You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-08-06 - 10:27
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 rackbslot7.osadl.org (updated Thu Aug 06, 2026 00:44:27)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
67999913745,83cyclictest0-21swapper/021:16:060
6799991326,54cyclictest32631-21kworker/u19:2+ext4-rsv-conversion23:45:570
656321197,16sleep00-21swapper/018:54:280
67999911199,7cyclictest0-21swapper/021:56:440
68179910912,81cyclictest30066-21chrt22:15:483
68179910912,81cyclictest30066-21chrt22:15:483
6799991099,67cyclictest3981-21apt-get23:20:500
68129910276,18cyclictest21087-21latency_hist22:55:322
68129910173,19cyclictest31536-21apt-key20:10:332
68129910173,19cyclictest31536-21apt-key20:10:332
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional