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2026-04-11 - 22:40
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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
Characteristics of the 50 highest latencies:
System rackeslot2.osadl.org (updated Sat Apr 11, 2026 12:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
86462721040,1sleep10-21swapper/107:40:591
9252642980,2sleep20-21swapper/208:26:042
12321662700,1sleep11232165-21ssh11:56:341
11820502650,1sleep01182049-21cut11:25:590
10501552380,2sleep30-21swapper/309:56:073
823765993220,7cyclictest0-21swapper/010:05:540
383433398310,3rtkit-daemon3952751-21ntpd09:59:240
10150442290,1sleep11014986-21ssh09:35:571
8252102280,3sleep1825212-21irqrtprio07:11:011
12237352280,1sleep20-21swapper/211:51:062
823766992620,2cyclictest134050irq/121-eno111:15:001
82376599269,14cyclictest995758-21kthreadcore09:21:040
823765992623,2cyclictest1135186-21grep10:55:000
823766992320,2cyclictest1256117-21grep12:15:001
383433398230,5rtkit-daemon3851702-21mta-sts-daemon10:33:080
383433398230,2rtkit-daemon0-21swapper/010:55:580
823767992219,1cyclictest0-21swapper/209:45:012
823767992218,2cyclictest0-21swapper/212:00:372
383433398220,2rtkit-daemon3851705-21mta-sts-daemon10:17:020
823767992118,1cyclictest0-21swapper/208:35:012
823766992117,3cyclictest1290-21dbus-daemon09:20:011
823766992117,3cyclictest1240808-21latency_hist12:05:011
823765992118,2cyclictest1150181-21cron11:05:000
823765992113,4cyclictest0-21swapper/012:40:010
823765992112,5cyclictest1095954-21unixbench-2d10:26:100
82376599210,19cyclictest911415-21grep08:16:040
383433398210,3rtkit-daemon3952751-21ntpd09:28:500
383433398210,2rtkit-daemon1120508-21ssh10:45:170
823767992017,1cyclictest0-21swapper/209:05:002
823767992017,1cyclictest0-21swapper/207:30:002
823766992017,2cyclictest932834-21grep08:35:031
823766992017,2cyclictest1082218-21apt-config10:20:001
823766992014,2cyclictest383433398rtkit-daemon09:42:361
82376599209,6cyclictest0-21swapper/012:30:010
823765992013,6cyclictest0-21swapper/012:20:010
823765992012,4cyclictest1055951-21kthreadcore10:01:030
383433398200,3rtkit-daemon3952751-21ntpd09:40:160
383433398200,3rtkit-daemon3840882-21snmpd07:14:440
823767991915,2cyclictest0-21swapper/211:45:592
823766991916,2cyclictest844814-21cron07:25:001
823766991916,2cyclictest1180816-21systemd-run11:25:011
823766991912,3cyclictest1211977-21fschecks_count11:45:581
823765991916,2cyclictest963831-21systemctl09:00:000
823765991912,6cyclictest0-21swapper/010:45:030
823765991910,8cyclictest0-21swapper/011:35:540
2649091190,2phc2sys0-21swapper/310:59:263
82376799189,5cyclictest0-21swapper/207:30:552
823767991816,1cyclictest0-21swapper/207:15:012
823767991815,1cyclictest0-21swapper/212:35:002
823767991815,1cyclictest0-21swapper/210:37:392
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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