| From: | Rusty Conover <rconover(at)infogears(dot)com> |
|---|---|
| To: | Ross J(dot) Reedstrom <reedstrm(at)rice(dot)edu> |
| Cc: | pgsql-performance <pgsql-performance(at)postgresql(dot)org> |
| Subject: | Re: TCP network cost |
| Date: | 2009-02-17 20:59:55 |
| Message-ID: | B7A2E4DA-A137-46F5-8643-2EF3772F4D2C@infogears.com |
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| Thread: | |
| Lists: | pgsql-performance |
On Feb 17, 2009, at 1:04 PM, Ross J. Reedstrom wrote:
> On Tue, Feb 17, 2009 at 12:20:02AM -0700, Rusty Conover wrote:
>>
>>
>> Try running tests with ttcp to eliminate any PostgreSQL overhead and
>> find out the real bandwidth between the two machines. If its results
>> are also slow, you know the problem is TCP related and not PostgreSQL
>> related.
>
> I did in fact run a simple netcat client/server pair and verified
> that I
> can transfer that file on 0.12 sec localhost (or hostname), 0.35
> over the
> net, so TCP stack and network are not to blame. This is purely inside
> the postgresql code issue, I believe.
>
>
What is the client software you're using? libpq?
Rusty
--
Rusty Conover
rconover(at)infogears(dot)com
InfoGears Inc / GearBuyer.com / FootwearBuyer.com
http://www.infogears.com
http://www.gearbuyer.com
http://www.footwearbuyer.com
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