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From: | Tom St Denis <stdenis AT compmore DOT net> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: (slightly OT) DJGPP Allegro is faster then MingW32 Allegro? |
Date: | Mon, 29 Jan 2001 12:34:57 GMT |
Organization: | Deja.com |
Lines: | 36 |
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To: | djgpp AT delorie DOT com |
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In article <ac2a7t4dqt6nljbuos6iukfll85k32d7sr AT 4ax DOT com>, Damian Yerrick <Bullcr_pd_yerrick AT hotmail DOT comRemoveBullcr_p> wrote: > On Sun, 28 Jan 2001 20:35:53 GMT, Tom St Denis <stdenis AT compmore DOT net> > wrote: > > >When I build tests/test.exe with either I find that hline is faster in DJGPP > >than MingW32 despite my card having "accelerated solid hline functions" (as > >reported by allegro). > > > >I get 850,000 hlines per sec with DJGPP and 400,000 with MingW. > > > >Any clues to why it's slower? > > What did you have running in the background? Windows 9x gives much > more time to DOS tasks than Win32 tasks. Or did you run the DJGPP > version from plain DOS? > > How well optimized is driver support for your card's fill (aka solid > hline) function? > > There's a lot more overhead on some calls under plain old DOS than > there is on WinDOS. > > You might want to take this up with the Allegro mailing list: > http://www.talula.demon.co.uk/allegro/maillist.html > as they likely know much more about Allegro (especially the non-DJGPP > ports) than we do. Well it gets wierder. My 3d library+test runs at the same fps in djgpp as ming. It's only tests/test.exe that differs. Tom Sent via Deja.com http://www.deja.com/
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