rate: avoid creating timer in WaitN if delay is zero

name      old time/op    new time/op    delta
AllowN-4    76.7ns ± 6%    76.6ns ± 3%      ~     (p=0.897 n=10+10)
WaitNNoDelay-4     1.36µs ± 3%    0.10µs ± 1%   -92.64%  (p=0.000 n=10+9)

name      old alloc/op   new alloc/op   delta
AllowN-4     0.00B          0.00B           ~     (all equal)
WaitNNoDelay-4       208B ± 0%        0B       -100.00%  (p=0.000 n=10+10)

name      old allocs/op  new allocs/op  delta
AllowN-4      0.00           0.00           ~     (all equal)
WaitNNoDelay-4       3.00 ± 0%      0.00       -100.00%  (p=0.000 n=10+10)

Change-Id: I83addc3b3f7b053d6eee637fe188e21ca9b39f11
GitHub-Last-Rev: 2284b8e7b14d2f54870ddb80a40e8cf24996cd1f
GitHub-Pull-Request: golang/time#5
Reviewed-on: https://go-review.googlesource.com/106461
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2 files changed
tree: a1a313d6f63d861e6e9affd6144bb2c1cad54b7e
  1. AUTHORS
  2. CONTRIBUTING.md
  3. CONTRIBUTORS
  4. LICENSE
  5. PATENTS
  6. README.md
  7. rate/
README.md

Go Time

This repository provides supplementary Go time packages.

Download/Install

The easiest way to install is to run go get -u golang.org/x/time. You can also manually git clone the repository to $GOPATH/src/golang.org/x/time.

Report Issues / Send Patches

This repository uses Gerrit for code changes. To learn how to submit changes to this repository, see https://golang.org/doc/contribute.html.

The main issue tracker for the time repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/time:” in the subject line, so it is easy to find.