On Mon, Jul 27, 2020 at 2:45 PM Thomas Munro wrote:
> Here's a new version, using the name min_dynamic_shared_memory, which
> sounds better to me. Any objections? I also fixed the GUC's maximum
> setting so that it's sure to fit in size_t.
I pushed it like that. Happy to rename the GUC if some
On Sat, Jun 20, 2020 at 7:17 AM Andres Freund wrote:
> On 2020-06-19 17:42:41 +1200, Thomas Munro wrote:
> > On Thu, Jun 18, 2020 at 6:05 PM Thomas Munro wrote:
> > > Here's a version that adds some documentation.
> >
> > I jumped on a dual socket machine with 36 cores/72 threads and 144GB
> > of
Hi,
On 2020-06-19 17:42:41 +1200, Thomas Munro wrote:
> On Thu, Jun 18, 2020 at 6:05 PM Thomas Munro wrote:
> > Here's a version that adds some documentation.
>
> I jumped on a dual socket machine with 36 cores/72 threads and 144GB
> of RAM (Azure F72s_v2) running Linux, configured with 50GB of
On Thu, Jun 18, 2020 at 6:05 PM Thomas Munro wrote:
> Here's a version that adds some documentation.
I jumped on a dual socket machine with 36 cores/72 threads and 144GB
of RAM (Azure F72s_v2) running Linux, configured with 50GB of huge
pages available, and I ran a very simple test: select count(
On Thu, Jun 11, 2020 at 5:37 AM Robert Haas wrote:
> On Tue, Jun 9, 2020 at 6:03 PM Thomas Munro wrote:
> > That all makes sense. Now I'm wondering if I should use exactly that
> > word in the GUC... dynamic_shared_memory_preallocate?
>
> I tend to prefer verb-object rather than object-verb word
On Tue, Jun 9, 2020 at 6:03 PM Thomas Munro wrote:
> That all makes sense. Now I'm wondering if I should use exactly that
> word in the GUC... dynamic_shared_memory_preallocate?
I tend to prefer verb-object rather than object-verb word ordering,
because that's how English normally works, but I r
On Sat, Apr 11, 2020 at 1:55 AM Robert Haas wrote:
> On Thu, Apr 9, 2020 at 1:46 AM Thomas Munro wrote:
> > The attached highly experimental patch adds a new GUC
> > dynamic_shared_memory_main_size. If you set it > 0, it creates a
> > fixed sized shared memory region that supplies memory for "fa
On Thu, Apr 9, 2020 at 1:46 AM Thomas Munro wrote:
> The attached highly experimental patch adds a new GUC
> dynamic_shared_memory_main_size. If you set it > 0, it creates a
> fixed sized shared memory region that supplies memory for "fast" DSM
> segments. When there isn't enough free space, dsm
