You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-19 - 01:48

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 #0, slot #1

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, lowest P state: performance
Compare latency of primary with shadow system
Characteristics of the 20 highest latencies:
System rack0slot1s.osadl.org (updated Wed Nov 19, 2025 00:45:31)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1049199133130,2cyclictest0-21swapper/721:51:547
1047299131128,2cyclictest0-21swapper/419:28:194
1046699131126,4cyclictest37-21ksoftirqd/320:53:503
1048499129127,1cyclictest0-21swapper/622:34:426
10484991290,1cyclictest0-21swapper/622:56:026
1045599129122,6cyclictest29-21ksoftirqd/221:23:152
10491991281,126cyclictest0-21swapper/719:16:187
1045599127123,3cyclictest29-21ksoftirqd/222:29:422
1044499127125,1cyclictest3-21ksoftirqd/022:31:330
1048499126125,1cyclictest0-21swapper/622:02:196
1048499126123,2cyclictest0-21swapper/619:18:556
10484991260,125cyclictest0-21swapper/623:01:196
1045599126121,4cyclictest29-21ksoftirqd/222:50:402
1045599126121,4cyclictest29-21ksoftirqd/222:22:132
1045099126124,1cyclictest21-21ksoftirqd/120:09:081
10472991250,1cyclictest1874-21chk_conn_tcp21:56:064
1046699125125,0cyclictest37-21ksoftirqd/322:44:273
1046699125121,4cyclictest37-21ksoftirqd/322:03:503
1048499124121,2cyclictest0-21swapper/619:55:036
1048499124121,2cyclictest0-21swapper/619:55:026
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional