Re: Performance tests I did with FreeBSD, Linux and PostgreSQL

From: Bill Moran (wmoran_at_potentialtech.com)
Date: 08/27/03

  • Next message: Ivan Voras: "Re: Performance tests I did with FreeBSD, Linux and PostgreSQL" 
    Date: Wed, 27 Aug 2003 09:53:22 -0400
To: Alexander Leidinger <Alexander@Leidinger.net>

    Alexander Leidinger wrote:
    > On Tue, 26 Aug 2003 22:15:25 -0400
    > Bill Moran <wmoran@potentialtech.com> wrote:
    >
    >>http://www.potentialtech.com/wmoran/postgresql.php
    >
    > You don't talk about integrity on this page.

    Yes I do. It's in the conclusion section. It's not a major part of
    that document because I didn't test integrity, therefore I have no
    real conclusions beyond the fact that ext2 is not designed with
    integrity in mind.

    > You also present
    > only the ufs sync and async numbers, but not the noasync (default)
    > numbers, you should either present them or add a note why you don't
    > present them.

    You're right. I'll correct this.

    > About the "without debugging" description: did you really only remove
    > INVARIANTS? If yes: you also need to remove WITNESS.

    WITNESS is not enabled in the GENERIC kernel for 5.1-RELEASE, so there
    was no need to disable it.

    > I don't know if 5.1-RELEASE has malloc debugging enabled, but to be on
    > the safe side you should maybe do a "ln -s aj /etc/malloc.conf" before
    > you start PostgreSQL.

    I may look into that, but it seems like the more important thing to do
    is test 4.8 at this point.

    If you look at the times, these tests are time-consuming. I probably
    should have reduced the number of records involved, but if I do that
    now, I have to rerun all the tests ... 

    -- 
Bill Moran
Potential Technologies
http://www.potentialtech.com
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  • Next message: Ivan Voras: "Re: Performance tests I did with FreeBSD, Linux and PostgreSQL"