Re: Scaling shared buffer eviction

On 2014-11-11 09:29:22 +0000, Thom Brown wrote:
> On 26 September 2014 12:40, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
>
> > On Tue, Sep 23, 2014 at 10:31 AM, Robert Haas <robertmhaas(at)gmail(dot)com>
> > wrote:
> > >
> > > But this gets at another point: the way we're benchmarking this right
> > > now, we're really conflating the effects of three different things:
> > >
> > > 1. Changing the locking regimen around the freelist and clocksweep.
> > > 2. Adding a bgreclaimer process.
> > > 3. Raising the number of buffer locking partitions.
> >
> > First of all thanks for committing part-1 of this changes and it
> > seems you are planing to commit part-3 based on results of tests
> > which Andres is planing to do and for remaining part (part-2), today
> >
>
> Were parts 2 and 3 committed in the end?

3 was committed. 2 wasn't because it's not yet clear whether how
beneficial it is generally.

Greetings,

Andres Freund

--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services