You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-04-21 - 23:31

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 #5

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
  Phytec
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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rackbslot5s.osadl.org (updated Tue Apr 21, 2026 12:44:46)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3802412995240,8cyclictest3828271-21grep08:20:240
3802425994739,5cyclictest3878428-21ls10:50:003
3802425994735,9cyclictest391ktimers/308:30:143
3802420994637,5cyclictest0-21swapper/209:10:002
3802412994534,7cyclictest0-21swapper/011:20:010
3802412994534,6cyclictest0-21swapper/011:25:260
3802425994437,4cyclictest3881819-21apt-get11:00:003
3802420994435,7cyclictest3874829-21kworker/u8:1+events_unbound10:44:582
3802420994331,9cyclictest311ktimers/208:10:112
3802412994337,4cyclictest3840677-21sh09:00:000
3802412994335,6cyclictest3877144-21fschecks_time10:45:160
3802417994229,9cyclictest3833888-21cat08:40:001
3802420994130,7cyclictest3893553-21grep11:30:242
3802420994130,7cyclictest3813172-21grep07:40:012
3802420994129,8cyclictest3865994-21grep10:10:242
3802420994117,12cyclictest0-21swapper/211:24:322
3802412994132,5cyclictest0-21swapper/012:20:000
3802412994132,5cyclictest0-21swapper/012:20:000
3802412994121,17cyclictest3854323-21sh09:40:000
3802420994027,4cyclictest131rcu_preempt12:19:292
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional