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2026-08-04 - 20:24
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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 Tue Aug 04, 2026 12:43:58)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
15258392490,3sleep1321rcuc/107:10:191
1523339992724,1cyclictest0-21swapper/309:20:273
1523339992623,1cyclictest0-21swapper/312:00:203
1523339992421,1cyclictest0-21swapper/308:05:013
1523339992320,1cyclictest0-21swapper/311:20:103
1523339992320,1cyclictest0-21swapper/310:20:003
1523339992220,0cyclictest0-21swapper/311:45:173
1523339992219,1cyclictest0-21swapper/310:45:163
152333999212,14cyclictest1851646-21taskset10:58:133
1523339992118,1cyclictest0-21swapper/312:25:153
1523339992118,1cyclictest0-21swapper/312:05:173
1523339992118,1cyclictest0-21swapper/311:40:143
1523339992118,1cyclictest0-21swapper/310:00:273
1523339992118,1cyclictest0-21swapper/309:40:273
1523339992118,1cyclictest0-21swapper/309:40:003
1523339992118,1cyclictest0-21swapper/309:40:003
1523339992118,1cyclictest0-21swapper/307:15:023
1523339992117,1cyclictest0-21swapper/311:00:213
152333999211,15cyclictest1994274-21chrt12:30:143
19826912201,15sleep01983663-21/usr/sbin/munin12:20:210
152333999202,13cyclictest1931427-21chrt11:50:133
1523339992017,1cyclictest0-21swapper/312:20:173
1523339992017,1cyclictest0-21swapper/311:30:413
1523339992017,1cyclictest0-21swapper/311:13:013
1523339992017,1cyclictest0-21swapper/310:43:293
1523339992017,1cyclictest0-21swapper/310:30:003
1523339992017,1cyclictest0-21swapper/309:00:163
1523339992017,1cyclictest0-21swapper/308:15:223
1523339992017,1cyclictest0-21swapper/307:20:183
152333999201,15cyclictest1819829-21taskset10:37:193
15622702190,1sleep10-21swapper/107:35:191
1523339991916,1cyclictest0-21swapper/310:50:113
1523339991916,1cyclictest0-21swapper/310:20:163
1523339991916,1cyclictest0-21swapper/307:40:213
152333999191,14cyclictest1978195-21turbostat12:20:003
152333999191,14cyclictest1741918-21taskset09:49:003
152333999191,14cyclictest1741918-21taskset09:49:003
152333999191,14cyclictest1654328-21taskset08:50:143
152333999191,14cyclictest1626848-21taskset08:25:213
152333999191,13cyclictest1653890-21turbostat08:50:003
18841602181,5sleep21883885-21sendmail-msp11:20:092
152333999189,6cyclictest16087902sleep308:13:403
1523339991816,1cyclictest0-21swapper/308:20:183
1523339991815,1cyclictest0-21swapper/312:35:193
1523339991815,1cyclictest0-21swapper/310:30:073
1523339991815,1cyclictest0-21swapper/309:50:213
1523339991815,1cyclictest0-21swapper/309:14:593
152333999181,14cyclictest1647241-21taskset08:41:563
152333999181,13cyclictest1913018-21taskset11:35:253
152333999181,13cyclictest1860657-21chrt11:05:153
152333999181,13cyclictest1780530-21taskset10:11:543
152333999181,13cyclictest1750539-21chrt09:55:133
152333999181,13cyclictest1640767-21taskset08:37:473
152333999181,13cyclictest1570863-21taskset07:45:163
152333999181,13cyclictest1551874-21taskset07:30:163
152333999181,13cyclictest1529720-21turbostat07:15:013
19310292170,4sleep21931103-21test11:50:002
152333999177,7cyclictest15973212sleep308:05:173
1523339991715,1cyclictest0-21swapper/307:50:183
152333999171,13cyclictest1945777-21taskset11:57:103
152333999171,13cyclictest1898513-21taskset11:27:033
152333999171,13cyclictest1898513-21taskset11:27:033
152333999171,13cyclictest1883197-21taskset11:18:183
152333999171,13cyclictest1883197-21taskset11:18:173
152333999171,13cyclictest1717312-21taskset09:31:043
152333999171,13cyclictest1694246-21taskset09:17:373
152333999171,13cyclictest1666450-21taskset08:57:173
152333999171,13cyclictest1550888-21taskset07:26:433
152333999171,12cyclictest1633831-21taskset08:30:263
152333999171,12cyclictest1583469-21taskset07:55:063
152333999171,12cyclictest1563574-21taskset07:35:413
152333999170,4cyclictest1962575-21turbostat12:14:563
1523339991615,1cyclictest0-21swapper/310:05:213
152333999161,12cyclictest1703301-21taskset09:25:063
152333999161,12cyclictest1678391-21taskset09:05:233
19290752151,10sleep11929336-21/usr/sbin/munin11:45:261
17886942151,10sleep01788696-21ssh10:17:420
17810582157,5sleep2979-21lldpd10:13:222
19366872141,9sleep21936736-21ntp_states11:50:252
19091472140,10sleep11909903-21cut11:35:201
18522582141,9sleep11852293-21latency_hist10:59:591
17637822140,2sleep00-21swapper/010:00:290
16027592141,8sleep21602792-21apt-get08:10:132
19924412132,3sleep0222-21plymouthd12:25:550
16951092130,3sleep11695255-21latency_hist09:20:001
19942272120,9sleep11994268-21ssh12:30:121
19305412121,7sleep01930547-21ssh11:48:380
18686662120,9sleep01868760-21/usr/sbin/munin11:10:140
16859182121,8sleep21685922-21ssh09:11:112
15235352120,3sleep21523568-21apt-get07:10:122
19938602110,8sleep21993864-21ssh12:29:492
18984272110,8sleep21898433-21ssh11:26:512
18984272110,8sleep21898433-21ssh11:26:512
18605942110,5sleep21718255-21kworker/u16:3+rpciod11:05:112
17958572111,3sleep21789611-21sendmail-msp10:20:392
17586702111,7sleep21758383-21/usr/sbin/munin10:00:192
17565792110,8sleep21756584-21ssh09:56:052
17494582110,8sleep11749465-21ssh09:53:081
17268722110,8sleep11726608-21sendmail-msp09:40:091
17007572110,2sleep01700795-21ssh09:20:240
16445272110,8sleep21646116-21cut08:40:202
15898892110,1sleep00-21swapper/008:00:090
15229162111,5sleep30-21swapper/307:06:293
19767522100,3sleep0222-21plymouthd12:16:010
19708712100,7sleep11970672-21/usr/sbin/munin12:15:131
19636662100,7sleep21964334-21kthreadcore12:10:172
19621572101,6sleep00-21swapper/012:08:540
19524662101,6sleep21946878-21sendmail-msp12:00:242
19481842101,5sleep11948869-21cut12:00:171
19388302101,3sleep11938835-21diskmemload11:54:411
19177112100,7sleep11918607-21ssh11:40:221
18364312100,1sleep20-21swapper/210:49:432
18050662100,7sleep01805071-21sh10:30:000
17883092101,6sleep1222-21plymouthd10:16:371
17490452101,6sleep21749049-21ssh09:51:582
17305672100,7sleep21731989-21kthreadcore09:40:222
17125662101,6sleep01713081-21cat09:30:180
17103602100,6sleep1222-21plymouthd09:28:461
16592942101,5sleep21659333-21ntpq08:50:222
16545942100,7sleep11655447-21irqrtprio08:50:171
16431112101,2sleep10-21swapper/108:40:191
16155992101,7sleep20-21swapper/208:20:112
15516042100,7sleep11551719-21perl07:30:161
15436762101,6sleep21538318-21sendmail-msp07:20:222
15171752101,4sleep10-21swapper/107:05:141
1970030292,4sleep0222-21plymouthd12:14:040
1969073290,6sleep11679528-21diskmemload12:11:281
1960601291,5sleep11960846-21tail12:05:271
1907164290,2sleep2222-21plymouthd11:34:242
1868944290,6sleep21869455-21irqrtprio11:10:152
1868456291,4sleep11868497-21ssh11:10:101
1858660293,4sleep11718255-21kworker/u16:3+xprtiod11:00:361
1852656292,4sleep21852685-21apt-get11:00:122
1829460290,6sleep11829791-21cut10:45:171
1827212291,6sleep11718255-21kworker/u16:3+xprtiod10:40:551
1826405292,4sleep21826443-21ntpq10:40:242
1807472290,6sleep21809075-21kthreadcore10:30:172
1805072291,5sleep11805132-21unin-run10:30:011
1796679291,4sleep11796687-21ssh10:23:311
1771651291,4sleep11771682-21ntpq10:05:231
1743186290,1sleep00-21swapper/009:50:170
1733903290,2sleep0222-21plymouthd09:43:290
1633725290,1sleep20-21swapper/208:30:262
1620828291,5sleep11620865-21ntpq08:20:231
1608759290,2sleep0222-21plymouthd08:13:160
1517139291,3sleep01517172-21apt-get07:05:120
2009170280,2sleep12009176-21ssh12:38:551
1992324280,4sleep1222-21plymouthd12:25:311
1985268280,2sleep11985274-21ssh12:22:471
1977312280,1sleep20-21swapper/212:17:392
1955060282,3sleep21955097-21apt-get12:05:122
1939348281,4sleep01939501-21df_inode11:55:150
1907024280,2sleep0222-21plymouthd11:34:030
1852155281,2sleep0222-21plymouthd10:59:380
1836941280,4sleep01836947-21ssh10:50:120
1802910281,4sleep21802944-21ntpq10:25:242
1758029280,5sleep01758167-21sed10:00:000
1740025281,4sleep21740068-21ntpq09:45:242
1740025281,4sleep21740068-21ntpq09:45:232
1717168281,5sleep11717172-21sh09:30:441
1703377281,3sleep21703379-21apt-get09:25:142
1672093281,4sleep186188-21systemd-journal09:00:241
1661331280,2sleep10-21swapper/108:55:181
1660929280,5sleep01661328-21irqcore08:55:170
1659982280,1sleep0222-21plymouthd08:51:330
1647178280,1sleep00-21swapper/008:41:060
1623479282,3sleep1222-21plymouthd08:25:211
1621452281,4sleep01615370-21sendmail-msp08:20:340
1614266280,6sleep10-21swapper/108:15:221
1577095281,3sleep11577098-21apt-get07:50:121
1538538281,5sleep10-21swapper/107:20:061
1531540283,2sleep10-21swapper/107:15:041
1522236281,3sleep21522275-21ntpq07:05:232
2007387270,1sleep00-21swapper/012:35:260
1999577270,5sleep21999621-21ssh12:30:252
1983984270,5sleep21978238-21sendmail-msp12:20:272
1946371271,3sleep2222-21plymouthd11:58:502
1939504271,3sleep1222-21plymouthd11:55:161
1915553271,3sleep21915588-21apt-get11:40:152
1907084271,3sleep11907090-21ssh11:34:121
1892330271,3sleep01892532-21hddtemp_smartct11:25:170
1892330271,3sleep01892532-21hddtemp_smartct11:25:160
1891766271,3sleep01892025-21latency_hist11:25:000
1884174271,4sleep11883885-21sendmail-msp11:20:121
1877981270,5sleep01879408-21kthreadcore11:15:190
1877981270,5sleep01879408-21kthreadcore11:15:180
1862880271,3sleep0222-21plymouthd11:05:200
1860031270,4sleep0222-21plymouthd11:04:190
1850046271,3sleep2222-21plymouthd10:55:242
1842917270,1sleep20-21swapper/210:50:582
1821547271,3sleep01821919-21cut10:40:180
1820382270,1sleep0222-21plymouthd10:38:540
1788364271,3sleep21788370-21ssh10:16:462
1779697270,4sleep01779857-21sed10:10:270
1773127270,2sleep21773133-21ssh10:08:002
1750490271,3sleep11750507-21basename09:55:121
1735234270,5sleep01735839-21irqrtprio09:45:170
1735234270,5sleep01735839-21irqrtprio09:45:170
1726236271,3sleep1222-21plymouthd09:39:141
1726236271,3sleep1222-21plymouthd09:39:131
1726216270,1sleep21726222-21ssh09:39:102
1726216270,1sleep21726222-21ssh09:39:092
1720252271,3sleep00-21swapper/009:35:200
1720252271,3sleep00-21swapper/009:35:190
1718237270,4sleep21718243-21ssh09:33:402
1708568271,3sleep01708611-21ntpq09:25:240
1701606271,3sleep11701610-21ssh09:21:041
1690275271,4sleep21691732-21ssh09:15:202
1687559270,1sleep00-21swapper/009:15:020
1686724270,1sleep00-21swapper/009:13:220
1685441270,4sleep11685630-21users09:10:301
1678615271,3sleep21678656-21ntpq09:05:262
1672737271,3sleep0222-21plymouthd09:00:350
1672377270,4sleep20-21swapper/209:00:292
1666382270,4sleep2222-21plymouthd08:56:252
1653868270,5sleep0222-21plymouthd08:50:000
1653743271,3sleep1222-21plymouthd08:48:261
1640871270,1sleep00-21swapper/008:39:060
1637623273,2sleep21639456-21kthreadcore08:35:202
1632767271,3sleep11633488-21ls08:30:211
1609476271,3sleep01609639-21/usr/sbin/munin08:15:170
1609205270,4sleep21609169-21/usr/sbin/munin08:15:142
1602214271,2sleep1222-21plymouthd08:06:351
1598283270,4sleep01600044-21cut08:05:190
1596039270,3sleep2222-21plymouthd08:04:362
1583513271,2sleep20-21swapper/207:55:142
1583477271,3sleep11583510-21apt-get07:55:131
1570710270,3sleep1222-21plymouthd07:45:151
1570674271,3sleep01570707-21apt-get07:45:140
1570121270,1sleep10-21swapper/107:41:271
1564682271,3sleep21565435-21irqrtprio07:40:192
1563733271,3sleep0222-21plymouthd07:37:280
1557242271,3sleep0222-21plymouthd07:31:180
1550045271,3sleep11550185-21ntpq07:25:221
1545030271,2sleep00-21swapper/007:25:130
2003329261,2sleep20-21swapper/212:35:192
2000754260,2sleep0222-21plymouthd12:32:200
1954576260,4sleep00-21swapper/012:04:290
1915603260,3sleep01915764-21diskstats11:40:160
1912970260,3sleep21913016-21ntpq11:35:252
1908683260,2sleep0222-21plymouthd11:35:190
1892139261,2sleep10-21swapper/111:25:141
1892139261,2sleep10-21swapper/111:25:131
1882605260,4sleep2222-21plymouthd11:16:362
1882605260,4sleep2222-21plymouthd11:16:362
1881620260,3sleep11881665-21ntpq11:15:241
1881620260,3sleep11881665-21ntpq11:15:231
1860614260,2sleep11860647-21apt-get11:05:131
1842968260,1sleep10-21swapper/110:51:051
1835485261,2sleep0222-21plymouthd10:47:030
1818363260,1sleep20-21swapper/210:35:232
1812293260,1sleep00-21swapper/010:33:080
1806509261,2sleep10-21swapper/110:30:161
1794577260,3sleep01795070-21/usr/sbin/munin10:20:210
1774369260,3sleep11774572-21smartctl10:10:161
1766482260,3sleep01766685-21hddtemp_smartct10:05:140
1759799260,3sleep11760502-21kthreadcore10:00:211
1739980260,3sleep11740020-21ssh09:45:231
1739980260,3sleep11740020-21ssh09:45:221
1700850261,3sleep21700881-21ntpq09:20:252
1675337261,2sleep10-21swapper/109:05:211
1674401261,2sleep00-21swapper/009:05:200
1650503260,3sleep2222-21plymouthd08:45:182
1640887260,3sleep1222-21plymouthd08:39:201
1628661260,4sleep00-21swapper/008:30:160
1627850260,3sleep2222-21plymouthd08:25:412
1622111261,2sleep00-21swapper/008:25:160
1605828260,3sleep1222-21plymouthd08:10:201
1596053260,2sleep1222-21plymouthd08:04:471
1588688260,3sleep01588721-21ntpq07:55:240
1582321260,3sleep01582360-21ntp_states07:50:230
1576719260,3sleep2222-21plymouthd07:49:002
1563771260,3sleep2222-21plymouthd07:37:582
1551414260,2sleep2222-21plymouthd07:30:132
1544404260,3sleep086188-21systemd-journal07:20:370
1537921260,2sleep0222-21plymouthd07:15:430
1532425260,1sleep20-21swapper/207:15:172
1523246260,2sleep01523294-21appstreamcli07:10:030
1932734250,3sleep01933021-21grep11:50:180
1818612251,2sleep10-21swapper/110:35:271
1596338250,3sleep20-21swapper/208:05:082
1578050250,3sleep2222-21plymouthd07:50:182
1570078250,2sleep0222-21plymouthd07:40:530
1545022250,2sleep2222-21plymouthd07:25:072
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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