You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-10-19 - 04:50
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 rack3slot3.osadl.org (updated Sun Oct 19, 2025 00:46:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
122501090irq/42-ahci0-21swapper/219:08:164
32186210894sleep90-21swapper/919:07:1311
32149210894sleep30-21swapper/319:06:445
32094210794sleep100-21swapper/1019:06:022
32236210493sleep10-21swapper/119:07:541
32233210490sleep110-21swapper/1119:07:523
32169210492sleep60-21swapper/619:06:598
3066450880irq/53-eth0-tx-0-21swapper/419:08:256
3066350870irq/52-eth0-rx-0-21swapper/519:05:217
3238627977sleep80-21swapper/819:09:1410
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional