You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-04-04 - 05:40
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 rackeslot3.osadl.org (updated Fri Apr 04, 2025 00:43:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2805700997441,30cyclictest2760656-1kworker/1:0H00:16:371
2805700997243,28cyclictest2822414-21kworker/1:120:00:181
2805700997142,28cyclictest2760656-1kworker/1:0H21:05:151
2805700996944,24cyclictest2760656-1kworker/1:0H00:20:161
2805700996937,31cyclictest2878191-21kworker/1:000:00:181
2805700996740,26cyclictest2760656-1kworker/1:0H22:00:151
2805700996739,27cyclictest2760656-1kworker/1:0H22:20:051
280570099661,64cyclictest0-21swapper/121:42:061
2805700996535,29cyclictest2760656-1kworker/1:0H20:20:161
2805700996534,30cyclictest2812598-21kworker/1:119:35:171
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional