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2025-11-30 - 04:27
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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 Sun Nov 30, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188643021030,1sleep30-21swapper/321:35:233
20653332340,1sleep10-21swapper/123:28:061
1687539992724,1cyclictest0-21swapper/322:30:003
1687539992320,1cyclictest0-21swapper/323:50:003
1687539992320,1cyclictest0-21swapper/323:25:013
1687539992219,1cyclictest0-21swapper/320:40:193
168753999211,14cyclictest2131110-21taskset00:10:003
168753999211,14cyclictest2033913-21turbostat23:10:003
1687539992017,1cyclictest0-21swapper/321:10:163
1687539992017,1cyclictest0-21swapper/320:25:173
1687539992017,1cyclictest0-21swapper/300:10:143
1687539992017,1cyclictest0-21swapper/300:00:003
147598200,3rtkit-daemon1693936-21munin-node19:54:252
168753999192,7cyclictest2122760-21turbostat00:05:003
1687539991916,1cyclictest0-21swapper/322:54:593
1687539991916,1cyclictest0-21swapper/321:30:013
168753999191,14cyclictest2049981-21turbostat23:20:013
1687539991815,1cyclictest0-21swapper/300:18:373
168753999181,13cyclictest1929461-21taskset22:05:013
168753999181,13cyclictest1921599-21taskset22:00:153
168753999181,13cyclictest1852412-21taskset21:15:183
168753999181,12cyclictest2172079-21taskset00:35:013
168753999181,12cyclictest2155798-21taskset00:25:153
168753999181,12cyclictest1733549-21turbostat19:45:003
21232552170,9sleep22123259-21ssh00:05:032
21130842170,9sleep22113090-21ssh23:56:292
1687539991715,1cyclictest0-21swapper/322:45:153
1687539991714,1cyclictest0-21swapper/321:55:003
1687539991714,1cyclictest0-21swapper/319:30:203
1687539991714,1cyclictest0-21swapper/319:15:163
168753999171,13cyclictest1990820-21taskset22:40:183
168753999171,13cyclictest1905017-21turbostat21:50:003
168753999171,12cyclictest2098843-21chrt23:50:043
168753999171,12cyclictest1972216-21taskset22:30:173
168753999171,12cyclictest1939901-21taskset22:10:173
168753999171,12cyclictest1878953-21taskset21:31:103
168753999170,13cyclictest1766666-21chrt20:10:183
19269842161,2sleep10-21swapper/122:00:271
168753999161,12cyclictest2169356-21taskset00:30:243
168753999161,12cyclictest2153813-21chrt00:21:453
168753999161,12cyclictest2066426-21taskset23:30:093
168753999161,12cyclictest2061043-21taskset23:25:193
168753999161,12cyclictest2035699-21taskset23:10:173
168753999161,12cyclictest2024420-21chrt23:01:353
168753999161,12cyclictest1983660-21taskset22:35:383
168753999161,12cyclictest1983660-21taskset22:35:383
168753999161,12cyclictest1959594-21taskset22:20:563
168753999161,12cyclictest1951665-21taskset22:16:073
168753999161,12cyclictest1895021-21taskset21:41:003
168753999161,12cyclictest1863669-21taskset21:23:093
168753999161,12cyclictest1834191-21turbostat21:05:013
168753999161,12cyclictest1827904-21turbostat21:00:013
168753999161,12cyclictest1752289-21taskset19:55:373
168753999161,12cyclictest1727099-21taskset19:38:093
168753999161,12cyclictest1714044-21chrt19:25:223
168753999161,12cyclictest1707694-21taskset19:20:223
168753999161,11cyclictest2010072-21taskset22:55:143
168753999160,9cyclictest1921098-21taskset21:59:563
168753999160,13cyclictest1819102-21chrt20:50:193
19429112151,10sleep01943030-21/usr/sbin/munin22:10:240
16952232151,11sleep01695999-21python319:15:030
1687539991512,1cyclictest0-21swapper/323:35:183
1687539991512,1cyclictest0-21swapper/320:35:383
1687539991512,1cyclictest0-21swapper/319:45:153
168753999151,12cyclictest2089976-21chrt23:44:153
168753999151,12cyclictest1796384-21taskset20:33:443
168753999151,12cyclictest1783625-21chrt20:20:323
168753999151,11cyclictest1840385-21taskset21:09:293
168753999151,11cyclictest1815037-21chrt20:46:383
168753999151,11cyclictest1758637-21taskset20:01:463
168753999150,12cyclictest1759139-21chrt20:05:023
168753999150,12cyclictest1745765-21chrt19:51:003
1687539991411,1cyclictest0-21swapper/320:15:173
168753999140,11cyclictest1693161-21taskset19:10:243
19999262130,4sleep11999934-21ssh22:45:591
19751852131,5sleep01975356-21timerwakeupswit22:30:230
19551102130,10sleep11956622-21cut22:20:181
18796952130,2sleep00-21swapper/021:32:520
16870572131,8sleep21687058-21sshd19:05:262
147598130,6rtkit-daemon1540-21sendmail-mta22:06:041
20338902120,9sleep22033957-21sed23:10:012
16870952120,2sleep30-21swapper/319:05:563
147598120,8rtkit-daemon1726652-21cat19:35:252
147598120,4rtkit-daemon214-21plymouthd00:14:091
21224282110,3sleep02122435-21sh00:04:210
21058492110,8sleep02105857-21ssh23:53:180
20745282110,8sleep02074567-21apt-get23:35:110
19681112111,8sleep01968118-21sh22:27:020
18269782110,7sleep11827037-21ntp_states20:55:221
17984272111,7sleep11800425-21grep20:35:191
17526302110,3sleep11752695-21munin-run20:00:001
17154072110,7sleep11716062-21sed19:30:191
147598110,7rtkit-daemon2120262-21ntpq00:00:221
147598110,7rtkit-daemon1951635-21ssh22:16:022
147598110,7rtkit-daemon1540-21sendmail-mta21:46:241
147598110,6rtkit-daemon515-21gmain00:28:121
19774322100,7sleep11977675-21ssh22:35:011
19774322100,7sleep11977675-21ssh22:35:001
18162402100,2sleep10-21swapper/120:50:181
17024842101,5sleep11702517-21apt-get19:20:131
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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