You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-02-24 - 02:52

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 #c, slot #8

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 rackcslot8s.osadl.org (updated Fri Feb 23, 2024 12:46:12)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125391590,5ptp4l0-21swapper/107:05:491
125391590,5ptp4l0-21swapper/107:05:481
125391570,5ptp4l0-21swapper/507:08:555
125391570,5ptp4l0-21swapper/507:08:545
409725544,6sleep20-21swapper/207:08:052
409725544,6sleep20-21swapper/207:08:042
402225332,7sleep00-21swapper/007:07:070
402225332,7sleep00-21swapper/007:07:070
401925241,6sleep60-21swapper/607:07:056
401925241,6sleep60-21swapper/607:07:046
402525038,7sleep30-21swapper/307:07:103
402525038,7sleep30-21swapper/307:07:103
399324635,7sleep70-21swapper/707:06:427
399324635,7sleep70-21swapper/707:06:417
390524634,7sleep40-21swapper/407:05:354
390524634,7sleep40-21swapper/407:05:344
125391340,0ptp4l0-21swapper/110:55:231
125391320,0ptp4l0-21swapper/412:09:384
125391320,0ptp4l0-21swapper/408:50:204
125391310,1ptp4l1404-21/usr/sbin/munin09:15:324
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional