From: Robert Klemme <shortcutter@...>
Date: 2008-01-08T22:22:42+09:00
Subject: Re: Finding the first file in a dir, fast, for message queue

2008/1/8, Alex Maccaw <maccman@gmail.com>:
> > You find 5ms when accessing the file system long?  I'd say that's
> > pretty fast considering what you do (recursive search).  I doubt you
> > will get much improvement as long as you always access the file system
> > for your search.  If you know the change frequency of files then you
> > could store file system contents in memory and only update every n
> > seconds / minutes or whatever or have a background thread that
> > continuously updates your in memory representation.
>
>
> Well, it's long compared to generating folder names, a guid, and writing
> files. It means that I can publish about 1000 msgs per second on to my
> queue, but only pull of 243 msgs per second.

Here's another option: find all files and put them in a queue.  Only
redo search when the queue is empty.  This might pay off over all.

robert


-- 
use.inject do |as, often| as.you_can - without end