You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-06 - 06:37
Click here to display the system's profile data.
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 rackeslot8.osadl.org (updated Sun Jul 06, 2025 00:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
266188021680,1sleep30-21swapper/300:22:493
22832342790,2sleep12283238-21needreboot20:15:211
2194803992925,3cyclictest2597933-21systemd-run23:45:000
2194806992822,4cyclictest2370341-21systemd-run21:25:001
2194806992724,2cyclictest522-21in:imuxsock23:59:591
2194816992623,1cyclictest0-21swapper/300:35:003
2194810992622,2cyclictest2247059-21cat19:50:002
2194810992622,2cyclictest0-21swapper/219:40:002
2194806992622,3cyclictest2606079-21apt-key23:50:001
2194803992617,7cyclictest2260244-21irqcore20:00:180
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional