Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #22608

Re: FastCat 'performance'

From Sven Köhler <remove-sven.koehler@gmail.com>
Newsgroups comp.lang.java.programmer
Subject Re: FastCat 'performance'
Date 2013-02-28 05:19 +0100
Message-ID <ap843qFig73U1@mid.dfncis.de> (permalink)
References (5 earlier) <1rcs4eq420jj8.3menl13xfrpv.dlg@40tude.net> <kglnhr$nhj$1@news.albasani.net> <U8uXs.78289$KR.72653@newsfe27.iad> <89669b41-7a35-434e-90cd-57f7342ee70b@googlegroups.com> <1h6w3eeq8kfys$.kfwnlzg0axst.dlg@40tude.net>

Show all headers | View raw

Am 27.02.2013 22:51, schrieb Joerg Meier:
> On Wed, 27 Feb 2013 13:42:00 -0800 (PST), Lew wrote:
> 
>> How does it compare to using String +?
> 
> I didn't include + in my initial benchmark because I learned some time ago
> that both javac as well as HotSpot will just convert it to StringBuilder
> behind the scenes in most circumstances.

Java Compilers will substitute any + operations on String with calls to
StringBuffer (-source 1.3 and below) or StringBuilder (-source 1.4 or
above). I'm not aware, of any optimizations within the JVM (e.g.
Hotspot), but at byte-code level there is no such thing as a + operator
for strings.


Regards,
  Sven

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

simple StringBuilder proposal Roedy Green <see_website@mindprod.com.invalid> - 2013-02-26 03:53 -0800
  Re: simple StringBuilder proposal Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-02-26 15:15 +0000
    Re: simple StringBuilder proposal Roedy Green <see_website@mindprod.com.invalid> - 2013-02-27 10:25 -0800
    Re: simple StringBuilder proposal Roedy Green <see_website@mindprod.com.invalid> - 2013-02-27 10:30 -0800
      Re: simple StringBuilder proposal Andreas Leitgeb <avl@gamma.logic.tuwien.ac.at> - 2013-02-28 08:30 +0000
        Re: simple StringBuilder proposal markspace <markspace@nospam.nospam> - 2013-02-28 07:54 -0800
  Re: simple StringBuilder proposal markspace <markspace@nospam.nospam> - 2013-02-26 08:31 -0800
    Re: simple StringBuilder proposal Lew <lewbloch@gmail.com> - 2013-02-26 10:33 -0800
      Re: simple StringBuilder proposal markspace <markspace@nospam.nospam> - 2013-02-26 10:47 -0800
        Re: simple StringBuilder proposal Leif Roar Moldskred <leifm@dimnakorr.com> - 2013-02-26 13:29 -0600
          Re: simple StringBuilder proposal Peter Duniho <NpOeStPeAdM@NnOwSlPiAnMk.com> - 2013-02-26 12:08 -0800
        Re: simple StringBuilder proposal Lew <lewbloch@gmail.com> - 2013-02-26 13:32 -0800
          Re: simple StringBuilder proposal Roedy Green <see_website@mindprod.com.invalid> - 2013-02-27 10:33 -0800
        Re: simple StringBuilder proposal Robert Klemme <shortcutter@googlemail.com> - 2013-02-26 22:53 +0100
          Re: simple StringBuilder proposal markspace <markspace@nospam.nospam> - 2013-02-26 15:54 -0800
            Re: simple StringBuilder proposal Robert Klemme <shortcutter@googlemail.com> - 2013-03-01 07:35 +0100
      Re: simple StringBuilder proposal Roedy Green <see_website@mindprod.com.invalid> - 2013-02-27 10:31 -0800
        Re: simple StringBuilder proposal Sven Köhler <remove-sven.koehler@gmail.com> - 2013-02-28 05:14 +0100
  Re: simple StringBuilder proposal Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-02-26 09:41 -0800
  Re: simple StringBuilder proposal Jan Burse <janburse@fastmail.fm> - 2013-02-26 20:21 +0100
    Re: simple StringBuilder proposal Joerg Meier <joergmmeier@arcor.de> - 2013-02-26 23:07 +0100
      Re: simple StringBuilder proposal Jan Burse <janburse@fastmail.fm> - 2013-02-27 00:09 +0100
        Re: simple StringBuilder proposal Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-02-26 15:19 -0800
          Re: simple StringBuilder proposal Jim Janney <jjanney@shell.xmission.com> - 2013-02-27 09:34 -0700
            Re: simple StringBuilder proposal Jan Burse <janburse@fastmail.fm> - 2013-02-27 19:18 +0100
              Re: simple StringBuilder proposal Arne Vajhøj <arne@vajhoej.dk> - 2013-02-27 19:56 -0500
                Re: simple StringBuilder proposal Jan Burse <janburse@fastmail.fm> - 2013-02-28 10:19 +0100
                Re: simple StringBuilder proposal Arne Vajhøj <arne@vajhoej.dk> - 2013-02-28 08:16 -0500
                Re: simple StringBuilder proposal Jim Janney <jjanney@shell.xmission.com> - 2013-02-28 16:40 -0700
                Re: simple StringBuilder proposal Arne Vajhøj <arne@vajhoej.dk> - 2013-02-28 18:51 -0500
            Re: simple StringBuilder proposal Arne Vajhøj <arne@vajhoej.dk> - 2013-02-27 20:01 -0500
  Re: simple StringBuilder proposal Silvio <silvio@internet.com> - 2013-02-26 22:03 +0100
    Re: simple StringBuilder proposal Silvio <silvio@internet.com> - 2013-02-26 22:04 +0100
  Re: simple StringBuilder proposal Sven Köhler <remove-sven.koehler@gmail.com> - 2013-02-27 03:47 +0100
    FastCat 'performance' (was: simple StringBuilder proposal) Joerg Meier <joergmmeier@arcor.de> - 2013-02-27 18:16 +0100
      Re: FastCat 'performance' markspace <markspace@nospam.nospam> - 2013-02-27 09:58 -0800
        Re: FastCat 'performance' Jan Burse <janburse@fastmail.fm> - 2013-02-27 19:31 +0100
          Re: FastCat 'performance' Joerg Meier <joergmmeier@arcor.de> - 2013-02-27 20:00 +0100
            Re: FastCat 'performance' Jan Burse <janburse@fastmail.fm> - 2013-02-27 20:41 +0100
              Re: FastCat 'performance' Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-02-27 12:38 -0800
                Re: FastCat 'performance' Joerg Meier <joergmmeier@arcor.de> - 2013-02-27 21:58 +0100
                Re: FastCat 'performance' Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-02-27 13:32 -0800
                Re: FastCat 'performance' Lew <lewbloch@gmail.com> - 2013-02-27 13:42 -0800
                Re: FastCat 'performance' Lew <lewbloch@gmail.com> - 2013-02-27 13:44 -0800
                Re: FastCat 'performance' Joerg Meier <joergmmeier@arcor.de> - 2013-02-27 22:51 +0100
                Re: FastCat 'performance' Sven Köhler <remove-sven.koehler@gmail.com> - 2013-02-28 05:19 +0100
                Re: FastCat 'performance' Joerg Meier <joergmmeier@arcor.de> - 2013-02-28 13:09 +0100
                Re: FastCat 'performance' markspace <markspace@nospam.nospam> - 2013-02-27 13:57 -0800
                Re: FastCat 'performance' Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2013-02-27 15:23 -0800
                Re: FastCat 'performance' Arne Vajhøj <arne@vajhoej.dk> - 2013-02-27 18:52 -0500
                Re: FastCat 'performance' Sven Köhler <remove-sven.koehler@gmail.com> - 2013-03-01 17:26 +0100
      Re: FastCat 'performance' Sven Köhler <remove-sven.koehler@gmail.com> - 2013-02-27 21:00 +0100
      Re: FastCat 'performance' (was: simple StringBuilder proposal) Wanja Gayk <brixomatic@yahoo.com> - 2013-03-27 10:17 +0100

csiph-web