Xref: news2.mv.net comp.os.msdos.djgpp:1619
From: Tom_King AT cegelecproj DOT co DOT uk
Newsgroups: comp.os.msdos.djgpp
Subject: V2 Performance slower than V1?
Date: 28 Feb 1996 04:19:33 -0500
Organization: Yale CS Mail/News Gateway
Lines: 24
Sender: daemon AT cs DOT yale DOT edu
Message-ID: <199602280918.JAA00657@wraith.cegelecproj.co.uk>
To: djgpp AT delorie DOT com
DJ-Gateway: from newsgroup comp.os.msdos.djgpp

All,

I recently downloaded djgpp V2. When installed, I tried compiling a
program that I compiled many times under V1. It compiled fine, but
appeared to run about 10-20% slower than under V1.

I used the same optimisation flags as I did under V1, and tried with
and without the -fno-strength-reduce entry in lib/specs (as mentioned
in the FAQ).The flags I used were

-O3 -m486 -fomit-frame-pointer

Anyone know why V2 might be slower?
Are there any other compiler options I could use for *maximum*
performance optimisation?

Thanks in advance,
Tom King

--
***********************************************************************
* Tom King (Tom_King AT cegelecproj DOT co DOT uk)                               *
* ...all opinions expressed are my own and not those of my employer...*
***********************************************************************