Improve performance for serialization of entities

[justfalter]

Hi there,

I spent a little bit of time profiling grape-entity using ruby-prof, and found a couple of ways to improve performance during the serialization process. This changeset sees Grape::Entity serializing ~2.5 times faster, by my benchmark.

Before:

$ bundle exec ruby bench/serializing.rb
       user     system      total        real
serializing  1.800000   0.000000   1.800000 (  1.800179)

After:

$ bundle exec ruby bench/serializing.rb
       user     system      total        real
serializing  0.750000   0.000000   0.750000 (  0.751563)

[dblock]

This is great! The build is still failing, if you could please take a look. Also please do update CHANGELOG.

[justfalter]

Hi @dblock, it looks like the issue is that rspec 3 was released. I just sent another pull request to fix it (#77)... If that goes through, I'll be able to merge the changes into my branch so that it doesn't look like I'm awful at writing code.

[justfalter]

I've updated the changelog and rebased against #77 .

[justfalter]

Yay! Glad I could help!

[justfalter]

Out of curiosity, when would the next release occur? I'm eager to leverage this code without having to do goofy Gemfile tricks. Thanks again!

[dblock]

I plan to make a release soon, maybe next week? I usually integrate it into our very large API project first, that just takes me a while to wait on builds/tests to finish...

[dblock]

Oh wait, this is grape-entity, not Grape. I can cut a small release now.

[dblock]

Et voila, 0.4.4 is out. Performance is a good argument :)

[etehtsea]

👍