net/http, time: Wapper Timer with sync.Pool will improve proformace of transport 20% more.

[gopherbot]

by stormgbs:

go version: go1.3.3 linux/amd64

What does 'go version' print?

I am doing prefomace optimization for gorouter. 
1. The avg qps of gorouter is about 13000 without ResponseHeaderTimeout disabled.
2. The avg qps of gorouter is about 15500 with ResponseHeaderTimeout disabled.
3. I found that time.After() in net/http:tranport.go consumed an unwieldy amount of
memory after finishing pprof.
4. The avg qps of gorouter beccame about 15500 again after I finished wapper Timer wich
sync.Pool.

sync.Pool is prefect.

The patches are attached.

Attachments:

1. sleep.go.patch (1177 bytes)
2. transport.go.path (1193 bytes)

[ianlancetaylor]

Comment 1:

Please send changes using the process described at
http://golang.org/doc/contribute.html, not via the issue tracker.  But please wait until
after the 1.4 release, which should occur in the next week or two.  Thanks.

Status changed to WontFix.