From: Simon Riggs <simon@2ndquadrant.com>
To: Jignesh K. Shah <J.K.Shah@Sun.COM>
Cc: Heikki Linnakangas <heikki@enterprisedb.com>
Cc: Dimitri Fontaine <dfontaine@hi-media.com>
Cc: pgsql-performance@postgresql.org, Greg Smith <gsmith@gregsmith.com>
Subject: Re: Benchmark Data requested
Date: Tue, 05 Feb 2008 22:00:03 +0000
Message-ID: <1202248803.4252.895.camel@ebony.site> (raw)
In-Reply-To: <47A8CC1B.1050000@sun.com>
References: <1202150236.4252.521.camel@ebony.site>
<200802051506.51581.dfontaine@hi-media.com>
<1202221496.4252.680.camel@ebony.site>
<200802051815.25800.dfontaine@hi-media.com>
<47A8C1B9.10200@enterprisedb.com>
<47A8CC1B.1050000@sun.com>
On Tue, 2008-02-05 at 15:50 -0500, Jignesh K. Shah wrote:
> Is there a way such an operation can be spawned as a worker process?
> Generally during such loading - which most people will do during
> "offpeak" hours I expect additional CPU resources available. By
> delegating such additional work to worker processes, we should be able
> to capitalize on additional cores in the system.
>
> Even if it is a single core, the mere fact that the loading process will
> eventually wait for a read from the input file which cannot be
> non-blocking, the OS can timeslice it well for the second process to use
> those wait times for the index population work.
If Dimitri is working on parallel load, why bother?
--
Simon Riggs
2ndQuadrant http://www.2ndQuadrant.com
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-performance@postgresql.org
Cc: simon@2ndquadrant.com, J.K.Shah@Sun.COM, heikki@enterprisedb.com, dfontaine@hi-media.com, gsmith@gregsmith.com
Subject: Re: Benchmark Data requested
In-Reply-To: <1202248803.4252.895.camel@ebony.site>
* 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