You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-21 - 02:28
Click here to display the system's profile data or here to proceed to next system.
Click on a legend element to toggle display of that core, ctrl-click inverts display, shift-click enables all.

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 10 highest latencies:
System rackeslot3.osadl.org (updated Mon Apr 20, 2026 12:43:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2785621996361,1cyclictest0-21swapper/110:35:161
2785621996243,18cyclictest2957254-21kworker/1:211:55:171
2785621996042,16cyclictest2876109-21kworker/1:110:30:121
278562199600,58cyclictest2824076-21cron09:10:001
2785621995957,1cyclictest0-21swapper/112:31:321
2785621995944,14cyclictest2938177-21kworker/1:211:29:111
2785621995944,14cyclictest2929474-21kworker/1:011:20:541
2785621995942,16cyclictest2967948-21kworker/1:312:15:141
2785621995941,17cyclictest2811714-21kworker/1:008:40:011
2785621995940,17cyclictest2811714-21kworker/1:008:45:151
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional