commit 2bc1b4fbcc7c3eda9a26f6e523cac1196c6fecd7
author Blake Mizerany <blake.mizerany@gmail.com> Mon Sep 19 08:35:16 2016 -0700
committer Brad Fitzpatrick <bradfitz@golang.org> Mon Sep 19 20:36:28 2016 +0000
tree 91147e879b04987e4ca9f21f5c4c22d52450b707
parent a4bde12657593d5e90d0533a3e4fd95e635124cb

rate: double reserveN perf by 2x

This commit increase the speed of reserveN by 2x by removing the defer
to unlock.

NOTE: I did an audit of the code between Lock and Unlock and did not see
anything that can panic causing the Unlock to averted.

benchmark             old ns/op     new ns/op     delta
BenchmarkAllowN-4     290           143           -50.69%

benchmark             old allocs     new allocs     delta
BenchmarkAllowN-4     0              0              +0.00%

benchmark             old bytes     new bytes     delta
BenchmarkAllowN-4     0             0             +0.00%

Change-Id: I01c23f4998f5451ea8efedd02e744fb5a74eae0d
Reviewed-on: https://go-review.googlesource.com/29379
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>