Luke Lonergan wrote:
> Alvaro,
>
> On 4/5/06 2:48 PM, "Alvaro Herrera" <alvherre@commandprompt.com> wrote:
>
> > This essentially means stopping all bgwriter activity, thereby deferring
> > all I/O until checkpoint. Was this considered? With
> > checkpoint_segments to 128, it wouldn't surprise me that there wasn't
> > any checkpoint executed at all during the whole test ...
>
> Yes, many things about the Solaris UFS filesystem caused a great deal of
> pain over the 10 months of experiments we ran with Sun MDE. Ultimately, the
> conclusion was that ZFS is going to make all of the pain go away.
>
> In the meantime, all you can do is tweak up UFS and avoid I/O as much as
> possible.
It is hard to imagine why people spend so much time modifying Sun
machines run with acceptable performance when non-Sun operating systems
work fine without such hurtles.
--
Bruce Momjian http://candle.pha.pa.us
EnterpriseDB http://www.enterprisedb.com
+ If your life is a hard drive, Christ can be your backup. +