From 959c8802c02984ff3b37d3303aaf92f5ae5b3848 Mon Sep 17 00:00:00 2001
From: bigbear <155267841+aso20455@users.noreply.github.com>
Date: Fri, 30 Jan 2026 19:06:09 +0100
Subject: [PATCH] triedb/pathdb: use known size for history slice allocation

---
 triedb/pathdb/history_state.go    | 2 +-
 triedb/pathdb/history_trienode.go | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/triedb/pathdb/history_state.go b/triedb/pathdb/history_state.go
index 23428b1a54..ddfe6e1099 100644
--- a/triedb/pathdb/history_state.go
+++ b/triedb/pathdb/history_state.go
@@ -568,11 +568,11 @@ func readStateHistory(reader ethdb.AncientReader, id uint64) (*stateHistory, err
 
 // readStateHistories reads a list of state history records within the specified range.
 func readStateHistories(freezer ethdb.AncientReader, start uint64, count uint64) ([]history, error) {
-	var histories []history
 	metaList, aIndexList, sIndexList, aDataList, sDataList, err := rawdb.ReadStateHistoryList(freezer, start, count)
 	if err != nil {
 		return nil, err
 	}
+	histories := make([]history, 0, len(metaList))
 	for i := 0; i < len(metaList); i++ {
 		var m meta
 		if err := m.decode(metaList[i]); err != nil {
diff --git a/triedb/pathdb/history_trienode.go b/triedb/pathdb/history_trienode.go
index 11d6112806..78b494a61e 100644
--- a/triedb/pathdb/history_trienode.go
+++ b/triedb/pathdb/history_trienode.go
@@ -842,7 +842,7 @@ func readTrienodeHistories(reader ethdb.AncientReader, start uint64, count uint6
 	if err != nil {
 		return nil, err
 	}
-	var res []history
+	res := make([]history, 0, len(headers))
 	for i, header := range headers {
 		var h trienodeHistory
 		if err := h.decode(header, keySections[i], valueSections[i]); err != nil {