robertmh...@gmail.com (Robert Haas) writes:
> On Mon, Jan 17, 2011 at 8:23 PM, Greg Smith wrote:
>> Quite. It's taken me 12 days of machine time running pgbench to find the
>> spots where this problem occurs on a system with a reasonably sized
>> shared_buffers (I'm testing against 256MB). It's
On Mon, Jan 17, 2011 at 8:23 PM, Greg Smith wrote:
> Quite. It's taken me 12 days of machine time running pgbench to find the
> spots where this problem occurs on a system with a reasonably sized
> shared_buffers (I'm testing against 256MB). It's one of those things it's
> hard to reproduce with
Chris Browne wrote:
It was a little troublesome inducing it. I did so by cutting
shared memory to minimum (128kB)...
With higher shared memory, I couldn't readily induce compaction,
which is probably a concurrency matter of not having enough volume
of concurrent wor
On Mon, Jan 17, 2011 at 1:43 PM, Chris Browne wrote:
> (I observe that it wasn't all that obvious that "hash_search()"
> *adds* elements that are missing. I got confused and went
> looking for "hash_add() or similar. It's permissible to say "dumb
> Chris".)
I didn't invent t
I have been taking a peek at the following commitfest item:
https://commitfest.postgresql.org/action/patch_view?id=497
Submission:
- I had to trim a little off the end of the patch to apply it, but
that's likely the fault of how I cut'n'pasted it. It applied cleanly
against HEAD.
- I obse
