| From: | Robert Haas <robertmhaas(at)gmail(dot)com> |
|---|---|
| To: | Amit Kapila <amit(dot)kapila16(at)gmail(dot)com> |
| Cc: | Thom Brown <thom(at)linux(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Jesper Pedersen <jesper(dot)pedersen(at)redhat(dot)com>, pgsql-hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: Speed up Clog Access by increasing CLOG buffers |
| Date: | 2016-02-21 06:32:31 |
| Message-ID: | CA+TgmoYVcNRJs3D2_Nk_ykUfxSVyp+WFqgkwYE+9FPUKVNrwGg@mail.gmail.com |
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| Lists: | pgsql-hackers |
On Sun, Feb 21, 2016 at 10:27 AM, Amit Kapila <amit(dot)kapila16(at)gmail(dot)com>
wrote:
>
> Client_Count/Patch_Ver 1 64 128 256
> HEAD(481725c0) 963 28145 28593 26447
> Patch-1 938 28152 31703 29402
>
>
> We can see 10~11% performance improvement as observed
> previously. You might see 0.02% performance difference with
> patch as regression, but that is just a run-to-run variation.
>
Don't the single-client numbers show about a 3% regresssion? Surely not
0.02%.
--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company
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