Re: How many x86 instructions?

From	Robert Redelmeier <redelm@ev1.net.invalid>
Newsgroups	comp.sys.intel, comp.sys.ibm.pc.hardware.chips, alt.windows7.general
Subject	Re: How many x86 instructions?
Date	2014-02-25 00:35 +0000
Organization	Aioe.org NNTP Server
Message-ID	<legoh3$rmn$1@speranza.aioe.org> (permalink)
References	<53068f25$1@news.bnb-lp.com> <le69i5$2vq$1@news.albasani.net> <5306baeb$1@news.bnb-lp.com> <le7ng5$jfq$1@speranza.aioe.org> <MPG.2d7492ebb6c461989800@news.eternal-september.org>

Cross-posted to 3 groups.

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In comp.sys.ibm.pc.hardware.chips Jason <jason_warren@ieee.org> wrote in part:

> On Fri, 21 Feb 2014 14:23:01 +0000 (UTC) "Robert Redelmeier" 
> <redelm@ev1.net.invalid> wrote in article <le7ng5$jfq$
In comp.sys.ibm.pc.hardware.chips Yousuf Khan <bbbl67@spammenot.yahoo.com> wrote in part:
>>> But it goes to show why the age of compilers is well and
>>> truly upon us, there's no human way to keep track of these
>>> machine language instructions. Compilers just use a subset,
>>> and just repeat those instructions over and over again.
>> 
>> Hate to break it to you, but you are behind the times.  Compilers
>> are passe' -- "modern" systems use interpreters like JIT Java.
>> 
>> How else you you think Android gets Apps to run on the dogs-breakfast
>> of ARM processors out there?  It is [nearly] all interpreted Java.
>> So much so that Dell can get 'roid Apps to run on its x86 tablet! 
>> (AFAIK, iOS still runs compiled Apps prob'cuz Apple _hatez_ Oracle)
> 
> Compilers are NOT passe'

I feel quoted-out-of-context.  I was replying to Mr Khan (restored above)
that compiled languages were in turn being supplanted by interpreted.

> The performance penalty for interpreted languages is a large
> factor. It's fine in many situations - scripting languages and
> the like - and the modern processors are fast enough to make the
> performance hit tolerable.  Large-scale applications are still
> compiled and heavily optimized. Time is money.

I am well aware of the perfomance penalty of interpreted languages
(I once programmed in APL/360) and that compiling has been
preferable for HPC.  However, the differences between compilers
are reducing to the quality of their libraries, especially SIMD and
multi-threading.  The flexibility of interpreters might have value.


-- Robert

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How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-20 18:26 -0500
  Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 17:19 -0800
    Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 17:26 -0800
      Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 17:29 -0800
    Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 17:35 -0800
    Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-20 21:33 -0500
      Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 19:46 -0800
      Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 20:02 -0800
      Re: How many x86 instructions? Paul <nospam@needed.com> - 2014-02-20 23:21 -0500
        Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-20 21:23 -0800
        Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-21 00:55 -0500
          Re: How many x86 instructions? "Stanley Daniel de Liver" <admin@127.0.0.1> - 2014-04-25 10:54 +0100
            Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-04-25 20:58 -0400
              Re: How many x86 instructions? "Stanley Daniel de Liver" <admin@127.0.0.1> - 2014-04-26 11:29 +0100
      Re: How many x86 instructions? Robert Redelmeier <redelm@ev1.net.invalid> - 2014-02-21 14:23 +0000
        Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-21 14:15 -0500
          Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-21 11:34 -0800
            Re: How many x86 instructions? charlie <cdknospam@msn.com> - 2014-02-23 10:14 -0500
              Re: How many x86 instructions? "J. P. Gilliver (John)" <G6JPG@soft255.demon.co.uk> - 2014-02-23 16:37 +0000
                Re: How many x86 instructions? charlie <cdknospam@msn.com> - 2014-02-23 17:41 -0500
                Re: How many x86 instructions? BillW50 <BillW50@aol.kom> - 2014-02-23 17:15 -0600
                Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-23 19:30 -0500
                Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-24 12:11 -0800
                Re: How many x86 instructions? Jason <jason_warren@ieee.org> - 2014-02-24 18:41 -0500
                Re: How many x86 instructions? krw@attt.bizz - 2014-02-23 19:34 -0500
                Re: How many x86 instructions? charlie <cdknospam@msn.com> - 2014-02-24 04:42 -0500
                Re: How many x86 instructions? Gene E. Bloch <blochxxxx@someplace.invalid> - 2014-02-23 15:45 -0800
                Re: How many x86 instructions? BillW50 <BillW50@aol.kom> - 2014-02-23 17:49 -0600
          Re: How many x86 instructions? Char Jackson <none@none.invalid> - 2014-02-21 19:03 -0600
          Re: How many x86 instructions? Robert Redelmeier <redelm@ev1.net.invalid> - 2014-02-22 02:16 +0000
            Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-02-21 21:32 -0500
        Re: How many x86 instructions? Jason <jason_warren@ieee.org> - 2014-02-23 23:21 -0500
          Re: How many x86 instructions? krw@attt.bizz - 2014-02-24 13:02 -0500
            Re: How many x86 instructions? Jason <jason_warren@ieee.org> - 2014-02-24 13:38 -0500
              Re: How many x86 instructions? krw@attt.bizz - 2014-02-24 14:09 -0500
                Re: How many x86 instructions? Jason <jason_warren@ieee.org> - 2014-02-24 16:35 -0500
            Re: How many x86 instructions? pedro1492@lycos.com - 2014-03-28 19:50 -0700
              Re: How many x86 instructions? Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2014-04-02 09:47 -0400
          Re: How many x86 instructions? Robert Redelmeier <redelm@ev1.net.invalid> - 2014-02-25 00:35 +0000
            Re: How many x86 instructions? John Doe <jdoe@usenetlove.invalid> - 2014-04-25 03:33 +0000
  Re: How many x86 instructions? "Jim" <gtfo@stfu.invalid> - 2014-02-27 01:28 -0500

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