Date: Tue, 04 Sep 2001 21:21:04 +0300 From: "Eli Zaretskii" Sender: halo1 AT zahav DOT net DOT il To: Marco Vienup Message-Id: <2427-Tue04Sep2001212103+0300-eliz@is.elta.co.il> X-Mailer: Emacs 20.6 (via feedmail 8.3.emacs20_6 I) and Blat ver 1.8.9 CC: djgpp AT delorie DOT com In-reply-to: <2p1aptcsq4ra5m2vb0mor7553fcbipv50l@4ax.com> (message from Marco Vienup on Tue, 04 Sep 2001 19:17:23 +0200) Subject: Re: speed of compiled programms References: <80o7ptk35260gn4l05obuh0du6k37psstq AT 4ax DOT com> <2p1aptcsq4ra5m2vb0mor7553fcbipv50l AT 4ax DOT com> Reply-To: djgpp AT delorie DOT com Errors-To: nobody AT delorie DOT com X-Mailing-List: djgpp AT delorie DOT com X-Unsubscribes-To: listserv AT delorie DOT com Precedence: bulk > From: Marco Vienup > Newsgroups: comp.os.msdos.djgpp > Date: Tue, 04 Sep 2001 19:17:23 +0200 > > Hm, I have a simple timeout for(...) construct. > > for(int i=0; i<=500;i++){ one small if(...) } > If it is the fast code, it will run in a timeout, with > the slow code the maximum is 100-120. So it's a four-fold slow-down? That's a _lot_... > >Anyway, I'd suggest to run objdump on both .exe files, and compare the > >results. That could show what are the differences between the two > >programs. > > objdump ? I dont know what it is, can you explain it ? It's a program which comes with the Binutils package, it should be already on your disk. Type "objdump --help" for more details. objdump can disassemble the program into a text file, and then you could compare the two text files created from each program.