On Fri, 10 Jan 2025 17:37:15 +0800 Dengdui Huang <huangdeng...@huawei.com> wrote:
> The prefetch window depending on the HW platform. It is difficult to > measure the prefetch window of a HW platform. Therefore, the prefetch > offset option is added to change the prefetch window. User can adjust > the refetch offset to achieve the best prefetch effect. > > In addition, this option is used only in the main loop. > > Signed-off-by: Dengdui Huang <huangdeng...@huawei.com> > --- This will make it slower for many platforms. GCC will unroll a loop of fixed small size, which is what we want.
