You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-08 - 22:00
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 rack0slot5.osadl.org (updated Wed Apr 08, 2026 00:43:48)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
11735099549548,1cyclictest206373-21kworker/4:2+i915-unordered21:01:2110
11739499528526,1cyclictest311081-21kworker/15:1+i915-unordered23:07:217
11735799524522,1cyclictest372361-21kworker/6:1+i915-unordered00:32:2112
11735799524522,1cyclictest372361-21kworker/6:1+i915-unordered00:32:2112
11734299523522,1cyclictest0-21swapper/221:58:218
11734299523522,1cyclictest0-21swapper/221:58:218
1173919952220,501cyclictest0-21swapper/1400:38:216
1173919952220,501cyclictest0-21swapper/1400:38:216
11737199517515,1cyclictest250887-21kworker/10:0+i915-unordered21:58:212
11737199517515,1cyclictest250887-21kworker/10:0+i915-unordered21:58:212
11737199489487,2cyclictest234591-21kworker/10:1+i915-unordered21:52:212
11737199489487,2cyclictest234591-21kworker/10:1+i915-unordered21:52:212
11739499485455,30cyclictest0-21swapper/1521:46:217
11739199481481,0cyclictest186512-21kworker/14:0+i915-unordered20:40:216
11736999475474,1cyclictest194343-21kworker/9:0+i915-unordered20:42:2115
11738399472470,2cyclictest150149-21kworker/12:2+i915-unordered00:30:214
11738399472470,2cyclictest150149-21kworker/12:2+i915-unordered00:30:214
11735799470468,2cyclictest383534-21kworker/6:0+i915-unordered00:38:2112
11735799470468,2cyclictest383534-21kworker/6:0+i915-unordered00:38:2112
1173479946619,29cyclictest0-21swapper/320:54:449
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional