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-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,9d303864ae4c70ad
X-Google-Attributes: gid103376,public
X-Google-ArrivalTime: 2004-04-17 04:42:30 PST
Path: archiver1.google.com!postnews1.google.com!not-for-mail
From: wojtek@power.com.pl (Wojtek Narczynski)
Newsgroups: comp.lang.ada
Subject: Re: Reprise: 'in out' parameters for functions
Date: 17 Apr 2004 04:42:29 -0700
Organization: http://groups.google.com
Message-ID: <5ad0dd8a.0404170342.6a916b9b@posting.google.com>
References: <u4qrv5hwr.fsf@acm.org>
 <5ad0dd8a.0404090512.15af2908@posting.google.com>
 <c56ib6$5ha$1@a1-hrz.uni-duisburg.de>
 <5ad0dd8a.0404091828.6e79bb4e@posting.google.com>
 <8Oadneu6eY9pweDdRVn-hA@comcast.com>
 <5ad0dd8a.0404151752.4f598e1a@posting.google.com>
 <VvadnXNuIcYs7OLdRVn-hg@comcast.com>
 <5ad0dd8a.0404160338.5a1c9116@posting.google.com>
 <1080a21p0nn482f@corp.supernews.com>
 <5ad0dd8a.0404161415.220cce54@posting.google.com>
 <-9qdnUKOH_DVGx3dRVn-ug@comcast.com>
NNTP-Posting-Host: 83.27.41.129
Content-Type: text/plain; charset=ISO-8859-1
Content-Transfer-Encoding: 8bit
X-Trace: posting.google.com 1082202150 7041 127.0.0.1 (17 Apr 2004 11:42:30
 GMT)
X-Complaints-To: groups-abuse@google.com
NNTP-Posting-Date: Sat, 17 Apr 2004 11:42:30 +0000 (UTC)
Xref: archiver1.google.com comp.lang.ada:7250
Date: 2004-04-17T04:42:29-07:00
List-Id: <comp.lang.ada>

Robert,

> What is important, in real cases, is memory management.  Having any part 
> of a data structure paged to disk can kill performance. (The data 
> structure now, not the actual data.)

Another problem of this kind is that the lock owner thread can get
preempted by the operating system. This is more frequent, but less
devastating than a page fault.

> (Complex data dictionaries are all right for the theoretical part of design,
> but when it comes to practice, you want to merge data nodes to the maximum
> extent possible.)

Okay, practitioners speaking, so I will just listen. Should I ask for
a refunt for "Transaction Processing: Concept and Techniques" by
J.Gray & A. Reuter? :-)


Regards,
Wojtek