Hi,
I have checked once again. My previous snapshot from make output was
without optimization indeed (different configuration)
Right one looks like that:
/home/adam/Temp/emsdk/upstream/emscripten/em++ -DOCC_CONVERT_SIGNALS
@CMakeFiles/cadModelConverter.dir/includes_CXX.rsp -s WASM=1 -s
ALLOW_MEMORY_GROWTH=1 -DNDEBUG -O2 -std=gnu++11 -o
CMakeFiles/cadModelConverter.dir/fileconverter.cpp.o -c
/home/adam/projects/EmscriptenProjects/CadModelConverter/fileconverter.cpp
/home/adam/Temp/emsdk/upstream/emscripten/em++ -DOCC_CONVERT_SIGNALS
@CMakeFiles/cadModelConverter.dir/includes_CXX.rsp -s WASM=1 -s
ALLOW_MEMORY_GROWTH=1 -DNDEBUG -O2 -std=gnu++11 -o
CMakeFiles/cadModelConverter.dir/main.cpp.o -c
/home/adam/projects/EmscriptenProjects/CadModelConverter/main.cpp
/home/adam/Temp/emsdk/upstream/emscripten/em++ -DOCC_CONVERT_SIGNALS
@CMakeFiles/cadModelConverter.dir/includes_CXX.rsp -s WASM=1 -s
ALLOW_MEMORY_GROWTH=1 -DNDEBUG -O2 -std=gnu++11 -o
CMakeFiles/cadModelConverter.dir/myvrmlapi_writer.cpp.o -c
/home/adam/projects/EmscriptenProjects/CadModelConverter/myvrmlapi_writer.cpp
/home/adam/Temp/emsdk/upstream/emscripten/em++ -s WASM=1 -s
ALLOW_MEMORY_GROWTH=1 -DNDEBUG -O2 -O2 --bind -s FORCE_FILESYSTEM=1
@CMakeFiles/cadModelConverter.dir/objects1.rsp -o cadModelConverter.js
@CMakeFiles/cadModelConverter.dir/linklibs.rsp
Performance is more or less the same.
Regards
Adam
W dniu 26.01.2021 o 22:28, 'Thomas Lively' via emscripten-discuss pisze:
Do you see those optimization flags being used in the verbose make
output? For example, in the output in your original message, you have
/home/adam/Temp/emsdk/upstream/emscripten/em++
-I/home/adam/projects/EmscriptenProjects/CadModelConverter
-I/home/adam/Temp/instal/OCCT_emsdk/include/opencascade -s WASM=1
-s ALLOW_MEMORY_GROWTH=1 -v -std=gnu++11 -o
CMakeFiles/cadModelConverter.dir/fileconverter.cpp.o -c
/home/adam/projects/EmscriptenProjects/CadModelConverter/fileconverter.cpp
Clearly some flags like " -s WASM=1 -s ALLOW_MEMORY_GROWTH=1" are
being used, but I would have expected to see optimization flags here
as well.
On Tue, Jan 26, 2021 at 1:22 PM Adam Wnęk <[email protected]
<mailto:[email protected]>> wrote:
Hi Thomas,
I'm using -O3 right now. There was no substantial difference
between this and -O2
Adam
W dniu 26.01.2021 o 18:56, 'Thomas Lively' via emscripten-discuss
pisze:
Hi Adam,
I don't see any optimization flags used in your Make output. Does
compiling with `-O2` or `-O3` make a difference?
Thomas
On Tue, Jan 26, 2021 at 8:17 AM Adam Wnęk <[email protected]
<mailto:[email protected]>> wrote:
Hi
I have small application converting files from IGES to VRML
format. Im using OPENCASCADE librariesto do so. After
compilation in emscripten application works but it is much
slower than the same code complied using "normal" compilation.
Processing one file takes several seconds then while doing
the same in browser using wasm module takes several minutes.
In wasm module source file is saved in FS system than loaded
and processed. output data is send back to JS by
value::typed_memory_view. OPENCASCADE (static) libraries are
compiled with emscripten too.
What may be the cause of such huge performance drop? Im stuck
there a bit.
Build platform :Ubuntu
This is my make output:
------------------------------------------------------------------------------------------------------------
/home/adam/projects/EmscriptenProjects/CadModelConverter/build>
make -j4 VERBOSE=1
/usr/bin/cmake
-S/home/adam/projects/EmscriptenProjects/CadModelConverter
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--check-build-system CMakeFiles/Makefile.cmake 0
Re-run cmake file: Makefile older than: ../CMakeLists.txt
-- Using OpenCASCADE from
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-- Configuring done
-- Generating done
-- Build files have been written to:
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/usr/bin/cmake -E cmake_progress_start
/home/adam/projects/EmscriptenProjects/CadModelConverter/build/CMakeFiles
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cd
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/home/adam/projects/EmscriptenProjects/CadModelConverter
/home/adam/projects/EmscriptenProjects/CadModelConverter
/home/adam/projects/EmscriptenProjects/CadModelConverter/build
/home/adam/projects/EmscriptenProjects/CadModelConverter/build
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Scanning dependencies of target cadModelConverter
make[2]: Leaving directory
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/usr/bin/make -f CMakeFiles/cadModelConverter.dir/build.make
CMakeFiles/cadModelConverter.dir/build
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CMakeFiles/cadModelConverter.dir/fileconverter.cpp.o
/home/adam/Temp/emsdk/upstream/emscripten/em++
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ignoring nonexistent directory
"/home/adam/Temp/emsdk/upstream/emscripten/system/include/wasm32-emscripten"
#include "..." search starts here:
#include <...> search starts here:
/home/adam/projects/EmscriptenProjects/CadModelConverter
/home/adam/Temp/instal/OCCT_emsdk/include/opencascade
/home/adam/Temp/emsdk/upstream/emscripten/system/include/SDL
/home/adam/Temp/emsdk/upstream/emscripten/cache/wasm/include
/home/adam/Temp/emsdk/upstream/emscripten/system/include/libcxx
/home/adam/Temp/emsdk/upstream/emscripten/system/lib/libcxxabi/include
/home/adam/Temp/emsdk/upstream/emscripten/system/include/compat
/home/adam/Temp/emsdk/upstream/emscripten/system/include/libc
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[ 80%] Linking CXX executable cadModelConverter
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/home/adam/Temp/instal/OCCT_emsdk/lib/libTKMath.a
/home/adam/Temp/instal/OCCT_emsdk/lib/libTKernel.a
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-mllvm -combiner-global-alias-analysis=false -mllvm
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/home/adam/Temp/emsdk/upstream/emscripten/src/compiler.js
/tmp/tmpc39q3j3t.txt
make[2]: Leaving directory
'/home/adam/projects/EmscriptenProjects/CadModelConverter/build'
[100%] Built target cadModelConverter
make[1]: Leaving directory
'/home/adam/projects/EmscriptenProjects/CadModelConverter/build'
/usr/bin/cmake -E cmake_progress_start
/home/adam/projects/EmscriptenProjects/CadModelConverter/build/CMakeFiles
0
*** Finished ***
---------------------------------------------------------------------------------------
Thanks in advance for any suggestions.
Regards
Adam Wnek
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