You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-08-21 - 21:29
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 10 highest latencies:
System rackdslot2.osadl.org (updated Thu Aug 21, 2025 12:45:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
137391212178,22phc2sys0-21swapper/307:05:503
94992209175,22sleep20-21swapper/207:09:012
74402203170,21sleep10-21swapper/107:05:051
93232202169,22sleep00-21swapper/007:06:420
9870996614,13cyclictest0-21swapper/207:30:002
9870996313,23cyclictest24731-21mailstats11:00:262
987099630,19cyclictest4906-21irqstats08:05:212
987099621,19cyclictest23233-21date08:45:012
987099620,21cyclictest24501-21expr07:40:172
987099620,21cyclictest24501-21expr07:40:162
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional