Article View: comp.sys.amiga.tech
Article #1632Re: dos_stuff
From: Rob Peck
Date: Thu, 12 Oct 1989 16:35
Date: Thu, 12 Oct 1989 16:35
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1397 bytes
In article <5571@ucdavis.ucdavis.edu> rogers@iris.ucdavis.edu (Brewski Rogers) writes: > >So putting all my little files into one big file should help too? >the big file would be about 500K in that case, and a typical load >of a map would need to go through just about the whole thing reading >in the 120K of data it wanted. Somehow I believe that if you are using this superfile thing and using seek commands from AmigaDOS or fseek() from a compiler would retrieve the file quite a bit more quickly than "go through just about the whole thing". Presumably you maintain an index of what data it needs at a particular point, and can therefore build a table of indexes off of which to seek to get there. I never found out quite HOW AmigaDOS finds a particular sector, but I doubt that it would have to read an entire file each time just to do a seek to a particular position. Rob Peck
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!gem.mps.ohio-state.edu!apple!vsi1!ubvax!ardent!peck!rap From: rap@peck.ardent.com (Rob Peck) Newsgroups: comp.sys.amiga.tech Subject: Re: dos_stuff Keywords: Spam,dos,spamalopes Message-ID: <8682@ardent.UUCP> Date: 12 Oct 89 16:35:49 GMT References: <5571@ucdavis.ucdavis.edu> Sender: news@ardent.UUCP Reply-To: rap@peck.ardent.com (Rob Peck) Organization: Ardent Computer Corp., Sunnyvale, CA Lines: 18