Messages in this thread | | | Date | Sat, 19 Jun 2021 13:50:17 +0300 | From | Andy Shevchenko <> | Subject | Re: [PATCH 2/3] find: micro-optimize for_each_{set,clear}_bit() |
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On Fri, Jun 18, 2021 at 12:57:34PM -0700, Yury Norov wrote: > The macros iterate thru all set/clear bits in a bitmap. They search a > first bit using find_first_bit(), and the rest bits using find_next_bit(). > > Since find_next_bit() is called shortly after find_first_bit(), we can > save few lines of I-cache by not using find_first_bit().
Any number available?
-- With Best Regards, Andy Shevchenko
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