You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-01 - 04:20
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 Tue Jul 01, 2025 00:45:05)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166369910975,20cyclictest14-21ksoftirqd/019:35:200
166419910629,28cyclictest0-21swapper/121:45:181
16636999967,20cyclictest14-21ksoftirqd/023:00:160
16636999967,20cyclictest14-21ksoftirqd/023:00:150
16636999866,19cyclictest14-21ksoftirqd/000:15:130
16636999761,23cyclictest14-21ksoftirqd/021:45:190
16636999712,73cyclictest0-21swapper/021:55:160
1632329731,53sleep10-21swapper/119:08:411
16641999613,62cyclictest0-21swapper/123:40:141
16641999613,62cyclictest0-21swapper/123:40:141
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional