You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-03-31 - 20:15

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
  TQ-Systems
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 50 highest latencies:
System rack3slot3s.osadl.org (updated Tue Mar 31, 2026 12:43:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
306121021340,4sleep0221rcuc/00
297999921290,2sleep00-21swapper/00
2780812212664,58sleep30-21swapper/33
278075528656,12sleep10-21swapper/11
278068028252,7sleep00-21swapper/00
278077128062,12sleep20-21swapper/22
31822722380,6sleep10-21swapper/11
30473882380,2sleep20-21swapper/22
278111499248,13cyclictest0-21swapper/33
2781114992422,1cyclictest0-21swapper/33
278111499237,13cyclictest0-21swapper/33
2781114992320,1cyclictest0-21swapper/33
2781114992320,1cyclictest0-21swapper/33
278111499229,11cyclictest0-21swapper/33
2781114992220,1cyclictest0-21swapper/33
2781114992220,1cyclictest0-21swapper/33
2781114992219,1cyclictest0-21swapper/33
2781114992219,1cyclictest0-21swapper/33
2781114992218,2cyclictest0-21swapper/33
2781114992218,2cyclictest0-21swapper/33
278111499216,12cyclictest0-21swapper/33
2781114992119,1cyclictest0-21swapper/33
2781114992119,1cyclictest0-21swapper/33
2781114992117,2cyclictest0-21swapper/33
2781114992116,2cyclictest0-21swapper/33
278111499211,3cyclictest0-21swapper/33
278111499211,2cyclictest0-21swapper/33
278111499211,16cyclictest2943744-21taskset3
31576032201,6sleep23157799-21cstates2
29005122201,11sleep12900588-21timerandwakeup1
278111499205,12cyclictest0-21swapper/33
2781114992018,1cyclictest0-21swapper/33
2781114992018,1cyclictest0-21swapper/33
2781114992017,1cyclictest0-21swapper/33
2781114992017,1cyclictest0-21swapper/33
2781114992017,1cyclictest0-21swapper/33
2781114992017,1cyclictest0-21swapper/33
2781114992016,2cyclictest0-21swapper/33
2781114992015,2cyclictest0-21swapper/33
2781114992015,2cyclictest0-21swapper/33
278111499201,16cyclictest2895544-21taskset3
278111499201,16cyclictest0-21swapper/33
278111499201,15cyclictest2911571-21taskset3
278111499201,15cyclictest2799537-21taskset3
278111499201,15cyclictest0-21swapper/33
31916232191,9sleep23191634-21ssh2
29999232191,3sleep03000035-21ssh0
278111499194,12cyclictest0-21swapper/33
2781114991917,1cyclictest0-21swapper/33
2781114991917,1cyclictest0-21swapper/33
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional