You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-18 - 11:38
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 rackaslot8.osadl.org (updated Thu Sep 18, 2025 00:44:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
209232317288,18sleep20-21swapper/219:09:312
208792278243,23sleep10-21swapper/119:08:581
207752277245,21sleep00-21swapper/019:07:350
205902269209,47sleep30-21swapper/319:05:333
148522930,0sleep20-21swapper/200:20:262
198812620,0sleep20-21swapper/222:03:282
241322610,1sleep30-21swapper/323:15:013
116442600,0sleep30-21swapper/323:05:203
195462580,0sleep10-21swapper/100:25:141
277512560,0sleep00-21swapper/000:32:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional