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2026-08-27 - 06:50
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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 Aug 27, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
17963842870,6sleep21664580-21kworker/u16:1+xprtiod00:35:182
1313276992724,1cyclictest0-21swapper/322:40:173
1313276992623,1cyclictest0-21swapper/323:20:003
1313276992421,1cyclictest0-21swapper/323:50:013
1313276992421,1cyclictest0-21swapper/323:40:183
1313276992421,1cyclictest0-21swapper/320:35:003
1313276992421,1cyclictest0-21swapper/319:55:013
1313276992421,1cyclictest0-21swapper/300:20:203
1313276992319,1cyclictest0-21swapper/321:20:143
131327699224,6cyclictest1634475-21turbostat22:55:003
131327699224,6cyclictest1634475-21turbostat22:55:003
1313276992219,1cyclictest0-21swapper/322:20:003
131327699221,16cyclictest1475638-21taskset21:11:273
131327699221,16cyclictest1475638-21taskset21:11:263
1313276992118,1cyclictest0-21swapper/323:30:013
1313276992111,7cyclictest17996012sleep300:38:283
131327699211,15cyclictest1601829-21taskset22:31:503
131327699211,15cyclictest1449388-21taskset20:50:263
131327699211,14cyclictest1430713-21taskset20:40:003
131327699211,14cyclictest1366642-21taskset19:50:003
131327699208,8cyclictest1547776-21turbostat22:00:013
1313276992017,1cyclictest0-21swapper/323:00:233
1313276992017,1cyclictest0-21swapper/322:00:183
1313276992017,1cyclictest0-21swapper/321:01:013
131327699201,15cyclictest1404867-21taskset20:18:393
131327699201,14cyclictest1745053-21sleep00:05:003
131327699201,14cyclictest1563275-21taskset22:09:253
131327699201,14cyclictest1532300-21taskset21:50:083
1313276991916,1cyclictest0-21swapper/321:40:233
1313276991916,1cyclictest0-21swapper/320:40:203
1313276991916,1cyclictest0-21swapper/319:30:163
1313276991916,1cyclictest0-21swapper/319:20:153
1313276991916,1cyclictest0-21swapper/300:10:003
1313276991916,1cyclictest0-21swapper/300:00:003
131327699191,14cyclictest1776898-21chrt00:25:123
131327699191,14cyclictest1579461-21taskset22:20:023
131327699191,14cyclictest1570296-21taskset22:12:053
131327699191,14cyclictest1359304-21taskset19:40:303
131327699191,13cyclictest1695370-21taskset23:30:243
1313276991815,1cyclictest0-21swapper/319:25:153
131327699181,13cyclictest1761058-21taskset00:15:103
131327699181,13cyclictest1680211-21taskset23:20:373
131327699181,13cyclictest1664950-21taskset23:12:163
131327699181,13cyclictest1641438-21taskset22:57:283
131327699181,13cyclictest1442965-21chrt20:45:253
131327699181,13cyclictest1411487-21taskset20:25:013
131327699181,13cyclictest1398452-21taskset20:13:183
131327699181,13cyclictest1379633-21chrt20:00:113
131327699181,13cyclictest1347792-21taskset19:35:133
131327699181,13cyclictest1322069-21taskset19:15:133
131327699181,12cyclictest1508517-21taskset21:35:013
131327699180,13cyclictest1587537-21chrt22:25:133
16975452171,6sleep21697604-21munin-run23:35:012
131327699172,11cyclictest1650825-21taskset23:05:143
1313276991714,1cyclictest0-21swapper/321:15:273
1313276991714,1cyclictest0-21swapper/319:55:203
131327699171,13cyclictest1785754-21taskset00:30:143
131327699171,13cyclictest1760316-21taskset00:13:543
131327699171,13cyclictest1728096-21taskset23:52:253
131327699171,13cyclictest1704247-21taskset23:36:453
131327699171,13cyclictest1499633-21taskset21:27:233
131327699171,13cyclictest1450113-21taskset20:55:033
131327699171,13cyclictest1389728-21taskset20:05:203
131327699171,13cyclictest1319729-21chrt19:15:013
131327699171,12cyclictest1609158-21taskset22:35:353
131327699171,12cyclictest1524452-21taskset21:45:073
131327699171,12cyclictest1514574-21chrt21:35:293
131327699171,12cyclictest1468699-21taskset21:05:303
131327699171,12cyclictest1417530-21taskset20:25:533
15941212160,9sleep244-21ksoftirqd/222:27:172
131327699161,12cyclictest1625599-21taskset22:47:263
13130602160,2sleep30-21swapper/319:09:003
14855192151,2sleep20-21swapper/221:20:172
17138792141,10sleep21714061-21grep23:45:152
16500922140,7sleep11650100-21ssh23:04:281
16085022142,3sleep21608547-21ntpq22:35:232
15541112141,9sleep11547821-21sendmail-msp22:00:421
14363282140,1sleep00-21swapper/020:40:250
17917262130,2sleep10-21swapper/100:33:291
16571992130,6sleep01657207-21ssh23:07:280
17842932120,9sleep21784299-21ssh00:29:422
17684532124,5sleep01768458-21diskmemload00:19:330
17436972120,9sleep11743701-21ssh00:01:221
15084342120,6sleep21508513-21latency_hist21:35:012
13336282121,9sleep2222-21plymouthd19:20:222
13189072126,3sleep00-21swapper/019:10:260
16818122110,8sleep01681864-21923:25:010
16725512110,8sleep21672557-21ssh23:16:252
16568132111,2sleep1222-21plymouthd23:06:211
16407032110,4sleep21640709-21ssh22:55:322
14566602112,6sleep01456286-21sendmail-msp21:00:150
14052902110,3sleep2222-21plymouthd20:20:082
14002572111,7sleep11401822-21kthreadcore20:15:171
13720792111,7sleep11372109-21gcc19:50:241
13551992110,2sleep1222-21plymouthd19:40:251
17523652100,7sleep21752369-21ssh00:08:362
16501822100,3sleep21650188-21ssh23:04:502
15402542101,5sleep11540268-21ssh21:55:131
15308842102,4sleep2222-21plymouthd21:46:562
15152702100,3sleep21515276-21ssh21:37:212
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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