You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-17 - 15:37
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 Fri Oct 17, 2025 00:46:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
23686952379356,15sleep120-21swapper/1219:06:054
23687752364318,15sleep140-21swapper/1419:07:116
23654182359351,5sleep50-21swapper/519:05:0911
23687262358315,34sleep20-21swapper/219:06:268
23688292353309,16sleep30-21swapper/319:07:499
23689072347326,13sleep40-21swapper/419:08:5510
23654192343319,15sleep60-21swapper/619:05:1012
23686732342319,15sleep80-21swapper/819:05:4414
23688742341318,15sleep70-21swapper/719:08:2413
23687372339316,15sleep110-21swapper/1119:06:363
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional