Samuka007/asterinas
1
0
Fork 0
mirror of https://github.com/asterinas/asterinas.git synced 2025-06-29 04:13:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

Avoid repetitive locking for clearing cache

Browse Source
This commit is contained in:
Zhang Junyang
2025-03-20 20:22:48 +08:00
committed by Tate, Hongliang Tian
parent e5be154ca8
commit 83b9ebf87d
2 changed files with 27 additions and 20 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
osdk/deps/frame-allocator/src/cache.rs
View File

@ -71,13 +71,17 @@ impl<const NR_CONT_FRAMES: usize, const COUNT: usize> CacheArray<NR_CONT_FRAMES,
/// deallocate to the global pool.
fn dealloc(&mut self, guard: &DisabledLocalIrqGuard, addr: Paddr) {
if self.push_front(addr).is_none() {
super::pools::dealloc(guard, addr, Self::segment_size());
let nr_to_dealloc = COUNT * 2 / 3;
let nr_to_dealloc = COUNT * 2 / 3 + 1;
for _ in 0..nr_to_dealloc {
let frame = self.pop_front().unwrap();
super::pools::dealloc(guard, frame, Self::segment_size());
}
let segments = (0..nr_to_dealloc).map(|i| {
if i == 0 {
(addr, Self::segment_size())
} else {
(self.pop_front().unwrap(), Self::segment_size())
}
});
super::pools::dealloc(guard, segments);
};
}
@ -134,7 +138,7 @@ pub(super) fn alloc(guard: &DisabledLocalIrqGuard, layout: Layout) -> Option<Pad
pub(super) fn dealloc(guard: &DisabledLocalIrqGuard, addr: Paddr, size: usize) {
let nr_frames = size / PAGE_SIZE;
if nr_frames > 4 {
super::pools::dealloc(guard, addr, size);
super::pools::dealloc(guard, [(addr, size)].into_iter());
return;
}
@ -146,6 +150,6 @@ pub(super) fn dealloc(guard: &DisabledLocalIrqGuard, addr: Paddr, size: usize) {
2 => cache.cache2.dealloc(guard, addr),
3 => cache.cache3.dealloc(guard, addr),
4 => cache.cache4.dealloc(guard, addr),
_ => super::pools::dealloc(guard, addr, size),
_ => super::pools::dealloc(guard, [(addr, size)].into_iter()),
}
}