Add ARC, an Adaptive Replacement Cache. #2820
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wu-hanqing
approved these changes
Oct 19, 2023
wuhongsong
approved these changes
Oct 19, 2023
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Signed-off-by: Xu Yifeng <[email protected]>
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What problem does this PR solve?
Issue Number: #2819
Problem Summary:
Add ARC Cache, an Adaptive Replacement Cache.
Normal LRU cache is not scan-resistant while ARC is.
ARC also has ghost cache (key cache) can improve cache behavior.
What's Changed:
A head file arc_cache.h is added and included by lru_cache.h
How it Works:
Side effects(Breaking backward compatibility? Performance regression?):
GetLast() function may not work as same as LRUCache, because ARC cache is not ordered by time when a cache
item is entered or hit.
Check List