From: SASADA Koichi <ko1@...>
Date: 2011-09-09T00:55:40+09:00
Subject: [ruby-core:39367] Re: [Feature: Ruby 1.9] profile interface

Hi,

(2011/09/06 22:58), Charlie Savage wrote:
>> I made a simple profiling interface.
>> Of course, method names and other programming interfaces should be
>> considered.
>>
>> experimental implementation:
>> http://www.atdot.net/sp/view/ht3mql/readonly?lang=diff
>>
>> For example, you can get a following information with short code:
>>
>>    {} # create a hash object
>>    require 'pp'
>>    pp RubyVM::profile_get
> 
> To be most useful, you would want to know which methods resulted in
> which actions.  If I am profiling a Rails application, which method
> created the most objects and of what type.  Would this implementation
> allow that?  Here is a good example:
> 
> http://tenderlovemaking.com/2011/06/29/i-want-dtrace-probes-in-ruby/
> 
> Also, would it be better to hook up Dtrace instead (although that won't
> work on Windows for example).

I agree with you that your proposal is useful.  However, I think such
measurements should on the upper layer of it.  I'll expand this
primitive profiler interface to support such a measurements.

(enables to register hook function, in easy words)

-- 
// SASADA Koichi at atdot dot net