From: Thomas Demmer Newsgroups: comp.os.msdos.djgpp Subject: Re: profiling problems... Date: Fri, 13 Feb 1998 18:11:22 +0100 Organization: Lehrstuhl fuer Stroemungsmechanik Lines: 41 Message-ID: <34E47EBA.B5DF404F@LSTM.Ruhr-UNI-Bochum.De> References: <6c12pa$gf7$1 AT katie DOT vnet DOT net> <34E4609C DOT 8176C9D1 AT LSTM DOT Ruhr-UNI-Bochum DOT De> NNTP-Posting-Host: bvb.lstm.ruhr-uni-bochum.de Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit CC: Paul Byrne To: djgpp AT delorie DOT com DJ-Gateway: from newsgroup comp.os.msdos.djgpp Precedence: bulk Thomas Demmer wrote: > > Paul Byrne wrote: [...] > > > The report from gprof only accounts for about 10 seconds of computation. > > I ran it again and let it go for an hour or so, stopped the program > > and gprof accounts for 30 seconds. (Without profiling the program > > exits normally in about 5 minutes.) It does seem to be consuming CPU > > time, it's just not doing anything. > With profiling on, the run time is about 2-3 times normal speed, > so this is normal. > [...] Seems to be one of my not that good days... Rereading and this time understanding your mail... A factor of 120 _is_ strange. Do you run this in a Windows DOS box or under plain DOS? The only idea I have right now that running under W95 screws up the timer, if you run under DOS, it should behave quite normal. What exactly does you program do? Is there a lot of swapping? Any networking stuff included? Please post how much memory you have available, and how much your program approximately consumes. -- Ciao Tom ************************************************************* * Thomas Demmer * * Lehrstuhl fuer Stroemungsmechanik * * Ruhr-Uni-Bochum * * Universitaetsstr. 150 * * D-44780 Bochum * * Tel: +49 234 700 6434 * * Fax: +49 234 709 4162 * * http://www.lstm.ruhr-uni-bochum.de/~demmer * *************************************************************