You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-30 - 16:57
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
Characteristics of the 20 highest latencies:
System rackcslot4.osadl.org (updated Sun Nov 30, 2025 12:44:57)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
287332823370,9sleep00-21swapper/007:05:320
28737162251195,40sleep10-21swapper/107:09:191
125899740,4rtkit-daemon1257-21rtkit-daemon11:15:430
125899590,6rtkit-daemon1257-21rtkit-daemon09:29:270
125899550,4rtkit-daemon1257-21rtkit-daemon10:29:590
125899550,4rtkit-daemon1257-21rtkit-daemon10:29:590
125899550,4rtkit-daemon1257-21rtkit-daemon10:10:030
125899540,4rtkit-daemon1257-21rtkit-daemon07:35:040
287401399512,12cyclictest2971396-21apt-get10:15:071
125899510,4rtkit-daemon1257-21rtkit-daemon11:42:490
125899510,4rtkit-daemon1257-21rtkit-daemon09:53:050
287401399508,4cyclictest3039098-21apt-get11:45:131
287401399503,8cyclictest3009284-21apt-get11:05:121
287401399503,10cyclictest3070384-21apt-get12:30:131
125899500,4rtkit-daemon1257-21rtkit-daemon08:54:251
287401399492,7cyclictest2975767-21apt-get10:20:161
287401399492,6cyclictest2979344-21apt-get10:25:151
287401399492,6cyclictest2979344-21apt-get10:25:151
125899490,4rtkit-daemon1257-21rtkit-daemon07:49:031
125899490,4rtkit-daemon1257-21rtkit-daemon07:23:500
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional