| From: | Mark Wong <markw(at)osdl(dot)org> |
|---|---|
| To: | ITAGAKI Takahiro <itagaki(dot)takahiro(at)lab(dot)ntt(dot)co(dot)jp> |
| Cc: | pgsql-hackers(at)postgresql(dot)org, pgsql-patches(at)postgresql(dot)org |
| Subject: | Re: [PATCHES] WAL: O_DIRECT and multipage-writer (+ memory leak) |
| Date: | 2005-03-01 21:53:10 |
| Message-ID: | 20050301215310.GD2115@osdl.org |
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| Thread: | |
| Lists: | pgsql-hackers pgsql-patches |
On Thu, Feb 03, 2005 at 07:25:55PM +0900, ITAGAKI Takahiro wrote:
> Hello everyone.
>
> I fixed two bugs in the patch that I sent before.
> Check and test new one, please.
Ok, finally got back into the office and was able to run 1 set of
tests.
So the new baseline result with 8.0.1:
http://www.osdl.org/projects/dbt2dev/results/dev4-010/309/
Throughput: 3639.97
Results with the patch but open_direct not set:
http://www.osdl.org/projects/dbt2dev/results/dev4-010/308/
Throughput: 3494.72
Results with the patch and open_direct set:
http://www.osdl.org/projects/dbt2dev/results/dev4-010/312/
Throughput: 3489.69
You can verify that the wall_sync_method is set to open_direct under
the "database parameters" link, but I'm wondering if I missed
something. It looks a little odd the the performance dropped.
Mark
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