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| From | Jan Burse <janburse@fastmail.fm> |
| Newsgroups | comp.lang.java.programmer |
| Subject | Re: Pattern suggestion |
| Date | Mon, 16 Apr 2012 00:37:44 +0200 |
| Organization | albasani.net |
| Lines | 38 |
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Jan Burse schrieb:
>
> - Check whether the analysers are all equally fast,
> otherwise the least performant analyser will
> delay the processing, even with some queues,
> since they will be limited in size.
Assume you have 2 analyzers, one slow and one
fast. And 4 cores.
Load junks of 1GB into memory, split the 1GB into
two 500MB. And let:
1st 500MB slow analyzer with core 1 affinity
2nd 500MB slow analyzer with core 2 affinity
1GB fast analyzer with core 3 affinity
Or let the 2nd slow analyer start at 5GB from the
beginning.
Bye
BTW: Last time I looked at shootout:
http://shootout.alioth.debian.org/
many of the problems now have parallel
implementations. The test maschine is 4 core.
If you do a little calculation for the Java
results, you will see that they have an average
core utilization of a factor of 2.6, similar
to the Erlang results.
Maybe you can pick up some ideas of how to
code parallel solutions from there. Otherwise
there is a nice book by Doug Lea:
Concurrent Programming in Java™: Design Principles and Pattern
http://www.amazon.com/Concurrent-Programming-Java-Principles-Pattern/dp/0201310090
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Pattern suggestion FrenKy <frenky__nn@gmail.com> - 2012-04-15 16:11 +0200
Re: Pattern suggestion Rui Maciel <rui.maciel@gmail.com> - 2012-04-15 16:04 +0100
Re: Pattern suggestion Lew <noone@lewscanon.com> - 2012-04-15 08:15 -0700
Re: Pattern suggestion markspace <-@.> - 2012-04-15 08:17 -0700
Re: Pattern suggestion Arne Vajhøj <arne@vajhoej.dk> - 2012-04-15 22:01 -0400
Re: Pattern suggestion Jan Burse <janburse@fastmail.fm> - 2012-04-15 17:41 +0200
Re: Pattern suggestion Jan Burse <janburse@fastmail.fm> - 2012-04-16 00:37 +0200
Re: Pattern suggestion Patricia Shanahan <pats@acm.org> - 2012-04-15 09:17 -0700
Re: Pattern suggestion Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2012-04-15 13:57 -0300
Re: Pattern suggestion Martin Gregorie <martin@address-in-sig.invalid> - 2012-04-15 19:56 +0000
Re: Pattern suggestion Robert Klemme <shortcutter@googlemail.com> - 2012-04-16 09:55 +0200
Re: Pattern suggestion Arne Vajhøj <arne@vajhoej.dk> - 2012-04-15 21:58 -0400
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