From 3242ef602d6f7c2666aa67acc862f6d8312aa945 Mon Sep 17 00:00:00 2001
From: Gregory <gregory.mkv@gmail.com>
Date: Thu, 3 Sep 2020 22:12:04 -0400
Subject: Test out buffered writes

---
 src/input.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/input.rs b/src/input.rs
index b9982ed..5fa46cb 100644
--- a/src/input.rs
+++ b/src/input.rs
@@ -3,6 +3,7 @@ use regex::bytes::Regex;
 use std::{
     fs::File,
     io::prelude::*,
+    io::BufWriter,
     path::{Path, PathBuf},
 };
 
@@ -124,7 +125,8 @@ impl Replacer {
 
         if !replaced.is_empty() {
             let mut mmap_target = unsafe { MmapMut::map_mut(&file)? };
-            mmap_target.deref_mut().write_all(&replaced)?;
+            BufWriter::with_capacity(1_000_000_000, mmap_target.deref_mut())
+                .write_all(&replaced)?;
             mmap_target.flush_async()?;
         }
 
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