From: Ryan Davis <ryand-ruby@...>
Date: 2012-09-15T03:13:01+09:00
Subject: Re: wow, YAML / Psych in 1.9.3 is *slow*!

File. A. Bug.

On Sep 14, 2012, at 7:06, matt@tidbits.com (Matt Neuburg) wrote:

> I just started trying Ruby 1.9.3, coming from Ruby 1.8.7, and was
> surprised to discover YAML's sluggishness. The chief problem seems to be
> the Psych library.
> 
> In my main use case, a certain routine takes about 14 seconds.
> 
> Fortunately, I can switch to the "syck" library:
> 
> begin
>  YAML::ENGINE.yamler = 'syck'
> rescue
> 
> Using syck, the same routine takes about 7 seconds.
> 
> That's actually a bit faster than the same routine under Ruby 1.8.7 with
> the old YAML, where the time for the same routine is 8 or 9 seconds. So
> to get the juicy goodness of improved speed in Ruby 1.9.3, I definitely
> need to use "syck".
> 
> A little googling suggests I'm not the only person to make this sort of
> observation.
> 
> m.
> 
> -- 
> matt neuburg, phd = matt@tidbits.com <http://www.tidbits.com/matt/>
> A fool + a tool + an autorelease pool = cool!
> AppleScript: the Definitive Guide - Second Edition!
> http://www.tidbits.com/matt/default.html#applescriptthings
> 
>