compiling for windows

[flok]

Hi,

Until now I always compiled e.g. Dog using mingw to target windows.
I just noticed it produces a binary that is 13x slower than the linux program on the same laptop.
How do you people cross-compile while maintaining the original speed of your program?

[Ras]

I just noticed it produces a binary that is 13x slower than the linux program on the same laptop.

That doesn't sound normal.

How do you people cross-compile while maintaining the original speed of your program?

Under Linux, with the gcc-mingw-w64 package collection available in the normal distro repo. Just checked the native Linux compile vs. the Windows executable under Wine, and native is just 2% faster.

[mar]

factor 13 almost sounds like it's been built with optimizations disabled

[mar]

and turns out I was right: 2.6 definitely is a debug build with optimizations disabled - looking at the disassembly in IDA:
nothing is inlined, every local spilled on stack, asserts compiled in and all over the place

ergo obviously not mingw's fault

[flok]

and turns out I was right: 2.6 definitely is a debug build with optimizations disabled - looking at the disassembly in IDA:
nothing is inlined, every local spilled on stack, asserts compiled in and all over the place

ergo obviously not mingw's fault

Ah!
Sounds plausible indeed.