Re: [PATCH v3] mm, drm/i915: mark pinned shmemfs pages as unevictable

From: Dave Hansen
Date: Wed Oct 31 2018 - 10:40:18 EST

On 10/31/18 7:24 AM, Michal Hocko wrote:
> I am also wondering whether unevictable pages culling can be
> really visible when we do the anon LRU reclaim because the swap path is
> quite expensinve on its own.

Didn't we create the unevictable lists in the first place because
scanning alone was observed to be so expensive in some scenarios?

Or am I misunderstanding your question.