Re: help with pg_dump timings

On Fri, Oct 14, 2005 at 04:56:27PM +0200, Arnau Rebassa Villalonga wrote:
> Hi,
>
> >Also, what -Z compression level equals the compression of gzip? I've
> >played with -Z9, but it seems to compress better than gzip (but takes a
> >bit longer).
>
> I haven't done timing measurements but what I have noticed is that if
> you use the custom format and after you try to compress the resultant
> file, the size is not reduced that much, so it's not worth to spend time
> compressing.

I haven't read the source, but I believe that by default custom format
dumps are compressed at zlib level 6. So if you want to compress them
yourself, you should sepcify -Z0.
--
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