You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-07-01 - 08:24

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 #b, slot #5

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
  Phytec
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.

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 rackbslot5s.osadl.org (updated Tue Jul 01, 2025 00:44:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4074612995736,18cyclictest4085594-21sendmail19:40:011
4074617995342,7cyclictest4169548-21grep23:40:252
4074620995037,9cyclictest391ktimers/319:20:193
4074612994718,25cyclictest0-21swapper/123:40:171
4074620994533,9cyclictest391ktimers/319:45:143
4074612994536,5cyclictest4141014-21munin-plugin-st22:20:011
4074607994540,3cyclictest0-21swapper/023:45:140
4074612994435,6cyclictest4093864-21unixbench_multi20:00:261
4074607994436,4cyclictest0-21swapper/021:20:010
4074612994318,21cyclictest0-21swapper/119:20:311
4074612994218,20cyclictest0-21swapper/123:00:261
4074612994214,5cyclictest0-21swapper/122:30:001
4074612994214,4cyclictest4175985-21fschecks_time00:00:161
4074612994213,5cyclictest0-21swapper/120:40:001
4074607994236,4cyclictest4181314-21munin-run00:20:010
4074620994130,8cyclictest391ktimers/323:10:133
4074620994128,9cyclictest391ktimers/322:40:153
4074620994126,11cyclictest391ktimers/323:05:173
4074620994126,11cyclictest391ktimers/323:05:163
4074617994133,5cyclictest4085114-21unixbench_multi19:35:322
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional