You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2024-07-27 - 06:53

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 #b, 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 rackbslot8s (updated Sat Jul 27, 2024 00:44:15)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
4840522130102,9sleep10-21swapper/119:05:401
4842632129115,10sleep70-21swapper/719:08:437
4842442126112,9sleep00-21swapper/019:08:270
482237212696,10sleep50-21swapper/519:05:045
4840892123109,9sleep20-21swapper/219:06:132
4840822122109,8sleep40-21swapper/419:06:074
4842622117103,9sleep60-21swapper/619:08:426
4840452116102,9sleep30-21swapper/319:05:343
4845549910299,3cyclictest573-21snmpd23:32:075
4845549910299,3cyclictest573-21snmpd20:27:325
4845549910299,3cyclictest573-21snmpd19:47:495
4845549910299,3cyclictest573-21snmpd00:35:025
4845479910299,3cyclictest573-21snmpd20:15:303
4845479910299,3cyclictest573-21snmpd00:07:103
4845389910299,3cyclictest573-21snmpd21:52:301
484538991020,99cyclictest0-21swapper/120:44:481
484538991020,102cyclictest0-21swapper/122:50:591
4845589910199,2cyclictest573-21snmpd22:16:166
484558991010,100cyclictest0-21swapper/620:10:146
4845549910199,2cyclictest573-21snmpd23:42:345
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional