You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-02-19 - 00:33

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 #1, slot #6

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
  Intel
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
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack1slot6s.osadl.org (updated Tue Feb 18, 2025 12:43:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
166992644,12sleep00-21swapper/010:10:420
36022634,12sleep00-21swapper/011:05:070
184702593,12sleep00-21swapper/010:15:290
10502593,12sleep30-21swapper/307:00:173
310082582,18sleep20-21swapper/206:54:482
7200995727,14cyclictest0-21swapper/011:30:210
7200995727,14cyclictest0-21swapper/011:30:210
227799570,4rtkit-daemon2276-21rtkit-daemon08:55:332
721199564,44cyclictest0-21swapper/307:00:293
7205995619,30cyclictest29339-21unixbench-2d07:55:451
7205995526,13cyclictest0-21swapper/109:45:181
720099554,31cyclictest0-21swapper/009:30:100
7200995537,11cyclictest23287-21grep10:30:220
71592553,43sleep30-21swapper/309:50:093
227799550,5rtkit-daemon2276-21rtkit-daemon11:18:122
227799550,5rtkit-daemon2276-21rtkit-daemon10:18:152
721199545,41cyclictest1632-21nscd07:20:153
721199543,42cyclictest0-21swapper/310:30:213
720099545,26cyclictest0-21swapper/007:10:270
249262544,43sleep00-21swapper/007:48:460
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional