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<H1>[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges</H1>
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<LI><em>To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Subject</em>: [MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges</LI>
<LI><em>From</em>: "Jon A. Lambert" <<A HREF="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</A>></LI>
<LI><em>Date</em>: Mon, 10 Aug 1998 23:56:18 -5</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
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<PRE>
On 10 Aug 98, James Wilson wrote:
> Thanks for the reference. I read it a couple of days ago when I was poking
> through the archive, but it's more useful to me now after the recent
> discussions.
> Portability question: does the select() available with the mingw32 system
> (which
> might come straight out of winsock, I don't know) have any gotchas? I can
> get about 20-30 connections accepted per second, with the client on the
> local
> machine; that seems plenty fast to me.
>
What is the mingw32 system?
> The reason I'm paranoid about the amount of time spent in processing is user
> scripts; I'm sure I can't trust people not to write inefficient or
> infinite-looping code,
> and it'd sure be nice to have the latter locked away in a thread so they
> don't
> prevent others from logging in (or me from killing the runaway). I'm not
> sure how
> this could be accomplished cleanly in a single thread. Also, if one uses a
> disk-based
> system, 'zone faults' would seem to be a great thing to put in a thread
> separate
> from the socket i/o thread.
>
> I'm a bit concerned about the overhead of using a thread pool, though, since
> my two
> target platforms (win32 and linux) use heavyweight threads. Has anyone tried
> a bytecode vm that implements user-level threads, setting up a scheduler
> that timeslices between 'processes', switches context on blocking i/o, and
> so on? Maybe this could give you lightweight, portable threading while
> keeping the whole process in a single thread? I'm imagining something where
> the main thread is either chomping bytecode or checking for io-ready
> sockets.
>
Aye . I believe MUQ does exactly this. Many of the programable
servers impose execution limits on internal tasks (i.e. Cold, LP)
--
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<LI><STRONG><A NAME="00646" HREF="msg00646.html">[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges)</A></STRONG>
<UL><LI><EM>From:</EM> "James Wilson" <jwilson#rochester,rr.com></LI></UL></LI>
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<ul><li>Thread context:
<BLOCKQUOTE><UL>
<LI><STRONG>[MUD-Dev] Re: clients anyone?...</STRONG>, <EM>(continued)</EM>
<ul compact>
<ul compact>
<LI><strong><A NAME="01081" HREF="msg01081.html">[MUD-Dev] Re: clients anyone?...</A></strong>,
Andrew Wilson <a href="mailto:andrew#aaaaaaaa,demon.co.uk">andrew#aaaaaaaa,demon.co.uk</a>, Sun 20 Sep 1998, 00:58 GMT
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</ul>
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</LI>
<LI><strong><A NAME="00651" HREF="msg00651.html">[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges</A></strong>,
James Wilson <a href="mailto:jwilson#rochester,rr.com">jwilson#rochester,rr.com</a>, Tue 11 Aug 1998, 04:20 GMT
<UL>
<LI><strong><A NAME="00655" HREF="msg00655.html">[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Tue 11 Aug 1998, 06:58 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00646" HREF="msg00646.html">[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges)</A></strong>,
James Wilson <a href="mailto:jwilson#rochester,rr.com">jwilson#rochester,rr.com</a>, Tue 11 Aug 1998, 02:44 GMT
<UL>
<LI><strong><A NAME="00650" HREF="msg00650.html">[MUD-Dev] Re: async i/o and threads (was: Re: lurker emerges</A></strong>,
Jon A. Lambert <a href="mailto:jlsysinc#ix,netcom.com">jlsysinc#ix,netcom.com</a>, Tue 11 Aug 1998, 03:56 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00639" HREF="msg00639.html">[MUD-Dev] Re: META: List combat character and racial memory (was Re: Affordances and social method (Was: Re: Wire d Magazine...))</A></strong>,
kamikaze <a href="mailto:kamikaze#kuoi,asui.uidaho.edu">kamikaze#kuoi,asui.uidaho.edu</a>, Mon 10 Aug 1998, 20:50 GMT
<UL>
<LI><strong><A NAME="01057" HREF="msg01057.html">[MUD-Dev] Re: META: List combat character and racial memory (was Re: Affordances and social method (Was: Re: Wire d Magazine...))</A></strong>,
J C Lawrence <a href="mailto:claw#under,engr.sgi.com">claw#under,engr.sgi.com</a>, Thu 17 Sep 1998, 01:07 GMT
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</UL>
<UL>
<li><Possible follow-up(s)><br>
<LI><strong><A NAME="00645" HREF="msg00645.html">[MUD-Dev] Re: META: List combat character and racial memory (was Re: Affordances and social method (Was: Re: Wire d Magazine...))</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Tue 11 Aug 1998, 02:40 GMT
</LI>
</UL>
</LI>
<LI><strong><A NAME="00634" HREF="msg00634.html">[MUD-Dev] Rule #3</A></strong>,
S. Patrick Gallaty <a href="mailto:patrick#gric,com">patrick#gric,com</a>, Mon 10 Aug 1998, 17:27 GMT
</UL></BLOCKQUOTE>
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