You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-11-22 - 10:22
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 rack3slot6.osadl.org (updated Fri Nov 22, 2024 00:45:02)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311669913367,18cyclictest14-21ksoftirqd/022:10:140
311669913069,14cyclictest14-21ksoftirqd/020:00:170
311669912669,17cyclictest14-21ksoftirqd/020:35:100
311669912267,16cyclictest14-21ksoftirqd/000:15:130
311669911911,100cyclictest0-21swapper/023:40:140
311669911540,20cyclictest0-21swapper/021:25:150
311669911235,35cyclictest0-21swapper/021:10:120
311669911164,18cyclictest14-21ksoftirqd/020:20:120
311669911117,22cyclictest0-21swapper/023:50:100
311669910614,26cyclictest0-21swapper/021:35:090
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional