Message-ID: <3E399FAC.2050104@mif.vu.lt>
Date: Thu, 30 Jan 2003 22:57:00 +0100
From: Laurynas Biveinis <laurynas DOT biveinis AT mif DOT vu DOT lt>
Organization: VU MIF
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To: djgpp-workers AT delorie DOT com, Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
Subject: Re: small solve_symlinks speedup
References: <3E39923A DOT 3040907 AT mif DOT vu DOT lt> <2561-Thu30Jan2003222210+0200-eliz AT is DOT elta DOT co DOT il>
In-Reply-To: <2561-Thu30Jan2003222210+0200-eliz@is.elta.co.il>
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Reply-To: djgpp-workers AT delorie DOT com

Eli Zaretskii wrote:
> Ahm, sorry, but where are the differences between these two graphs
> that we are supposed to look at to answer your question?  To me, they
> both look almost identical.

Look at how many functions are called from __solve_symlinks. The patch
cuts almost 30000 calls to __internal_readlink, which does disk I/O.

> I do support any simple changes that minimize the number of files we
> need to open and read.

Does that change look simple enough?

>>On a unrelated note, why does OpenBSD with Pentium MMX 200 Mhz and
>>16 MB RAM run configure scripts *much* faster than DJGPP on my desktop
>>Pentium II 375 Mhz 192 RAM with W2K ?
> 
> 
> Probably because pipes and `command` substitution goes through memory
> instead of disk files

I remember having a ramdrive back in win98 days for /dev/env/DJDIR/tmp .
It helped a lot, however there was still a notable difference between
linux and djgpp. Is there any way to create a ramdrive on w2k?