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SubjectRe: andrea buffer code (2.2.9-C.gz)
On Thu, 20 May 1999, Ingo Molnar wrote:

>locks contended in tests, have you measured things. OS development is
>never 'mathematically clean'.

Usually I do what I think will improve things. Sometime I also benchmark.
I think this time I did the wrong choice, probably because it was more fun
the finegriend way :-). The io_request_lock is a very good point.

I released now a buffer-2.2.9-L.gz that kills the per-page spinlock.

Andrea Arcangeli

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