You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-15 - 18:46

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 #6

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 rack0slot6s.osadl.org (updated Wed Apr 15, 2026 00:46:04)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
12702092253246,4sleep100-21swapper/1019:07:542
12701952250243,4sleep180-21swapper/1819:07:4210
12700462250231,12sleep110-21swapper/1119:05:553
12670052245208,12sleep30-21swapper/319:05:0713
12702312240233,4sleep80-21swapper/819:08:1218
12703202239219,12sleep90-21swapper/919:09:1419
12702252237217,12sleep50-21swapper/519:08:0915
12702182237230,4sleep190-21swapper/1919:08:0311
12701692236217,12sleep170-21swapper/1719:07:219
12702052234227,4sleep60-21swapper/619:07:5016
12700812232212,12sleep120-21swapper/1219:06:164
12703782231212,12sleep10-21swapper/119:09:461
12703362230212,11sleep20-21swapper/219:09:2712
12702812230211,12sleep40-21swapper/419:08:4914
12702842227207,12sleep70-21swapper/719:08:5217
12701932227207,12sleep160-21swapper/1619:07:408
12700322225205,13sleep00-21swapper/019:05:440
12703252222203,12sleep130-21swapper/1319:09:185
12701912221202,12sleep140-21swapper/1419:07:386
12701062221203,11sleep150-21swapper/1519:06:397
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional