Message-ID: <B0000030602@stargate.astr.lu.lv>
From: "Andris Pavenis" <pavenis AT lanet DOT lv>
To: ipasm AT redline DOT ru
Date: Thu, 21 May 1998 17:42:11 +0300
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Subject: Re: Need help - Slow I/O in Linux dosemu
CC: djgpp AT delorie DOT com
In-reply-to: <35641ef8.0@news2.redline.ru>
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From:           	ipasm AT redline DOT ru (Sergey Aranovsky)
Subject:        	Re: Need help - Slow I/O in Linux dosemu

> On Wed, 20 May 1998 12:26:22 +0300 (IDT), Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
> wrote:
> >
> >On 19 May 1998, Sergey Aranovsky wrote:
> >
> >> I run Linux 2.0.33 and recently tried to run DJGPP in
> >> dosemu. All I/O is VERY SLOW. It includes compilation, compiled
> >> programs etc. For example, when typing commands in bash, timeout
> >> between pressing a key and appearing of the character on console
> >> in near 1/3-1/2 sec. Vim startup (parsing startup files) takes
> >>  ~1 min. 
> >
> >Did you try the advice in section 3.4 of the DJGPP FAQ list?
> 
> I run dosemu 0.66.7, which have save_rm_context patch applied
> in its code. 
> 
> I don't have problems with, say, Borland tools. Slow I/O seems
> to be specific to dosemu+DJGPP or (my dosemu configuration)+DJGPP
> combination and programs compiled with it.

My experience was different.  I'm used DOSEMU-0.97.4. Borland C++ 3.1 IDE runs 
under it terribly slowly. gcc-2.8.1 for DJGPP runs much better (of course in DOSEMU 
not so fast as under Win95). Have to reinstall Linux from scratch recently
so didn't tried latest versions. Haven't installed DOSEMU after that at all.

I used LREDIR to get access to DOS partitions (really mounted in Linux as
VFAT ones).

Of course there are problems with DJGPP under DOSEMU. Once tried to
build DJGPP port of gcc-2.8.1 from DOSEMU and almost succeed
(DOSEMU didn't like filenames with extension .null)

Andris