You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-03-12 - 05:25

OSADL QA Farm on Real-time of Mainline Linux

About - Hardware - CPUs - Benchmarks - Graphics - Benchmarks - Kernels - Boards/Distros - Latency monitoring - Latency plots - System data - Profiles - Compare - Awards

Default latency plot of shadow in rack #3, slot #3

Rack #0/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #1/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #2/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #3/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #4/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #5/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #6/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #7/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #8/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #9/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #a/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #b/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #c/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #d/#0 #1 #2 #3 #4 #5 #6 #7 #8 -
Rack #e/#0 #1 #2 #3 #4 #5 #6 #7 #8 - Rack #f/#0 #1 #2 #3 #4 #5 #6 #7 #8 
Special  All - All RT - Optimization - Ethernet - Thumbnails - Next
  
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 20 highest latencies:
System rack3slot3s.osadl.org (updated Mon Mar 10, 2025 12:43:53)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4149039993732,3cyclictest4160809-40gst-plugin-scan07:39:142
4149039993732,3cyclictest4160809-40gst-plugin-scan07:39:142
4149037993626,4cyclictest4193463-21dump-pmu-power09:05:011
4149039993121,7cyclictest99554-21grep11:20:232
4149043993025,3cyclictest4160802-40gmain07:39:143
4149043993025,3cyclictest4160802-40gmain07:39:133
4149037993019,7cyclictest1-21systemd10:44:591
4149039992925,2cyclictest0-21swapper/212:15:012
4149037992925,3cyclictest105619-21cron11:29:591
4149043992824,2cyclictest0-21swapper/309:25:003
4149043992819,6cyclictest16121-21sh09:30:003
4149037992823,3cyclictest4160772-40tracker-extract07:39:131
4149037992823,3cyclictest4160772-40tracker-extract07:39:121
4149034992824,2cyclictest97597-21sendmail11:20:000
414903999276,17cyclictest75522-21grep10:50:192
414903499278,6cyclictest4186277-21uname08:45:180
4149034992622,2cyclictest0-21swapper/012:10:010
4149034992621,3cyclictest106972-21mailstats11:30:190
414903499255,17cyclictest42733-21sh10:06:260
4149034992521,3cyclictest4160772-40tracker-extract07:39:130
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional