Re: vacuum message

On Mon, Sep 26, 2005 at 07:28:30PM +0530, Gourish Singbal wrote:
> Thats a good Idea.
> My output after full vaccum is :-
> INFO: free space map: 9 relations, 114736 pages stored; 76592 total pages
> needed
> DETAIL: Allocated FSM size: 1000 relations + 300000 pages = 1856 kB shared
> memory.
> VACUUM
> I just have a Question:
> Is the allocate pages 300000 okey ?. OR do i need to decrease it to 100000 ?
> regards

Downside: you're burning extra memory, to the tune of 6 bytes per page.
Downside: there's some additional overhead in maintaining a larger FSM
Upside: you have room to grow, as well as to accommodate occasional
bursts of update activity

Both downsides are pretty minor, I'd say just stick with what you've
got.
--
Jim C. Nasby, Sr. Engineering Consultant jnasby(at)pervasive(dot)com
Pervasive Software http://pervasive.com work: 512-231-6117
vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461