Re: SELECT INTO large FKyed table is slow

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

 



On Wed, Dec 01, 2010 at 12:15:19PM -0500, Mladen Gogala wrote:
> Mario Splivalo wrote:
>> I'll try what Pierre suggested, on whole new filesystem. This one did get 
>> quite filled with thousands of files that I deleted while the database was 
>> working.
>>
>> 	Mario
>>   
>
> Yes, that is a good idea. That's the reason why we need a defragmentation 
> tool on Linux. Unfortunately, the only file system that currently has a 
> decent defragmentation tool is XFS and that is a paid option, at least with 
> Red Hat. Greg Smith has recently posted a wonderful review of PostgreSQL on 
> various file systems:
>
> http://blog.2ndquadrant.com/en/2010/04/the-return-of-xfs-on-linux.html
>
> There is a operating system which comes with a very decent extent based 
> file system and a defragmentation tool, included in the OS. The file system 
> is called "NTFS" and company is in the land of Redmond, WA where the 
> shadows lie. One OS to rule them all...
>
> -- 
> Mladen Gogala Sr. Oracle DBA
> 1500 Broadway
> New York, NY 10036
> (212) 329-5251
> http://www.vmsinfo.com The Leader in Integrated Media Intelligence 
> Solutions
>

Redhat6 comes with ext4 which is an extent based filesystem with
decent performance.

Ken

-- 
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]     [Yosemite]

  Powered by Linux