Re: Move PinBuffer and UnpinBuffer to atomics

On Sat, Mar 5, 2016 at 7:22 AM, Dilip Kumar <dilipbalaut@gmail.com> wrote:
> On Wed, Mar 2, 2016 at 11:05 AM, Dilip Kumar <dilipbalaut@gmail.com> wrote:
>> And this latest result (no regression) is on X86 but on my local machine.
>>
>> I did not exactly saw what this new version of patch is doing different,
>> so I will test this version in other machines also and see the results.
>
>
> I tested this on PPC again, This time in various order (sometime patch first
> and then base first).
>  I tested with latest patch pinunpin-cas-2.patch on Power8.
>
> Shared Buffer = 8GB
> ./pgbench  -j$ -c$ -T300 -M prepared -S postgres
>
> BASE
> -----
> Clients    run1    run2    run3
> 1           21200    18754    20537
> 2           40331    39520    38746
>
>
> Patch
> -----
> Clients    run1    run2        run3
> 1           20225    19806    19778
> 2           39830    41898    36620
>
> I think, here we can not see any regression, (If I take median then it may
> looks low with patch so posting all 3 reading).

If the median looks low, how is that not a regression?