You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2025-11-03 - 11:50

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 Mon Nov 03, 2025 00:45:33)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
618991320,131cyclictest0-21swapper/720:00:237
600991310,130cyclictest0-21swapper/420:11:454
61899128125,2cyclictest0-21swapper/719:15:457
60099127124,2cyclictest0-21swapper/423:20:164
57399127125,1cyclictest3-21ksoftirqd/020:11:450
58399126125,0cyclictest21-21ksoftirqd/119:54:091
58399126122,4cyclictest21-21ksoftirqd/123:49:141
61899125124,1cyclictest0-21swapper/720:31:587
61899125123,1cyclictest0-21swapper/719:59:327
618991250,124cyclictest20231-21chk_conn_tcp22:32:307
618991250,124cyclictest0-21swapper/720:05:117
61899124122,1cyclictest0-21swapper/723:09:567
60899124122,1cyclictest24365-21chk_conn_tcp21:43:175
60899124122,1cyclictest0-21swapper/523:49:405
60899124121,2cyclictest0-21swapper/500:07:505
61899123121,1cyclictest32360-21chk_conn_tcp20:16:177
60899123122,1cyclictest0-21swapper/523:31:285
60899123122,1cyclictest0-21swapper/522:52:145
60899123122,1cyclictest0-21swapper/520:29:185
60099123122,1cyclictest0-21swapper/420:01:284
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional