Rebase. Use Vec::with_capacity to create vec with proper initial size.

solana-labs · Feb 2, 2024 · 5db980e · 5db980e
1 parent 6d1f78f
commit 5db980e
Showing 1 changed file with 6 additions and 2 deletions.
diff --git a/accounts-db/src/tiered_storage/hot.rs b/accounts-db/src/tiered_storage/hot.rs
@@ -465,10 +465,14 @@ impl HotStorageReader {
         &self,
         mut index_offset: IndexOffset,
     ) -> TieredStorageResult<Vec<StoredAccountMeta>> {
-        let mut accounts = vec![];
+        let mut accounts = Vec::with_capacity(
+            self.footer
+                .account_entry_count
+                .saturating_sub(index_offset.0) as usize,
+        );
         while let Some((account, next)) = self.get_account(index_offset)? {
             accounts.push(account);
-            index_offset = IndexOffset(next as u32);
+            index_offset = next;
         }
         Ok(accounts)
     }