Re: Should we cacheline align PGXACT?

On Fri, Aug 19, 2016 at 8:24 PM, Alexander Korotkov
<a(dot)korotkov(at)postgrespro(dot)ru> wrote:
> 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?
>

Yes, I can help in testing this patch during CF. Feel free to ping,
if I missed or forgot to do same.

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