Re: Why we are going to have to go DirectIO

On 2013-12-04 05:39:23 -0200, Claudio Freire wrote:
> Problem is, Postgres relies on a working kernel cache for checkpoints.
> Checkpoint logic would have to be heavily reworked to account for an
> impaired kernel cache.

I don't think checkpoints are the critical problem with that, they are
nicely in the background and we could easily add sorting.

Rather I think it would be the writeout of a dirty victim buffer when
acquiring a new buffer.

Greetings,

Andres Freund

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