You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-19 - 03:05
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 Apr 18, 2024 12:44:24)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
123922277245,20sleep10-21swapper/107:06:091
125382269220,38sleep20-21swapper/207:08:042
125612267232,23sleep00-21swapper/007:08:210
124192261226,22sleep30-21swapper/307:06:323
80842610,0sleep10-21swapper/110:09:541
274102560,0sleep30-21swapper/311:41:503
259752550,0sleep20-21swapper/209:57:412
76142230,0sleep30-21swapper/311:00:203
141532180,1sleep30-21swapper/307:10:213
85472160,0sleep10-21swapper/111:51:371
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional