From e313de818b2f27ffaf56635185408d15a922b7e4 Mon Sep 17 00:00:00 2001
From: figtracer <1gusredo@gmail.com>
Date: Fri, 16 Jan 2026 15:40:47 +0000
Subject: [PATCH] chore(provider): pre alloc tx hashes (#21114)

---
 crates/storage/provider/src/providers/database/provider.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/crates/storage/provider/src/providers/database/provider.rs b/crates/storage/provider/src/providers/database/provider.rs
index 1f4637d33f..8a5e04b3c7 100644
--- a/crates/storage/provider/src/providers/database/provider.rs
+++ b/crates/storage/provider/src/providers/database/provider.rs
@@ -493,7 +493,9 @@ impl<TX: DbTx + DbTxMut + 'static, N: NodeTypesForProvider> DatabaseProvider<TX,
                 self.prune_modes.transaction_lookup.is_none_or(|m| !m.is_full())
             {
                 let start = Instant::now();
-                let mut all_tx_hashes = Vec::new();
+                let total_tx_count: usize =
+                    blocks.iter().map(|b| b.recovered_block().body().transaction_count()).sum();
+                let mut all_tx_hashes = Vec::with_capacity(total_tx_count);
                 for (i, block) in blocks.iter().enumerate() {
                     let recovered_block = block.recovered_block();
                     let mut tx_num = tx_nums[i];