LeapOracle

graft_kernel::oracle

Struct LeapOracle 

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pub struct LeapOracle { /* private fields */ }
Expand description

LeapOracle is an implementation of the algorithm described by the paper “Effectively Prefetching Remote Memory with Leap”. It provides an Oracle that attempts to predict future page requests based on trends found in recent history.

Hasan Al Maruf and Mosharaf Chowdhury. (2020). Effectively Prefetching Remote Memory with Leap. In Proceedings of the 2020 USENIX Conference on Usenix Annual Technical Conference (USENIX ATC’20), Article 58, 843–857. USENIX Association, USA.

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impl Clone for LeapOracle

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fn clone(&self) -> LeapOracle

Returns a duplicate of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for LeapOracle

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for LeapOracle

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fn default() -> LeapOracle

Returns the “default value” for a type. Read more
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impl Oracle for LeapOracle

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fn observe_cache_hit(&mut self, pageidx: PageIdx)

observe_cache_hit is called whenever Graft satisfies a page read from it’s local cache. This function is not called on a cache miss.
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fn predict_next(&mut self, pageidx: PageIdx) -> impl Iterator<Item = PageIdx>

predict_next is called when Graft has a cache miss, and can be used to hint that Graft should fetch additional pages along with the requested page. The returned iterator should be empty if no additional pages should be fetched, and it does not need to include the requested page.

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fn borrow_mut(&mut self) -> &mut T

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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where Self: UpperExp,

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const ALIGN: usize

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type Output = T

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fn tap(self, func: impl FnOnce(&Self)) -> Self

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fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self

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fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self
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fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self
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fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self

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fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self

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fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self
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fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self
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fn clone_into(&self, target: &mut T)

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