Optimized `std.mem.eql` with SIMD (#18389)

* optimized memeql
* add `sched_setaffinity` to `std.os.linux`

Co-authored-by: Protty <45520026+kprotty@users.noreply.github.com>
Co-authored-by: Ryan Liptak <squeek502@hotmail.com>
2f8e4347b1David Rubin committed on 1/9/2024, 7:50:22 AM· committed by GitHubparent8c9efc9
2 files changedLine totals unavailable