Hi, Turns out that our build script for windows-nsis/generic doesn't specify any optimization flags.
I added -O2 and got 400Mbit/s with mingw, which is better than 340 but worse than VS's 425. Haven't yet checked which flags are used for openssl build. Also adding "-O2" to CFLAGS breaks rc build: libtool: compile: i686-w64-mingw32-windres -DHAVE_CONFIG_H -I. -I../.. -I../../include -I../../include -I../../src/compat -DWIN32_LEAN_AND_MEAN -DNTDDI_VERSION=NTDDI_VISTA -D_WIN32_WINNT=_WIN32_WINNT_VISTA -O2 -i openvpnmsica_resources.rc -o .libs/openvpnmsica_resources.o i686-w64-mingw32-windres: unknown format type `2' i686-w64-mingw32-windres: supported formats: rc res coff Makefile:827: recipe for target 'openvpnmsica_resources.lo' failed This happens because windres treats "-O" as own option, so I removed .rc files from Makefile(s).am for testing. I'll play with optimizations flags and find a proper solution for rc build. I think this has to be fixed also in the next 2.4 release. -- -Lev
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