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2026-04-02 - 10:09
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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 Thu Apr 02, 2026 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
198278521350,1sleep00-21swapper/023:40:170
1589393992724,1cyclictest0-21swapper/320:40:003
20587152240,2sleep2421rcuc/200:30:182
1589393992421,1cyclictest0-21swapper/319:40:013
1589393992219,1cyclictest0-21swapper/323:15:003
1589393992219,1cyclictest0-21swapper/320:45:173
1589393992118,1cyclictest0-21swapper/322:10:273
158939399211,15cyclictest1856298-21taskset22:20:183
16549912201,10sleep21655072-21awk19:55:252
1589393992018,1cyclictest0-21swapper/319:40:173
1589393992017,1cyclictest0-21swapper/320:55:003
1589393992017,1cyclictest0-21swapper/320:30:163
158939399201,15cyclictest1838040-21taskset22:07:113
158939399201,14cyclictest1822743-21taskset21:58:013
158939399201,14cyclictest1799588-21taskset21:43:093
158939399198,7cyclictest18839472sleep322:35:303
1589393991916,1cyclictest0-21swapper/322:30:173
1589393991916,1cyclictest0-21swapper/321:25:193
1589393991916,1cyclictest0-21swapper/300:10:113
158939399191,14cyclictest2071551-21taskset00:39:333
158939399191,14cyclictest1931767-21taskset23:09:223
158939399191,14cyclictest1688289-21chrt20:25:123
158939399191,14cyclictest1603390-21taskset19:15:213
158939399188,7cyclictest17525542sleep321:11:393
158939399187,7cyclictest16877622sleep320:22:123
1589393991816,1cyclictest0-21swapper/323:20:013
1589393991816,1cyclictest0-21swapper/323:15:173
1589393991815,1cyclictest0-21swapper/322:15:273
1589393991815,1cyclictest0-21swapper/322:00:153
158939399181,14cyclictest1915681-21taskset22:57:473
158939399181,13cyclictest2062869-21taskset00:31:523
158939399181,13cyclictest2048756-21chrt00:25:103
158939399181,13cyclictest2023155-21taskset00:05:223
158939399181,13cyclictest2010053-21taskset00:00:093
158939399181,13cyclictest2009135-21taskset23:58:243
158939399181,13cyclictest1984970-21taskset23:41:043
158939399181,13cyclictest1963579-21taskset23:30:143
158939399181,13cyclictest1800746-21taskset21:45:143
158939399181,13cyclictest1761882-21chrt21:20:123
158939399181,13cyclictest1661998-21taskset20:01:473
158939399181,13cyclictest1623542-21taskset19:33:203
158939399172,12cyclictest1616136-21taskset19:25:183
1589393991714,1cyclictest0-21swapper/323:00:193
1589393991714,1cyclictest0-21swapper/321:15:193
1589393991714,1cyclictest0-21swapper/321:00:253
1589393991714,1cyclictest0-21swapper/320:05:203
1589393991714,1cyclictest0-21swapper/319:10:193
158939399171,13cyclictest1992850-21taskset23:46:173
158939399171,13cyclictest1971450-21taskset23:35:153
158939399171,13cyclictest1906767-21taskset22:50:243
158939399171,13cyclictest1891198-21taskset22:40:223
158939399171,13cyclictest1814288-21taskset21:50:443
158939399171,13cyclictest1790291-21taskset21:35:193
158939399171,13cyclictest1681274-21taskset20:16:503
158939399171,13cyclictest1604625-21taskset19:20:093
158939399171,12cyclictest2033227-21taskset00:15:043
158939399171,12cyclictest1999795-21taskset23:50:233
158939399171,12cyclictest1955590-21taskset23:25:043
158939399171,12cyclictest1893555-21taskset22:45:073
158939399171,12cyclictest1783288-21taskset21:30:383
158939399171,12cyclictest1732684-21taskset20:55:593
158939399171,12cyclictest1655481-21taskset19:55:413
158939399171,12cyclictest1647342-21taskset19:50:213
19762882161,11sleep0222-21plymouthd23:35:210
1589393991613,1cyclictest0-21swapper/322:25:123
158939399161,12cyclictest2047063-21taskset00:20:493
158939399161,12cyclictest1745704-21taskset21:07:303
158939399161,12cyclictest1713759-21turbostat20:45:003
158939399161,12cyclictest1642700-21taskset19:46:193
158939399161,11cyclictest1668939-21taskset20:10:093
15889682161,2sleep30-21swapper/319:06:363
129998160,7rtkit-daemon1868466-21ssh22:25:282
20155052151,11sleep22015624-21python300:00:252
19221312151,9sleep21922174-21ntp_states23:00:232
18135992151,10sleep11813650-21ssh21:50:221
17815892141,9sleep01782433-21memory21:30:210
17137422141,4sleep2222-21plymouthd20:45:002
16110792141,10sleep01611229-21df_inode19:25:120
20650502130,10sleep22065834-21tr00:35:172
20230542131,9sleep12023099-21ntpq00:05:211
20012562131,9sleep12001258-21ssh23:53:151
19687362131,4sleep01968784-21ntpq23:30:250
17192262131,4sleep21719270-21ntpq20:45:212
16040912131,4sleep2222-21plymouthd19:17:002
129998130,5rtkit-daemon739-21wpa_supplicant19:55:280
19887742120,9sleep21990447-21cut23:45:172
19878082121,8sleep11988773-21cat23:45:161
19862922120,9sleep21986558-21sed23:45:022
19090572121,4sleep11909063-21ssh22:55:131
129998120,7rtkit-daemon726-21systemd-logind19:36:330
129998120,1rtkit-daemon0-21swapper/100:29:071
20248492110,8sleep02024855-21ssh00:08:570
19779092110,8sleep21977913-21ssh23:38:032
19544212110,4sleep21954427-21ssh23:22:242
19017552110,2sleep21902679-21irqrtprio22:50:162
18831472110,3sleep11878023-21/usr/sbin/munin22:35:211
18467712110,8sleep11846781-21cron22:14:591
18463502110,8sleep01846356-21ssh22:13:420
16420292110,8sleep11642074-21ld19:45:221
16236722110,4sleep21623798-21latency_hist19:35:002
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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