Re: Threaded PosgreSQL server

On Fri, Feb 08, 2002 at 11:17:51AM -0500, Tom Lane wrote:
> <mkscott(at)sacadia(dot)com> writes:
> > I can definitely take a stab aat it. Maybe I can make a test case with
> > some globals that are accessed often submit some patches to see what
> > people think. Can I send them to you?
>
> I have a sneaking feeling that what you are going to come up with is a
> multi-megabyte patch to convert CurrentMemoryContext into a non-global,
> which will require changing the parameter list of damn near every
> routine in the backend.

Sorry I not too careful watch this discussion, but if I see that
you are talking about PostgreSQL memory management and threads I have
have a note.

I and Dan Horak one year work on Mape project (http://mape.jcu.cz) and
we already have ported good postgres memory management into thread daemon.
It works very well and it's transparend solution -- you not must rewrite
routines that use MamoryContextSwitchTo or palloc() and other stuff,
because everything is based on thread-specific contexts (see man about
pthread_key_create). With this solution you not must change to much
things in current code.

Karel

--
Karel Zak <zakkr(at)zf(dot)jcu(dot)cz>
http://home.zf.jcu.cz/~zakkr/

C, PostgreSQL, PHP, WWW, http://docs.linux.cz, http://mape.jcu.cz