Unexpected latency problem

[clowwindy]

clowwindy@clowwindy-rmbp:~$ time curl -L --socks5-hostname 127.0.0.1:1081 http://www.google.com/ >/dev/null 2>&1

real    0m0.413s
user    0m0.005s
sys 0m0.005s
clowwindy@clowwindy-rmbp:~$ time curl -L --socks5-hostname 127.0.0.1:1080 http://www.google.com/ >/dev/null 2>&1

real    0m0.332s
user    0m0.005s
sys 0m0.007s
clowwindy@clowwindy-rmbp:~$ time curl -L --socks5-hostname 127.0.0.1:1081 http://www.google.com/ >/dev/null 2>&1

real    0m0.376s
user    0m0.005s
sys 0m0.005s
clowwindy@clowwindy-rmbp:~$ time curl -L --socks5-hostname 127.0.0.1:1080 http://www.google.com/ >/dev/null 2>&1

real    0m0.342s
user    0m0.003s
sys 0m0.004s

with Shadowsocks running on 1080 and ShadowSPDY running on 1081 and both servers running on the same VPS.

[clowwindy]

shadowsocks/shadowsocks-nodejs#93