Re: diff to speed up fdalloc using two-level bitmaps

Niels Provos <[email protected]>
Newsgroups gmane.os.netbsd.devel.performance
Message-ID <[email protected]> 
On Tue, Oct 28, 2003 at 01:40:08PM +0100, Lennart Augustsson wrote:
> Could you show the graph for just < 100 fds?
> That's after all where most of us live. :)

It could need some fine tuning

 http://www.citi.umich.edu/u/provos/benchmark/netbsd-fdalloc-zoom.jpg

An inline assembly function for finding the first zero bit in a
word would be a great thing to have across architectures.

Niels.
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