From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00 autolearn=ham
	autolearn_force=no version=3.4.4
X-Google-Thread: 103376,4fbd260da735f6f4
X-Google-Attributes: gid103376,public
X-Google-Language: ENGLISH,ASCII-7-bit
Path: 
 g2news1.google.com!news2.google.com!border1.nntp.dca.giganews.com!nntp.giganews.com!local01.nntp.dca.giganews.com!nntp.comcast.com!news.comcast.com.POSTED!not-for-mail
NNTP-Posting-Date: Sat, 05 May 2007 11:36:52 -0500
From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: Reading and writing a big file in Ada (GNAT) on Windows XP
References: <1178309074.426785.157110@o5g2000hsb.googlegroups.com>
X-Newsreader: Tom's custom newsreader
Message-ID: <8ZKdncPo05I5L6HbnZ2dnUVZ_qKqnZ2d@comcast.com>
Date: Sat, 05 May 2007 11:36:52 -0500
NNTP-Posting-Host: 24.6.140.189
X-Trace: 
 sv3-HpMqcwG5ByyPHhlM02mcYrbceLwclv+Z4KlO5bEUEq8ZKA269TpD29pnexX9SLKosqeOxzX08TB9vLR!4UmXijYtSmLwAHFjt4zoPR3G0AKLLDQaL4xUUoFur1myWLqBFwO1cilPSlhiYl2pSGsZ1RZBBtVj!DROXg4YGeaTHl4kWP7DB2dAhu9w0
X-Complaints-To: abuse@comcast.net
X-DMCA-Complaints-To: dmca@comcast.net
X-Abuse-and-DMCA-Info: Please be sure to forward a copy of ALL headers
X-Abuse-and-DMCA-Info: Otherwise we will be unable to process your complaint
 properly
X-Postfilter: 1.3.34
Xref: g2news1.google.com comp.lang.ada:15583
Date: 2007-05-05T11:36:52-05:00
List-Id: <comp.lang.ada>

>Yeah, but I'd assume that a high proportion of uses of Index would use
>...
> But yes, these days I need to be more careful about my assumptions about
> what kinds of machine instructions will execute the fastest.
  Different versions of the same processor architecture (ie, compiler
target) are different, different uses of Index have different statistics,
with multicore it may be worth splitting up the job, .....
Sometimes it's worth rolling your own instead of using the library routine.