You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-13 - 23:31
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 20 highest latencies:
System rack3slot6.osadl.org (updated Mon Oct 13, 2025 12:45:03)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3011021200,6chrt29611-21apt-get12:00:131
101412980,6sleep010139-21grep09:30:370
2354429725,26sleep00-21swapper/007:09:220
2319529719,32sleep10-21swapper/107:06:091
23741999211,16cyclictest0-21swapper/012:05:130
2374699918,18cyclictest0-21swapper/111:25:181
2374699916,19cyclictest31845-21apt-get12:05:141
23741999010,16cyclictest0-21swapper/010:05:150
23741999010,16cyclictest0-21swapper/010:05:140
2374199889,17cyclictest0-21swapper/010:10:130
23741998810,17cyclictest0-21swapper/011:20:140
23741998810,16cyclictest0-21swapper/007:20:140
23741998810,15cyclictest0-21swapper/008:55:140
2374199879,17cyclictest0-21swapper/008:00:140
2374699867,17cyclictest0-21swapper/111:15:171
23746998621,22cyclictest27808-21cat08:50:241
23741998613,16cyclictest0-21swapper/012:00:250
23741998612,17cyclictest0-21swapper/010:00:160
23741998612,16cyclictest0-21swapper/010:50:150
23741998610,16cyclictest0-21swapper/007:10:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional