You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-10-03 - 21:46

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 #5, 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 
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.
Unexpectedly long latencies may be caused by SMIs
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 rack5slot3s.osadl.org (updated Tue Oct 03, 2023 12:44:32)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
188042238162,24sleep10-21swapper/107:07:041
189012234159,24sleep30-21swapper/307:08:183
188682203165,26sleep00-21swapper/007:07:510
187632203169,23sleep20-21swapper/207:06:322
19143998885,2cyclictest0-21swapper/210:01:462
19143997571,3cyclictest0-21swapper/210:05:462
189242680,3sleep3401ktimersoftd/310:45:353
19143995551,3cyclictest0-21swapper/209:06:262
276792450,1sleep339-21rcuc/311:05:343
19143993430,3cyclictest0-21swapper/209:51:092
19143993330,2cyclictest0-21swapper/208:24:422
1913199311,14cyclictest7205-21munin-run07:55:020
259482290,4sleep07-21ksoftirqd/012:15:330
1914399291,20cyclictest86650irq/127-enp1s0-10:18:092
1913899293,3cyclictest86850irq/129-enp1s0-11:20:241
1913899290,27cyclictest0-21swapper/110:12:221
1913899286,4cyclictest16616-21perf09:30:001
1913899281,3cyclictest22000-21cut10:55:161
1913899281,25cyclictest0-21swapper/109:55:571
1913199289,16cyclictest30428-21munin-run11:15:020
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional