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Re: Configuring PostgreSQL to minimize impact of checkpoints - Mailing list pgsql-performance

From scott.marlowe
Subject Re: Configuring PostgreSQL to minimize impact of checkpoints
Date
Msg-id Pine.LNX.4.33.0405111607090.23876-100000@css120.ihs.com
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In response to Re: Configuring PostgreSQL to minimize impact of checkpoints  (Paul Tuckfield <paul@tuckfield.com>)
List pgsql-performance
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On Tue, 11 May 2004, Paul Tuckfield wrote:

> Love that froogle.
>
> It looks like a nice card.     One thing I didn't get straight is if
> the cache is writethru or write back.
>
> If the original posters problem is truly a burst write problem (and not
> linux caching or virtual memory overcommitment) then writeback is key.

the MegaRaid can be configured either way.  it defaults to writeback if
the battery backed cache is present, I believe.

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