From: Robert Gleeson <rob@...>
Date: 2010-03-30T17:50:23+09:00
Subject: Re: non-blocking calls to external APIs

David Masover wrote:
> On Sunday 28 March 2010 03:31:54 am Robert Gleeson wrote:
>> I'd mention fork() as well, though, since most UNIX-like
>> distributions(if not all? I'm just not 100%) implement a copy-on-write
>> fork(), reducing the overhead people sometimes associate with fork().
> 
> It has issues with Ruby, though -- any time Ruby's garbage collector 
> runs,
> pretty much the entire process will have bits flipped in it. So it's 
> copy on
> write, or copy everything on GC.
> 
> There have been some efforts to make a COW-friendly GC for Ruby, but 
> nothing I
> know of that works on 1.9.

Thanks for the information! I hadn't a clue about that.
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