You are here: Home / Technical Services / OSADL QA Farm Real-time / 
2026-05-05 - 18:52

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 #7, slot #2

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 rack7slot2s.osadl.org (updated Sun Apr 26, 2026 00:48:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
3472239927687,121cyclictest0-21swapper/022:57:090
34722399274164,96cyclictest0-21swapper/022:26:090
34722399274164,96cyclictest0-21swapper/022:26:090
34722399273187,54cyclictest171rcu_preempt20:11:420
34722399268160,93cyclictest0-21swapper/023:31:080
34722399268160,93cyclictest0-21swapper/023:31:080
34722399268156,98cyclictest396787-21rm23:26:160
34722399268110,105cyclictest386496-21kworker/u9:4+xprtiod22:42:030
34722399268110,105cyclictest386496-21kworker/u9:4+xprtiod22:42:030
34722399267148,75cyclictest347222-21cyclictest19:15:560
34722399267138,91cyclictest0-21swapper/019:10:360
34722399267138,91cyclictest0-21swapper/019:10:360
34722399266161,68cyclictest171rcu_preempt19:27:010
34722399266161,68cyclictest171rcu_preempt19:27:010
34722399263148,100cyclictest376304-21gcc21:51:060
34722399263148,100cyclictest376304-21gcc21:51:060
34722399261165,53cyclictest171rcu_preempt19:20:430
34722399261165,53cyclictest171rcu_preempt19:20:430
3472239926094,125cyclictest401643-21munin-run23:50:010
34722399260172,54cyclictest171rcu_preempt00:30:070
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional