Message-ID: <48F63230.1070208@tocr.com>
Date: Wed, 15 Oct 2008 14:10:56 -0400
From: "Matthew T. O'Connor" <matthew@tocr.com>
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To: Tom Lane <tgl@sss.pgh.pa.us>
CC: Greg Smith <gsmith@gregsmith.com>, Gregory Stark <stark@enterprisedb.com>,
	Kevin Murphy <murphy@genome.chop.edu>, pgsql-general@postgresql.org
Subject: Re: Drupal and PostgreSQL - performance issues?
References: <2434A118-CEFA-43A9-BA88-006EC1F80326@hoegh.org>
	<200810122214.53558.uwe@oss4u.com>
	<20081013090228.248a665f@dawn.webthatworks.it>
	<e7e0a2570810131945x1bbf10b8r67c0ac2a340b436f@mail.gmail.com>
	<20081014114011.0ebe495a@dawn.webthatworks.it>
	<3250B5B6-B507-4E79-BAF0-E98B73E9FED9@hoegh.org>
	<Pine.GSO.4.64.0810140942010.28645@westnet.com>
	<48F4B3C2.1050805@genome.chop.edu>
	<Pine.GSO.4.64.0810141747240.5472@westnet.com>
	<87od1mbpsv.fsf@oxford.xeocode.com>
	<Pine.GSO.4.64.0810150149220.27530@westnet.com>
	<22702.1224087183@sss.pgh.pa.us>
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Tom Lane wrote:
> I think the subtext there is that the Linux kernel hackers hate the SysV
> IPC APIs and wish they'd go away.  They are presently constrained from
> removing 'em by their desire for POSIX compliance, but you won't get
> them to make any changes that might result in those APIs becoming more
> widely used :-(
>
> Mind you, I find the SysV APIs uselessly baroque too, but there is one
> feature that we have to have that is not in mmap(): the ability to
> detect other processes attached to a shmem block.

Didn't we solve this problem on Windows?  Can we do a similar thing in 
Unix and get ride of the SysV stuff?