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Re: PostgreSQL is extremely slow on Windows

From: Markus Schaber <schabios(at)logi-track(dot)com>
To: Magnus Hagander <mha(at)sollentuna(dot)net>
Cc: "Vig, Sandor (G/FI-2)" <Sandor(dot)Vig(at)audi(dot)hu>,pgsql-performance(at)postgresql(dot)org
Subject: Re: PostgreSQL is extremely slow on Windows
Date: 2005-02-23 14:37:48
Message-ID: (view raw, whole thread or download thread mbox)
Lists: 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

markus schaber | dipl. informatiker
logi-track ag | rennweg 14-16 | ch 8001 z├╝rich
phone +41-43-888 62 52 | fax +41-43-888 62 53
mailto:schabios(at)logi-track(dot)com |

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