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2026-07-09 - 07:35
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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 Jul 09, 2026 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3357928994011,396cyclictest3385694-21turbostat19:34:553
3357928993027,1cyclictest0-21swapper/322:20:003
3357928993027,1cyclictest0-21swapper/322:20:003
3357928992724,1cyclictest0-21swapper/321:30:013
335792899259,12cyclictest3600478-21sleep22:04:593
3357928992421,1cyclictest0-21swapper/300:35:003
3357928992320,1cyclictest0-21swapper/300:25:173
335792899222,15cyclictest3718130-21taskset23:19:073
3357928992219,1cyclictest0-21swapper/323:51:353
3357928992219,1cyclictest0-21swapper/323:35:113
3357928992219,1cyclictest0-21swapper/321:00:153
3357928992219,1cyclictest0-21swapper/300:10:203
3357928992119,1cyclictest0-21swapper/320:30:183
3357928992118,1cyclictest0-21swapper/321:40:173
3357928992118,1cyclictest0-21swapper/319:20:183
3357928992118,1cyclictest0-21swapper/300:00:033
37398122201,14sleep03739858-21ntpq23:30:230
335792899202,14cyclictest3763552-21taskset23:45:243
3357928992017,1cyclictest0-21swapper/323:55:143
3357928992017,1cyclictest0-21swapper/323:40:183
3357928992016,2cyclictest34232002sleep319:55:233
335792899201,14cyclictest3616093-21taskset22:14:553
3357928991916,1cyclictest0-21swapper/323:00:193
3357928991916,1cyclictest0-21swapper/322:20:113
3357928991916,1cyclictest0-21swapper/319:45:193
3357928991916,1cyclictest0-21swapper/300:20:103
3357928991915,1cyclictest0-21swapper/320:40:163
335792899188,7cyclictest3385687-21turbostat19:30:013
3357928991815,1cyclictest0-21swapper/319:50:223
3357928991811,5cyclictest3357800-21turbostat19:14:553
335792899181,14cyclictest3520359-21taskset21:11:213
335792899181,13cyclictest3805595-21taskset00:15:113
335792899181,13cyclictest3704990-21taskset23:10:163
335792899181,13cyclictest3585792-21taskset21:55:153
335792899181,13cyclictest3583277-21taskset21:51:133
335792899181,13cyclictest3462246-21taskset20:26:053
335792899181,13cyclictest3403995-21taskset19:40:233
335792899172,12cyclictest3372505-21taskset19:16:233
3357928991714,1cyclictest0-21swapper/323:20:053
3357928991714,1cyclictest0-21swapper/322:45:143
3357928991714,1cyclictest0-21swapper/322:35:163
3357928991714,1cyclictest0-21swapper/320:20:133
3357928991713,1cyclictest0-21swapper/321:20:123
335792899171,13cyclictest3739766-21taskset23:30:213
335792899171,13cyclictest3733363-21taskset23:27:403
335792899171,13cyclictest3680269-21taskset22:55:173
335792899171,13cyclictest3678906-21taskset22:54:363
335792899171,13cyclictest3662468-21taskset22:42:133
335792899171,13cyclictest3632307-21taskset22:25:063
335792899171,13cyclictest3559482-21taskset21:35:513
335792899171,13cyclictest3475391-21turbostat20:39:593
335792899171,12cyclictest3647662-21taskset22:34:553
335792899171,12cyclictest3575781-21chrt21:47:053
335792899171,12cyclictest3527860-21taskset21:15:303
335792899171,12cyclictest3482105-21taskset20:45:063
335792899170,14cyclictest3430414-21taskset20:04:573
36204272161,5sleep13621522-21memory22:15:191
36204272161,5sleep13621522-21memory22:15:181
3357928991613,1cyclictest0-21swapper/300:05:173
335792899161,12cyclictest3843229-21taskset00:36:573
335792899161,12cyclictest3606034-21taskset22:05:213
335792899161,12cyclictest3500673-21taskset20:55:323
335792899161,12cyclictest3494629-21taskset20:54:573
335792899161,12cyclictest3441554-21taskset20:10:193
335792899160,13cyclictest3551831-21taskset21:31:283
335792899160,12cyclictest3701181-21taskset23:05:353
335792899160,12cyclictest3436542-21taskset20:05:583
36611972151,4sleep03661229-21ntpq22:40:240
35514192151,10sleep23551438-21ssh21:30:282
35079582151,10sleep03507982-21/usr/sbin/munin21:05:130
335792899151,12cyclictest3398126-21taskset19:35:593
335792899151,11cyclictest3507767-21taskset21:05:023
335792899151,10cyclictest3449491-21taskset20:17:403
38107422141,10sleep03810781-21ntp_states00:15:220
37634672140,10sleep13763502-21ntpq23:45:231
37428552141,10sleep03743468-21sed23:35:150
34037592141,5sleep03403896-21ntpq19:40:220
33574362140,2sleep30-21swapper/319:05:413
33537662140,9sleep03355564-21cut19:05:180
38351202131,9sleep03835126-21ssh00:31:080
37516832131,9sleep23752418-21cat23:40:202
34439402130,6sleep23444571-21irqrtprio20:15:152
33517722131,7sleep2222-21plymouthd19:05:122
37634172120,8sleep03763466-21ld23:45:230
37174062121,2sleep00-21swapper/023:17:070
36704722121,8sleep13670476-21ssh22:47:541
35752932120,9sleep03575299-21ssh21:45:500
35213852120,9sleep23521389-21ssh21:14:122
34566152120,9sleep23456683-21/usr/sbin/munin20:25:132
33680482120,4sleep23369216-21kthreadcore19:15:182
38359932110,8sleep13835999-21ssh00:33:381
36866172116,2sleep10-21swapper/122:59:161
36782002110,9sleep13678206-21ssh22:52:391
36618532110,8sleep13661859-21ssh22:40:321
36244272110,8sleep23624077-21sendmail-msp22:20:122
36100402110,8sleep23611527-21cut22:10:192
35900092110,7sleep23590141-21ssh21:55:192
35680752110,8sleep13568083-21ssh21:42:421
34821132110,2sleep03482146-21apt-get20:45:130
34455732110,8sleep03447362-21tr20:15:170
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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