You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-23 - 12:56

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 #4, slot #1

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.

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 rack4slot1s.osadl.org (updated Thu Apr 23, 2026 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1358821330,3sleep10-21swapper/120:57:241
1358821330,3sleep10-21swapper/120:57:241
1358821330,3sleep10-21swapper/120:57:241
1708821210,2sleep00-21swapper/021:07:200
1880121190,3sleep018804-21gltestperf21:12:190
1880121190,3sleep018804-21gltestperf21:12:190
159132820,2sleep115986-21strings19:37:211
159132820,2sleep115986-21strings19:37:211
159132820,2sleep115986-21strings19:37:211
32912620,2chrt3290-21idleruntime21:57:181
32912620,2chrt3290-21idleruntime21:57:181
142782610,2sleep30-21swapper/323:52:253
142782610,2sleep30-21swapper/323:52:253
58202600,2sleep05823-21cron23:32:050
58202600,2sleep05823-21cron23:32:050
221492600,3chrt22152-21unixbench-2d00:12:280
221492600,3chrt22152-21unixbench-2d00:12:280
105072550,3sleep30-21swapper/323:42:243
105072550,3sleep30-21swapper/323:42:243
105072550,3sleep30-21swapper/323:42:243
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional