From 0225fc3bffbc07902046270f0c039ea562efdfed Mon Sep 17 00:00:00 2001
From: Alexey Avramov <hakavlad@gmail.com>
Date: Sun, 15 Mar 2020 12:27:22 +0900
Subject: [PATCH] Reduce CPU usage up to 8%

Disable buffering /proc/meminfo
---
 nohang/nohang | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nohang/nohang b/nohang/nohang
index 6cce4a2..a330fff 100755
--- a/nohang/nohang
+++ b/nohang/nohang
@@ -1339,7 +1339,7 @@ def find_psi_metrics_value(psi_path, psi_metrics):
 def check_mem_and_swap():
     """
     """
-    with open('/proc/meminfo', 'rb') as f:
+    with open('/proc/meminfo', 'rb', buffering=0) as f:
         m_list = f.read().decode().split(' kB\n')
     return (int(m_list[2].split(':')[1]),
             int(m_list[swap_total_index].split(':')[1]),