[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Dramatic change in memory usage with version 9.1



-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On 12/21/2011 12:48 AM, Craig Ringer wrote:
> On 19/12/2011 11:04 PM, Rafael Martinez wrote:
>> Any ideas about why this dramatic change in memory usage when the only
>> thing apparently changed from our side is the postgres version?
>>
> It'd be interesting to know how much of your workload operates with
> SERIALIZABLE transactions, as the behavior of those has changed
> significantly in 9.1  and they _are_ more expensive in RAM terms now.
> 

Hello

As long as I know, all the databases are using the default, "read
committed".

We have almost 500 databases across all our servers, but we are only
dbas. We provide the infrastructure necessary to run this and help users
when they need it but we have not 100% control over how they are using
the databases ;-)

regards,
- -- 
 Rafael Martinez Guerrero
 Center for Information Technology
 University of Oslo, Norway

 PGP Public Key: http://folk.uio.no/rafael/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.14 (GNU/Linux)

iEYEARECAAYFAk7yHHAACgkQBhuKQurGihQz1gCdGJY6vk89lHKMldkYlkxOeJYJ
GSMAoKDRCRo1UpqlUgItzCm/XV9aCbb8
=7f6R
-----END PGP SIGNATURE-----

-- 
Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-performance


[Postgresql General]     [Postgresql PHP]     [PHP Users]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Home]     [Yosemite]

Powered by Linux