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2026-05-20 - 00:18
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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 Tue May 19, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1702440993229,1cyclictest0-21swapper/311:30:003
1702440992724,1cyclictest0-21swapper/312:25:003
1702440992623,1cyclictest0-21swapper/311:40:013
19376392250,3sleep21880893-21kworker/u16:0+xprtiod10:00:162
1702440992421,1cyclictest0-21swapper/307:30:003
1702440992414,7cyclictest1858143-21sleep09:10:013
1702440992320,1cyclictest0-21swapper/311:00:003
1702440992219,1cyclictest0-21swapper/311:15:183
1702440992219,1cyclictest0-21swapper/308:15:143
1702440992219,1cyclictest0-21swapper/307:20:003
1702440992118,1cyclictest0-21swapper/310:15:283
1702440992115,3cyclictest1868431-21chrt09:15:183
170244099211,15cyclictest1762057-21turbostat07:55:003
170244099211,14cyclictest1858143-21sleep09:14:553
1702440992017,1cyclictest0-21swapper/310:40:123
1702440992017,1cyclictest0-21swapper/310:25:013
1702440992017,1cyclictest0-21swapper/309:50:173
170244099201,15cyclictest1998726-21taskset10:36:533
170244099201,14cyclictest2125914-21sleep12:00:003
19430822190,7sleep134-21ksoftirqd/110:00:301
170244099192,13cyclictest1990989-21taskset10:32:203
170244099192,13cyclictest1812865-21taskset08:30:523
1702440991917,1cyclictest0-21swapper/311:40:013
1702440991916,1cyclictest0-21swapper/312:10:273
170244099191,14cyclictest2140309-21taskset12:06:143
170244099191,14cyclictest2038666-21taskset11:03:353
170244099191,14cyclictest1905729-21chrt09:40:123
170244099191,14cyclictest1889618-21turbostat09:30:003
170244099191,14cyclictest1813532-21taskset08:35:133
170244099191,13cyclictest2126298-21chrt12:00:123
170244099191,13cyclictest1881837-21taskset09:25:003
170244099191,13cyclictest1749095-21chrt07:42:373
21286982181,7sleep12130383-21cut12:00:191
21114032186,4sleep02111887-21kthreadcore11:50:160
170244099182,13cyclictest2156986-21taskset12:18:213
170244099182,13cyclictest2023112-21taskset10:54:013
170244099182,12cyclictest1982490-21taskset10:25:303
1702440991816,1cyclictest0-21swapper/310:00:013
1702440991815,1cyclictest0-21swapper/311:50:013
1702440991815,1cyclictest0-21swapper/308:50:183
170244099181,13cyclictest2173333-21taskset12:29:553
170244099181,13cyclictest2068552-21taskset11:20:233
170244099181,13cyclictest2045763-21taskset11:06:203
170244099181,13cyclictest2013377-21taskset10:45:233
170244099181,13cyclictest1831386-21taskset08:45:193
170244099181,12cyclictest2047368-21taskset11:10:023
170244099181,12cyclictest2047368-21taskset11:10:013
170244099177,7cyclictest21736372sleep312:30:043
170244099172,12cyclictest1800165-21taskset08:22:223
170244099172,12cyclictest1780907-21taskset08:06:103
170244099172,12cyclictest1750967-21taskset07:45:183
170244099172,12cyclictest1708735-21taskset07:14:353
170244099172,11cyclictest1845541-21taskset09:00:023
1702440991714,1cyclictest0-21swapper/312:35:153
1702440991714,1cyclictest0-21swapper/311:30:133
1702440991714,1cyclictest0-21swapper/309:45:153
170244099171,13cyclictest2115524-21taskset11:50:183
170244099171,13cyclictest1947802-21taskset10:05:183
170244099171,12cyclictest1937212-21chrt10:00:123
170244099171,12cyclictest1806515-21taskset08:26:193
170244099171,12cyclictest1781668-21taskset08:10:153
170244099171,12cyclictest1768095-21chrt07:55:363
170244099171,12cyclictest1742549-21taskset07:35:483
170244099171,12cyclictest1736146-21taskset07:30:543
170244099171,12cyclictest1723567-21taskset07:23:413
170244099170,13cyclictest1823338-21taskset08:40:183
20399502161,11sleep02040374-21cut11:05:180
1702440991613,1cyclictest0-21swapper/308:55:183
170244099161,12cyclictest1903993-21taskset09:36:193
170244099161,12cyclictest1889881-21taskset09:30:053
170244099161,12cyclictest1768724-21taskset08:00:103
170244099161,11cyclictest1952941-21taskset10:10:073
20290542151,5sleep12029107-21ntp_states10:55:241
18974702151,6sleep01897704-21ssh09:35:010
16962952151,7sleep2222-21plymouthd07:05:132
21583852130,10sleep12159077-21cut12:20:161
19265352131,4sleep01926679-21ntpq09:50:200
21801832120,9sleep12180191-21ssh12:32:111
21575852120,9sleep12157683-21sed12:20:001
20403762120,9sleep12041117-21sh11:05:191
19058862121,7sleep01905985-21/usr/sbin/munin09:40:140
17427032121,1sleep00-21swapper/007:37:300
17038332121,8sleep21704871-21tr07:10:182
20831872111,7sleep02083976-21memory11:30:190
20690922111,7sleep12069096-21ssh11:20:341
20628192110,2sleep12062825-21ssh11:19:581
20448132110,8sleep22044861-21ld11:05:242
20303952112,6sleep2222-21plymouthd10:57:352
19818512111,7sleep21981899-21ntpq10:25:222
19532092110,8sleep11953427-21cat10:10:141
19392872110,7sleep01940912-21grep10:00:180
18509022111,7sleep21851013-21smartctl09:00:272
17559732110,2sleep00-21swapper/007:50:130
17454512110,1sleep2421rcuc/207:40:172
170244099119,1cyclictest0-21swapper/307:10:013
21569792100,7sleep22156985-21ssh12:18:212
21474652102,5sleep02147505-21/usr/sbin/munin12:10:250
20618222106,2sleep21702431-21cyclictest11:17:102
20388632101,6sleep10-21swapper/111:04:061
20324822105,3sleep22033224-21kthreadcore11:00:182
19922892100,7sleep11992295-21ssh10:35:081
19550762101,6sleep01956857-21kthreadcore10:10:170
19202402100,7sleep00-21swapper/009:47:350
18910012101,2sleep21891924-21kthreadcore09:30:172
18903812100,7sleep11891000-21sed09:30:161
18508552101,6sleep11850899-21ps09:00:261
18003102100,3sleep0222-21plymouthd08:24:120
17299412100,2sleep1222-21plymouthd07:28:171
16962592100,5sleep11696292-21apt-get07:05:121
2187002290,7sleep10-21swapper/112:35:281
2147506290,5sleep12147529-21grep12:10:261
2140742291,5sleep1222-21plymouthd12:07:291
2124958290,7sleep10-21swapper/111:57:271
2124540292,4sleep02124543-21sh11:56:210
2100706290,2sleep12100712-21ssh11:41:031
2093279290,6sleep12093281-21ssh11:37:181
2092694290,6sleep02092700-21ssh11:35:410
2087144290,3sleep2222-21plymouthd11:35:152
2070988291,2sleep10-21swapper/111:25:071
2022072290,3sleep12022078-21ssh10:51:071
2021265290,3sleep2222-21plymouthd10:50:242
1991642290,2sleep21991648-21ssh10:34:082
1967000290,3sleep21967006-21ssh10:16:122
1911074291,4sleep21911110-21ssh09:40:242
1882479291,5sleep21883087-21sed09:25:162
1873292292,4sleep21863531-21kworker/u16:4+nfsiod09:18:272
1872622290,2sleep00-21swapper/009:16:320
1858767290,2sleep11858911-21ssh09:10:161
1821602291,5sleep21823337-21grep08:40:182
1807084291,4sleep2222-21plymouthd08:30:122
1775124290,6sleep01775239-21cpuspeed_turbos08:05:120
1773779291,5sleep21773866-21ntpq08:00:212
1768331290,2sleep0222-21plymouthd07:58:390
1730808291,4sleep01731748-21irqstats07:30:160
1709136294,2sleep21709431-21timerandwakeup07:15:032
1696454291,4sleep01696643-21sed07:05:150
2180704280,5sleep22180709-21sh12:33:362
2155262280,5sleep02155294-21ntpq12:15:220
2140739280,1sleep0222-21plymouthd12:07:280
2123473281,4sleep22123622-21ssh11:55:232
2109176280,2sleep0222-21plymouthd11:47:310
2084346280,5sleep20-21swapper/211:30:252
2061927280,5sleep02061933-21ssh11:17:360
2054451280,2sleep22054455-21ssh11:13:332
2054451280,2sleep22054455-21ssh11:13:332
2013466281,4sleep12013595-21python310:45:271
2007959280,2sleep2222-21plymouthd10:45:032
2006150280,2sleep12006156-21ssh10:40:491
1997627281,4sleep21997671-21ntpq10:35:252
1984410281,3sleep11984442-21apt-get10:30:101
1968694280,5sleep01858129-21diskmemload10:20:030
1952614280,5sleep01952699-21appstreamcli10:10:010
1935302280,2sleep21935308-21ssh09:55:552
1934676280,1sleep00-21swapper/009:55:250
1919693282,3sleep2222-21plymouthd09:46:052
1888981282,4sleep11888872-21kworker/u16:4+xprtiod09:28:201
1887321281,4sleep01887365-21ntpq09:25:220
1880427282,3sleep1222-21plymouthd09:21:221
1857910280,2sleep2222-21plymouthd09:07:322
1838736280,1sleep0222-21plymouthd08:53:270
1832731281,4sleep21832763-21apt-get08:50:122
1831519281,4sleep11831561-21ntpq08:45:221
1820707281,4sleep11821601-21tr08:40:171
1813495281,3sleep1222-21plymouthd08:35:131
1812250282,3sleep01812287-21ntpq08:30:220
1781028281,4sleep2222-21plymouthd08:07:472
1773912281,4sleep01773959-21ntp_states08:00:230
1767791280,6sleep11768057-21grep07:55:271
1761760280,2sleep2222-21plymouthd07:51:352
1757300281,4sleep11758266-21cut07:50:181
1744545281,4sleep11745449-21kthreadcore07:40:161
1743645282,3sleep01744542-21irqrtprio07:40:150
1717015280,1sleep00-21swapper/007:17:010
1703045280,5sleep11703832-21irqrtprio07:10:171
2188296270,4sleep22188300-21ssh12:37:452
2181591270,3sleep02181597-21ssh12:35:150
2171038271,3sleep02171090-21ntpq12:25:200
2167268271,4sleep12168845-21tr12:25:171
2164623270,1sleep00-21swapper/012:22:440
2143849270,4sleep22145460-21kthreadcore12:10:192
2133831270,4sleep2222-21plymouthd12:05:022
2127685270,4sleep02128281-21ssh12:00:180
2126256271,3sleep22126293-21apt-get12:00:122
2116444270,1sleep20-21swapper/211:50:422
2116439270,1sleep10-21swapper/111:50:411
2094629271,3sleep22094662-21apt-get11:40:122
2086117270,4sleep12086123-21ssh11:34:131
2076558271,4sleep02076684-21cat11:25:270
2068517271,4sleep22068549-21ntpq11:20:232
2064610270,4sleep02065879-21cat11:20:170
2053844270,1sleep00-21swapper/011:11:510
2053844270,1sleep00-21swapper/011:11:510
2034799271,4sleep02036642-21tr11:00:200
2025228270,4sleep02026588-21cut10:55:190
2007571271,3sleep2222-21plymouthd10:44:432
2006858270,4sleep0222-21plymouthd10:42:440
1999606270,5sleep01858129-21diskmemload10:39:250
1984621271,3sleep01984765-21tail10:30:130
1977028270,4sleep01977307-21ssh10:25:160
1969906270,4sleep21970812-21grep10:20:172
1969217270,4sleep11969905-21irqrtprio10:20:161
1968110270,1sleep00-21swapper/010:19:150
1951461271,4sleep11943439-21kworker/u16:1+nfsiod10:06:491
1927932271,3sleep11927936-21ssh09:52:051
1926727271,3sleep21926771-21ntpq09:50:222
1898299270,4sleep01899231-21irqstats09:35:170
1864589270,5sleep21864595-21ssh09:11:012
1858645271,3sleep01858766-21perl09:10:150
1851964270,1sleep10-21swapper/109:05:111
1845096270,1sleep20-21swapper/208:57:542
1839146270,4sleep11838896-21apt-get08:55:041
1819374270,4sleep2222-21plymouthd08:36:492
1801133270,5sleep21800645-21/usr/sbin/munin08:25:192
1793675274,1sleep20-21swapper/208:16:572
1793606270,1sleep10-21swapper/108:16:041
1768727270,4sleep11768760-21apt-get08:00:121
1749556271,2sleep10-21swapper/107:45:131
1741995270,4sleep21742034-21ntp_states07:35:232
1730003271,3sleep2222-21plymouthd07:29:022
1725760270,4sleep01727504-21cut07:25:190
1723412270,3sleep1222-21plymouthd07:21:441
2168846261,2sleep20-21swapper/212:25:182
2157684260,4sleep20-21swapper/212:20:012
2109400260,1sleep20-21swapper/211:48:062
2102473261,2sleep1222-21plymouthd11:45:051
2071442260,3sleep22071968-21irqcore11:25:162
2047426260,3sleep12047459-21apt-get11:10:121
2047426260,3sleep12047459-21apt-get11:10:121
2022539260,1sleep00-21swapper/010:52:270
1983364260,3sleep1222-21plymouthd10:27:541
1962398260,3sleep11963984-21tr10:15:191
1952999260,3sleep21953005-21ssh10:10:112
1946465261,2sleep20-21swapper/210:05:182
1936282261,2sleep10-21swapper/109:58:311
1913579260,4sleep11913620-21ssh09:45:121
1912223260,4sleep10-21swapper/109:42:121
1904036260,4sleep20-21swapper/209:36:272
1897711260,1sleep10-21swapper/109:35:021
1881271260,4sleep00-21swapper/009:23:460
1880274261,2sleep21880282-21ssh09:20:592
1872407260,1sleep10-21swapper/109:15:571
1851353260,1sleep00-21swapper/009:00:370
1839152260,2sleep0222-21plymouthd08:55:070
1838510260,3sleep1222-21plymouthd08:50:311
1825902260,1sleep00-21swapper/008:42:450
1806537260,3sleep0222-21plymouthd08:26:370
1800644261,2sleep11800677-21apt-get08:25:141
1800184260,3sleep2222-21plymouthd08:22:382
1793822260,3sleep0222-21plymouthd08:18:480
1787340260,1sleep00-21swapper/008:12:180
1781509260,3sleep11781545-21grep08:10:141
1781470260,1sleep20-21swapper/208:10:112
1768433260,1sleep20-21swapper/207:59:572
1755554260,3sleep0222-21plymouthd07:48:320
1755317260,3sleep2222-21plymouthd07:45:302
1736279260,1sleep20-21swapper/207:32:392
1723525260,2sleep0222-21plymouthd07:23:110
1711216261,2sleep10-21swapper/107:15:141
1707904260,3sleep01707937-21ntpq07:10:240
2173715250,2sleep00-21swapper/012:30:140
2100676250,3sleep00-21swapper/011:40:580
2008459250,3sleep02009017-21ps10:45:170
1852003250,3sleep01852150-21df09:05:140
1832069250,2sleep2222-21plymouthd08:45:322
1827754251,2sleep00-21swapper/008:45:170
1818718250,2sleep01818765-21ntp_states08:35:230
1807061250,2sleep1222-21plymouthd08:30:031
1794212250,2sleep10-21swapper/108:20:121
1774819250,2sleep1222-21plymouthd08:05:011
1738522250,3sleep11740255-21grep07:35:181
1730386250,2sleep11730536-21df_inode07:30:131
1723398250,2sleep2222-21plymouthd07:21:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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