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Improve cached hashing performance

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This commit is contained in:
Paul Hauner
2019-04-28 11:33:29 +10:00
parent 89d64b007f
commit c58723350c
3 changed files with 79 additions and 16 deletions
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9
eth2/utils/cached_tree_hash/src/impls.rs
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@@ -86,19 +86,22 @@ impl CachedTreeHash<[u8; 4]> for [u8; 4] {
impl CachedTreeHash<H256> for H256 {
fn new_tree_hash_cache(&self, _depth: usize) -> Result<TreeHashCache, Error> {
Ok(TreeHashCache::from_bytes(
merkleize(self.as_bytes().to_vec()),
self.as_bytes().to_vec(),
false,
None,
)?)
}
fn num_tree_hash_cache_chunks(&self) -> usize {
1
}
fn tree_hash_cache_schema(&self, depth: usize) -> BTreeSchema {
BTreeSchema::from_lengths(depth, vec![1])
}
fn update_tree_hash_cache(&self, cache: &mut TreeHashCache) -> Result<(), Error> {
let leaf = merkleize(self.as_bytes().to_vec());
cache.maybe_update_chunk(cache.chunk_index, &leaf)?;
cache.maybe_update_chunk(cache.chunk_index, self.as_bytes())?;
cache.chunk_index += 1;