Date: Mon, 8 Aug 2005 08:49:46 +0200 From: Borja Marcos <BORJAMAR@SARENET.ES> To: Darren Reed <darrenr@hub.freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: [RFC] Bumping ufs.dirhash_maxmem to a larger value? Message-ID: <86718C14-B790-43FE-94E0-499ECBB4FA34@SARENET.ES> In-Reply-To: <20050807214338.GA34438@hub.freebsd.org> References: <20050807185129.GA61807@frontfree.net> <20050807214338.GA34438@hub.freebsd.org>
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> So why not make the determination of "dirhash_maxmem" the result of
> some
> calculation(s) that takes into account RAM size, etc ?
>
> The obvious lesson here is that picking a number to be a limit
> based on
> the current size of machines fails the test of time.
I think that changing it now without a mechanism to reduce the
memory amount in case of memory shortages would be a violation of the
Principle of Minimal Surprise.
Borja.
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