From cebc274f2c42103f254c31fb2da7d8b61c2dc3d1 Mon Sep 17 00:00:00 2001
From: Vitaly _Vi Shukela <vi0oss@gmail.com>
Date: Tue, 17 May 2022 17:42:01 +0300
Subject: [PATCH] Avoid excessive syscall count for prometheus stats serving

---
 src/prometheus_peer.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/prometheus_peer.rs b/src/prometheus_peer.rs
index fed6449..f224afc 100644
--- a/src/prometheus_peer.rs
+++ b/src/prometheus_peer.rs
@@ -152,7 +152,8 @@ pub fn serve(psa: SocketAddr) -> crate::Result<()> {
 
     std::thread::spawn(move || {
         for s in tcp.incoming() {
-            if let Ok(mut s) = s {
+            if let Ok(s) = s {
+                let mut s = std::io::BufWriter::new(s); 
                 let stats = prometheus::default_registry().gather();
                 let header = get_static_file_reply(None, "text/plain; version=0.0.4");
                 let _ = s.write_all(&header[..]);