diff --git a/shadowsocks-libev/files/shadowsocks.conf b/shadowsocks-libev/files/shadowsocks.conf
index 77835cdc0..d6ec02e80 100644
--- a/shadowsocks-libev/files/shadowsocks.conf
+++ b/shadowsocks-libev/files/shadowsocks.conf
@@ -2,10 +2,10 @@
 # max open files
 fs.file-max = 512000
 # max read buffer
-net.core.rmem_max = 150000000
+net.core.rmem_max = 15000000
 # max write buffer
-net.core.wmem_max = 75000000
-net.core.optmem_max = 75000000
+net.core.wmem_max = 7500000
+net.core.optmem_max = 7500000
 # default read buffer
 net.core.rmem_default = 131072
 # default write buffer
@@ -34,11 +34,11 @@ net.ipv4.tcp_max_tw_buckets = 10000
 # turn on TCP Fast Open on both client and server side
 #net.ipv4.tcp_fastopen = 3
 # TCP receive buffer
-net.ipv4.tcp_rmem = 4096 524288 75000000
+net.ipv4.tcp_rmem = 4096 524288 7500000
 # TCP write buffer
-net.ipv4.tcp_wmem = 4096 524288 75000000
+net.ipv4.tcp_wmem = 4096 524288 7500000
 # TCP buffer
-net.ipv4.tcp_mem = 768174 75000000 150000000
+net.ipv4.tcp_mem = 768174 7500000 15000000
 # UDP buffer
 net.ipv4.udp_mem = 768174 75000000 150000000
 # turn off path MTU discovery