You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-12-03 - 12:38
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 rack9slot2 (updated Sun Dec 03, 2023 00:43:25)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
311052328190,122sleep20-21swapper/22
310112295224,59sleep10-21swapper/11
327012250179,24sleep00-21swapper/00
325342230192,25sleep30-21swapper/33
38199201197,2cyclictest0-21swapper/22
37799185180,3cyclictest0-21swapper/11
3248521600,1sleep20-21swapper/22
37599111108,2cyclictest0-21swapper/00
38699109104,3cyclictest4027-21strings3
201182580,3sleep09-21ksoftirqd/00
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional