You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-29 - 21:14
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 rack0slot4.osadl.org (updated Sat Nov 29, 2025 00:46:54)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
10281892391368,15sleep20-21swapper/219:07:198
10283342384362,14sleep60-21swapper/619:09:1612
10282292363340,15sleep140-21swapper/1419:07:486
10248222354313,33sleep10-21swapper/119:05:101
10247222348324,15sleep90-21swapper/919:05:0015
10282632345323,14sleep130-21swapper/1319:08:185
10282482344321,15sleep150-21swapper/1519:08:057
10282382344321,15sleep50-21swapper/519:07:5511
10280982340317,15sleep70-21swapper/719:06:0413
10283832339315,15sleep120-21swapper/1219:09:544
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional