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perf(windows): delay load webgpu and some other dlls (#26917)

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Before: ~100ms, After: ~40ms for a hello world

Closes https://github.com/denoland/deno/issues/26914
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David Sherret 2024-11-18 15:44:17 -05:00 committed by GitHub
parent dd4570ed85
commit 19bbf83e47
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1 changed files with 18 additions and 0 deletions
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18
cli/build.rs
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@ -400,6 +400,24 @@ fn main() {
println!("cargo:rustc-env=TARGET={}", env::var("TARGET").unwrap());
println!("cargo:rustc-env=PROFILE={}", env::var("PROFILE").unwrap());
if cfg!(windows) {
// these dls load slowly, so delay loading them
let dlls = [
// webgpu
"d3dcompiler_47",
"OPENGL32",
// network related functions
"iphlpapi",
];
for dll in dlls {
println!("cargo:rustc-link-arg-bin=deno=/delayload:{dll}.dll");
println!("cargo:rustc-link-arg-bin=denort=/delayload:{dll}.dll");
}
// enable delay loading
println!("cargo:rustc-link-arg-bin=deno=delayimp.lib");
println!("cargo:rustc-link-arg-bin=denort=delayimp.lib");
}
let c = PathBuf::from(env::var_os("CARGO_MANIFEST_DIR").unwrap());
let o = PathBuf::from(env::var_os("OUT_DIR").unwrap());