Optimize account hash CumulativeOffset index from vec to 2-element array (#33839)

* optimize account hash merkle tree index from vec to 2-element array

* typo

---------

Co-authored-by: HaoranYi <haoran.yi@solana.com>
This commit is contained in:
HaoranYi 2023-10-24 13:26:16 -05:00 committed by GitHub
parent 381d2254eb
commit 9064b8b2a2
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1 changed files with 7 additions and 6 deletions

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@ -334,7 +334,8 @@ const _: () = assert!(
#[derive(Default, Debug, PartialEq, Eq)]
pub struct CumulativeOffset {
pub index: Vec<usize>,
/// Since the source data is at most 2D, two indexes are enough.
pub index: [usize; 2],
pub start_offset: usize,
}
@ -416,7 +417,7 @@ impl CumulativeOffsets {
.filter_map(|(i, len)| {
if len > 0 {
let result = CumulativeOffset {
index: vec![i],
index: [i, i],
start_offset: total_count,
};
total_count += len;
@ -1373,7 +1374,7 @@ mod tests {
cumulative_offsets = Vec::with_capacity(raw.len() * v_outer.len());
}
cumulative_offsets.push(CumulativeOffset {
index: vec![i, j],
index: [i, j],
start_offset: total_count,
});
total_count += len;
@ -2126,7 +2127,7 @@ mod tests {
fn test_accountsdb_cumulative_find() {
let input = CumulativeOffsets {
cumulative_offsets: vec![CumulativeOffset {
index: vec![0],
index: [0; 2],
start_offset: 0,
}],
total_count: 0,
@ -2136,11 +2137,11 @@ mod tests {
let input = CumulativeOffsets {
cumulative_offsets: vec![
CumulativeOffset {
index: vec![0],
index: [0; 2],
start_offset: 0,
},
CumulativeOffset {
index: vec![1],
index: [1; 2],
start_offset: 2,
},
],