From 4791d16a8efc42fb40ffab79bcdae4f0e106cd89 Mon Sep 17 00:00:00 2001
From: Matt Mastracci <matthew@mastracci.com>
Date: Thu, 7 Mar 2024 10:00:43 -0700
Subject: perf(cli): use faster_hex (#22761)

`cli::util::checksum` was showing up on flame graphs because it was
concatenating allocated strings. We can use `faster-hex` to improve it.
---
 ext/node/Cargo.toml        | 2 +-
 ext/node/ops/crypto/mod.rs | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

(limited to 'ext/node')

diff --git a/ext/node/Cargo.toml b/ext/node/Cargo.toml
index cd03c53fe..3f417bb01 100644
--- a/ext/node/Cargo.toml
+++ b/ext/node/Cargo.toml
@@ -32,8 +32,8 @@ dsa = "0.6.1"
 ecb.workspace = true
 elliptic-curve.workspace = true
 errno = "0.2.8"
+faster-hex.workspace = true
 h2 = { version = "0.3.17", features = ["unstable"] }
-hex.workspace = true
 hkdf.workspace = true
 http_v02.workspace = true
 idna = "0.3.0"
diff --git a/ext/node/ops/crypto/mod.rs b/ext/node/ops/crypto/mod.rs
index f73d96580..39d6b8bd5 100644
--- a/ext/node/ops/crypto/mod.rs
+++ b/ext/node/ops/crypto/mod.rs
@@ -163,7 +163,7 @@ pub fn op_node_hash_digest_hex(
   let context = Rc::try_unwrap(context)
     .map_err(|_| type_error("Hash context is already in use"))?;
   let digest = context.digest()?;
-  Ok(hex::encode(digest))
+  Ok(faster_hex::hex_string(&digest))
 }
 
 #[op2(fast)]
-- 
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