On Tue, Jun 30, 2015 at 12:52 PM, Simon Riggs <
simon@2ndquadrant.com> wrote:
>
> On 30 June 2015 at 08:13, Michael Paquier <
michael.paquier@gmail.com> wrote:
>>
>>
>> Could it be possible to see some performance numbers? For example with a simple pgbench script doing a bunch of tiny transactions, with many concurrent sessions (perhaps hundreds).
>
>
> I'm more interested to see if people think it is safe.
>
> This contention is masked by contention elsewhere, e.g. ProcArrayLock, so the need for testing here should come once other patches ahead of this are in.
>
Exactly and other lock that can mask this improvement is WALWriteLock,
but for that we can take the performance data with synchronous_commit