| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com> |
| Cc: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: POC: Cache data in GetSnapshotData() |
| Date: | 2016-04-08 06:43:25 |
| Message-ID: | CA+TgmobemA6zL35DDf98ZWKEV_XFDTa+=3C=3Uh=D2biK=qOuw@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Tue, Mar 22, 2016 at 4:42 AM, Mithun Cy <mithun(dot)cy(at)enterprisedb(dot)com> wrote:
> On Thu, Mar 10, 2016 at 1:36 PM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> wrote:
> >Do you think it makes sense to check the performance by increasing CLOG buffers (patch for same is posted in Speed up Clog thread [1]) >as that also relieves contention on CLOG as per the tests I have done?
>
> Along with clog patches and save snapshot, I also applied Amit's increase clog buffer patch. Below is the benchmark results.
I think that we really shouldn't do anything about this patch until
after the CLOG stuff is settled, which it isn't yet. So I'm going to
mark this Returned with Feedback; let's reconsider it for 9.7.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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