You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-05-09 - 05:43
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 rackeslot5.osadl.org (updated Fri May 09, 2025 00:44:21)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2641999310,30cyclictest19912-21turbostat.cron20:05:023
2641599310,27cyclictest13711-21apt-get00:25:132
2641399310,30cyclictest8147-21cron00:15:001
2641399310,30cyclictest12922-21sh19:50:011
26409993028,1cyclictest27442-21sh21:30:000
2640999300,1cyclictest32136-21cron21:40:010
26419992927,1cyclictest609-21dbus-daemon23:40:013
2641999290,28cyclictest16030-21apt-get00:30:133
2641999290,28cyclictest10440-21apt-get23:10:133
26415992928,0cyclictest26741-21apt-get23:45:132
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional