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2026-03-12 - 07:22
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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 Mar 12, 2026 00:43:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4024928993026,1cyclictest0-21swapper/321:05:013
4024928992622,1cyclictest0-21swapper/320:40:013
4024928992219,1cyclictest0-21swapper/319:50:003
4024928992118,1cyclictest0-21swapper/321:00:003
4024928992116,2cyclictest4084958-21turbostat19:55:013
4024928992017,1cyclictest0-21swapper/320:00:003
4024928992012,4cyclictest4136206-21turbostat20:35:003
402492899201,15cyclictest219400-21chrt00:10:123
4024928991917,1cyclictest0-21swapper/323:20:013
4024928991916,1cyclictest0-21swapper/323:50:133
4024928991916,1cyclictest0-21swapper/322:55:163
4024928991916,1cyclictest0-21swapper/322:50:003
402492899191,13cyclictest4110589-21taskset20:15:003
402492899188,7cyclictest1903022sleep323:45:203
4024928991816,1cyclictest0-21swapper/323:05:003
4024928991815,1cyclictest0-21swapper/322:20:243
4024928991815,1cyclictest0-21swapper/321:25:113
402492899172,12cyclictest45095-21turbostat21:54:593
4024928991715,1cyclictest0-21swapper/300:25:013
4024928991714,1cyclictest0-21swapper/323:05:143
4024928991714,1cyclictest0-21swapper/319:30:173
4024928991714,1cyclictest0-21swapper/319:15:173
4024928991714,1cyclictest0-21swapper/300:30:173
402492899171,13cyclictest206529-21chrt00:00:103
402492899171,12cyclictest89938-21turbostat22:30:003
402492899171,12cyclictest51460-21taskset21:59:563
402492899171,12cyclictest4116957-21turbostat20:20:013
402492899171,12cyclictest173999-21turbostat23:35:003
402492899171,12cyclictest121832-21chrt22:54:223
402492899170,14cyclictest219139-21sleep00:09:593
402492899162,11cyclictest160905-21turbostat23:25:003
4024928991613,1cyclictest0-21swapper/323:40:163
4024928991613,1cyclictest0-21swapper/320:50:133
402492899161,12cyclictest64285-21turbostat22:10:003
402492899161,12cyclictest57727-21taskset22:02:563
402492899161,12cyclictest4180994-21chrt21:07:013
402492899161,12cyclictest4129470-21taskset20:26:073
402492899161,12cyclictest4123244-21chrt20:23:053
402492899161,12cyclictest4065110-21taskset19:35:333
402492899161,12cyclictest32059-21taskset21:42:163
402492899161,11cyclictest167545-21taskset23:29:573
402492899161,11cyclictest147421-21chrt23:10:483
402492899160,13cyclictest70393-21chrt22:11:453
402492899160,12cyclictest4193804-21chrt21:16:473
402492899157,5cyclictest2058822sleep323:55:543
402492899156,6cyclictest40309642sleep319:10:503
4024928991512,1cyclictest0-21swapper/322:40:173
4024928991512,1cyclictest0-21swapper/321:46:503
4024928991512,1cyclictest0-21swapper/321:20:163
4024928991512,1cyclictest0-21swapper/320:40:143
4024928991512,1cyclictest0-21swapper/300:35:153
402492899151,11cyclictest96552-21taskset22:35:063
402492899151,11cyclictest95263-21taskset22:30:183
402492899151,11cyclictest76042-21taskset22:15:183
402492899151,11cyclictest4149211-21taskset20:45:093
402492899151,11cyclictest4103796-21taskset20:05:513
402492899151,11cyclictest4097412-21taskset20:01:053
402492899151,11cyclictest4046492-21taskset19:25:033
402492899151,11cyclictest225734-21taskset00:15:043
402492899151,11cyclictest19732-21taskset21:35:083
402492899151,11cyclictest19244-21taskset21:31:583
402492899151,11cyclictest174225-21taskset23:35:063
402492899150,12cyclictest4186744-21taskset21:10:193
402492899150,12cyclictest4065719-21chrt19:40:023
402492899150,12cyclictest240347-21taskset00:25:183
402492899150,11cyclictest4040179-21taskset19:20:113
673092141,4sleep269414-21kthreadcore22:10:182
307598140,9rtkit-daemon4051835-21ntp_states19:25:210
2191092141,10sleep2219141-21basename00:09:592
307598130,6rtkit-daemon3256-21sendmail-mta22:30:290
41108152121,7sleep04110837-21apt-get20:15:140
386742121,8sleep038691-21/usr/sbin/munin21:49:590
263372120,9sleep126138-21/usr/sbin/munin21:40:151
834942110,8sleep283513-21latency_hist22:25:012
41876012112,3sleep04187375-21kworker/0:2+kacpi_notify21:14:410
41558162111,7sleep04155843-21grep20:50:130
40746072111,2sleep20-21swapper/219:45:192
40540122114,5sleep24055190-21kthreadcore19:30:172
2089382110,8sleep0210990-21cut00:00:170
1480082112,5sleep1148041-21apt-get23:15:131
926232100,7sleep194685-21cut22:30:171
41443402100,4sleep14146294-21kthreadcore20:40:171
307598100,6rtkit-daemon3256-21sendmail-mta20:37:241
307598100,5rtkit-daemon4033913-21diskstats19:15:130
307598100,5rtkit-daemon232175-21apt-get00:20:090
307598100,5rtkit-daemon217-21plymouthd22:41:370
307598100,5rtkit-daemon217-21plymouthd20:28:171
307598100,5rtkit-daemon206223-21cron23:59:590
1989032100,3sleep2198961-21ntp_states23:50:212
1931622100,7sleep2193494-21apt-config23:50:002
133712100,7sleep013429-21grep21:30:120
65921290,6sleep167307-21cat22:10:171
4134797290,6sleep04135236-21expr20:30:180
4116947291,4sleep11-21systemd20:20:011
4081654290,6sleep04083770-21cut19:50:170
4040144291,4sleep24040176-21apt-get19:20:112
40249289997,1cyclictest0-21swapper/319:10:023
4018676291,3sleep24018710-21apt-get19:05:112
30759890,5rtkit-daemon493-21gmain00:19:220
30759890,5rtkit-daemon475-21wpa_supplicant20:50:211
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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