Re: Re: Idea: recycle WAL segments, don't delete/recreate 'em

From: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
To: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Re: Idea: recycle WAL segments, don't delete/recreate 'em
Date: 2001-07-17 19:18:40
Message-ID: 200107171918.f6HJIe226895@candle.pha.pa.us
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> Hi -
>
> pgman wrote:
>
> : Most Unix filesystems will not allocate disk blocks until you write in
> : them. [...]
>
> Yes, I understand that, but how is it a problem for postgresql?

Uh, I thought we did that so we were not allocating file system blocks
during WAL writes. Performance is bad when we do that.

--
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