From: "Rafael García" <rafael AT geninfor DOT com>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: performance
Date: Sat, 30 Jan 1999 12:02:50 +0100
Organization: CTV/JET
Lines: 27
Message-ID: <78uoui$ago$1@lola.ctv.es>
References: <39AE1D927549D111A88F00A0C94B9C7D628ECB AT RJ01MAI01>
NNTP-Posting-Host: infon459.jet.es
X-Trace: lola.ctv.es 917694226 10776 195.55.157.203 (30 Jan 1999 11:03:46 GMT)
X-Complaints-To: usenet AT lola DOT ctv DOT es
NNTP-Posting-Date: 30 Jan 1999 11:03:46 GMT
X-Newsreader: Microsoft Outlook Express 4.72.2106.4
X-Mimeole: Produced By Microsoft MimeOLE V4.72.2106.4
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp
Reply-To: djgpp AT delorie DOT com


josepva AT informatica DOT TELERJ DOT net DOT br escribió en mensaje
<39AE1D927549D111A88F00A0C94B9C7D628ECB AT RJ01MAI01>...

>I'm troubled too, but I think that the diference in access speed is that
the
>DJGPP have to switch to real mode to call DOS funcs and it makes your
>program slower.

The problem was the output to console during searching. The program shows in
a 'status line'  the record in proccess during the search. This was de
bottleneck: under BC y use direct access to video memory and time consumed
is nothing. But I don´t know how can do this with gcc, and I changed output
thru cputs. But this is SLOOOOOOOW.

I tried to profile using -pg parm to compiler and 'Link for profiling' from
RHIDE, but program but it produces a SIGSEGV.

Then I did a test without output and got it. Now I have a limitation in
frecuency of msgs to user during all proccess and times are good. Except
where is necessary console output. Do you know if its possible to use
another system for screen write?

Thank you.