Tom Lane wrote:
I'm not entirely convinced that zero commit_siblings is a better
default than small positive values, but it's certainly plausible.
Not being allowed to set it to zero was certainly a limitation worth
abolishing though; that has been the case before now, for those who
didn't
Greg Smith writes:
> I then posted the patch and added it to the January CF. Unbeknownst to
> me until today, Simon had the same multi-year "this itches and I can't
> make it stop" feel toward these parameters, and that's how it jumped the
> standard process.
I think pretty much everybody who
Tom Lane wrote:
http://archives.postgresql.org/pgsql-performance/2010-12/msg00073.php
Possibly it should have been posted to -hackers instead, but surely you
read -performance?
Trying to figure out what exactly commit_delay and commit_siblings did
under the hood was actually the motivation
On Wed, Dec 8, 2010 at 2:31 PM, Tom Lane wrote:
> Robert Haas writes:
>> Not that I see anything to disagree with in this patch, but what
>> happened to posting patches in advance of committing them? Or did I
>> just miss that part?
>
> http://archives.postgresql.org/pgsql-performance/2010-12/ms
Robert Haas writes:
> Not that I see anything to disagree with in this patch, but what
> happened to posting patches in advance of committing them? Or did I
> just miss that part?
http://archives.postgresql.org/pgsql-performance/2010-12/msg00073.php
Possibly it should have been posted to -hacke
On Wed, Dec 8, 2010 at 1:56 PM, Tom Lane wrote:
> Simon Riggs writes:
>> Optimize commit_siblings in two ways to improve group commit.
>> First, avoid scanning the whole ProcArray once we know there
>> are at least commit_siblings active; second, skip the check
>> altogether if commit_siblings =
Simon Riggs writes:
> Optimize commit_siblings in two ways to improve group commit.
> First, avoid scanning the whole ProcArray once we know there
> are at least commit_siblings active; second, skip the check
> altogether if commit_siblings = 0.
> Greg Smith
I wonder whether we shouldn't change
