You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-13 - 08:39

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 #f, 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.

Total number of samples: 100 million
Resolution of latency scale: normal
Duration: 5 hours, 33 minutes
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackfslot4s.osadl.org (updated Mon Apr 13, 2026 00:44:35)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1851421310,4chrt18516-21runrttasks20:00:310
376421230,2chrt3765-21ls21:20:000
1118721200,3chrt11186-21sleep23:06:590
2193721190,2chrt21938-21chrt23:23:100
2022721190,2chrt20228-21runrttasks21:44:200
2918221160,2sleep029183-21basename19:25:390
1110121160,3chrt10386-21apt-get20:41:020
990021150,2sleep09901-21runrttasks21:28:420
746721150,3chrt7464-21python319:42:060
2855021150,2sleep028551-21cat21:56:140
90021140,2chrt901-21sh20:24:350
1497821140,2sleep014979-21runrttasks23:12:300
3270421130,2chrt32705-21seq22:02:240
2438121130,1sleep024397-21cat00:16:000
924321120,2chrt9244-21sh23:52:440
435421110,2chrt4353-21seq22:08:530
430521110,2chrt4295-21ssh00:34:470
2345421100,1sleep023455-21runrttasks21:49:020
3190321080,2chrt31904-21sleep22:50:150
1718021080,2chrt17182-21sleep19:05:430
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional