Re: Bufer cache replacement LRU algorithm?

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

 



Mladen,

You would need to check the mailing lists. The release notes
have it as being a clock sweep algorithm starting in version
8. Then additional changes were added to eliminate the cache
blowout caused by a sequential scan and by vacuum/autovacuum.
I do not believe that there are any parameters available other
than total size of the pool and whether sequential scans are
synchronized.

Regards,
Ken

On Wed, Nov 03, 2010 at 12:35:33PM -0400, Mladen Gogala wrote:
> Where can I find the documentation describing the buffer replacement 
> policy? Are there any parameters governing the page replacement policy?
>
> -- 
> 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
>
>
>
>
> -- 
> Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-performance
>

-- 
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