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2026-06-14 - 11:00
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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 Jun 14, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2196799992926,1cyclictest0-21swapper/320:55:273
2196799992623,1cyclictest0-21swapper/300:40:013
2196799992623,1cyclictest0-21swapper/300:20:013
2196799992522,1cyclictest0-21swapper/322:30:013
219679999251,10cyclictest2275689-21sleep20:10:003
2196799992421,1cyclictest0-21swapper/321:48:313
2196799992421,1cyclictest0-21swapper/321:45:003
2196799992421,1cyclictest0-21swapper/320:00:273
23679822230,3sleep30-21swapper/321:20:013
2196799992320,1cyclictest0-21swapper/323:20:103
2196799992320,1cyclictest0-21swapper/322:50:013
2196799992320,1cyclictest0-21swapper/322:15:143
219679999222,15cyclictest2320435-21taskset20:44:213
2196799992219,1cyclictest0-21swapper/323:55:003
2196799992219,1cyclictest0-21swapper/323:30:213
2196799992219,1cyclictest0-21swapper/321:55:253
2196799992219,1cyclictest0-21swapper/321:25:193
2196799992118,1cyclictest0-21swapper/322:31:303
2196799992017,1cyclictest0-21swapper/321:35:253
219679999201,14cyclictest2262629-21taskset19:57:023
219679999201,13cyclictest2600045-21taskset23:49:553
219679999197,8cyclictest24379102sleep322:05:123
219679999192,13cyclictest2304270-21taskset20:30:173
2196799991917,1cyclictest0-21swapper/323:00:153
2196799991916,1cyclictest0-21swapper/323:20:003
2196799991916,1cyclictest0-21swapper/320:20:123
2196799991916,1cyclictest0-21swapper/319:20:083
219679999191,14cyclictest2654310-21turbostat00:25:003
219679999191,14cyclictest2623310-21turbostat00:05:003
219679999191,14cyclictest2436110-21taskset22:00:463
219679999191,14cyclictest2205645-21chrt19:15:123
22720372183,7sleep22273830-21cut20:05:202
2196799991816,1cyclictest0-21swapper/319:25:103
2196799991815,1cyclictest0-21swapper/323:25:153
2196799991815,1cyclictest0-21swapper/323:15:003
2196799991815,1cyclictest0-21swapper/300:05:183
2196799991814,1cyclictest0-21swapper/323:40:113
219679999181,14cyclictest2507573-21taskset22:50:143
219679999181,13cyclictest2669727-21turbostat00:35:003
219679999181,13cyclictest2631487-21chrt00:10:173
219679999181,13cyclictest2614560-21taskset23:57:143
219679999181,13cyclictest2581886-21taskset23:35:203
219679999181,13cyclictest2520699-21taskset22:55:233
219679999181,13cyclictest2451784-21taskset22:11:173
219679999181,13cyclictest2420693-21taskset21:51:003
219679999181,13cyclictest2359305-21taskset21:12:233
219679999181,13cyclictest2352135-21taskset21:05:293
219679999181,13cyclictest2339905-21taskset21:00:083
219679999181,13cyclictest2326612-21taskset20:46:573
219679999181,13cyclictest2313850-21taskset20:37:113
219679999181,13cyclictest2249189-21taskset19:45:233
219679999181,13cyclictest2224850-21taskset19:30:123
25714092177,6sleep12573014-21cut23:30:181
24161112177,7sleep12416978-21cut21:50:191
219679999172,12cyclictest2282017-21taskset20:14:423
2196799991715,1cyclictest0-21swapper/321:20:073
2196799991715,1cyclictest0-21swapper/319:40:013
2196799991714,1cyclictest0-21swapper/319:50:223
219679999171,13cyclictest2288251-21taskset20:17:433
219679999171,12cyclictest2537038-21taskset23:06:343
219679999171,12cyclictest2466968-21taskset22:20:393
219679999171,12cyclictest2300180-21taskset20:25:203
219679999171,12cyclictest2231858-21chrt19:35:173
219679999171,12cyclictest2202920-21taskset19:11:393
23480392160,3sleep02349755-21grep21:05:190
2196799991613,1cyclictest0-21swapper/300:25:173
219679999161,12cyclictest2492373-21taskset22:40:163
219679999161,12cyclictest2490879-21taskset22:37:273
219679999161,12cyclictest2332858-21chrt20:50:303
219679999160,12cyclictest2383711-21taskset21:30:073
25208232141,10sleep02521023-21/usr/sbin/munin22:55:250
24200432140,11sleep02420126-21ssh21:50:260
24045752141,9sleep02404610-21ntpq21:40:230
23991542130,10sleep12398921-21sendmail-msp21:40:041
26771572120,9sleep12677163-21ssh00:39:061
26687022121,8sleep12584516-21kworker/u16:1+nfsiod00:32:011
24358082121,8sleep12436024-21users22:00:281
23588622120,8sleep12358866-21ssh21:11:061
26477572111,7sleep12648479-21cat00:20:181
25986682110,2sleep20-21swapper/223:45:472
25224062110,8sleep12522412-21ssh22:59:111
24920642111,7sleep02491831-21sendmail-msp22:40:050
23914952111,2sleep1171rcu_preempt21:35:111
22947442110,1sleep00-21swapper/020:23:300
22567222112,4sleep12256755-21apt-get19:55:121
21966452110,2sleep30-21swapper/319:09:553
25917272100,8sleep22591733-21ssh23:43:102
25518032101,7sleep12552064-21unixbench_singl23:15:271
25049292101,4sleep22505043-21ntpq22:45:212
24847382100,7sleep02484828-21irqcore22:35:160
24747892100,7sleep22474795-21ssh22:25:522
24662892102,4sleep22466330-21ntpq22:20:232
23467582101,6sleep22347227-21irqcore21:05:172
22876172101,5sleep12287739-21python320:15:251
22823132102,4sleep02282343-21apt-get20:15:120
22521932100,7sleep22253910-21cut19:50:192
22178872100,8sleep02217889-21sshd-auth19:21:310
22171172101,6sleep12217205-21ntpq19:20:201
2661558290,7sleep22661562-21ssh00:28:452
2621234291,5sleep02621266-21ntpq00:00:240
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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