Re: Java tops C as most popular language in developer index

From	blmblm@myrealbox.com <blmblm.myrealbox@gmail.com>
Newsgroups	comp.lang.c
Subject	Re: Java tops C as most popular language in developer index
Date	2013-08-17 20:48 +0000
Organization	None
Message-ID	<b7a5slFcaq7U2@mid.individual.net> (permalink)
References	<kugb9m$ups$1@dont-email.me> <kukci9$7o1$1@dont-email.me> <b763r3Fg6soU1@mid.individual.net> <kullhv$fqi$1@dont-email.me>

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In article <kullhv$fqi$1@dont-email.me>, Lynn McGuire  <lmc@winsim.com> wrote:
> >> Nope, the code written since 2000 is true C++
> >> and uses polymorphism, inheritance, operator
> >> overloading and virtual methods to the extreme.
> >> That is about 400K lines of C++.  Really works
> >> well and is fast to boot.
> >
> > What's the betting it'll run like a three legged dog once it's converted to Java?
> 
> Just the download time for the javascript worries
> me.  We will have as much or more javascript code
> than gmail.
> 
> Much of the modern C++ code used to be smalltalk.
> That ran like a two legged dog.  On a good day.
> 
> >> BTW, our calculation engine is 750K lines of F77,
> >> 5K lines of C and 5K lines of C++.
> >
> > That would be even more interesting as Java..
> 
> Not gonna happen.  That will sit on a calculation
> server somewhere.  It will be F77 or C.  We need
> the speed of compiled code.  I've got calculation
> jobs that I can kick off that take hours to run.
> 

Are you under the impression that Java Virtual Machines are (still)
strictly interpreters of byte code?  I think that has not been
true for quite a while; most of the ones I know about compile
at runtime to native code.  Some years ago a colleague did some
experiments comparing running times of C++ and Java versions of
one of his applications, and while the C++ version was faster, the
difference was less than the "Java is slow!" people might think.
(Right, that means I don't really remember and am too lazy to try
to find out.  I want to say maybe 5-10% increase in running time,
but that might be wrong.  Whether a 10% increase is a big deal --
YMMV maybe.)

Now, if the Java gets turned into JavaScript, which is interpreted
by a browser ....  I wouldn't know about that [*].  But I'm fairly
sure actual Java is not the performance disaster it was early on.

[*] Indeed I didn't know until it was mentioned here that this
was possible, and I'm speculating about whether this is somebody's
idea of a workaround for the embarrassing string of security flaws
in a language that was intended at least in part to allow safe
execution of code from possibly-not-trustworthy sources.

Okay, okay, off topic here.  I'll (try to) pipe down now.

-- 
B. L. Massingill
ObDisclaimer:  I don't speak for my employers; they return the favor.

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Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 11:29 -0500
  Re: Java tops C as most popular language in developer index Mark Storkamp <mstorkamp@yahoo.com> - 2013-08-14 11:49 -0500
    Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 12:05 -0500
      Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-14 13:37 -0400
        Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-14 18:26 +0000
          Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-14 15:13 -0400
            Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-14 13:02 -0700
        Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 15:30 -0500
      Re: Java tops C as most popular language in developer index Robert Wessel <robertwessel2@yahoo.com> - 2013-08-14 12:56 -0500
    Re: Java tops C as most popular language in developer index Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-08-15 17:02 +0300
      Re: Java tops C as most popular language in developer index Ike Naar <ike@iceland.freeshell.org> - 2013-08-15 19:32 +0000
  Re: Java tops C as most popular language in developer index Jens Stuckelberger <Jens_Stuckelberger@nowhere.net> - 2013-08-14 16:55 +0000
  Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-14 17:16 +0000
    Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 12:20 -0500
      Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-14 18:33 +0000
        Re: Java tops C as most popular language in developer index Jorgen Grahn <grahn+nntp@snipabacken.se> - 2013-08-14 19:59 +0000
          Re: Java tops C as most popular language in developer index blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2013-08-17 20:43 +0000
            Re: Java tops C as most popular language in developer index Ike Naar <ike@iceland.freeshell.org> - 2013-08-18 09:33 +0000
              Re: Java tops C as most popular language in developer index blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2013-08-18 21:16 +0000
    Re: Java tops C as most popular language in developer index Jorgen Grahn <grahn+nntp@snipabacken.se> - 2013-08-14 20:06 +0000
  Re: Java tops C as most popular language in developer index Melzzzzz <mel@zzzzz.invalid> - 2013-08-14 19:35 +0200
    Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 15:34 -0500
  Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-14 13:42 -0400
  Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-14 10:54 -0700
    Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-14 15:38 -0500
  Re: Java tops C as most popular language in developer index Nobody <nobody@nowhere.com> - 2013-08-15 05:45 +0100
  Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-15 14:56 -0500
    Re: Java tops C as most popular language in developer index Ike Naar <ike@iceland.freeshell.org> - 2013-08-15 20:29 +0000
      Re: Java tops C as most popular language in developer index Keith Thompson <kst-u@mib.org> - 2013-08-15 13:42 -0700
      Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-15 20:05 -0500
        Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-16 02:17 +0000
          Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-16 00:15 -0500
            Re: Java tops C as most popular language in developer index Ian Collins <ian-news@hotmail.com> - 2013-08-16 19:48 +1200
              Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-16 11:55 -0500
                Re: Java tops C as most popular language in developer index blmblm@myrealbox.com <blmblm.myrealbox@gmail.com> - 2013-08-17 20:48 +0000
                Re: Java tops C as most popular language in developer index Robert Wessel <robertwessel2@yahoo.com> - 2013-08-18 22:32 -0500
                Re: Java tops C as most popular language in developer index Ian Collins <ian-news@hotmail.com> - 2013-08-19 15:40 +1200
                Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-19 11:45 -0500
                Re: Java tops C as most popular language in developer index Robert Wessel <robertwessel2@yahoo.com> - 2013-08-19 12:56 -0500
                Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-19 14:16 -0500
                Re: Java tops C as most popular language in developer index Robert Wessel <robertwessel2@yahoo.com> - 2013-08-19 16:43 -0500
                Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-20 11:12 -0500
                Re: Java tops C as most popular language in developer index Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-08-22 16:12 +0300
                Re: Java tops C as most popular language in developer index Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-08-20 11:49 +0300
                Re: Java tops C as most popular language in developer index Robert Wessel <robertwessel2@yahoo.com> - 2013-08-20 04:52 -0500
                Re: Java tops C as most popular language in developer index Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-08-22 14:46 +0300
                Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-22 11:02 -0500
                [OT] Javascript performance (was: Java tops C as most popular language in developer index) Noob <root@127.0.0.1> - 2013-08-20 11:47 +0200
                Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-19 13:50 -0700
                Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-19 17:11 -0400
                Re: Java tops C as most popular language in developer index Phil Carmody <thefatphil_demunged@yahoo.co.uk> - 2013-08-20 12:05 +0300
                Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-19 22:06 +0000
                Re: Java tops C as most popular language in developer index Noob <root@127.0.0.1> - 2013-08-20 11:56 +0200
                Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-21 03:41 -0700
                Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-19 02:05 -0700
                Re: [OT] Java tops C as most popular language in developer index Ian Collins <ian-news@hotmail.com> - 2013-08-19 21:10 +1200
                Re: Java tops C as most popular language in developer index Keith Thompson <kst-u@mib.org> - 2013-08-19 08:24 -0700
                Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-19 11:47 -0500
        Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-16 07:00 -0400
          Re: Java tops C as most popular language in developer index Malcolm McLean <malcolm.mclean5@btinternet.com> - 2013-08-16 04:07 -0700
            Re: Java tops C as most popular language in developer index James Kuyper <jameskuyper@verizon.net> - 2013-08-16 08:07 -0400
              Re: Java tops C as most popular language in developer index glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2013-08-16 16:44 +0000
              Re: Java tops C as most popular language in developer index Lynn McGuire <lmc@winsim.com> - 2013-08-16 11:51 -0500

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