On Wed, Dec 15, 2021 at 12:41 AM David Laight wrote:
>
> From: Yury Norov
> > Sent: 14 December 2021 19:43
> ...
> >
> > I think that for long bitmaps the most time consuming operation is moving
> > data to L1, and for short bitmaps the difference between approaches is
> > barely measurable.
> >
From: Yury Norov
> Sent: 14 December 2021 19:43
...
>
> I think that for long bitmaps the most time consuming operation is moving
> data to L1, and for short bitmaps the difference between approaches is
> barely measurable.
>
> But hweght_long on each iteration can't be more effective than the
On Sun, Nov 28, 2021 at 10:10 AM Michał Mirosław
wrote:
>
> On Sat, Nov 27, 2021 at 07:56:57PM -0800, Yury Norov wrote:
> > Now as we have bitmap_weight_eq(), switch bitmap_full() and
> > bitmap_empty() to using it.
> >
> > Signed-off-by: Yury Norov
> > ---
> > include/linux/bitmap.h | 26
On Sun, Nov 28, 2021 at 05:37:19AM +0100, Michał Mirosław wrote:
> On Sat, Nov 27, 2021 at 07:56:57PM -0800, Yury Norov wrote:
> > Now as we have bitmap_weight_eq(), switch bitmap_full() and
> > bitmap_empty() to using it.
> [...]
> > -static inline bool bitmap_empty(const unsigned long *src,
