You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-14 - 09:58
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 rackeslot6.osadl.org (updated Thu May 14, 2026 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
176480899116109,5cyclictest1858704-21kworker/u8:3+events_unbound00:00:140
17648089910796,9cyclictest1771114-21apt-get19:30:040
17648119910595,4cyclictest1832849-21kworker/u8:0+events_unbound22:40:011
17648119910492,9cyclictest1820147-21latency_hist22:00:011
17648119910295,5cyclictest1776386-21kworker/u8:2+events_unbound19:45:031
17648089910090,7cyclictest1791236-21latency_hist20:30:020
1764808999679,7cyclictest1814817-21kworker/u8:3+events_unbound22:35:240
1764808999587,6cyclictest1774526-21kworker/u8:0+events_unbound19:40:020
1764811999481,5cyclictest1840812-21kworker/u8:0+events_unbound23:15:011
1764808999486,6cyclictest1763254-21kworker/u8:3+events_unbound19:15:010
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional