Expand description
Flush the cpu cache line by __builtin_clear_cache()
This crate can be used when you do benchmarks that are not dependent on the cpu cache.
Supports
- gcc and clang
- gnu and musl
- x86_64, aarch64, mips64el, powerpc64le … etc
- minimum support rustc 1.56.1 (59eed8a2a 2021-11-01)
Bugs
- armv7-unknown-linux-musleabihf: can not compile
- x86_64-pc-windows-msvc: can not compile
Examples
Easy to use:
let a = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
clf::cache_line_flush_with_slice(&a);
or
let a = vec![1, 2, 3, 4, 5, 6, 7, 8, 9];
let begin_ptr = a.as_ptr();
let end_ptr = unsafe { begin_ptr.add(a.len()) };
clf::cache_line_flush_with_ptr(begin_ptr, end_ptr);
References
Functions
flush the cpu cache line, this parameters are pointers.
flush the cpu cache line, this parameter is a slice.