pg.ddx.io  pgsql-hackers@postgresql.org mailing list archive  
help / color / mirror / Atom feed
From: David Boreham <david_list@boreham.org>
To: pgsql-hackers@postgresql.org
Subject: Re: ice-broker scan thread
Date: Mon, 28 Nov 2005 21:09:55 -0700
Message-ID: <438BD493.3070507@boreham.org> (raw)
In-Reply-To: <Pine.LNX.4.58.0511291429330.18112@linuxworld.com.au>
References: <Pine.LNX.4.58.0511282217470.13586@josh.db>
	<Pine.LNX.4.58.0511291429330.18112@linuxworld.com.au>

Gavin Sherry wrote:

> MySQL, Oracle and others implement read-ahead threads to simulate async IO

I always believed that Oracle used async file I/O. Not that I've seen their
code, but I'm fairly sure they funded the addition of kernel aio to Linux
a few years back.

But....Oracle comes from a time long ago when threads and decent
filesystems didn't exist, so some of the things they do may not be 
appropriate
to add to a product that doesn't have them today.

Now...network async I/O...that'd be really useful in my world...





view thread (39+ messages)  latest in thread

Message-ID: <438BD493.3070507@boreham.org>
Permalink:  ../438BD493.3070507@boreham.org/
Also on:    postgresql.org/message-id/438BD493.3070507@boreham.org

 · 

reply

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Reply to all the recipients using the --to and --cc options:
  reply via email

  To: pgsql-hackers@postgresql.org
  Cc: david_list@boreham.org
  Subject: Re: ice-broker scan thread
  In-Reply-To: <438BD493.3070507@boreham.org>

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox