You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-09-19 - 01:37

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 #e, slot #3

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 rackeslot3s.osadl.org (updated Thu Sep 18, 2025 12:45:07)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
415256199106102,2cyclictest0-21swapper/011:30:010
4152561991011,96cyclictest0-21swapper/011:20:020
4152561991011,96cyclictest0-21swapper/011:20:020
4152561999288,2cyclictest0-21swapper/010:15:030
415256199896,2cyclictest0-21swapper/007:10:020
4152561997767,3cyclictest0-21swapper/010:10:020
4152561997470,2cyclictest0-21swapper/009:30:020
4152561996965,2cyclictest0-21swapper/011:20:020
4152573996712,10cyclictest30-21ksoftirqd/212:40:002
4152578996525,23cyclictest37-21ksoftirqd/309:15:013
415256199642,43cyclictest382-21ntpd10:45:030
4152573996215,10cyclictest30-21ksoftirqd/212:25:002
4152573996126,12cyclictest30-21ksoftirqd/210:30:012
4152573996114,10cyclictest30-21ksoftirqd/212:08:052
4152573996111,11cyclictest30-21ksoftirqd/208:25:022
415257899607,41cyclictest4159759-21kworker/u8:109:40:023
415257899602,15cyclictest37-21ksoftirqd/312:05:013
4152578996012,15cyclictest37-21ksoftirqd/310:00:013
415257899595,6cyclictest37-21ksoftirqd/310:25:013
415257399596,11cyclictest30-21ksoftirqd/211:25:032
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional