I finally found out why my build is slower. I build the wasm on a windows subsystem for linux, it was slower. The when I build the same on a mac machine it is faster.
Is this expected behaviour? steps to build - 1. clone the code from https://github.com/ankh-g/libvpx/tree/wartc (branch 'wartc') 2. sh wasm.sh On Sunday, May 31, 2020 at 10:12:41 PM UTC+5:30, Alon Zakai wrote: > > For LTO you also need to pass -flto during the compile step (and during > link, and you don't need `--llvm-lto 3` any more, which was for the old > backend). > > If that's not it, I'd suggest comparing profiles between the builds to > find what is actually slower in your build. > > On Sat, May 30, 2020 at 10:04 AM MEENA N SUBBIAH <[email protected] > <javascript:>> wrote: > >> I am trying to compile the libvpx module to wasm. >> But I am facing huge performance issues. >> >> The wasm I build takes an average encode time of 1300+ milliseconds. >> But I found another livpx.wasm >> https://github.com/webrtc/apprtc/tree/wartc/src/web_app/wasm/libvpx >> which takes average encode time of 250+ milliseconds. >> Can anyone help me, Where am I going wrong. >> >> here are the compilation setting I use, >> >> to build *libvpx,* >> >> >> *emconfigure ../node_modules/libvpx/configure --enable-postproc >> --enable-multi-res-encoding --enable-temporal-denoising --enable-libyuv >> --size-limit=16384x16384 --enable-multithread --enable-realtime-only >> --disable-install-docs --disable-unit-tests --disable-vp9-decoder >> --disable-vp9-encoder --target=generic-gnu --extra-cxxflags="-O3 -s WASM=1 >> -DWASM -I`dirname \`which emcc\``/system/lib/libcxxabi/include"* >> *emmake make* >> >> to build *libyuv,* >> >> >> *emcmake cmake -DCMAKE_BUILD_TYPE=Release ../node_modules/libyuvemmake >> make* >> >> *Final compilation,* >> >> >> *emcc -O3 -DWASM --bind -s STRICT=1 -s ALLOW_MEMORY_GROWTH=1 -s >> ASSERTIONS=0 -s NO_EXIT_RUNTIME=1 -s MALLOC=emmalloc -s MODULARIZE=1 -s >> FILESYSTEM=0 -s EXPORT_ES6=1 --std=c++11 -o ./my-module.js -x c++ -I >> ./node_modules/libvpx -I ./node_modules/libyuv/include -I build-vpx >> src/zcon_ss.cpp src/Utility/ZvpxCodecInst.cpp src/Utility/zvpx_encoder.cpp >> src/Utility/zvpx_decoder.cpp build-vpx/libvpx.a build-yuv/libyuv.a >> --no-entry --closure 0 --llvm-lto 3 -g0* >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "emscripten-discuss" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/emscripten-discuss/e47d2054-9a4a-4cc5-86f9-bf0072f55258%40googlegroups.com >> >> <https://groups.google.com/d/msgid/emscripten-discuss/e47d2054-9a4a-4cc5-86f9-bf0072f55258%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "emscripten-discuss" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/emscripten-discuss/c177907a-af0b-43b2-ae31-1f53db84cca5o%40googlegroups.com.
