Skip site navigation (1) Skip section navigation (2)

Re: Page Checksums + Double Writes

From: Rob Wultsch <wultsch(at)gmail(dot)com>
To: David Fetter <david(at)fetter(dot)org>
Cc: PG Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Page Checksums + Double Writes
Date: 2011-12-22 00:18:33
Message-ID: (view raw or whole thread)
Lists: pgsql-hackers
On Wed, Dec 21, 2011 at 1:59 PM, David Fetter <david(at)fetter(dot)org> wrote:
> One of the things VMware is working on is double writes, per previous
> discussions of how, for example, InnoDB does things.

The world is moving to flash, and the lifetime of flash is measured
writes. Potentially doubling the number of writes is potentially
halving the life of the flash.

Something to think about...

Rob Wultsch

In response to


pgsql-hackers by date

Next:From: Robert HaasDate: 2011-12-22 00:28:53
Subject: Re: CLOG contention
Previous:From: Simon RiggsDate: 2011-12-22 00:06:49
Subject: Re: Page Checksums + Double Writes

Privacy Policy | About PostgreSQL
Copyright © 1996-2015 The PostgreSQL Global Development Group