Re: Speed up Clog Access by increasing CLOG buffers

On Tue, Nov 17, 2015 at 1:32 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
wrote:
>
> On Mon, Sep 21, 2015 at 6:34 AM, Peter Geoghegan <pg(at)heroku(dot)com> wrote:
> >
> > On Mon, Aug 31, 2015 at 9:49 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
wrote:
> > > Increasing CLOG buffers to 64 helps in reducing the contention due to
second
> > > reason. Experiments revealed that increasing CLOG buffers only helps
> > > once the contention around ProcArrayLock is reduced.
> >
>
> Overall this idea sounds promising, but I think the work involved is more
> than the benefit I am expecting for the current optimization we are
> discussing.
>

Sorry, I think last line is slightly confusing, let me try to again write
it:

Overall this idea sounds promising, but I think the work involved is more
than the benefit expected from the current optimization we are
discussing.

With Regards,
Amit Kapila.
EnterpriseDB: http://www.enterprisedb.com