Subject: Re: Request: I/O request recording
From: Felipe Alfaro Solana <felipe_alfaro@linuxmail.org>
To: Linux Kernel Mailinglist <linux-kernel@vger.kernel.org>
In-Reply-To: <Pine.LNX.4.44.0401241550350.14163-100000@bigblue.dev.mdolabs.com>
References: <Pine.LNX.4.44.0401241550350.14163-100000@bigblue.dev.mdolabs.com>
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Date: Sun, 25 Jan 2004 13:26:41 +0100
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On Sun, 2004-01-25 at 00:53, Davide Libenzi wrote:
> > So it's all an attempt to optimise the boot-time I/O patterns.  It was
> > pretty much a waste of time, gaining only 10% or so, from memory.  You
> > could get just as much or more speedup from simply launching all the
> > initscripts in parallel, although this did tend to break stuff.
> > 
> > Anyway, the code's ancient but might provide some ideas:
> > 
> > 	http://www.zip.com.au/~akpm/linux/fboot.tar.gz
> 
> Warning. I don't know if they do have a patent for this, but MS does this 
> starting from XP (look inside %WINDIR%\PreFetch). It is both boot and app 
> based.

And tomorrow, they'll say the have patented the hamburger recipe, or the
euclidean triangle, or... who knows. C'mon... The world is going crazy!

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