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2026-04-26 - 00:09
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Data to construct the above plot have been generated using the RT test utility cyclictest.

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 20 highest latencies:
System rackbslot6.osadl.org (updated Sat Apr 25, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2555921410,4sleep11757999cyclictest11:44:351
1068911110,41ptp4l401ktimersoftd/308:21:083
106891740,1ptp4l401ktimersoftd/312:07:463
106891690,1ptp4l401ktimersoftd/313:10:113
106891690,1ptp4l401ktimersoftd/312:13:483
106891680,1ptp4l401ktimersoftd/312:25:173
154152664,47sleep00-21swapper/008:19:250
106891660,2ptp4l19536-21kworker/3:113:44:033
290712630,2sleep20-21swapper/211:48:502
223902630,2sleep30-21swapper/311:41:083
106891610,1ptp4l401ktimersoftd/310:38:373
208402600,2sleep00-21swapper/012:13:370
1758799605,21cyclictest3934-21/usr/sbin/munin13:34:452
1758799600,23cyclictest9064-21/usr/sbin/munin13:39:482
1758799591,22cyclictest28983-21mailstats11:14:382
135562590,1sleep00-21swapper/013:11:540
1758799581,25cyclictest10695-21diskmemload12:37:562
106891580,1ptp4l401ktimersoftd/310:53:113
1758799571,23cyclictest17702-21irqstats12:09:342
106891570,1ptp4l401ktimersoftd/313:17:383
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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