From: | "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com> |
---|---|
To: | Simon Riggs <simon(at)2ndquadrant(dot)com> |
Cc: | pgsql-hackers(at)postgresql(dot)org |
Subject: | Re: Quality and Performance |
Date: | 2007-11-27 18:08:22 |
Message-ID: | 20071127100822.46ff314d@commandprompt.com |
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Thread: | |
Lists: | pgsql-hackers |
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On Tue, 27 Nov 2007 17:32:49 +0000
Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
> Maybe we should give each Beta a name, such as "Initial Beta",
> "Performance Beta", "Usability Beta" as a way of encouraging folk to
> focus onto particular aspects of quality at what we consider to be
> appropriate times to do so. Not sure whether thats a good idea, but
> I'd love to hear about ways to include performance as one of the
> essential behaviours of PostgreSQL.
>
> Your thoughts are welcome,
Well I think that we do take performance into account. I agree
that we should *never* have a regression in performance from release
to release, which is what I believe has inspired this thread.
However if you look at a lot of the items that have gone into this
release they were all about performance:
HOT -- has a direct correlation to performance because without it
we vacuum more. Not only more, but in a lot of cases it resolves a
serious PostgreSQL limitation for high velocity tables.
Phantom Xid - less vacuuming
The sequential scan thing Jeff Davis did
The reduced size of the tuple headers
Sincerely,
Joshua D. Drake
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