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<H1>Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</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] World Persistence, flat files v/s DB v/s ?? </LI>
<LI><em>From</em>: J C Lawrence <<A HREF="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</A>></LI>
<LI><em>Date</em>: Mon, 23 Mar 1998 12:48:36 -0800</LI>
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<PRE>
On Sun, 22 Mar 1998 12:17:33 PST8PDT
Ben Greear<greear#cyberhighway,net> wrote:
> On Sun, 22 Mar 1998, Greg Munt wrote:
>> I'm not sure of the advantages of binary flat files over ASCII
>> ones. I would certainly advise the use of a cache,
>> however. (Something which that TinyMUD never used.)
> I'm definaly not going to write a custom caching mechanism...much
> easier and probably better to use the OS.
I use a fairly simple extension of an LRU cache for my DB (now
persistant store). Turning off the DB cache degrades performance to
less than 1/8th the transaction rate I can support with the cache.
There are reasons procesors have pipeline look-ahead, instruction
caches, databases have record and object caches, filesystems have
read/write caches, hard drives have caches on the drive itself, SCSI
adaptors have caches on the card, etc etc etc (between a single
fwrite() call and the disk platter there are 5 caches in my system --
all of them doing their job in increasing disk read/write performance)
--
J C Lawrence Internet: claw#null,net
(Contractor) Internet: coder#ibm,net
---------(*) Internet: claw#under,engr.sgi.com
...Honourary Member of Clan McFud -- Teamer's Avenging Monolith...
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<LI><STRONG><A NAME="00828" HREF="msg00828.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></STRONG>
<UL><LI><EM>From:</EM> Ben Greear <greear#cyberhighway,net></LI></UL></LI>
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</STRONG>, <EM>(continued)</EM>
<ul compact>
<LI><strong><A NAME="00818" HREF="msg00818.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
Greg Munt <a href="mailto:greg#uni-corn,demon.co.uk">greg#uni-corn,demon.co.uk</a>, Sun 22 Mar 1998, 17:36 GMT
<UL>
<LI><strong><A NAME="00828" HREF="msg00828.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
Ben Greear <a href="mailto:greear#cyberhighway,net">greear#cyberhighway,net</a>, Sun 22 Mar 1998, 20:15 GMT
<UL>
<LI><strong><A NAME="00831" HREF="msg00831.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Sun 22 Mar 1998, 21:27 GMT
<UL>
<LI><strong><A NAME="00860" HREF="msg00860.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Mon 23 Mar 1998, 20:50 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00859" HREF="msg00859.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Mon 23 Mar 1998, 20:48 GMT
</LI>
</UL>
</LI>
</UL>
</LI>
<LI><strong><A NAME="00857" HREF="msg00857.html">Re: [MUD-Dev] World Persistence, flat files v/s DB v/s ??</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Mon 23 Mar 1998, 20:41 GMT
</LI>
</ul>
</LI>
<LI><strong><A NAME="00809" HREF="msg00809.html">Re: [MUD-Dev] Parlez vous NPC?</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Sat 21 Mar 1998, 18:10 GMT
<UL>
<LI><strong><A NAME="00813" HREF="msg00813.html">Re: [MUD-Dev] Parlez vous NPC?</A></strong>,
Matt Chatterley <a href="mailto:matt#mpc,dyn.ml.org">matt#mpc,dyn.ml.org</a>, Sun 22 Mar 1998, 12:46 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00808" HREF="msg00808.html">Re: [MUD-Dev] Dynamic Loading of Modules</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Sat 21 Mar 1998, 17:58 GMT
</LI>
</UL></BLOCKQUOTE>
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