You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-04-20 - 08:57
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 Sat Apr 20, 2024 00:44:23)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
40572263231,20sleep00-21swapper/019:09:350
37962262228,21sleep20-21swapper/219:06:272
38362261229,20sleep10-21swapper/119:06:431
38552257230,16sleep30-21swapper/319:06:563
75812670,0sleep10-21swapper/123:19:531
183372650,0sleep10-21swapper/121:26:521
7972620,0sleep10-21swapper/120:10:171
266642590,0sleep30-21swapper/321:32:483
53862580,0sleep30-21swapper/320:20:213
79872560,0sleep20-21swapper/221:20:142
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional