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2026-05-05 - 09:49
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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 100 highest latencies:
System rackeslot8.osadl.org (updated Tue May 05, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1833411992926,1cyclictest0-21swapper/320:20:013
1833411992725,1cyclictest0-21swapper/322:45:003
1833411992724,1cyclictest0-21swapper/321:30:153
1833411992421,1cyclictest0-21swapper/323:20:013
1833411992320,1cyclictest0-21swapper/300:35:003
183341199221,14cyclictest2281849-21sleep00:19:563
1833411992118,1cyclictest0-21swapper/323:40:013
1833411992118,1cyclictest0-21swapper/321:15:003
1833411992118,1cyclictest0-21swapper/320:50:183
183341199211,15cyclictest1893481-21taskset19:54:543
183341199208,8cyclictest20442782sleep321:42:563
183341199202,14cyclictest2146887-21taskset22:48:103
1833411992017,1cyclictest0-21swapper/323:00:253
1833411992017,1cyclictest0-21swapper/322:35:003
1833411992017,1cyclictest0-21swapper/320:40:013
1833411992017,1cyclictest0-21swapper/300:10:013
183341199201,15cyclictest2249823-21chrt23:53:573
183341199201,14cyclictest2178464-21taskset23:08:113
183341199201,13cyclictest2297652-21taskset00:24:553
183341199197,8cyclictest23138172sleep300:35:113
1833411991916,1cyclictest0-21swapper/323:20:033
1833411991916,1cyclictest0-21swapper/321:20:113
1833411991916,1cyclictest0-21swapper/300:00:003
183341199191,14cyclictest2225325-21taskset23:36:363
183341199191,13cyclictest2266037-21taskset00:04:563
183341199191,13cyclictest2266037-21taskset00:04:553
183341199191,13cyclictest1977168-21chrt21:00:123
1833411991816,1cyclictest0-21swapper/323:10:103
1833411991815,1cyclictest0-21swapper/322:10:203
1833411991815,1cyclictest0-21swapper/322:10:003
1833411991815,1cyclictest0-21swapper/322:00:183
1833411991815,1cyclictest0-21swapper/319:20:153
183341199181,13cyclictest2242090-21taskset23:49:233
183341199181,13cyclictest2215583-21taskset23:30:193
183341199181,13cyclictest2210729-21turbostat23:29:593
183341199181,13cyclictest2161064-21chrt22:55:243
183341199181,13cyclictest2147866-21taskset22:50:103
183341199181,13cyclictest2124887-21taskset22:35:143
183341199181,13cyclictest2098055-21taskset22:15:223
183341199181,13cyclictest2050535-21taskset21:45:193
183341199181,13cyclictest2030939-21taskset21:35:163
183341199181,13cyclictest1906600-21chrt20:05:133
183341199180,9cyclictest19897311sleep21:10:013
21397412176,8sleep22139984-21sed22:45:002
183341199178,6cyclictest20611132sleep321:55:063
183341199172,12cyclictest2280619-21taskset00:11:443
1833411991714,1cyclictest0-21swapper/319:15:023
183341199171,13cyclictest2059376-21taskset21:51:013
183341199171,13cyclictest2019884-21taskset21:25:583
183341199171,13cyclictest1951492-21taskset20:40:043
183341199171,13cyclictest1944761-21taskset20:34:153
183341199171,13cyclictest1886893-21taskset19:47:373
183341199171,13cyclictest1867630-21taskset19:34:013
183341199171,12cyclictest2106577-21taskset22:20:363
183341199171,12cyclictest1874898-21taskset19:40:153
183341199171,12cyclictest1860911-21taskset19:25:273
22897372166,7sleep02289755-21latency_hist00:20:000
1833411991613,1cyclictest0-21swapper/320:10:163
183341199161,12cyclictest2297957-21taskset00:25:033
183341199161,12cyclictest2108497-21taskset22:25:083
183341199161,12cyclictest1938086-21taskset20:25:573
183341199161,12cyclictest1938086-21taskset20:25:573
183341199161,12cyclictest1930901-21taskset20:20:193
183341199161,12cyclictest1899706-21taskset19:57:433
183341199161,11cyclictest2005797-21chrt21:20:023
183341199161,11cyclictest1976495-21chrt20:55:323
183341199161,11cyclictest1906002-21taskset20:01:153
183341199161,11cyclictest1873829-21taskset19:35:593
183341199160,12cyclictest1957885-21taskset20:45:063
183341199151,11cyclictest1842284-21chrt19:15:133
18330122150,2sleep30-21swapper/319:06:523
23069052140,7sleep22307839-21cut00:30:182
22269482141,10sleep12227063-21grep23:40:131
22195572141,10sleep22220410-21ssh23:35:162
21320972141,9sleep02132138-21ssh22:40:090
22669922130,10sleep02267864-21cut00:05:210
20694682130,10sleep12069605-21cut22:00:171
20519892130,2sleep00-21swapper/021:47:250
20042792131,9sleep02004284-21sh21:16:340
18571052133,8sleep11858891-21kthreadcore19:25:191
22482082120,5sleep02248434-21unixbench_multi23:50:250
21543792121,3sleep1222-21plymouthd22:52:211
20428342121,4sleep02042870-21ntpq21:40:240
19900522121,8sleep21990069-21ssh21:10:112
19771312121,3sleep11977164-21apt-get21:00:111
19332602120,9sleep21934311-21cut20:25:182
19332602120,9sleep21934311-21cut20:25:172
19179572121,8sleep01918111-21needreboot20:10:200
19066022120,8sleep01906759-21diskstats20:05:140
18638122121,9sleep01865604-21kthreadcore19:30:180
129998120,8rtkit-daemon2231297-21grep23:40:190
129998120,4rtkit-daemon876-21gmain00:30:370
129998120,3rtkit-daemon1000-21snmpd23:29:342
23034112110,8sleep02303540-21python300:25:260
21812212111,7sleep12182956-21kthreadcore23:10:171
19767892110,3sleep21976790-21sshd-session20:59:212
19061942110,2sleep1222-21plymouthd20:03:431
129998110,7rtkit-daemon2240867-21ssh23:46:020
129998110,6rtkit-daemon1853889-21ntpq19:20:212
129998110,4rtkit-daemon876-21gmain00:36:560
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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