PostgreSQL and sql-bench

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От yoav x
Тема PostgreSQL and sql-bench
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Msg-id 20060921145244.13005.qmail@web35813.mail.mud.yahoo.com
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Ответы Re: PostgreSQL and sql-bench  (Brad Nicholson <bnichols@ca.afilias.info>)
Re: PostgreSQL and sql-bench  (Mark Lewis <mark.lewis@mir3.com>)
Re: PostgreSQL and sql-bench  ("Guido Neitzer" <guido.neitzer@gmail.com>)
Re: PostgreSQL and sql-bench  (Tom Lane <tgl@sss.pgh.pa.us>)
Re: PostgreSQL and sql-bench  (Jeff Davis <pgsql@j-davis.com>)
Список pgsql-performance
Hi

After upgrading DBI and DBD::Pg, this benchmark still picks MySQL as the winner (at least on Linux
RH3 on a Dell 1875 server with 2 hyperthreaded 3.6GHz CPUs and 4GB RAM).
I've applied the following parameters to postgres.conf:

max_connections = 500
shared_buffers = 3000
work_mem = 100000
effective_cache_size = 3000000000

Most queries still perform slower than with MySQL.
Is there anything else that can be tweaked or is this a limitation of PG or the benchmark?

Thanks.



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