Re: [HACKERS] Should we cacheline align PGXACT?

Hi,

>> On Thu, Feb 16, 2017 at 5:07 AM, Alexander Korotkov
>> <a.korotkov@postgrespro.ru> wrote:
>> > On Wed, Feb 15, 2017 at 8:49 PM, Alvaro Herrera
>> > <alvherre@2ndquadrant.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.