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2025-11-02 - 21:13
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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 rack2slot7.osadl.org (updated Sun Nov 02, 2025 12:43:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4051615995528,5cyclictest11050irq/107-eth%d07:15:411
405161499526,43cyclictest0-21swapper/011:35:440
405161499416,18cyclictest0-21swapper/011:33:060
405161499413,21cyclictest4136004-21ssh10:08:200
4051614993818,12cyclictest4187592-21apt-key11:15:410
405161499331,4cyclictest16501-21sed11:42:560
4051614993220,9cyclictest4081971-21sendmail-msp08:45:430
405161499314,11cyclictest4153030-21ssh10:31:460
405161499312,20cyclictest1-21systemd12:15:410
4051614993020,8cyclictest0-21swapper/012:37:540
4051614993018,2cyclictest0-21swapper/012:02:560
405161599296,12cyclictest11050irq/107-eth%d12:42:561
405161499292,16cyclictest4181322-21/usr/sbin/munin11:07:580
112699290,3rtkit-daemon1125-21rtkit-daemon10:33:371
405161499284,5cyclictest0-21swapper/011:15:410
4051614992826,2cyclictest0-21swapper/009:12:570
4051614992816,4cyclictest1-21systemd12:25:410
4051614992814,8cyclictest4139080-21ntpq10:12:560
405161499281,25cyclictest0-21swapper/011:47:590
405161499281,25cyclictest0-21swapper/011:47:590
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

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