|
Currently, this is unlikely to be enabled for shared memory mappings on
any user's system, so will not make a difference. If
`/sys/kernel/mm/transparent_hugepage/shmem_enabled` is set to `advise`
or higher, however, this commit should enable the use of hugepages. This
can greatly speed up startup for large windows - for a 2880x1800
fullscreen window on my laptop, enabling hugepages halves startup time.
From the kernel mailing lists, it looks like there's some work towards
allowing applications to opt-in to THP support regardless of whether
they're enabled, via `madvise(MADV_COLLAPSE)`, so this may be more
useful in future.
|
