Re: Should we cacheline align PGXACT?

On Fri, Aug 19, 2016 at 3:19 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
wrote:

> On Fri, Aug 19, 2016 at 11:42 AM, Alexander Korotkov
> <a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> > Hackers,
> >
> > originally this idea was proposed by Andres Freund while experimenting
> with
> > lockfree Pin/UnpinBuffer [1].
> > The patch is attached as well as results of pgbench -S on 72-cores
> machine.
> > As before it shows huge benefit in this case.
> > For sure, we should validate that it doesn't cause performance
> regression in
> > other cases. At least we should test read-write and smaller machines.
> > Any other ideas?
> >
>
> may be test on Power m/c as well.
>

Good idea. I don't have any such machine at hand now. Do you have one?

------
Alexander Korotkov
Postgres Professional: http://www.postgrespro.com
The Russian Postgres Company