Simon Riggs <simon@2ndquadrant.com> writes:
> On Thu, 2004-11-04 at 19:34, Tom Lane wrote:
>> But only for Postgres' own shared buffers. The kernel cache still gets
>> trashed, because we have no way to suggest to the kernel that it not
>> hang onto the data read in.
> I guess a difference in viewpoints. I'm inclined to give most of the RAM
> to PostgreSQL, since as you point out, the kernel is out of our control.
> That way, we can do what we like with it - keep it or not, as we choose.
That's always been a Bad Idea for three or four different reasons, of
which ARC will eliminate no more than one.
regards, tom lane
