Re: Speed up Clog Access by increasing CLOG buffers - Mailing list pgsql-hackers

From Amit Kapila
Subject Re: Speed up Clog Access by increasing CLOG buffers
Date
Msg-id CAA4eK1+9AcXMBAnWi5ntVwmQfd3pR4m7UMJtoEd1Lb6zPemgHQ@mail.gmail.com
Whole thread Raw
In response to Re: Speed up Clog Access by increasing CLOG buffers  (Amit Kapila <amit.kapila16@gmail.com>)
List pgsql-hackers
On Tue, Nov 17, 2015 at 1:32 PM, Amit Kapila <amit.kapila16@gmail.com> wrote:
>
> On Mon, Sep 21, 2015 at 6:34 AM, Peter Geoghegan <pg@heroku.com> wrote:
> >
> > On Mon, Aug 31, 2015 at 9:49 PM, Amit Kapila <amit.kapila16@gmail.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

pgsql-hackers by date:

Previous
From: Amit Kapila
Date:
Subject: Re: Speed up Clog Access by increasing CLOG buffers
Next
From: Vitaly Burovoy
Date:
Subject: Re: Extracting fields from 'infinity'::TIMESTAMP[TZ]