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<H1>[MUD-Dev] Re: OT: Java multithreading performance</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: OT: Java multithreading performance</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>: Sat, 16 May 98 09:11:28 MST</LI>
<LI><em>Reply-To</em>: <A HREF="mailto:mud-dev#kanga,nu">mud-dev#kanga,nu</A></LI>
<LI><em>Sender</em>: "Petidomo List Agent -- Kanga.Nu version" <<A HREF="mailto:petidomo#kanga,nu">petidomo#kanga,nu</A>></LI>
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<PRE>
[Vadim Tkachenko:]
:Test algorithm:
:
:record the time;
:fire the thread;
:wait until it's started;
:record the interval between the creation time and this moment;
:wait 100 ms;
:fire another;
:perform something in the current thread.
:P2/300, 128M running Linux & JDK 1.1.3 - no significant impact on other
:programs, except load very close to 1 (for obvious reasons)
I'm finally approaching that, except only 64M - am I likely to need more?
What happens if your delay is increased from 100ms to, say, 1s? (Other than
the experiment taking a lot more real-time.) I guess I'm wondering just
what is consuming the time - is it the JVM flapping around with 3400 threads,
or is it a lot of allocs and frees that are consuming the time? If the
objects for the threads are as simple as possible, doing an absolute minimum
of allocations/deallocations, how do the numbers change? How expensive is
the "perform something in the current thread"?
--
Chris Gray cg#ami-cg,GraySage.Edmonton.AB.CA
--
MUD-Dev: Advancing an unrealised future.
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<li><strong><A NAME="00640" HREF="msg00640.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>
<ul compact><li><em>From:</em> Vadim Tkachenko <vt#freehold,crocodile.org></li></ul>
<li><strong><A NAME="00638" HREF="msg00638.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>
<ul compact><li><em>From:</em> Vadim Tkachenko <vt#freehold,crocodile.org></li></ul>
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<ul><li>Thread context:
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<LI><STRONG>[MUD-Dev] Re: Combat Was Re: Leaving characters in play</STRONG>, <EM>(continued)</EM>
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<LI><strong><A NAME="00678" HREF="msg00678.html">[MUD-Dev] Re: Combat Was Re: Leaving characters in play</A></strong>,
Orion Henry <a href="mailto:orionZ#ix,netcom.com">orionZ#ix,netcom.com</a>, Tue 19 May 1998, 01:08 GMT
</LI>
<LI><strong><A NAME="00683" HREF="msg00683.html">[MUD-Dev] Re: Combat Was Re: Leaving characters in play</A></strong>,
Adam Wiggins <a href="mailto:adam#angel,com">adam#angel,com</a>, Tue 19 May 1998, 03:36 GMT
</LI>
<LI><strong><A NAME="00686" HREF="msg00686.html">[MUD-Dev] Re: Combat Was Re: Leaving characters in play</A></strong>,
J C Lawrence <a href="mailto:claw#greek,kanga.nu">claw#greek,kanga.nu</a>, Tue 19 May 1998, 04:28 GMT
</LI>
</ul>
</ul>
<LI><strong><A NAME="00681" HREF="msg00681.html">[MUD-Dev] Re: Combat Was Re: Leaving characters in play</A></strong>,
Adam Wiggins <a href="mailto:adam#angel,com">adam#angel,com</a>, Tue 19 May 1998, 02:50 GMT
</LI>
</ul>
</ul>
</LI>
<LI><strong><A NAME="00632" HREF="msg00632.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Sat 16 May 1998, 17:16 GMT
<UL>
<LI><strong><A NAME="00638" HREF="msg00638.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>,
Vadim Tkachenko <a href="mailto:vt#freehold,crocodile.org">vt#freehold,crocodile.org</a>, Sun 17 May 1998, 00:07 GMT
</LI>
<LI><strong><A NAME="00640" HREF="msg00640.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>,
Vadim Tkachenko <a href="mailto:vt#freehold,crocodile.org">vt#freehold,crocodile.org</a>, Sun 17 May 1998, 00:22 GMT
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<UL>
<li><Possible follow-up(s)><br>
<LI><strong><A NAME="00642" HREF="msg00642.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>,
Chris Gray <a href="mailto:cg#ami-cg,GraySage.Edmonton.AB.CA">cg#ami-cg,GraySage.Edmonton.AB.CA</a>, Sun 17 May 1998, 17:16 GMT
<UL>
<LI><strong><A NAME="00647" HREF="msg00647.html">[MUD-Dev] Re: OT: Java multithreading performance</A></strong>,
Vadim Tkachenko <a href="mailto:vt#freehold,crocodile.org">vt#freehold,crocodile.org</a>, Sun 17 May 1998, 21:11 GMT
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