You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-15 - 20:18
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 Sat Aug 15, 2026 00:43:47)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2730484995586,0cyclictest0-21swapper/1322:27:205
2730484995586,0cyclictest0-21swapper/1322:27:205
2730454995554,0cyclictest0-21swapper/619:26:2012
273045199551550,1cyclictest2887969-21kworker/5:1+i915-unordered22:27:2011
273045199551550,1cyclictest2887969-21kworker/5:1+i915-unordered22:27:2011
273048799539538,1cyclictest2709748-21kworker/14:0+i915-unordered19:26:206
27304779952291,422cyclictest2871997-21kworker/11:2+i915-unordered22:01:203
27304929951828,489cyclictest0-21swapper/1523:33:207
273048199511509,2cyclictest2755484-21kworker/12:2+i915-unordered19:39:204
273048199511509,2cyclictest2755484-21kworker/12:2+i915-unordered19:39:204
2730487995104,505cyclictest0-21swapper/1420:27:206
27304779949970,420cyclictest2795517-21kworker/11:2+i915-unordered20:38:203
27304359949128,7cyclictest0-21swapper/123:30:431
27304779949041,448cyclictest0-21swapper/1121:32:203
27304779948825,462cyclictest0-21swapper/1123:41:203
27304779948723,463cyclictest0-21swapper/1122:27:203
27304779948723,463cyclictest0-21swapper/1122:27:203
273048199484482,2cyclictest2779271-21kworker/12:1+i915-unordered20:28:204
27304779948410,58cyclictest0-21swapper/1121:46:203
27304929948218,463cyclictest0-21swapper/1523:26:207
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional