You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-17 - 04:18
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 rack0slot0.osadl.org (updated Wed Sep 17, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
143492960,3sleep62664399cyclictest21:19:136
80112880,0sleep10-21swapper/119:35:241
257922860,0sleep40-21swapper/423:22:054
21142840,1sleep12113-21sshd22:40:091
274722820,0sleep30-21swapper/322:36:033
274722820,0sleep30-21swapper/322:36:033
213042810,0sleep00-21swapper/023:54:150
327022790,0sleep50-21swapper/523:32:315
44002770,0sleep70-21swapper/700:15:227
286562760,0sleep10-21swapper/121:30:221
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional