large size of .exe file

[hu76589]

After cargo build --release on Windows with only the counter example, the size of counter.exe is 8.4MB,why it is so big?What does it contains?

[dhardy]

Why don't you check for yourself with https://crates.io/crates/cargo-bloat ?

[SolarAA-11]

Maybe you can try to dynamic link.
https://stackoverflow.com/questions/29008127/why-are-rust-executables-so-huge

[dhardy]

Considering Rust does not have a stable ABI, dynamic linking isn't useful except (a) for faster local rebuilds and (b) deploying multiple applications alongside a shared library.

For now, the only thing to do really is to strip executables and put up with the size, or go use another library (some are better than others). Using a different backend (glow vs wgpu) may make a difference; reducing the number of compile features used may also help a little.

[yusdacra]

Another option is to compress the executable using something like https://github.com/upx/upx.