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<H1>Re: [MUD-Dev] Re: Disk v. Mem</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#null,net">mud-dev#null,net</A></LI>
<LI><em>Subject</em>: Re: [MUD-Dev] Re: Disk v. Mem</LI>
<LI><em>From</em>: <A HREF="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</A> (Chris Gray)</LI>
<LI><em>Date</em>: Wed, 14 May 97 20:56:31 MST</LI>
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<PRE>
[Jeff K:]
:Which is why you use write-through caching for output, and cache obejcst in
:memory for input.
Er, no. At least I don't, and I don't think Chris L. does either. An NPC
will be dirtying at least its own record every time it moves. So will a
player. Often lots more. Have 100 NPC's active and 30 players. That could
easily be over 100 dirtied db entries per second. If they are at random
places in the db, that is beyond what a disk drive can do in writes. So,
you end up using non-write-through with occasional flushes in order to
create usable backups. Hmm. I recall Chris L. saying he doesn't do that,
so what is your disk I/O like, Chris?
--
Chris Gray cg#ami-cg,GraySage.Edmonton.AB.CA
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev] Languages</STRONG>, <EM>(continued)</EM>
<ul compact>
<LI><strong><A NAME="00796" HREF="msg00796.html">Re: [MUD-Dev] Languages</A></strong>,
Jeff Kesselman <a href="mailto:jeffk#tenetwork,com">jeffk#tenetwork,com</a>, Mon 26 May 1997, 04:43 GMT
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<LI><strong><A NAME="00858" HREF="msg00858.html">Re: [MUD-Dev] Languages</A></strong>,
Jeff Kesselman <a href="mailto:jeffk#tenetwork,com">jeffk#tenetwork,com</a>, Wed 28 May 1997, 01:56 GMT
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<LI><strong><A NAME="00479" HREF="msg00479.html">[MUD-Dev] Levels: An abstraction of character abilities.</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Thu 15 May 1997, 22:23 GMT
<UL>
<LI><strong><A NAME="00483" HREF="msg00483.html">Re: [MUD-Dev] Levels: An abstraction of character abilities.</A></strong>,
Adam Wiggins <a href="mailto:nightfall#inficad,com">nightfall#inficad,com</a>, Thu 15 May 1997, 23:39 GMT
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<LI><strong><A NAME="00478" HREF="msg00478.html">Re: [MUD-Dev] Re: Disk v. Mem</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Thu 15 May 1997, 21:58 GMT
<LI><strong><A NAME="00474" HREF="msg00474.html">Re: Role-playing</A></strong>,
Khanone <a href="mailto:Khanone#aol,com">Khanone#aol,com</a>, Thu 15 May 1997, 02:16 GMT
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<LI><strong><A NAME="00499" HREF="msg00499.html">Re: [MUD-Dev] Re: Role-playing</A></strong>,
Shawn Halpenny <a href="mailto:malachai#iname,com">malachai#iname,com</a>, Fri 16 May 1997, 22:39 GMT
<UL>
<LI><strong><A NAME="00504" HREF="msg00504.html">Re: [MUD-Dev] Re: Role-playing</A></strong>,
Ling <a href="mailto:K.L.Lo-94#student,lut.ac.uk">K.L.Lo-94#student,lut.ac.uk</a>, Fri 16 May 1997, 23:55 GMT
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<LI><strong><A NAME="00592" HREF="msg00592.html">Re: [MUD-Dev] Re: Role-playing</A></strong>,
Shawn Halpenny <a href="mailto:malachai#iname,com">malachai#iname,com</a>, Mon 19 May 1997, 22:24 GMT
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