You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-30 - 15:31
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 rack0slot8.osadl.org (updated Sat Aug 30, 2025 12:45:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
5791969948350,432cyclictest0-21swapper/1511:48:427
5791969948350,432cyclictest0-21swapper/1511:48:417
5791949945019,28cyclictest0-21swapper/1410:33:496
5791829945023,27cyclictest0-21swapper/209:22:318
5791819944618,28cyclictest0-21swapper/110:04:151
5791849944517,27cyclictest0-21swapper/410:41:2610
5791969944416,28cyclictest0-21swapper/1512:23:597
5791899944437,28cyclictest2981334-21TaskCon~ller15
5791949943910,28cyclictest0-21swapper/1411:26:586
579194994386,28cyclictest0-21swapper/1407:55:566
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional