tests/svgui/svgui@svgui/baseconfnode.xml
author |
Andrey Skvortsov <andrej.skvortzov@gmail.com> |
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Fri, 25 May 2018 18:34:05 +0300 |
changeset 2168 |
a66062a205ae |
parent 728 |
e0424e96e3fd
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permissions |
-rw-r--r-- |
Build by default with optimization level -O2 for GCC
before -O0 was used by default, that caused pretty bad performance.
Amd64, i6700k, 4200MHz, GNU/Linux (non-RT kernel), gcc 7.2.0
-------------------------------------
Optimization | EN/ENO |no EN/ENO |
-------------------------------------
default | 11 | 9.5 |
-O3 | 3.9 | 5.2 |
-O2 | 4 | 4.8 |
-Os | 4.1 | 3.5 |
-Ofast | 3.9 | 5.2 |
-------------------------------------
ARM, BBB Cortex-A8, 600Mhz, GNU/Linux, gcc 4.6.3
-------------------------------------
Optimization | EN/ENO |no EN/ENO |
-------------------------------------
default | 273 | 226 |
-O3 | 141.8 | 106.2 |
-O2 | 142 | 107 |
-Os | 152.5 | 112.2 |
-Ofast | 141.7 | 106.2 |
-------------------------------------
For embedded systems with size constaints (like Cortex-Mx, AVR and so
on) I usually use -Os. It gets pretty good results. For
GNU/Linux-based systems -O2 is usually a good choice, as you see the
test results.
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<?xml version="1.0" encoding="UTF-8"?>
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<BaseParams Name="svgui" IEC_Channel="0"/>
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