You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-11-23 - 17:38

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 #4

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 rack0slot4s.osadl.org (updated Sat Nov 23, 2024 00:46:50)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
39138902433409,15sleep130-21swapper/1319:09:505
39135602363355,4sleep110-21swapper/1119:05:303
39137142358323,26sleep10-21swapper/119:07:301
39137182352328,15sleep50-21swapper/519:07:3311
39137652351326,16sleep60-21swapper/619:08:0712
39136342351326,15sleep00-21swapper/019:06:230
39138722348325,14sleep120-21swapper/1219:09:334
39138052347324,14sleep40-21swapper/419:08:3610
39137152346322,14sleep20-21swapper/219:07:308
39136192346322,14sleep80-21swapper/819:06:1514
39137202344320,15sleep70-21swapper/719:07:3613
39137622343320,14sleep30-21swapper/319:08:039
39137392342319,14sleep90-21swapper/919:07:5315
39137232342319,14sleep100-21swapper/1019:07:392
39137112342319,14sleep150-21swapper/1519:07:287
39137272341318,14sleep140-21swapper/1419:07:426
3914341996150,3cyclictest0-21swapper/1522:23:217
3914341996150,3cyclictest0-21swapper/1522:23:207
3914319994038,1cyclictest0-21swapper/820:20:1814
3914319993939,0cyclictest0-21swapper/823:15:2914
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional