Re: Should we cacheline align PGXACT?

On Fri, Feb 17, 2017 at 12:44 PM, Ashutosh Sharma <ashu(dot)coek88(at)gmail(dot)com>
wrote:

> >> On Thu, Feb 16, 2017 at 5:07 AM, Alexander Korotkov
> >> <a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> >> > On Wed, Feb 15, 2017 at 8:49 PM, Alvaro Herrera
> >> > <alvherre(at)2ndquadrant(dot)com>
> >> > wrote:
> >> >> Alexander Korotkov wrote:
> >> >>
> >> >> > Difference between master, pgxact-align-2 and pgxact-align-3
> doesn't
> >> >> > exceed
> >> >> > per run variation.
> >> >>
> >> >> FWIW this would be more visible if you added error bars to each data
> >> >> point. Should be simple enough in gnuplot ...
> >> >
> >> > Good point.
> >> > Please find graph of mean and errors in attachment.
> >>
> >> So ... no difference?
> >
> >
> > Yeah, nothing surprising. It's just another graph based on the same
> data.
> > I wonder how pgxact-align-3 would work on machine of Ashutosh Sharma,
> > because I observed regression there in write-heavy benchmark of
> > pgxact-align-2.
>
> I am yet to benchmark pgxact-align-3 patch on a read-write workload. I
> could not do it as our benchmarking machine was already reserved for
> some other test work. But, I am planning to do it on this weekend.
> Will try to post my results by Monday evening. Thank you and sorry for
> the delayed response.
>

Cool, thank you very much!

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