Re: Advice configuring ServeRAID 8k for performance - Mailing list pgsql-performance

From Greg Smith
Subject Re: Advice configuring ServeRAID 8k for performance
Date
Msg-id 4C69A57B.80605@2ndquadrant.com
Whole thread Raw
In response to Re: Advice configuring ServeRAID 8k for performance  (Andres Freund <andres@anarazel.de>)
Responses Re: Advice configuring ServeRAID 8k for performance
List pgsql-performance
Andres Freund wrote:
> A new checkpointing logic + a new syncing logic
> (prepare_fsync() earlier and then fsync() later) would be a nice
> thing. Do you plan to work on that?
>

The background writer already caches fsync calls into a queue, so the
prepare step you're thinking needs to be there is already.  The problem
is that the actual fsync calls happen in a tight loop.  That we're busy
fixing.

--
Greg Smith  2ndQuadrant US  Baltimore, MD
PostgreSQL Training, Services and Support
greg@2ndQuadrant.com   www.2ndQuadrant.us


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