21ssh11:35:432
20906952101,5sleep12090701-21ssh10:55:121
20746342100,3sleep22074640-21ssh10:44:592
20730622101,6sleep12073068-21ssh10:40:371
19886442101,5sleep1222-21plymouthd09:50:131
19867062100,7sleep01986712-21ssh09:45:350
19454882101,6sleep20-21swapper/209:20:202
18614812102,5sleep11861214-21sendmail-msp08:20:131
2254697291,2sleep20-21swapper/212:37:012
2248470291,5sleep12248674-21hddtemp_smartct12:35:161
2230961290,2sleep1222-21plymouthd12:21:331
2114275290,2sleep12114316-21ssh11:10:121
2111716291,4sleep12111755-21ntpq11:05:221
2082514291,5sleep12082519-21diskmemload10:49:591
2067291290,6sleep02067391-21sort10:40:160
2034283290,6sleep12034289-21ssh10:17:121
2025056291,5sleep02025200-21ntpq10:10:210
1993817291,4sleep21993865-21ntpq09:50:232
1971193290,1sleep00-21swapper/009:36:130
1963722290,2sleep21963728-21ssh09:32:062
1940175295,2sleep00-21swapper/009:17:170
1912332290,2sleep0222-21plymouthd08:57:200
1912332290,2sleep0222-21plymouthd08:57:200
1905868290,1sleep20-21swapper/208:51:212
1876425290,6sleep11878210-21kthreadcore08:30:191
1864730291,5sleep01866216-21cut08:20:200
1856986291,6sleep00-21swapper/008:15:190
1816105290,1sleep00-21swapper/007:42:360
1786233290,6sleep11787503-21kthreadcore07:20:201
1784091290,2sleep00-21swapper/007:19:260
1774873291,5sleep21774968-21sort07:10:262
1769841290,6sleep11770492-21cut07:10:171
2247639280,1sleep00-21swapper/012:34:110
2245747281,3sleep22245786-21ntpq12:30:242
2230569281,4sleep0222-21plymouthd12:20:320
2217621281,4sleep02218388-21grep12:15:180
2209853283,2sleep1331ktimers/112:10:181
2200275284,2sleep22200281-21ssh12:03:582
2183976282,3sleep1222-21plymouthd11:52:341
2174003284,2sleep10-21swapper/111:45:201
2167672280,1sleep0222-21plymouthd11:41:020
2154070280,5sleep02154480-21irqcore11:35:170
2146228282,3sleep02146327-21irqcore11:30:160
2145331280,2sleep22145337-21ssh11:29:382
2137030281,4sleep02137036-21ssh11:23:260
2136884280,2sleep2222-21plymouthd11:23:042
2114317280,5sleep22034803-21kworker/u16:0+rpciod11:10:132
2114272281,4sleep00-21swapper/011:10:110
2113792282,3sleep0222-21plymouthd11:09:270
2104687282,2sleep2222-21plymouthd11:00:552
2088846281,4sleep12088852-21ssh10:50:521
2082520281,4sleep22082577-21/usr/sbin/munin10:50:002
2065216280,2sleep12065222-21ssh10:35:441
2056518281,4sleep02056664-21ntpq10:30:220
2019625280,5sleep02019690-21latency_hist10:10:010
2004223280,5sleep02003970-21sendmail-msp10:00:110
2001610281,4sleep12001660-21ntpq09:55:231
1987921281,4sleep21899445-21kworker/u16:2+xprtiod09:49:062
1965080281,4sleep11965119-21apt-get09:35:101
1963866280,5sleep0222-21plymouthd09:32:270
1963482280,2sleep10-21swapper/109:31:211
1941729281,4sleep11941930-21hddtemp_smartct09:20:151
1939918280,2sleep11939924-21ssh09:16:381
1899472280,2sleep0222-21plymouthd08:45:540
1855044281,3sleep21855047-21apt-get08:15:132
1842159280,1sleep00-21swapper/008:05:050
1837687280,5sleep1222-21plymouthd08:00:211
1829351281,4sleep21829373-21apt-get07:55:112
1823841281,4sleep21824409-21ps07:50:152
1822981281,3sleep11823003-21apt-get07:50:101
1808975282,3sleep01809097-21python307:35:250
1808846281,3sleep11808889-21ntpq07:35:221
1803309280,5sleep01768986-21kworker/0:1+kacpid07:34:100
1797636280,5sleep21798038-21sed07:30:152
1790914281,3sleep21790911-21apt-get07:25:142
1783847280,5sleep1222-21plymouthd07:16:191
2239241270,5sleep02239247-21ssh12:27:450
2222995270,1sleep22223001-21ssh12:16:412
2222701270,4sleep12222707-21ssh12:15:561
2206343271,3sleep02206394-21ntp_states12:05:240
2201027271,2sleep10-21swapper/112:05:131
2191321272,2sleep0222-21plymouthd11:56:060
2185163270,2sleep1222-21plymouthd11:55:111
2184872271,3sleep20-21swapper/211:55:002
2169422271,3sleep02169459-21apt-get11:45:110
2168420270,4sleep22168424-21ssh11:43:132
2143218271,4sleep12143263-21ntpq11:25:241
2131493271,4sleep12129742-21sendmail-msp11:20:191
2127383271,3sleep22127426-21ntpq11:15:212
2103985271,3sleep12104028-21ntpq11:00:261
2101162271,3sleep02102443-21cut11:00:210
2089894270,1sleep00-21swapper/010:53:470
2084234271,3sleep22085571-21cut10:50:162
2050522270,1sleep22050526-21ssh10:28:232
2048947271,4sleep02048979-21ntpq10:25:250
2040283271,4sleep12040867-21missed_timers10:20:211
2028196270,4sleep02028747-21sed10:15:140
2010761270,4sleep12010767-21ssh10:02:031
2010317272,3sleep22003970-21sendmail-msp10:00:492
1998245270,5sleep21999816-21kthreadcore09:55:202
1972927271,4sleep01972992-21cpuspeed_turbos09:40:130
1956727270,4sleep11956733-21ssh09:29:251
1925720271,4sleep01925757-21apt-get09:10:110
1918669271,4sleep01912823-21kworker/u16:4+events_unbound09:00:410
1914313271,3sleep2222-21plymouthd09:00:192
1899613270,1sleep20-21swapper/208:47:442
1887143270,1sleep10-21swapper/108:40:051
1880735271,3sleep11880767-21apt-get08:35:121
1874302270,3sleep21874335-21apt-get08:30:122
1873644270,1sleep00-21swapper/008:25:290
1869342271,4sleep21870941-21kthreadcore08:25:192
1848201270,1sleep20-21swapper/208:08:182
1847496271,4sleep10-21swapper/108:05:261
1816605271,3sleep11816602-21apt-get07:45:121
1816233270,3sleep2222-21plymouthd07:44:142
1810130273,1sleep10-21swapper/107:40:121
1790580270,1sleep00-21swapper/007:24:440
1784429271,3sleep2222-21plymouthd07:20:132
1775463271,3sleep0222-21plymouthd07:12:530
1768790270,3sleep1222-21plymouthd07:06:161
1764925271,2sleep20-21swapper/207:05:172
2254471261,3sleep02254474-21sh12:36:190
2232471260,1sleep20-21swapper/212:25:032
2231225260,1sleep20-21swapper/212:22:172
2208892261,3sleep02208894-21apt-get12:10:130
2191974260,1sleep20-21swapper/211:57:562
2177740261,2sleep00-21swapper/011:50:160
2145858260,3sleep22146020-21diskstats11:30:142
2145244260,2sleep0222-21plymouthd11:29:240
2097472260,3sleep2222-21plymouthd10:58:022
2051462260,3sleep12051619-21diskstats10:30:151
2048695261,2sleep10-21swapper/110:25:221
2029477260,4sleep22031046-21cut10:15:162
2018529260,3sleep12018535-21ssh10:06:571
2003880260,1sleep00-21swapper/009:59:550
1965122260,3sleep2222-21plymouthd09:35:112
1956935261,2sleep2222-21plymouthd09:29:582
1939902260,3sleep21939908-21ssh09:16:352
1925762260,3sleep10-21swapper/109:10:121
1925258260,3sleep2222-21plymouthd09:08:162
1918743260,1sleep10-21swapper/109:01:381
1911500261,3sleep21911579-21ntpq08:55:222
1911500261,3sleep21911579-21ntpq08:55:212
1906867261,2sleep10-21swapper/108:55:171
1906867261,2sleep10-21swapper/108:55:171
1906077260,1sleep10-21swapper/108:54:041
1899684260,2sleep1222-21plymouthd08:48:391
1893210260,3sleep2222-21plymouthd08:42:512
1886785260,3sleep0222-21plymouthd08:39:000
1886055260,3sleep21886177-21sensors_temp08:35:252
1868458261,2sleep10-21swapper/108:25:181
1860833261,2sleep10-21swapper/108:15:561
1854466260,1sleep00-21swapper/008:11:300
1848788260,3sleep21848853-21tune2fs08:10:162
1848598260,1sleep10-21swapper/108:10:111
1835784261,3sleep01835935-21df_inode08:00:160
1835390260,3sleep1222-21plymouthd07:59:111
1828725260,3sleep0222-21plymouthd07:50:370
1822496260,2sleep2222-21plymouthd07:47:192
1821831260,3sleep01821868-21ntpq07:45:240
1803849261,2sleep20-21swapper/207:35:162
1790878260,2sleep1222-21plymouthd07:25:131
1776577260,3sleep2222-21plymouthd07:15:032
2238081250,2sleep12238189-21ssh12:25:261
2160791251,2sleep10-21swapper/111:38:551
2150947250,3sleep12151071-21ntpq11:30:211
1925133250,2sleep1222-21plymouthd09:06:391
1905978250,2sleep0222-21plymouthd08:52:470
1893183251,2sleep00-21swapper/008:42:280
1835150250,2sleep0222-21plymouthd07:56:070
1803150250,2sleep1222-21plymouthd07:32:061
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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