| From: | Rod Taylor <pg(at)rbt(dot)ca> |
|---|---|
| To: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
| Cc: | "Bort, Paul" <pbort(at)tmwsystems(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Compression and on-disk sorting |
| Date: | 2006-05-16 15:56:59 |
| Message-ID: | 1147795019.69863.303.camel@home |
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| Thread: | |
| Lists: | pgsql-hackers pgsql-patches |
On Tue, 2006-05-16 at 11:53 -0400, Andrew Dunstan wrote:
> Bort, Paul wrote:
> >> Compressed-filesystem extension (like e2compr, and I think either
> >> Fat or NTFS) can do that.
> >>
> >>
> >
> > Windows (NT/2000/XP) can compress individual directories and files under
> > NTFS; new files in a compressed directory are compressed by default.
> >
> > So if the 'spill-to-disk' all happened in its own specific directory, it
> > would be trivial to mark that directory for compression.
> >
> > I don't know enough Linux/Unix to know if it has similar capabilities.
> Or would want to ...
>
> I habitually turn off all compression on my Windows boxes, because it's
> a performance hit in my experience. Disk is cheap ...
Disk storage is cheap. Disk bandwidth or throughput is very expensive.
--
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