From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <2125ed224c77c85fc13d81eb95377a2a@terzarima.net>
To: 9fans@9fans.net
From: Charles Forsyth <forsyth@terzarima.net>
Date: Thu, 17 Jul 2008 10:07:10 +0100
In-Reply-To: <487EFBC8.4060607@gmx.de>
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Subject: Re: [9fans] 8 cores
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> I could imagine that databases use mmap() havily

it's a little mystery for me why they would do that since it's slower (or ought to be),
because the trap path and fault recovery must do more work than syscall (perhaps much more).
it's also difficult then to optimise the replacement strategy for the application
without madvise calls (and you trust those implicitly?) but those are system calls that cost time.