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feat: measure buffering

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javalsai
2025-12-02 21:35:02 +01:00
parent 23c52cab0e
commit fbf76caa20
4 changed files with 33 additions and 17 deletions
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34
2025/tester.rs
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@@ -31,11 +31,7 @@ pub mod dl {
/// To get the error call [`ffi::error()`].
pub fn try_drop(self) -> Result<(), (Self, i32)> {
let err = unsafe { ffi::close(self.0) };
if err == 0 {
Ok(())
} else {
Err((self, err))
}
if err == 0 { Ok(()) } else { Err((self, err)) }
}
/// # Safety
@@ -180,8 +176,14 @@ pub mod loader {
// drop.
untry!(unsafe { handle.symfn::<C<isize>>(c"challenge_isize") }.map(V::Isize));
untry!(unsafe { handle.symfn::<C<usize>>(c"challenge_usize") }.map(V::Usize));
untry!(unsafe { handle.symfn::<C<(usize, usize)>>(c"challenge_isize_duple") }.map(V::UsizeDuple));
untry!(unsafe { handle.symfn::<C<(isize, isize)>>(c"challenge_usize_duple") }.map(V::IsizeDuple));
untry!(
unsafe { handle.symfn::<C<(usize, usize)>>(c"challenge_isize_duple") }
.map(V::UsizeDuple)
);
untry!(
unsafe { handle.symfn::<C<(isize, isize)>>(c"challenge_usize_duple") }
.map(V::IsizeDuple)
);
None
}
@@ -202,6 +204,16 @@ pub mod performer {
}
}
macro_rules! info {
($fmt:literal) => {
println!(concat!("\x1b[34m inf: ", $fmt, "\x1b[0m"));
};
($fmt:literal, $($arg:tt)*) => {
println!(concat!("\x1b[34m inf: ", $fmt, "\x1b[0m"), $($arg)*);
};
}
pub type ChallengeFn = unsafe extern "Rust" fn(&[u8]) -> isize;
fn main() -> io::Result<()> {
@@ -213,8 +225,9 @@ fn main() -> io::Result<()> {
};
let (noop_overhead_cold, noop_overhead_hot) = measure_noop_overhead();
println!(
"\x1b[34minf: noop fn takes {noop_overhead_hot:#?} hot and {noop_overhead_cold:#?} cold\x1b[0m",
info!(
"noop fn takes {:#?} hot and {:#?} cold",
noop_overhead_hot, noop_overhead_cold
);
let rs_path = PathBuf::from(&day);
@@ -310,8 +323,11 @@ fn buffer_input(input_path: &str) -> io::Result<Vec<u8>> {
io::stdin().read_to_end(&mut input)?;
Ok(input)
} else {
let t = Instant::now();
let mut f = File::open(input_path)?;
f.read_to_end(&mut input)?;
info!("\x1b[34mbuffering input {:#?}\x1b[0m", t.elapsed());
Ok(input)
}
}