You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-09-07 - 16:40

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 #0, 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
  
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 rack0slot5s.osadl.org (updated Sat Sep 07, 2024 00:47:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
37381402361319,14sleep50-21swapper/519:07:3411
37382272352310,14sleep30-21swapper/319:08:539
37381632350306,14sleep110-21swapper/1119:07:573
37382952347324,15sleep150-21swapper/1519:09:537
37381962347327,13sleep70-21swapper/719:08:2513
37380272347327,13sleep40-21swapper/419:05:5710
37380542345323,14sleep120-21swapper/1219:06:214
37381972344322,14sleep80-21swapper/819:08:2614
37381022342319,14sleep60-21swapper/619:07:0312
37354642342320,14sleep140-21swapper/1419:05:026
37382172341320,13sleep100-21swapper/1019:08:432
37354692339318,14sleep20-21swapper/219:05:078
37380552338318,13sleep130-21swapper/1319:06:225
37382442336314,14sleep10-21swapper/119:09:061
37381442334312,14sleep90-21swapper/919:07:3915
37382972333312,14sleep00-21swapper/019:09:550
373860999410,41cyclictest0-21swapper/421:31:3010
3738606993837,1cyclictest1579-21snmpd19:13:359
3738646993636,0cyclictest0-21swapper/1421:31:306
3738636993534,1cyclictest1579-21snmpd21:31:293
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional