Groups > comp.lang.java.programmer > #3806

Re: JNA performance

From	Lew <noone@lewscanon.com>
Newsgroups	comp.lang.java.programmer
Subject	Re: JNA performance
Date	2011-05-08 07:58 -0400
Organization	albasani.net
Message-ID	<iq60hd$9i5$1@news.albasani.net> (permalink)
References	<tqmdnUiqqro_tlvQnZ2dnUVZ_tmdnZ2d@westnet.com.au>

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On 05/08/2011 01:35 AM, Qu0ll wrote:
> I am about to do some Java programming involving native libraries so can
> anyone comment on their experiences with the performance of JNA? I note the
> following (somewhat concerning) statement from the JNA website:
>
> "While some attention is paid to performance, correctness and ease of use take
> priority."
>
> I guess there's little point in using it if it sucks performance-wise even if
> it is "easy to use"! I have never used JNI either but it looks not so "easy to
> use" (i.e. requires some C programming).

Using JNA or JNI for performance is likely to be a fool's errand.  What is the 
performance of your non-JNA approach?  How much better does it need to be? 
Why do you think that calls to non-native libraries are the bottleneck?

Also, where do you get the notion that JNA "sucks performance-wise"?  The JNA 
folks claim that "some attention is paid to performance".  That indicates /a 
priori/ that performance is likely not to "suck".  Therefore any conclusion 
you made that they failed in that attention is based on measurement.  What 
measurements did you perform, what were the results, and what do you need the 
results to be?

-- 
Lew
Honi soit qui mal y pense.
http://upload.wikimedia.org/wikipedia/commons/c/cf/Friz.jpg

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Thread

JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-08 15:35 +1000
  Re: JNA performance Knute Johnson <nospam@knutejohnson.com> - 2011-05-07 22:48 -0700
    Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-08 16:03 +1000
      Re: JNA performance Knute Johnson <nospam@knutejohnson.com> - 2011-05-08 09:54 -0700
    Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-08 13:26 -0700
      Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 08:44 +1000
        Re: JNA performance Jeff Higgins <jeff@invalid.invalid> - 2011-05-08 21:17 -0400
        Re: JNA performance Jeff Higgins <jeff@invalid.invalid> - 2011-05-08 21:20 -0400
          Re: JNA performance Jeff Higgins <jeff@invalid.invalid> - 2011-05-08 21:24 -0400
            Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 13:39 +1000
              Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-08 21:54 -0700
                Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 15:47 +1000
                Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-08 23:26 -0700
                Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 17:07 +1000
                Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-10 12:44 -0700
        Re: JNA performance Tom Anderson <twic@urchin.earth.li> - 2011-05-09 18:21 +0100
          Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-09 13:05 -0700
            Re: JNA performance Tom Anderson <twic@urchin.earth.li> - 2011-05-09 21:09 +0100
              Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-09 17:58 -0700
  Re: JNA performance Roedy Green <see_website@mindprod.com.invalid> - 2011-05-07 23:25 -0700
    Re: JNA performance "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-08 16:32 +1000
    Re: JNA performance Steve Sobol <sjsobol@JustThe.net> - 2011-05-08 13:27 -0700
  Re: JNA performance Lew <noone@lewscanon.com> - 2011-05-08 07:58 -0400
    Re: JNA performance Roedy Green <see_website@mindprod.com.invalid> - 2011-05-08 19:17 -0700
      Re: JNA performance Lew <noone@lewscanon.com> - 2011-05-09 08:36 -0400
        Re: JNA performance Roedy Green <see_website@mindprod.com.invalid> - 2011-05-09 06:34 -0700
          Re: JNA performance Lew <noone@lewscanon.com> - 2011-05-09 09:57 -0400
  O/T: Tag lines, or sigs (Was: JNA performance) Lew <noone@lewscanon.com> - 2011-05-08 08:02 -0400
    Re: O/T: Tag lines, or sigs (Was: JNA performance) Arved Sandstrom <asandstrom3minus1@eastlink.ca> - 2011-05-08 11:24 -0300
      Re: O/T: Tag lines, or sigs (Was: JNA performance) Lew <noone@lewscanon.com> - 2011-05-08 12:35 -0400
        Re: O/T: Tag lines, or sigs (Was: JNA performance) Knute Johnson <nospam@knutejohnson.com> - 2011-05-08 09:54 -0700
      Re: Tag lines, or sigs (Was: JNA performance) "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 03:37 +1000
      Re: O/T: Tag lines, or sigs (Was: JNA performance) Lawrence D'Oliveiro <ldo@geek-central.gen.new_zealand> - 2011-05-09 15:50 +1200
        Re: O/T: Tag lines, or sigs (Was: JNA performance) Lew <noone@lewscanon.com> - 2011-05-09 08:36 -0400
    Re: O/T: Tag lines, or sigs (Was: JNA performance) "Qu0ll" <Qu0llSixFour@gmail.com> - 2011-05-09 03:37 +1000
      Re: O/T: Tag lines, or sigs (Was: JNA performance) Daniele Futtorovic <da.futt.news@laposte-dot-net.invalid> - 2011-05-08 19:55 +0200
        Re: O/T: Tag lines, or sigs (Was: JNA performance) Martin Gregorie <martin@address-in-sig.invalid> - 2011-05-08 19:30 +0000
          Re: O/T: Tag lines, or sigs (Was: JNA performance) Steve Sobol <sjsobol@JustThe.net> - 2011-05-08 13:28 -0700
  Re: JNA performance Jim Janney <jjanney@shell.xmission.com> - 2011-05-09 08:54 -0600

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