You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-12-03 - 09:25
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 rack1slot8.osadl.org (updated Wed Dec 03, 2025 00:43:56)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
2374199897813,72cyclictest0-21swapper/019:10:260
220492860835,17sleep00-21swapper/019:05:030
2374299820729,75cyclictest24939-21sed19:10:261
2374199357314,31cyclictest0-21swapper/021:11:150
2168991320,31rtkit-daemon26278-21sh00:36:230
2168991310,33rtkit-daemon868-21runrttasks23:54:010
237429911710,77cyclictest0-21swapper/120:22:591
2168991130,4rtkit-daemon2167-21rtkit-daemon19:27:271
2168991090,4rtkit-daemon2167-21rtkit-daemon22:57:101
2168991070,4rtkit-daemon2167-21rtkit-daemon20:38:281
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional