From e33794f7c6728fc0748d3241a27316e62c4c1e35 Mon Sep 17 00:00:00 2001
From: Milo Yip <miloyip@gmail.com>
Date: Tue, 13 Sep 2016 11:24:35 -0700
Subject: [PATCH] Optimize toJson() Performance

Summary:
Removing string::reserve() which causes O(n^2) penalty.

Fixes #477
Closes https://github.com/facebook/folly/pull/478

Reviewed By: yfeldblum

Differential Revision: D3850509

Pulled By: Orvid

fbshipit-source-id: ecf44c35b2aedadc5385d23c325cacab1abfd02d
---
 folly/json.cpp | 1 -
 1 file changed, 1 deletion(-)

diff --git a/folly/json.cpp b/folly/json.cpp
index f4607efd..105b1ca7 100644
--- a/folly/json.cpp
+++ b/folly/json.cpp
@@ -693,7 +693,6 @@ void escapeString(
     return c < 10 ? c + '0' : c - 10 + 'a';
   };
 
-  out.reserve(out.size() + input.size() + 2);
   out.push_back('\"');
 
   auto* p = reinterpret_cast<const unsigned char*>(input.begin());
-- 
2.34.1