You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2025-12-29 - 18:30

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 #c, slot #7

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 rackcslot7s.osadl.org (updated Mon Dec 29, 2025 12:44:52)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
125658922570,11sleep10-21swapper/107:05:061
197399950,8rtkit-daemon1972-21rtkit-daemon12:18:541
197399900,10rtkit-daemon4497-21PK-Backend08:54:331
197399800,66rtkit-daemon0-21swapper/307:07:593
125790927644,22sleep00-21swapper/007:07:560
13105512750,4sleep21310552-21cat09:35:302
13105512750,4sleep21310552-21cat09:35:302
197399720,4rtkit-daemon4497-21PK-Backend12:10:021
125789826748,13sleep20-21swapper/207:07:502
197399630,9rtkit-daemon1972-21rtkit-daemon12:15:130
1258239995916,18cyclictest1361187-21taskset11:58:043
1258239995716,15cyclictest1269072-21taskset07:39:403
1258239995716,15cyclictest1269072-21taskset07:39:403
197399560,9rtkit-daemon1972-21rtkit-daemon07:54:290
1258239995618,16cyclictest1279259-21taskset08:07:103
1258239995615,14cyclictest0-21swapper/312:03:003
197399550,8rtkit-daemon1972-21rtkit-daemon09:01:140
197399550,8rtkit-daemon1972-21rtkit-daemon08:21:160
197399550,8rtkit-daemon1972-21rtkit-daemon08:02:260
197399550,8rtkit-daemon1972-21rtkit-daemon08:02:250
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional