| From: | Merlin Moncure <mmoncure(at)gmail(dot)com> |
|---|---|
| To: | Robert Haas <robertmhaas(at)gmail(dot)com> |
| Cc: | Simon Riggs <simon(at)2ndquadrant(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: CLOG contention |
| Date: | 2012-01-05 19:34:55 |
| Message-ID: | CAHyXU0zT2VSVLZBLRGF+dpjjonA8T6Y1qSSQ7geCr4dcbsxOtA@mail.gmail.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
On Thu, Jan 5, 2012 at 1:12 PM, Robert Haas <robertmhaas(at)gmail(dot)com> wrote:
> On Thu, Jan 5, 2012 at 11:10 AM, Simon Riggs <simon(at)2ndquadrant(dot)com> wrote:
>> Let's commit the change to 32.
>
> I would like to do that, but I think we need to at least figure out a
> way to provide an escape hatch for people without much shared memory.
> We could do that, perhaps, by using a formula like this:
>
> 1 CLOG buffer per 128MB of shared_buffers, with a minimum of 8 and a
> maximum of 32
The assumption that machines that need this will have gigabytes of
shared memory set is not valid IMO.
merlin
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Simon Riggs | 2012-01-05 19:39:22 | Re: CLOG contention |
| Previous Message | Robert Haas | 2012-01-05 19:26:44 | Re: CLOG contention |