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2026-07-05 - 16:56
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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 Sun Jul 05, 2026 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2318621710,4sleep22282199cyclictest09:03:292
1737721410,4sleep22282199cyclictest12:08:492
1737721410,4sleep22282199cyclictest12:08:492
2764221320,5sleep12281499cyclictest13:25:041
1068911040,4ptp4l401ktimersoftd/308:58:383
106891770,1ptp4l401ktimersoftd/311:38:203
106891680,1ptp4l401ktimersoftd/313:40:273
224722634,10sleep00-21swapper/009:00:290
198432590,4sleep32282799cyclictest14:23:443
22821995813,13cyclictest3457-21awk10:33:562
185522580,2sleep00-21swapper/012:09:470
185522580,2sleep00-21swapper/012:09:470
22821995710,12cyclictest5542-21/usr/sbin/munin14:08:472
32162560,2sleep20-21swapper/209:28:262
2282199568,13cyclictest10176-21ssh12:02:162
2282199549,17cyclictest10186-21/usr/sbin/munin14:13:442
2282199548,12cyclictest13201-21ssh12:04:042
58102520,2sleep10-21swapper/113:36:371
2282199529,11cyclictest4962-21awk10:38:452
2282199518,18cyclictest17011-21expr11:03:412
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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