diff --git a/shadowsocks-libev/files/shadowsocks.conf b/shadowsocks-libev/files/shadowsocks.conf
index 05a74d6b3..9f705a6f1 100644
--- a/shadowsocks-libev/files/shadowsocks.conf
+++ b/shadowsocks-libev/files/shadowsocks.conf
@@ -35,9 +35,9 @@ net.ipv4.tcp_fastopen = 3
 # TCP receive buffer
 net.ipv4.tcp_rmem = 4096 87380 134217728
 # TCP write buffer
-net.ipv4.tcp_wmem = 4096 87380 134217728
+net.ipv4.tcp_wmem = 4096 65536 134217728
 # TCP buffer
-##net.ipv4.tcp_mem = 25600 87380 102400
+net.ipv4.tcp_mem = 134217728 134277728 134217728
 # turn off path MTU discovery
 net.ipv4.tcp_mtu_probing = 0