ledger-tool uses jemalloc like validator (#21351)

ledger-tool/src/main.rs

@@ -833,6 +833,12 @@ fn assert_capitalization(bank: &Bank) {
     let debug_verify = true;
     assert!(bank.calculate_and_verify_capitalization(debug_verify));
 }
+#[cfg(not(target_env = "msvc"))]
+use jemallocator::Jemalloc;
+
+#[cfg(not(target_env = "msvc"))]
+#[global_allocator]
+static GLOBAL: Jemalloc = Jemalloc;
 
 #[allow(clippy::cognitive_complexity)]
 fn main() {