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2026-04-18 - 21:10
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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 Sat Apr 18, 2026 12:43:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1682502993229,1cyclictest0-21swapper/312:20:003
1682502993229,1cyclictest0-21swapper/312:20:003
1682502993128,1cyclictest0-21swapper/310:45:003
1682502993026,1cyclictest0-21swapper/310:20:003
1682502992825,1cyclictest0-21swapper/310:40:003
1682502992623,1cyclictest0-21swapper/309:30:003
129998250,2rtkit-daemon222-21plymouthd09:07:422
1682502992421,1cyclictest0-21swapper/310:08:513
168250299232,16cyclictest1780991-21taskset08:24:323
1682502992320,1cyclictest0-21swapper/311:15:143
16882792220,1sleep2421rcuc/207:10:262
1682502992118,1cyclictest0-21swapper/310:05:013
1682502992118,1cyclictest0-21swapper/309:20:183
168250299202,14cyclictest2147374-21taskset12:25:233
168250299202,14cyclictest2062653-21taskset11:31:143
168250299202,13cyclictest1813500-21taskset08:50:023
168250299201,14cyclictest2025080-21taskset11:09:413
168250299201,14cyclictest2009682-21taskset10:59:563
168250299192,13cyclictest1915358-21taskset09:56:163
1682502991917,1cyclictest0-21swapper/310:25:133
1682502991917,1cyclictest0-21swapper/309:40:003
1682502991916,1cyclictest0-21swapper/310:30:163
1682502991916,1cyclictest0-21swapper/310:20:263
1682502991916,1cyclictest0-21swapper/310:15:003
1682502991916,1cyclictest0-21swapper/308:25:213
1682502991915,1cyclictest0-21swapper/311:40:023
168250299191,14cyclictest2117003-21taskset12:06:193
168250299191,14cyclictest1986759-21taskset10:45:133
168250299182,12cyclictest1697131-21taskset07:16:333
1682502991816,0cyclictest0-21swapper/308:15:003
1682502991815,1cyclictest0-21swapper/312:20:193
1682502991815,1cyclictest0-21swapper/311:10:183
1682502991815,1cyclictest0-21swapper/307:20:273
168250299181,14cyclictest2087192-21sleep11:54:553
168250299181,14cyclictest1907380-21taskset09:50:323
168250299181,14cyclictest1749129-21taskset08:00:063
168250299181,14cyclictest1729417-21taskset07:43:193
168250299181,13cyclictest2155700-21taskset12:30:403
168250299181,13cyclictest2125416-21taskset12:13:243
168250299181,13cyclictest2108361-21taskset12:00:213
168250299181,13cyclictest2050833-21taskset11:25:173
168250299181,13cyclictest2047802-21taskset11:23:123
168250299181,13cyclictest1899852-21taskset09:46:143
168250299181,13cyclictest1839350-21chrt09:10:153
168250299181,13cyclictest1826049-21taskset08:59:593
168250299181,13cyclictest1806710-21taskset08:43:283
168250299181,13cyclictest1800234-21taskset08:37:553
168250299181,13cyclictest1768506-21chrt08:15:153
168250299181,13cyclictest1761563-21taskset08:08:093
20644222170,8sleep12064602-21tail11:35:151
168250299178,6cyclictest20005422sleep310:50:543
168250299178,6cyclictest17488212sleep307:59:443
168250299172,12cyclictest2158909-21chrt12:35:183
168250299172,12cyclictest1832361-21taskset09:02:413
168250299172,11cyclictest2079714-21taskset11:45:063
1682502991714,1cyclictest0-21swapper/308:45:153
168250299171,13cyclictest1854039-21taskset09:18:283
168250299171,13cyclictest1854039-21taskset09:18:283
168250299171,13cyclictest1838624-21taskset09:05:413
168250299171,12cyclictest2070360-21taskset11:36:073
168250299171,12cyclictest2015911-21taskset11:00:283
168250299171,12cyclictest2015911-21taskset11:00:273
168250299171,12cyclictest1887841-21taskset09:40:183
168250299171,12cyclictest1870344-21taskset09:30:063
168250299171,12cyclictest1730047-21taskset07:45:163
168250299171,12cyclictest1730047-21taskset07:45:153
168250299171,12cyclictest1704054-21taskset07:25:063
19265782161,8sleep014-21ksoftirqd/010:05:170
1682502991613,1cyclictest0-21swapper/307:50:233
168250299161,12cyclictest2101211-21taskset11:55:333
168250299161,12cyclictest1793576-21taskset08:30:413
168250299161,12cyclictest1716929-21chrt07:35:133
168250299161,12cyclictest1716396-21taskset07:32:043
168250299161,12cyclictest1688640-21taskset07:12:323
17624512151,11sleep21763241-21cut08:10:162
21329672141,2sleep20-21swapper/212:17:452
21329672141,2sleep20-21swapper/212:17:452
20868552142,5sleep2222-21plymouthd11:49:112
20773472141,9sleep02077395-21ntpq11:40:220
20022592141,10sleep10-21swapper/110:55:131
18260332141,5sleep21826045-21unix_chkpwd08:59:592
21340812131,3sleep02134114-21apt-get12:20:110
129998130,9rtkit-daemon2055334-21ssh11:27:292
20463762120,9sleep12046407-21ntpq11:20:231
19377852120,4sleep11937833-21ssh10:10:231
17620082121,8sleep11762009-21/usr/sbin/munin08:10:111
129998120,3rtkit-daemon1876448-21ssh09:30:582
129998120,2rtkit-daemon222-21plymouthd08:16:052
21347072110,8sleep12134082-21/usr/sbin/munin12:20:161
21247642117,2sleep00-21swapper/012:11:260
21181412110,2sleep0222-21plymouthd12:09:450
19165882110,8sleep11-21systemd10:00:001
18534312112,5sleep2222-21plymouthd09:16:432
18534312112,5sleep2222-21plymouthd09:16:432
18463332110,8sleep20-21swapper/209:13:432
18092792110,4sleep11811074-21grep08:45:191
129998110,7rtkit-daemon364-21systemd-udevd10:10:330
129998110,7rtkit-daemon2195379-21ntpd11:31:002
129998110,7rtkit-daemon1906820-21ntpq09:50:262
129998110,6rtkit-daemon1900937-21ssh09:49:302
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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