Re: [RFC 0/6] x86: prefetch_page() vDSO call

From: Matthew Wilcox
Date: Thu Feb 25 2021 - 07:17:51 EST


On Wed, Feb 24, 2021 at 11:29:04PM -0800, Nadav Amit wrote:
> Just as applications can use prefetch instructions to overlap
> computations and memory accesses, applications may want to overlap the
> page-faults and compute or overlap the I/O accesses that are required
> for page-faults of different pages.

Isn't this madvise(MADV_WILLNEED)?