You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-09 - 05:24
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
Characteristics of the 10 highest latencies:
System rackdslot1.osadl.org (updated Thu Apr 09, 2026 00:45:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1095821420,6sleep11006599cyclictest20:20:161
215622790,5sleep30-21swapper/321:50:243
134491650,5ptp4l0-21swapper/020:50:250
134491630,4ptp4l31631-21iostat19:55:170
134491620,3ptp4l25-21ksoftirqd/119:09:331
134491600,4ptp4l0-21swapper/121:25:261
134491590,17ptp4l0-21swapper/019:05:260
134491580,4ptp4l0-21swapper/322:50:163
134491580,12ptp4l0-21swapper/222:00:232
134491570,5ptp4l0-21swapper/321:15:133
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional