You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2023-09-21 - 23:35

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 #5

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 rackeslot5s.osadl.org (updated Thu Sep 21, 2023 12:44:22)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
20796993129,1cyclictest22-21ksoftirqd/109:30:001
2079699270,26cyclictest0-21swapper/109:22:141
20791992624,1cyclictest0-21swapper/010:26:060
20791992624,1cyclictest0-21swapper/009:55:470
2080199250,24cyclictest14173-21diskmemload11:18:363
20796992524,0cyclictest0-21swapper/109:17:561
20796992522,2cyclictest22-21ksoftirqd/111:10:011
2079699250,24cyclictest0-21swapper/112:10:191
20791992520,4cyclictest0-21swapper/011:00:000
20801992423,1cyclictest19035-21ssh09:46:323
20801992422,1cyclictest0-21swapper/311:29:263
20801992420,3cyclictest32452-21apt-get11:40:013
20801992420,3cyclictest11365-21apt09:05:003
2080199240,23cyclictest10892-21sh12:23:193
2080199240,23cyclictest0-21swapper/312:11:553
2080199240,23cyclictest0-21swapper/309:23:363
20798992422,1cyclictest21572-21apt-get12:35:002
20798992421,2cyclictest23181-21ssh10:56:412
2079899240,23cyclictest5470-21ssh09:33:332
2079899240,23cyclictest4902-21ssh10:38:592
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional