Re: [GENERAL] Hardware optimising - Mailing list pgsql-general

From Bruce Momjian
Subject Re: [GENERAL] Hardware optimising
Date
Msg-id 199908270206.WAA07551@candle.pha.pa.us
Whole thread Raw
In response to Re: [GENERAL] Hardware optimising  (Mike Mascari <mascarim@yahoo.com>)
List pgsql-general
> P.S. From previous posts, I'm starting to think that
> there is a VAST misconception that a single-threaded
> database engine (which is what Oracle was until some
> version 7 releases, I believe, called Oracle MTS
> appeared) can only handle ONE query at a time, and
> does
> not exec() a child process for each connection.
> Someone ought to start the propoganda of claiming
> multi-threaded DBMS as "single process" servers.

Yes, I am totally unsure how this gets confused by people.  I am going
to put it int the FAQ.

Yes, and I agree that most multi-threaded DBMS are "single process",
which can't make use if multiple cpus, except on some very special OS's
that allow threads to move between cpus, sometimes called kernel
threads, I think, but I am not sure on that.

--
  Bruce Momjian                        |  http://www.op.net/~candle
  maillist@candle.pha.pa.us            |  (610) 853-3000
  +  If your life is a hard drive,     |  830 Blythe Avenue
  +  Christ can be your backup.        |  Drexel Hill, Pennsylvania 19026

pgsql-general by date:

Previous
From: Andy Lewis
Date:
Subject: Re: [GENERAL] Hardware optimising
Next
From: Bruce Momjian
Date:
Subject: Re: [GENERAL] Hardware optimising