You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-05-23 - 17:50

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 Thu May 23, 2024 00:46:49)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
34092062392372,13sleep120-21swapper/1219:07:114
34092662370350,13sleep150-21swapper/1519:08:027
34092542363343,13sleep30-21swapper/319:07:509
34091692362325,13sleep00-21swapper/019:06:430
34092052358341,10sleep110-21swapper/1119:07:093
34092832356336,13sleep90-21swapper/919:08:1215
34092422354334,13sleep100-21swapper/1019:07:412
34091702354333,14sleep10-21swapper/119:06:441
34093062353333,13sleep140-21swapper/1419:08:346
34092992353333,13sleep70-21swapper/719:08:2713
34092962351311,13sleep40-21swapper/419:08:2410
34092022351315,13sleep80-21swapper/819:07:0614
34092002351331,13sleep60-21swapper/619:07:0512
34093052349329,13sleep130-21swapper/1319:08:335
34093142348329,12sleep50-21swapper/519:08:4111
34071252344322,14sleep20-21swapper/219:05:248
3409736996967,2cyclictest3497551-21kworker/u32:0+flush-259:020:43:084
37355282590,0sleep00-21swapper/023:01:100
3409730995453,1cyclictest3539648-21kworker/u32:1+flush-259:021:00:192
3409736995047,2cyclictest3539648-21kworker/u32:1+flush-259:021:05:264
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional