Re: testing HS/SR - 1 vs 2 performance - Mailing list pgsql-hackers

On Wed, Apr 21, 2010 at 8:20 AM, Heikki Linnakangas
<heikki.linnakangas@enterprisedb.com> wrote:
> The locking seems overly complex to me.

I tend to agree.

!     /*
!      * Callers must hold either ProcArrayLock in Exclusive mode or
!      * ProcArrayLock in Shared mode *and* known_assigned_xids_lck
!      * to update these values.
!      */

I'm not convinced that this is either (a) correct or (b) performant.

...Robert