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2026-06-12 - 10:22
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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 12, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
16265762270,2sleep2222-21plymouthd20:10:192
1542081992522,1cyclictest0-21swapper/321:59:593
1542081992421,1cyclictest0-21swapper/300:30:013
1542081992320,1cyclictest0-21swapper/323:00:173
154208199230,9cyclictest1862129-21sleep22:55:003
1542081992219,1cyclictest0-21swapper/322:10:003
154208199221,14cyclictest1634386-21sleep20:24:563
154208199221,14cyclictest1634386-21sleep20:24:563
154208199212,14cyclictest2025237-21taskset00:39:423
1542081992118,1cyclictest0-21swapper/322:42:353
1542081992118,1cyclictest0-21swapper/319:35:153
154208199211,15cyclictest1768779-21turbostat21:55:003
154208199202,14cyclictest1548173-21taskset19:11:263
1542081992017,1cyclictest0-21swapper/323:39:593
1542081992017,1cyclictest0-21swapper/322:05:013
154208199201,15cyclictest1575984-21taskset19:30:263
154208199201,13cyclictest1908764-21taskset23:25:003
154208199201,13cyclictest1673070-21turbostat20:50:013
154208199201,13cyclictest1602438-21chrt19:55:123
154208199200,18cyclictest1608592-21turbostat20:04:543
154208199200,17cyclictest1807765-21turbostat22:24:563
154208199197,8cyclictest17224532sleep321:25:133
154208199192,13cyclictest1715128-21taskset21:20:153
1542081991916,1cyclictest0-21swapper/323:15:173
1542081991915,1cyclictest0-21swapper/300:20:123
154208199191,14cyclictest1923894-21taskset23:34:023
154208199191,14cyclictest1822784-21taskset22:28:393
154208199191,14cyclictest1805086-21taskset22:15:203
154208199191,14cyclictest1699138-21chrt21:10:133
154208199191,13cyclictest1862438-21chrt22:55:133
154208199189,6cyclictest17526602sleep321:43:263
154208199188,7cyclictest19553072sleep323:55:003
1542081991816,0cyclictest0-21swapper/320:15:273
1542081991815,1cyclictest0-21swapper/300:10:233
154208199181,14cyclictest1971304-21taskset00:05:133
154208199181,14cyclictest0-21swapper/321:39:543
154208199181,13cyclictest1935481-21taskset23:40:203
154208199181,13cyclictest1915868-21taskset23:28:123
154208199181,13cyclictest1884090-21taskset23:06:123
154208199181,13cyclictest1836766-21taskset22:35:253
154208199181,13cyclictest1826447-21taskset22:30:193
154208199181,13cyclictest1713051-21taskset21:16:103
154208199181,13cyclictest1698798-21turbostat21:10:013
154208199181,13cyclictest1621478-21taskset20:09:563
154208199181,13cyclictest1569640-21taskset19:26:063
154208199180,14cyclictest1666212-21taskset20:40:253
154208199177,7cyclictest16471362sleep320:28:493
1542081991714,1cyclictest0-21swapper/323:45:203
1542081991714,1cyclictest0-21swapper/323:10:133
1542081991714,1cyclictest0-21swapper/322:45:203
1542081991714,1cyclictest0-21swapper/321:00:083
1542081991714,1cyclictest0-21swapper/320:30:223
154208199171,13cyclictest1759733-21taskset21:46:243
154208199171,13cyclictest1737546-21taskset21:34:473
154208199171,13cyclictest1595949-21taskset19:50:023
154208199171,13cyclictest1550568-21taskset19:15:023
154208199171,12cyclictest1955638-21taskset23:55:103
154208199171,12cyclictest1685570-21taskset20:56:143
154208199171,12cyclictest1674718-21taskset20:50:163
18133202161,11sleep01813361-21ntpq22:20:220
15754212161,8sleep11570213-21/usr/sbin/munin19:30:211
1542081991613,1cyclictest0-21swapper/322:10:183
1542081991613,1cyclictest0-21swapper/300:00:163
154208199161,12cyclictest1986723-21taskset00:15:033
154208199161,12cyclictest1659808-21taskset20:35:373
154208199161,12cyclictest1595390-21taskset19:46:063
154208199161,12cyclictest1589015-21taskset19:41:483
154208199161,12cyclictest1563221-21taskset19:21:173
154208199160,13cyclictest2010607-21taskset00:30:153
154208199160,13cyclictest1627914-21taskset20:14:443
19259542155,7sleep11926987-21cut23:35:171
18388642140,11sleep21839082-21ssh22:40:012
16360402140,11sleep21637629-21cut20:20:182
16360402140,11sleep21637629-21cut20:20:172
20080182134,2sleep2171rcu_preempt00:25:262
19226972130,9sleep11922701-21ssh23:30:331
18925752138,3sleep2431ktimers/223:13:142
18067082131,3sleep20-21swapper/222:17:052
17932462131,9sleep01794038-21cut22:10:160
16929582130,9sleep01693113-21cut21:05:130
16476882130,9sleep11647501-21/usr/sbin/munin20:30:141
15561762130,5sleep21556223-21ntp_states19:15:232
15419212130,2sleep30-21swapper/319:09:383
19928212121,8sleep01992825-21ssh00:15:540
19240672120,9sleep01924073-21ssh23:34:330
18747382120,4sleep01875266-21memory23:00:210
18317832120,3sleep2222-21plymouthd22:35:172
18310442121,8sleep21831082-21idleruntime-cro22:35:002
17716812121,8sleep11773365-21cut21:55:191
16604332125,5sleep21660209-21sendmail-msp20:40:092
16601482121,3sleep1222-21plymouthd20:40:011
15766862121,8sleep01576771-21cpuspeed_turbos19:35:140
20179192110,4sleep22017926-21ssh00:35:132
19687882111,3sleep11968837-21ssh00:00:241
19392512111,7sleep01939257-21ssh23:43:310
18080802111,6sleep1222-21plymouthd22:20:111
18077242110,3sleep0222-21plymouthd22:19:590
17589022110,3sleep0222-21plymouthd21:45:230
17375152110,8sleep11737521-21ssh21:34:421
16914172111,3sleep21691459-21ntpq21:00:232
19547762100,7sleep01954778-21ssh23:53:240
19383212100,7sleep11938326-21sh23:40:431
19149342100,3sleep21914940-21ssh23:25:322
19016702100,7sleep01901909-21cut23:20:170
18857162101,4sleep11885718-21apt-get23:10:121
18767612100,7sleep21876767-21ssh23:02:352
18624032102,4sleep21862435-21apt-get22:55:132
18473822100,7sleep11847878-21sed22:45:181
18469132100,3sleep0222-21plymouthd22:45:120
17856312100,7sleep21786074-21cut22:05:182
17745182101,2sleep0222-21plymouthd21:55:260
17682102101,6sleep21768216-21ssh21:53:312
17616492101,7sleep01762206-21irqrtprio21:50:150
17336862100,1sleep00-21swapper/021:30:190
17177552100,3sleep21719512-21kthreadcore21:20:192
17143762101,5sleep01714451-21munin-run21:20:000
16793062100,3sleep2222-21plymouthd20:53:042
16533982100,3sleep2222-21plymouthd20:31:192
16282362102,4sleep21628238-21apt-get20:15:122
16149462100,1sleep20-21swapper/220:03:582
16082142100,3sleep2222-21plymouthd19:55:362
15835882100,7sleep21584522-21irqstats19:40:162
15653842101,6sleep21567027-21kthreadcore19:25:172
15638192100,7sleep11563939-21cpuspeed_turbos19:25:121
2015362291,5sleep02015412-21ntpq00:30:200
1986750291,4sleep21986783-21apt-get00:15:122
1963532291,4sleep2222-21plymouthd00:00:132
1953148291,5sleep21953191-21ntpq23:50:222
1900821290,2sleep10-21swapper/123:19:371
1893430290,1sleep00-21swapper/023:15:030
1884203290,6sleep11884209-21ssh23:06:301
1876951290,2sleep1222-21plymouthd23:03:061
1861010290,7sleep21861015-21sh22:51:522
1820973292,3sleep21821064-21ntpq22:25:272
1798614290,3sleep21798620-21ssh22:11:182
1766445292,4sleep11766540-21ntpq21:50:211
1756928290,6sleep21758561-21latency21:45:162
1745078290,2sleep0222-21plymouthd21:39:100
1736269290,2sleep2222-21plymouthd21:31:022
1728328290,6sleep21728347-21ssh21:25:282
1691323291,4sleep01691371-21ntpq21:00:210
1685748290,2sleep2222-21plymouthd20:58:302
1673511291,5sleep01673697-21expr20:50:150
1668291290,6sleep01669319-21cat20:45:160
1646910290,2sleep1222-21plymouthd20:25:541
1621408290,2sleep2222-21plymouthd20:09:032
1615756291,5sleep11616638-21irqrtprio20:05:161
1611944291,6sleep01613832-21kthreadcore20:00:190
1595379290,2sleep2222-21plymouthd19:45:582
1557770290,6sleep21558048-21irqcore19:20:152
1557569291,5sleep11557769-21hddtemp_smartct19:20:141
1547514296,1sleep10-21swapper/119:10:201
1541633290,1sleep00-21swapper/019:06:030
1535863291,3sleep11535896-21apt-get19:05:121
2023310281,4sleep02023435-21/usr/sbin/munin00:35:270
1997546281,4sleep01999266-21kthreadcore00:20:180
1994613282,3sleep11994615-21apt-get00:20:111
1979162280,5sleep21979327-21gltestperf00:10:152
1971226281,3sleep11971259-21apt-get00:05:131
1947329281,4sleep21916716-21kworker/u16:0+xprtiod23:49:252
1926988280,6sleep21928689-21kthreadcore23:35:182
1901911280,5sleep11902727-21kthreadcore23:20:181
1877902281,3sleep21877935-21apt-get23:05:112
1862598281,4sleep11862782-21head22:55:151
1838796281,4sleep11838829-21munin-run22:40:011
1801684281,4sleep11803242-21cut22:15:191
1774400281,3sleep21774430-21ntpq21:55:242
1721047280,3sleep172-21kcompactd021:21:551
1694026280,6sleep21695728-21cut21:05:162
1691378281,4sleep11691415-21ntpq21:00:221
1679147281,5sleep11000-21snmpd20:51:041
1659972280,1sleep00-21swapper/020:37:440
1634645280,5sleep00-21swapper/020:20:120
1634645280,5sleep00-21swapper/020:20:110
1633662280,5sleep01633837-21timerwakeupswit20:15:260
1627595281,4sleep11000-21snmpd20:10:391
1588356281,4sleep01588403-21ntp_states19:40:230
1556994280,5sleep0222-21plymouthd19:18:500
1547462281,4sleep01547512-21ntpq19:10:190
1542452281,4sleep21542652-21hddtemp_smartct19:10:142
2024482270,4sleep1222-21plymouthd00:37:321
2015464270,4sleep22015512-21ntpq00:30:222
2015416271,3sleep12015462-21ntpq00:30:211
1979466271,3sleep01980394-21kernelversion00:10:160
1979001271,3sleep11979161-21diskstats00:10:131
1977997270,2sleep0222-21plymouthd00:08:040
1963000270,4sleep21963006-21ssh23:59:472
1946062270,1sleep10-21swapper/123:45:391
1915292270,4sleep1222-21plymouthd23:26:311
1900780270,1sleep20-21swapper/223:19:302
1860562271,3sleep01860568-21ssh22:50:380
1860052270,3sleep11860177-21python322:50:271
1853652271,3sleep21853658-21ssh22:48:042
1846368270,5sleep01846374-21ssh22:44:250
1837883270,4sleep01837889-21ssh22:37:230
1830663271,4sleep01000-21snmpd22:33:590
1829873270,1sleep10-21swapper/122:31:341
1815849271,3sleep11815882-21apt-get22:25:181
1792339270,4sleep1222-21plymouthd22:10:051
1787706270,5sleep01789450-21kthreadcore22:05:200
1785022271,3sleep11785630-21irqrtprio22:05:171
1784243270,4sleep11784315-21munin-run22:05:001
1784128270,2sleep21784134-21ssh22:04:422
1782038270,4sleep01782081-21ntpq22:00:220
1759902270,4sleep10-21swapper/121:47:011
1745212270,4sleep21721430-21kworker/u16:0+rpciod21:39:312
1738001270,4sleep11738027-21grep21:35:131
1727763271,3sleep11727811-21ntpq21:25:231
1723843270,4sleep01723875-21kthreadcore21:25:180
1705591270,1sleep21705597-21ssh21:12:062
1697957270,3sleep1222-21plymouthd21:05:221
1669322270,4sleep10-21swapper/120:45:181
1666455270,4sleep0222-21plymouthd20:42:530
1641067271,3sleep21641100-21apt-get20:25:112
1623153271,3sleep00-21swapper/020:10:180
1621308270,1sleep00-21swapper/020:07:440
1601935270,1sleep00-21swapper/019:52:540
1598997271,4sleep11600881-21tr19:50:181
1594814271,4sleep01594853-21ntp_states19:45:230
1583123271,2sleep11583156-21apt-get19:40:111
1582661270,4sleep1222-21plymouthd19:37:471
1570249270,3sleep0222-21plymouthd19:30:120
1569826271,3sleep0222-21plymouthd19:28:280
1541640270,3sleep2222-21plymouthd19:06:092
2002554260,3sleep12002576-21entropy00:25:131
1994547261,2sleep2222-21plymouthd00:20:052
1977341260,4sleep21977347-21ssh00:06:092
1970595260,1sleep00-21swapper/000:04:020
1960803261,2sleep0222-21plymouthd23:55:210
1957216260,4sleep11958917-21tr23:55:181
1948811260,3sleep1222-21plymouthd23:50:171
1938839262,2sleep2222-21plymouthd23:42:162
1931237260,4sleep01830810-21kworker/0:2+kacpid23:37:490
1916730261,3sleep2222-21plymouthd23:30:102
1915168260,4sleep00-21swapper/023:26:100
1901210261,3sleep21900992-21sendmail-msp23:20:032
1892253260,3sleep0222-21plymouthd23:12:190
1879328260,3sleep01880649-21kthreadcore23:05:170
1842276260,3sleep11844099-21kthreadcore22:40:211
1818709260,4sleep01820442-21ssh22:25:250
1814806260,3sleep2222-21plymouthd22:22:572
1752096260,1sleep20-21swapper/221:41:442
1751048261,2sleep10-21swapper/121:40:231
1714754260,3sleep01714801-21cpu21:20:130
1713610260,1sleep21713616-21ssh21:17:502
1712520260,3sleep11712632-21ssh21:15:281
1705181260,1sleep11705187-21ssh21:10:521
1685599260,1sleep00-21swapper/020:56:350
1672717260,1sleep20-21swapper/220:45:442
1666275261,2sleep10-21swapper/120:41:091
1654000260,3sleep21654144-21df20:35:132
1653483260,1sleep00-21swapper/020:32:230
1646944260,1sleep00-21swapper/020:26:210
1634672260,4sleep11634739-21wc20:20:131
1634672260,4sleep11634739-21wc20:20:121
1633467261,2sleep10-21swapper/120:15:231
1614725260,1sleep10-21swapper/120:01:091
1608325260,2sleep1222-21plymouthd19:57:031
1608257260,1sleep00-21swapper/019:56:090
1595958260,3sleep21595991-21apt-get19:50:102
1595403260,3sleep1222-21plymouthd19:46:171
1582562260,2sleep2222-21plymouthd19:36:322
1563380260,2sleep0222-21plymouthd19:23:180
1550934260,3sleep11551090-21diskstats19:15:141
1989374250,2sleep11991113-21kthreadcore00:15:191
1941996251,2sleep01943544-21kthreadcore23:45:190
1868416250,2sleep0222-21plymouthd22:55:550
1746768251,2sleep00-21swapper/021:40:170
1705324250,2sleep0222-21plymouthd21:11:190
1685065250,2sleep1222-21plymouthd20:55:251
1572991251,2sleep20-21swapper/219:30:182
2008828240,2sleep0222-21plymouthd00:27:050
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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