Date: Wed, 3 Dec 2003 23:54:45 -0800 From: David Schultz <das@FreeBSD.ORG> To: Tim Robbins <tjr@FreeBSD.ORG> Cc: current@FreeBSD.ORG Subject: Re: Port of Niels Provos's file descriptor allocation code Message-ID: <20031204075445.GA96485@VARK.homeunix.com> In-Reply-To: <20031127070239.GA12950@wombat.robbins.dropbear.id.au> References: <20031127070239.GA12950@wombat.robbins.dropbear.id.au>
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On Thu, Nov 27, 2003, Tim Robbins wrote: > I've ported Niels Provos's file descriptor allocation code to FreeBSD > in case anyone wants to try it out & run some benchmarks. If the performance > boost turns out to be worth the added complexity, I might clean it up a > bit and commit it. I've used a similar data structure for a special-purpose allocator before, and it had extremely low allocation time overhead--- basically a few memory references for every level of the tree in the common case. Unless for some strange reason it pessimizes processes with a small number of file descriptors significantly, it would be really great to have this in the tree!
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