Re: Very long deletion time on a 200 GB database

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От
Shaun Thomas
Тема
Re: Very long deletion time on a 200 GB database
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4F479FDE.1070509@peak6.com
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Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Glyn Astill <glynastill@yahoo.co.uk>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Samuel Gendler <sgendler@ideasculptor.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database lephongvu <luoidocsach@gmail.com>
Re: Very long deletion time on a 200 GB database Claudio Freire <klaussfreire@gmail.com>
Re: Very long deletion time on a 200 GB database Tom Lane <tgl@sss.pgh.pa.us>
Re: Very long deletion time on a 200 GB database Richard Huxton <dev@archonet.com>
Re: Very long deletion time on a 200 GB database Steve Crawford <scrawford@pinpointresearch.com>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database Jesper Krogh <jesper@krogh.cc>
Re: Very long deletion time on a 200 GB database Steve Crawford <scrawford@pinpointresearch.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database Andrew Dunstan <andrew@dunslane.net>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database Claudio Freire <klaussfreire@gmail.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database Lew <noone@lewscanon.com>
Re: Very long deletion time on a 200 GB database Samuel Gendler <sgendler@ideasculptor.com>
Re: Very long deletion time on a 200 GB database Scott Marlowe <scott.marlowe@gmail.com>
Re: Very long deletion time on a 200 GB database David Kerr <dmk@mr-paradox.net>
Re: Very long deletion time on a 200 GB database Gavin Flower <GavinFlower@archidevsys.co.nz>
Re: Very long deletion time on a 200 GB database Claudio Freire <klaussfreire@gmail.com>
Re: Very long deletion time on a 200 GB database Marcin Mańk <marcin.mank@gmail.com>
Re: Very long deletion time on a 200 GB database Andrew Dunstan <andrew@dunslane.net>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
Re: Very long deletion time on a 200 GB database "ktm@rice.edu" <ktm@rice.edu>
Re: Very long deletion time on a 200 GB database Lew <noone@lewscanon.com>
Re: Very long deletion time on a 200 GB database Greg Spiegelberg <gspiegelberg@gmail.com>
Re: Very long deletion time on a 200 GB database Shaun Thomas <sthomas@peak6.com>
Re: Very long deletion time on a 200 GB database Andy Colson <andy@squeakycode.net>
Re: Very long deletion time on a 200 GB database Greg Spiegelberg <gspiegelberg@gmail.com>
Re: Very long deletion time on a 200 GB database Tom Lane <tgl@sss.pgh.pa.us>
Re: Very long deletion time on a 200 GB database Jeff Janes <jeff.janes@gmail.com>
Re: Very long deletion time on a 200 GB database "Reuven M. Lerner" <reuven@lerner.co.il>
On 02/24/2012 12:39 AM, Reuven M. Lerner wrote:

> - CPU is virtually idle when running the deletes, using about 1% of
> CPU

I think you found your problem.

See if you can get the Windows admins to give you some info on how busy 
the disks are (percent utilization, IOPS, something) the next time you 
try this. Increasing your memory settings may help, but a 1% CPU usage 
usually suggests it's waiting for disk blocks to be read before it can 
actually do something.

-- 
Shaun Thomas
OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604
312-444-8534
sthomas@peak6.com

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