aleafs/itier-client — pull request #11 by fengmk2 (2012-08-31 03:04:41+00:00)
Title: use Keepalive agent by default.

I think is time to use keepalive agent by default.
I have use `agentkeepalive` on my application more than a week.

benchmark result on stg:

before:
![http://ww1.sinaimg.cn/large/6cfc7910jw1dwfomzu0c3j.jpg](http://ww1.sinaimg.cn/large/6cfc7910jw1dwfomzu0c3j.jpg)

after:
![http://ww3.sinaimg.cn/large/6cfc7910jw1dwfonxak1lj.jpg](http://ww3.sinaimg.cn/large/6cfc7910jw1dwfonxak1lj.jpg)