You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-17 - 14:07
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 20 highest latencies:
System rackeslot5.osadl.org (updated Wed Sep 17, 2025 00:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2669399310,30cyclictest5985-21cron00:15:011
2669899300,2cyclictest19070-21cron22:25:002
2669899300,29cyclictest1211-21cron19:25:012
2669899300,1cyclictest26671-21apt-get22:40:122
26689993028,1cyclictest609-21dbus-daemon22:40:010
2670299290,28cyclictest303-21systemd-journal21:20:013
2670299290,28cyclictest15536-21cron21:05:003
2670299290,28cyclictest0-21swapper/319:10:143
2670299290,1cyclictest10894-21apt-get19:45:123
26698992928,1cyclictest6280-21apt-get00:15:142
2669399290,1cyclictest13197-21sendmail-msp21:00:001
2668999290,28cyclictest0-21swapper/022:20:120
2668999290,28cyclictest0-21swapper/020:30:110
26702992827,1cyclictest1475-21cron20:35:013
2670299280,28cyclictest29838-21perf21:35:003
2670299280,0cyclictest21993-21apt-get22:30:123
26698992828,0cyclictest0-21swapper/220:15:162
26698992827,1cyclictest16116-21apt-get21:05:122
26698992827,1cyclictest16116-21apt-get21:05:122
2669899280,0cyclictest0-21swapper/223:45:102
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional