Hi,
On Thu, Apr 17, 2025 at 01:58:44AM +1200, Thomas Munro wrote:
> On Wed, Apr 16, 2025 at 9:14 PM Jakub Wartak
> wrote:
> > 2. Should we also interleave DSA/DSM for Parallel Query? (I'm not an
> > expert on DSA/DSM at all)
>
> I have no answers but I have speculated for years about a very
> sp
Hi,
On Wed, Apr 16, 2025 at 10:05:04AM -0400, Robert Haas wrote:
> On Wed, Apr 16, 2025 at 5:14 AM Jakub Wartak
> wrote:
> > Normal pgbench workloads tend to be not affected, as each backend
> > tends to touch just a small partition of shm (thanks to BAS
> > strategies). Some remaining questions
On Wed, Apr 16, 2025 at 5:14 AM Jakub Wartak
wrote:
> Normal pgbench workloads tend to be not affected, as each backend
> tends to touch just a small partition of shm (thanks to BAS
> strategies). Some remaining questions are:
> 1. How to name this GUC (numa or numa_shm_interleave) ? I prefer the
On Thu, Apr 17, 2025 at 1:58 AM Thomas Munro wrote:
> I have no answers but I have speculated for years about a very
> specific case (without any idea where to begin due to lack of ... I
> guess all this sort of stuff): in ExecParallelHashJoinNewBatch(),
> workers split up and try to work on diffe
On Wed, Apr 16, 2025 at 9:14 PM Jakub Wartak
wrote:
> 2. Should we also interleave DSA/DSM for Parallel Query? (I'm not an
> expert on DSA/DSM at all)
I have no answers but I have speculated for years about a very
specific case (without any idea where to begin due to lack of ... I
guess all this
