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This commit is contained in:
John Doty 2022-12-19 08:27:18 -08:00
parent 34d1830413
commit 9c435dc440
7500 changed files with 1665121 additions and 99 deletions
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182
vendor/rustix/benches/mod.rs vendored Normal file
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/// Benchmarks for rustix.
///
/// To enable these benchmarks, add `--cfg=criterion` to RUSTFLAGS and enable
/// the "fs", "time", and "process" cargo features.
#[cfg(any(
not(criterion),
not(feature = "fs"),
not(feature = "process"),
not(feature = "time"),
windows,
target_os = "emscripten",
target_os = "redox",
target_os = "wasi",
))]
fn main() {
unimplemented!()
}
#[cfg(not(any(
not(criterion),
not(feature = "fs"),
not(feature = "process"),
not(feature = "time"),
windows,
target_os = "emscripten",
target_os = "redox",
target_os = "wasi",
)))]
use criterion::{criterion_group, criterion_main};
#[cfg(not(any(
not(criterion),
not(feature = "fs"),
not(feature = "process"),
not(feature = "time"),
windows,
target_os = "emscripten",
target_os = "redox",
target_os = "wasi",
)))]
mod suite {
use criterion::Criterion;
pub(super) fn simple_statat(c: &mut Criterion) {
use rustix::fs::{cwd, statat, AtFlags};
c.bench_function("simple statat", |b| {
b.iter(|| {
statat(cwd(), "/", AtFlags::empty()).unwrap();
})
});
}
pub(super) fn simple_statat_libc(c: &mut Criterion) {
c.bench_function("simple statat libc", |b| {
b.iter(|| {
let mut s = std::mem::MaybeUninit::<libc::stat>::uninit();
unsafe {
assert_eq!(
libc::fstatat(
libc::AT_FDCWD,
std::ffi::CString::new("/").unwrap().as_c_str().as_ptr() as _,
s.as_mut_ptr(),
0
),
0
);
}
})
});
}
pub(super) fn simple_statat_libc_cstr(c: &mut Criterion) {
c.bench_function("simple statat libc cstr", |b| {
b.iter(|| {
let mut s = std::mem::MaybeUninit::<libc::stat>::uninit();
unsafe {
assert_eq!(
libc::fstatat(
libc::AT_FDCWD,
rustix::cstr!("/").as_ptr() as _,
s.as_mut_ptr(),
0
),
0
);
}
})
});
}
pub(super) fn simple_statat_cstr(c: &mut Criterion) {
use rustix::fs::{cwd, statat, AtFlags};
c.bench_function("simple statat cstr", |b| {
b.iter(|| {
statat(cwd(), rustix::cstr!("/"), AtFlags::empty()).unwrap();
})
});
}
#[cfg(not(target_os = "wasi"))]
pub(super) fn simple_clock_gettime(c: &mut Criterion) {
use rustix::time::{clock_gettime, ClockId};
c.bench_function("simple clock_gettime", |b| {
b.iter(|| {
let _ = clock_gettime(ClockId::Monotonic);
})
});
}
#[cfg(not(target_os = "wasi"))]
pub(super) fn simple_clock_gettime_libc(c: &mut Criterion) {
c.bench_function("simple clock_gettime libc", |b| {
b.iter(|| {
let mut s = std::mem::MaybeUninit::<libc::timespec>::uninit();
unsafe {
assert_eq!(
libc::clock_gettime(libc::CLOCK_MONOTONIC, s.as_mut_ptr()),
0
);
let _ = s.assume_init();
}
})
});
}
#[cfg(not(target_os = "wasi"))]
pub(super) fn simple_getpid(c: &mut Criterion) {
use rustix::process::getpid;
c.bench_function("simple getpid", |b| {
b.iter(|| {
let _ = getpid();
})
});
}
#[cfg(not(target_os = "wasi"))]
pub(super) fn simple_getpid_libc(c: &mut Criterion) {
c.bench_function("simple getpid libc", |b| {
b.iter(|| unsafe {
let _ = libc::getpid();
})
});
}
}
#[cfg(not(any(
not(criterion),
not(feature = "fs"),
not(feature = "process"),
not(feature = "time"),
windows,
target_os = "emscripten",
target_os = "redox",
target_os = "wasi",
)))]
criterion_group!(
benches,
suite::simple_statat,
suite::simple_statat_libc,
suite::simple_statat_libc_cstr,
suite::simple_statat_cstr,
suite::simple_clock_gettime,
suite::simple_clock_gettime_libc,
suite::simple_getpid,
suite::simple_getpid_libc
);
#[cfg(not(any(
not(criterion),
not(feature = "fs"),
not(feature = "process"),
not(feature = "time"),
windows,
target_os = "emscripten",
target_os = "redox",
target_os = "wasi",
)))]
criterion_main!(benches);