Search Postgresql Archives

Re: Libpq is very slow on windows but fast on linux.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Thanks, but no, it's using ip, and after the connection has been
established etc. the 3500ms it the total query time on windows vs
800ms on linux.  Same server, so I think it is related to libpq
implementation on windows.

I also get the same results running XP in a virtualbox on a linux
machine, while the linux host machine is getting 800ms.


On Sun, Nov 7, 2010 at 12:59 PM, Joe Conway <mail@xxxxxxxxxxxxx> wrote:
> On 11/06/2010 04:54 PM, Rob Brown-Bayliss wrote:
>> Hi
>>
>> I have a problem with libpq on windows. Connecting to a db and running
>> a "select * from some_table;" is very slow.
>>
>> The table has only 1800 rows, 7 columns. No blobs etc.
>>
>> The query is taking around 3500ms, in linux it takes around 800ms.
>> (About 500ms is network time, the server is on the opposite side of
>> the world from my location.)
>>
>> The hardware is identical (dual boot)
>>
>> Why does this so long in windows? I tested in pqsl, and pgadmin to
>> rule out errors in the app code.
>>
>> Any advice or clues?  I need the app to work on both platforms.
>
> Just a guess, but maybe DNS lookup time? Try using IP address instead of
> FQDN.
>
> HTH,
>
> Joe
>
> --
> Joe Conway
> credativ LLC: http://www.credativ.us
> Linux, PostgreSQL, and general Open Source
> Training, Service, Consulting, & 24x7 Support
>
>



-- 
--

Rob

-- 
Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general



[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Index of Archives]     [Postgresql Jobs]     [Postgresql Admin]     [Postgresql Performance]     [Linux Clusters]     [PHP Home]     [PHP on Windows]     [Kernel Newbies]     [PHP Classes]     [PHP Books]     [PHP Databases]     [Postgresql & PHP]     [Yosemite]
  Powered by Linux