You are here: Home / Projects / OSADL QA Farm Real-time / Latency plots / 
2022-07-06 - 09:05

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 #a, 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
  

ARM Samsung Exynos5 @1300/2000 MHz, Linux 4.14.141-169 (Profile)

Latency plot of shadow in rack #a, slot #3
Note that this system runs a non-RT kernel.
Data to construct the above plot have been generated using the RT test utility cyclictest.
Command line: cyclictest -l100000000 -m -Sp99 -i200 -h400 -q
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 10 highest latencies:
System rackaslot3s.osadl.org (updated Sat Mar 04, 2017 12:43:55)
Delayed (victim)Switcher (culprit)TimestampCPU
PIDPrioTotal
latency
(µs)
T*(,W**)
latency
(µs)
CmdPIDPrioCmd
1882399891416,8876cyclictest13627-21diskmemload09:46:250
1882399862820,8560cyclictest13627-21diskmemload09:30:540
1882399862018,8577cyclictest13627-21diskmemload09:41:590
1882699851219,8470cyclictest13627-21diskmemload12:29:091
1882399850816,8440cyclictest13627-21diskmemload11:55:280
1882399849118,8451cyclictest13627-21diskmemload12:21:540
1882799847115,8422cyclictest13627-21diskmemload09:16:332
1882399847121,8427cyclictest13627-21diskmemload12:29:210
1882399844416,8410cyclictest13627-21diskmemload11:09:130
1882399843212,8388cyclictest13627-21diskmemload12:01:390
*Timer  **Wakeup  (latency=timer+wakeup+contextswitch)

 

Valid XHTML 1.0 Transitional