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2026-06-19 - 11:22
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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 Jun 19, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16052702370,12sleep244-21ksoftirqd/219:50:172
1547989993028,1cyclictest0-21swapper/322:30:003
1547989992926,1cyclictest0-21swapper/321:45:013
19908352270,7sleep00-21swapper/000:10:350
1547989992723,1cyclictest0-21swapper/321:30:273
1547989992623,1cyclictest0-21swapper/322:00:093
1547989992522,1cyclictest0-21swapper/323:45:233
1547989992522,1cyclictest0-21swapper/321:20:133
1547989992320,1cyclictest0-21swapper/321:50:013
1547989992220,1cyclictest0-21swapper/323:05:003
1547989992219,1cyclictest0-21swapper/322:20:083
1547989992219,1cyclictest0-21swapper/321:15:013
1547989992219,1cyclictest0-21swapper/320:40:123
1547989992219,1cyclictest0-21swapper/319:15:153
1547989992111,6cyclictest1969058-21turbostat00:00:003
154798999209,9cyclictest0-21swapper/321:25:333
154798999208,1cyclictest0-21swapper/321:52:313
154798999202,14cyclictest1930230-21turbostat23:35:003
154798999201,9cyclictest1914512-21taskset23:24:403
1547989992018,1cyclictest0-21swapper/320:50:003
1547989992017,1cyclictest0-21swapper/323:25:163
1547989992017,1cyclictest0-21swapper/322:45:253
1547989992017,1cyclictest0-21swapper/321:05:143
1547989992017,1cyclictest0-21swapper/320:00:123
1547989992017,1cyclictest0-21swapper/300:10:003
154798999201,14cyclictest2016061-21chrt00:30:113
154798999201,14cyclictest1564593-21taskset19:20:153
15501602190,1sleep30-21swapper/319:10:173
154798999199,8cyclictest0-21swapper/320:50:263
154798999198,8cyclictest1906846-21turbostat23:20:003
1547989991916,1cyclictest0-21swapper/319:50:173
1547989991916,1cyclictest0-21swapper/300:40:003
1547989991916,1cyclictest0-21swapper/300:20:273
154798999191,15cyclictest1867624-21taskset22:54:203
154798999191,14cyclictest1991060-21taskset00:11:223
154798999191,13cyclictest1782115-21turbostat22:00:013
154798999190,16cyclictest0-21swapper/320:15:013
17489452180,10sleep21749090-21/usr/sbin/munin21:35:262
17097882180,8sleep11709836-21ntp_offset21:10:231
154798999189,7cyclictest0-21swapper/322:45:003
154798999188,1cyclictest0-21swapper/321:01:243
154798999188,1cyclictest0-21swapper/321:01:243
154798999187,8cyclictest1588624-21turbostat19:40:003
154798999187,1cyclictest0-21swapper/323:35:243
154798999181,9cyclictest1620917-21taskset20:05:013
1547989991816,1cyclictest0-21swapper/320:30:133
1547989991815,1cyclictest0-21swapper/322:55:193
1547989991815,1cyclictest0-21swapper/300:02:133
154798999181,14cyclictest1805790-21chrt22:15:033
154798999181,13cyclictest2008287-21chrt00:25:143
154798999181,13cyclictest1998215-21taskset00:15:273
154798999181,13cyclictest1961163-21taskset23:54:543
154798999181,13cyclictest1891549-21taskset23:10:123
154798999181,13cyclictest1804980-21taskset22:13:313
154798999181,13cyclictest1746450-21taskset21:35:183
154798999181,12cyclictest1835176-21taskset22:30:313
154798999181,12cyclictest1659438-21chrt20:35:123
154798999181,12cyclictest1652716-21taskset20:29:553
154798999181,11cyclictest1595201-21taskset19:45:013
19452792171,9sleep11945283-21ssh23:43:551
154798999178,1cyclictest0-21swapper/323:05:153
1547989991714,1cyclictest0-21swapper/320:15:163
1547989991714,1cyclictest0-21swapper/319:55:183
154798999171,12cyclictest1841861-21taskset22:35:203
154798999171,12cyclictest1841861-21taskset22:35:203
154798999171,12cyclictest1790207-21taskset22:05:093
154798999171,12cyclictest1685074-21chrt20:55:133
154798999171,12cyclictest1601354-21taskset19:49:103
154798999171,12cyclictest1575696-21taskset19:29:093
154798999170,13cyclictest1945710-21turbostat23:45:003
18580282161,11sleep01858106-21/usr/sbin/munin22:45:240
16145532161,11sleep11614293-21sendmail-msp20:00:111
15572382160,3sleep01557746-21irqrtprio19:15:160
154798999161,12cyclictest1579606-21taskset19:30:183
154798999161,11cyclictest1646046-21taskset20:21:333
154798999160,13cyclictest1712197-21chrt21:15:013
19984202150,6sleep0221rcuc/000:15:280
18281232151,10sleep21828121-21ssh22:27:342
17339182141,9sleep11733924-21ssh21:25:551
15475232140,1sleep30-21swapper/319:05:453
18837642131,9sleep00-21swapper/023:05:130
17268302130,5sleep11726836-21ssh21:22:581
16776982131,9sleep01677914-21sed20:45:290
16068992131,9sleep11606942-21collect219:50:211
15417602132,6sleep21541793-21apt-get19:05:122
20160342123,5sleep22016058-21apt-get00:30:112
20144322127,3sleep01704060-21diskmemload00:26:160
19839372120,9sleep21983943-21ssh00:08:062
18989562120,9sleep11898960-21ssh23:14:561
18820732121,8sleep11882079-21ssh23:01:011
18762152122,2sleep2171rcu_preempt23:00:142
18716312120,8sleep21873255-21/usr/sbin/munin22:55:212
18520202120,5sleep11852026-21ssh22:44:131
15903002122,7sleep01591786-21kthreadcore19:40:180
19314842110,8sleep21932448-21cut23:35:182
19140922110,8sleep21914096-21ssh23:23:232
18915082112,5sleep21891542-21apt-get23:10:122
18284932110,8sleep11828499-21ssh22:28:421
16993002110,8sleep11700488-21tr21:05:181
16549462110,8sleep11656676-21cut20:30:181
16401272110,8sleep086188-21systemd-journal20:20:110
16005752111,7sleep01600623-21proc_pri19:45:230
15632252111,2sleep20-21swapper/219:20:112
20082822102,4sleep22008281-21apt-get00:25:142
19541742100,7sleep11954514-21sed23:50:161
18525812100,7sleep21852618-21apt-get22:45:102
18119052100,7sleep01811910-21sh22:15:460
17980562101,6sleep11798062-21ssh22:10:131
17742652100,7sleep21774271-21ssh21:54:592
17044592101,5sleep01704619-21diskstats21:10:140
16722992101,5sleep1222-21plymouthd20:45:141
16478042101,6sleep1222-21plymouthd20:25:171
16401622100,7sleep186188-21systemd-journal20:20:121
16209412102,4sleep11620963-21apt-get20:05:131
15431512104,3sleep01544161-21grep19:05:180
2018602290,6sleep12020276-21kthreadcore00:30:181
2006966290,1sleep10-21swapper/100:22:161
1978585291,5sleep01979946-21cat00:05:190
1971557290,6sleep21973174-21kthreadcore00:00:202
1928089291,5sleep01928116-21ntp_states23:30:230
1914954291,5sleep11914977-21basename23:25:111
1859693290,3sleep11859699-21ssh22:48:541
1821472291,4sleep01821507-21apt-get22:25:120
1813647290,1sleep00-21swapper/022:20:070
1804705290,1sleep20-21swapper/222:12:432
1789713290,1sleep00-21swapper/022:04:230
1785327290,6sleep11787076-21kthreadcore22:00:191
1729547290,6sleep21731165-21cut21:25:202
1719992291,6sleep21719769-21sendmail-msp21:20:032
1718715290,2sleep11718721-21ssh21:17:051
1717589291,4sleep01717599-21ntpq21:15:230
1704408291,4sleep21704445-21apt-get21:10:122
1690979290,2sleep2222-21plymouthd20:57:132
1681492290,6sleep21683309-21kthreadcore20:50:202
1671080291,4sleep21671123-21ntpq20:40:212
1659402291,4sleep21659435-21apt-get20:35:122
1576042291,3sleep00-21swapper/019:30:120
1562255290,6sleep21556782-21/usr/sbin/munin19:15:262
1547526290,5sleep10-21swapper/119:05:471
2029280280,4sleep02029385-21/usr/sbin/munin00:35:260
2024004280,1sleep10-21swapper/100:35:151
2023761280,5sleep22023479-21apt-get00:35:042
2021258281,4sleep02021303-21ntpq00:30:210
1997906281,4sleep21997943-21ntpq00:15:232
1984144280,5sleep11984148-21ssh00:08:451
1937900281,4sleep01938107-21latency_hist23:40:010
1920240281,4sleep01920285-21ntpq23:25:220
1906310280,2sleep1222-21plymouthd23:18:331
1882066280,5sleep0222-21plymouthd23:01:000
1861998280,5sleep11863625-21kthreadcore22:50:191
1860415281,4sleep01860567-21df22:50:140
1850168281,4sleep01850216-21ntpq22:40:230
1843665282,3sleep2222-21plymouthd22:37:452
1843665282,3sleep2222-21plymouthd22:37:452
1838494280,5sleep11840092-21kthreadcore22:35:191
1838494280,5sleep11840092-21kthreadcore22:35:191
1836577280,2sleep0222-21plymouthd22:34:420
1807807281,4sleep11809473-21kthreadcore22:15:181
1773991280,1sleep0222-21plymouthd21:54:080
1765495280,5sleep21765498-21sh21:47:132
1764292281,4sleep01764332-21ntpq21:45:220
1757992280,2sleep0171rcu_preempt21:43:060
1743430280,4sleep01743436-21ssh21:35:120
1740912281,4sleep01740962-21ntpq21:30:230
1727798281,3sleep01727513-21apt-get21:25:060
1719188281,4sleep21601232-21kworker/u16:0+xprtiod21:18:302
1704043281,4sleep21704065-21munin-run21:10:002
1696643280,2sleep2171rcu_preempt21:00:222
1696643280,2sleep2171rcu_preempt21:00:222
1600446281,4sleep11600483-21ntpq19:45:201
1594753282,3sleep2222-21plymouthd19:41:242
1591787281,4sleep11593653-21cut19:40:191
1582441281,4sleep21582474-21apt-get19:35:112
1565926284,2sleep00-21swapper/019:20:170
2015582270,3sleep1222-21plymouthd00:29:381
2005585271,4sleep02005736-21ld00:20:220
2003137271,4sleep22004815-21grep00:20:202
1999124270,1sleep10-21swapper/100:17:111
1991498270,1sleep20-21swapper/200:12:352
1991010270,4sleep1222-21plymouthd00:11:091
1969339271,3sleep11969091-21sendmail-msp00:00:071
1967219271,3sleep11967415-21users23:55:301
1946188270,4sleep21946388-21hddtemp_smartct23:45:162
1944205270,1sleep00-21swapper/023:40:450
1929009270,1sleep10-21swapper/123:31:321
1914978271,3sleep21914994-21apt-get23:25:122
1896818271,3sleep0222-21plymouthd23:10:220
1890404272,3sleep10-21swapper/123:07:391
1866112270,4sleep21866274-21ssh22:50:282
1845792270,4sleep21846432-21cut22:40:172
1837764273,2sleep01838488-21ps22:35:180
1837764273,2sleep01838488-21ps22:35:180
1836299270,4sleep21720089-21kworker/u16:4+rpciod22:33:522
1797166271,3sleep0222-21plymouthd22:08:280
1790255271,3sleep10-21swapper/122:05:121
1781288270,1sleep20-21swapper/221:57:352
1781128270,4sleep11781134-21ssh21:57:101
1774641271,3sleep00-21swapper/021:55:130
1769336270,4sleep11771025-21cut21:50:171
1758935270,4sleep10-21swapper/121:45:031
1735620270,3sleep11735655-21apt-get21:30:121
1727357270,4sleep01704060-21diskmemload21:24:340
1690871270,1sleep10-21swapper/120:55:481
1684512270,3sleep0222-21plymouthd20:51:500
1683817271,3sleep11683851-21ntpq20:50:231
1671992270,4sleep01672219-21sort20:45:010
1652427270,3sleep2222-21plymouthd20:26:142
1641562271,3sleep20-21swapper/220:20:172
1633717270,4sleep10-21swapper/120:15:111
1633162270,3sleep2222-21plymouthd20:11:192
1620655270,1sleep20-21swapper/220:04:572
1614517271,3sleep086188-21systemd-journal20:00:100
1614138270,1sleep20-21swapper/219:58:482
1596960271,3sleep20-21swapper/219:45:172
1582058270,3sleep2222-21plymouthd19:33:302
1582030271,3sleep1222-21plymouthd19:33:091
1575762270,5sleep10-21swapper/119:30:011
1575498270,4sleep2222-21plymouthd19:26:372
1548423270,1sleep00-21swapper/019:10:150
1976710260,2sleep0222-21plymouthd00:04:350
1968801260,1sleep00-21swapper/023:59:300
1967734260,3sleep2222-21plymouthd23:56:232
1960096260,3sleep2222-21plymouthd23:51:462
1951233260,3sleep01951274-21ntpq23:45:220
1944942260,1sleep20-21swapper/223:42:522
1930556260,2sleep10-21swapper/123:35:131
1928677260,1sleep20-21swapper/223:30:372
1914500260,2sleep1222-21plymouthd23:24:381
1914386261,2sleep00-21swapper/023:24:170
1906303260,1sleep0222-21plymouthd23:18:320
1900689260,3sleep21901640-21kthreadcore23:15:172
1890568261,2sleep20-21swapper/223:08:082
1868197261,3sleep01868357-21df_inode22:55:150
1819033260,3sleep21819078-21ssh22:20:252
1816074260,3sleep11817716-21ssh22:20:201
1805783261,2sleep20-21swapper/222:15:032
1803389261,3sleep01803425-21ld22:10:240
1790263260,3sleep2222-21plymouthd22:05:132
1782415261,3sleep20-21swapper/222:00:042
1758143260,4sleep11758147-21ssh21:43:391
1757369260,4sleep21757373-21ssh21:41:152
1736103260,3sleep21737037-21ssh21:30:172
1702964261,3sleep01703084-21ntpq21:05:210
1697442260,2sleep0222-21plymouthd21:02:370
1697442260,2sleep0222-21plymouthd21:02:370
1697295260,1sleep10-21swapper/121:00:451
1697295260,1sleep10-21swapper/121:00:451
1686453261,3sleep01688015-21grep20:55:190
1678048260,2sleep2222-21plymouthd20:45:472
1665445260,1sleep00-21swapper/020:38:470
1665349260,1sleep10-21swapper/120:37:321
1658857260,1sleep00-21swapper/020:31:290
1658806260,2sleep2222-21plymouthd20:30:512
1639753260,1sleep00-21swapper/020:18:550
1633107260,1sleep00-21swapper/020:10:370
1627496260,3sleep1222-21plymouthd20:10:141
1626717260,1sleep00-21swapper/020:05:480
1621886261,3sleep2222-21plymouthd20:05:182
1614137261,2sleep10-21swapper/119:58:471
1610193260,4sleep01611962-21grep19:55:170
1601680260,1sleep00-21swapper/019:50:080
1582479261,3sleep0222-21plymouthd19:35:130
1575556260,1sleep00-21swapper/019:27:190
1563184261,2sleep10-21swapper/119:20:061
1562552260,1sleep10-21swapper/119:15:331
1548153260,3sleep2222-21plymouthd19:10:052
1959095250,2sleep01959145-21ntpq23:50:230
1952297250,2sleep1222-21plymouthd23:46:361
1870023250,2sleep1222-21plymouthd22:55:201
1830285250,3sleep11830958-21kthreadcore22:30:181
1749953250,2sleep1222-21plymouthd21:37:261
1667230251,2sleep11668421-21kthreadcore20:40:161
1646619250,2sleep00-21swapper/020:25:120
1639574250,2sleep2222-21plymouthd20:16:402
1582627250,3sleep11582695-21/usr/sbin/munin19:35:141
1554156250,2sleep1222-21plymouthd19:12:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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