Re: efficient function call

From	Victor Bazarov <v.bazarov@comcast.invalid>
Newsgroups	comp.lang.c++
Subject	Re: efficient function call
Date	2011-05-24 09:52 -0400
Organization	A noiseless patient Spider
Message-ID	<irgd7m$hdn$1@dont-email.me> (permalink)
References	<b77d43d1-0865-4c3d-9179-6cda0ff992c1@m40g2000vbt.googlegroups.com>

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On 5/24/2011 8:52 AM, hamze wrote:
> I had a small I/O job to do, with high frequency. it write 2 operand
> and read 1.
> previously I used macros to do this, but strange bugs specially in
> optimization process appeared.
> finally I decided to use functions instead of macros but function call
> overhead is much much bigger than job's time itself.
> what should I do to cape this problem? I mean an efficient function
> call?

Usually an inline function (a function declared 'inline' or a member of 
the class defined in the class definition itself, which makes it 
implicitly 'inline') can be optimized better by the compiler.

What makes you think the "function call overhead" is "much bigger"?  Did 
you measure it?  How?

V
-- 
I do not respond to top-posted replies, please don't ask

Thread

efficient function call hamze <hamze60@gmail.com> - 2011-05-24 05:52 -0700
  Re: efficient function call Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-24 09:52 -0400
    Re: efficient function call yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-05-24 18:28 +0000
    Re: efficient function call hamze <hamze60@gmail.com> - 2011-05-24 11:49 -0700
      Re: efficient function call Victor Bazarov <v.bazarov@comcast.invalid> - 2011-05-24 15:07 -0400
        Re: efficient function call hamze <hamze60@gmail.com> - 2011-05-25 00:37 -0700
          Re: efficient function call yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-05-25 10:38 +0000
            Re: efficient function call hamze <hamze60@gmail.com> - 2011-05-25 11:08 -0700
              Re: efficient function call Dombo <dombo@disposable.invalid> - 2011-05-25 21:38 +0200
              Re: efficient function call yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-05-26 11:44 +0000
                Re: efficient function call Edek <edek.pieITAKNIECZYTAM@gmail.com> - 2011-05-26 15:53 +0200
                Re: efficient function call yatremblay@bel1lin202.(none) (Yannick Tremblay) - 2011-05-27 08:31 +0000
                Re: efficient function call Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-05-27 13:45 +0000
                Re: efficient function call Edek <edek.pieITAKNIECZYTAM@gmail.com> - 2011-05-27 16:17 +0200
                Re: efficient function call Jorgen Grahn <grahn+nntp@snipabacken.se> - 2011-05-27 22:38 +0000
                Re: efficient function call Edek <edek.pieITAKNIECZYTAM@gmail.com> - 2011-05-27 16:39 +0200
      Re: efficient function call Joshua Maurice <joshuamaurice@gmail.com> - 2011-05-24 14:30 -0700
        Re: efficient function call hamze <hamze60@gmail.com> - 2011-05-25 00:39 -0700
      Re: efficient function call hamze <hamze60@gmail.com> - 2011-05-25 00:20 -0700

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