You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-17 - 04:46
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 rack3slot6.osadl.org (updated Mon Nov 17, 2025 00:45:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
286729911586,15cyclictest14-21ksoftirqd/021:40:150
286729911283,19cyclictest14-21ksoftirqd/021:20:160
28062210321,33sleep10-21swapper/119:05:561
286789910145,33cyclictest26-21ksoftirqd/121:05:141
286789910145,33cyclictest26-21ksoftirqd/121:05:131
2867899949,61cyclictest0-21swapper/123:10:161
28678999417,59cyclictest0-21swapper/119:40:171
28672999359,20cyclictest14-21ksoftirqd/020:15:150
28678999211,23cyclictest0-21swapper/122:20:151
28678999210,62cyclictest0-21swapper/100:00:251
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional