best practice for debugging a slow connection?

[shadowsocks]

best practice for debugging a slow connection?

[madeye]

Two possible issues

1. DNS pollution. Verify this by visiting Twitter in browser.
2. Slow connection. Test your speed thorough Speed Test App.

[bitinn]

I would like to re-open this issue if possible, as further testing suggest the issue is a bit more intriguing:

Setup

Galaxy Note 2 with Android 4.1, properly rooted, latest shadowsocks-android from google play.

WIFI

With global proxy option enabled, shadowsocks connection appear normal, blocked site are accessible via chrome.

3G

Using the same setup as above, I switch to 3G network and verify it's connected via chrome. Now enable shadowsocks...

DNS pollution? It would appear with shadowsocks enabled, neither blocked sites nor unblocked sites are accessible - ie. sites not loading at all. (I am using an ip address in shadowsocks config, so I assume you mean DNS pollution when querying website)

Slow connection? Fortunately I also host a few sites on the same vps as the shadowsocks server, so I tested direction connection to that host, and via 3G it's fairly fast.

My opinion

Either shadowsocks-android is not proxying the request to server at all, or it errors out during request. How does it relate to 3G network is beyond me.

[madeye]

Post your logs here with this command:

adb logcat | grep shadowsocks

[bitinn]

i am not very familiar with adb command, how shall i run it so it output the data you need?

[madeye]

1. connect your phone to PC.
2. execute adb logcat | grep shadowsocks in the terminal.
3. post the output here.

[chaosworld]

Hello, I used command you provided and found there're lots of output like this (http://picpaste.com/Screenshot_2014-11-18-13-03-09-YKopYuA8.png), and network is really slow. Do you know what these logs mean?

Shadowsocks 2.3.3
CM11 for htcm8vzw