Re: PostgreSQL is extremely slow on Windows - Mailing list pgsql-performance

From Markus Schaber
Subject Re: PostgreSQL is extremely slow on Windows
Date
Msg-id 421C953C.4040907@logi-track.com
Whole thread Raw
In response to Re: PostgreSQL is extremely slow on Windows  ("Magnus Hagander" <mha@sollentuna.net>)
List pgsql-performance
Hi, Magnus & all,

Magnus Hagander schrieb:
> 20-30 transactionsi s about what you'll get on a single disk on Windows
> today.
> We have a patch in testing that will bring this up to about 80.
> You can *never* get above 80 without using write cache, regardless of
> your OS, if you have a single disk. You might want to look into wether
> write cacheing is enabled on your linux box, and disable it. (unless you
> are using RAID) A lot points towards write cache enabled on your system.

Note that you can get higher rates for the server as a whole when using
concurrent transactions (that is, several independend connections
committing at the same time). The commit delay settings should be tuned
accordingly.


Markus
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