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2026-06-03 - 14:02
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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 Wed Jun 03, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
92252521360,3sleep286188-21systemd-journal20:40:002
821954993027,1cyclictest0-21swapper/323:20:173
821954993027,1cyclictest0-21swapper/321:00:163
821954992825,1cyclictest0-21swapper/322:55:173
821954992623,1cyclictest0-21swapper/323:20:003
821954992320,1cyclictest0-21swapper/322:45:243
821954992320,1cyclictest0-21swapper/322:20:173
821954992320,1cyclictest0-21swapper/322:00:013
821954992320,1cyclictest0-21swapper/300:25:263
821954992219,1cyclictest0-21swapper/321:25:273
821954992118,1cyclictest0-21swapper/300:30:173
821954992118,1cyclictest0-21swapper/300:00:073
82195499211,15cyclictest1263080-21taskset00:20:573
82195499211,15cyclictest1101016-21turbostat22:40:003
82195499211,14cyclictest1194346-21taskset23:39:553
82195499202,14cyclictest948141-21taskset20:59:223
821954992018,1cyclictest0-21swapper/300:10:003
821954992017,1cyclictest0-21swapper/323:55:273
821954992017,1cyclictest0-21swapper/322:05:183
821954992017,1cyclictest0-21swapper/321:15:233
821954992017,1cyclictest0-21swapper/320:25:003
821954992017,1cyclictest0-21swapper/319:20:013
82195499201,15cyclictest851491-21taskset19:42:043
821954991916,1cyclictest0-21swapper/322:25:143
821954991916,1cyclictest0-21swapper/319:20:083
821954991915,1cyclictest0-21swapper/320:00:303
82195499191,14cyclictest940593-21taskset20:50:203
82195499191,14cyclictest935133-21chrt20:48:033
82195499191,14cyclictest1015912-21chrt21:45:123
82195499191,14cyclictest1007416-21chrt21:39:033
82195499191,13cyclictest961058-21taskset21:09:563
82195499191,13cyclictest851975-21taskset19:45:013
82195499191,13cyclictest1179171-21taskset23:30:133
82195499191,13cyclictest1179171-21taskset23:30:133
82195499191,13cyclictest1178262-21taskset23:28:243
821954991910,6cyclictest12864522sleep300:35:583
821954991815,1cyclictest0-21swapper/322:00:013
821954991815,1cyclictest0-21swapper/321:10:223
821954991815,1cyclictest0-21swapper/320:40:263
821954991815,1cyclictest0-21swapper/320:00:013
821954991815,1cyclictest0-21swapper/319:50:163
82195499181,13cyclictest992552-21taskset21:30:133
82195499181,13cyclictest915744-21taskset20:30:313
82195499181,13cyclictest908779-21taskset20:25:223
82195499181,13cyclictest891028-21taskset20:15:163
82195499181,13cyclictest884167-21taskset20:10:073
82195499181,13cyclictest884167-21taskset20:10:073
82195499181,13cyclictest845196-21taskset19:39:083
82195499181,13cyclictest1216634-21taskset23:51:543
82195499181,13cyclictest1202196-21turbostat23:45:003
82195499181,13cyclictest1155210-21taskset23:14:133
82195499181,13cyclictest1101293-21taskset22:40:053
82195499181,13cyclictest1085762-21taskset22:30:073
82195499181,12cyclictest1249322-21chrt00:15:163
9628942170,6sleep1964442-21kthreadcore21:10:191
821954991714,1cyclictest0-21swapper/322:10:163
821954991714,1cyclictest0-21swapper/321:40:223
82195499171,13cyclictest1209563-21taskset23:48:573
82195499171,13cyclictest1146205-21taskset23:05:393
82195499171,13cyclictest1138978-21taskset23:02:193
82195499171,13cyclictest1069572-21taskset22:19:003
82195499171,12cyclictest922152-21taskset20:35:283
82195499171,12cyclictest877759-21taskset20:05:053
82195499171,12cyclictest1247638-21taskset00:11:073
821954991613,1cyclictest0-21swapper/322:50:113
82195499161,12cyclictest976976-21taskset21:20:033
82195499161,12cyclictest838473-21taskset19:30:063
82195499161,12cyclictest822119-21taskset19:10:053
82195499161,12cyclictest1023570-21taskset21:50:023
82195499161,11cyclictest837828-21taskset19:25:123
12360442160,6sleep014-21ksoftirqd/000:05:230
11793292162,10sleep01179401-21/usr/sbin/munin23:30:150
11793292162,10sleep01179401-21/usr/sbin/munin23:30:150
9943862140,6sleep2995965-21kthreadcore21:30:332
12319582141,10sleep21231963-21sh00:00:562
10236722141,4sleep01023832-21diskstats21:50:160
9113332131,2sleep20-21swapper/220:30:192
11535642121,9sleep01153676-21ssh23:10:260
10928762127,3sleep0151ktimers/022:33:580
10805582121,8sleep21082284-21cut22:25:182
10374892121,4sleep01037494-21sh21:56:050
9842972110,8sleep2984305-21ssh21:24:322
9420412111,3sleep00-21swapper/020:55:110
8157162110,5sleep0222-21plymouthd19:05:140
11588792110,8sleep21160567-21cut23:15:182
10366292110,8sleep11036671-21ld21:55:221
10143962111,8sleep10-21swapper/121:41:351
9706582100,2sleep00-21swapper/021:15:190
9607832100,1sleep10-21swapper/121:06:301
9342992102,4sleep2934339-21ntpq20:45:232
9291682101,6sleep0929190-21basename20:45:130
9288972102,5sleep0928927-21munin-run20:45:010
8901812101,6sleep01000-21snmpd20:12:410
8901812101,6sleep01000-21snmpd20:12:410
8830712100,7sleep1883118-21ps20:05:291
8757252100,7sleep2876386-21memory20:00:202
8648982102,4sleep0864931-21apt-get19:55:130
8601522100,2sleep10-21swapper/119:50:171
8580332100,1sleep00-21swapper/019:48:120
12807482100,3sleep20-21swapper/200:35:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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