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Re: SSI patch version 14

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Markus Wanner <markus(at)bluegap(dot)ch>
Cc: David Fetter <david(at)fetter(dot)org>, Dan Ports <drkp(at)csail(dot)mit(dot)edu>, Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Heikki Linnakangas <heikki(dot)linnakangas(at)enterprisedb(dot)com>, simon(at)2ndquadrant(dot)com, pgsql-hackers(at)postgresql(dot)org
Subject: Re: SSI patch version 14
Date: 2011-02-09 17:25:02
Message-ID: AANLkTi=reTQNeUEn8u1eNkTQAPJHyK66gVhgwg=5GUG7@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackers
On Wed, Feb 9, 2011 at 10:38 AM, Markus Wanner <markus(at)bluegap(dot)ch> wrote:
> On 02/09/2011 04:16 PM, David Fetter wrote:
>> On Tue, Feb 08, 2011 at 09:09:48PM -0500, Robert Haas wrote:
>>> Frankly, I think this is an example of how our current shared memory
>>> model is a piece of garbage.
>>
>> What other model(s) might work better?
>
> Thread based, dynamically allocatable and resizeable shared memory, as
> most other projects and developers use, for example.

Or less invasively, a small sysv shm to prevent the double-postmaster
problem, and allocate the rest using POSIX shm.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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