Patches 1-2 from v4 which are a requirement for this series
were sent separately by SJ and are merged in mm-unstable.
hugepage_size DAMOS filter can be used to gather statistics to
check if memory regions of specific access tempratures are backed
by hugepages of a size in a specific range. This filter can help
to observe and prove the effectivenes of different schemes for
shrinking/collapsing hugepages.
v4 -> v5: (SJ)
- Drop patches 1-2 which were merged.
- change filter name from 'hugepage' -> 'hugepage_size'.
- change struct name from damon_folio_size to damon_size_range.
v3 -> v4:
- Add support for large folios of all sizes, and not just
PMD mapped hugepages (David and SJ).
- only get folio while checking access/ applying DAMOS
scheme if the head page is also part of that region.
v2 -> v3:
- expose hugepage via sysfs even if the kernel is
built without hugepage support. DAMON will just
just return 0. (SJ Park)
v1 -> v2:
- Wrap DAMOS_FILTER_TYPE_HUGEPAGE case with
CONFIG_PGTABLE_HAS_HUGE_LEAVES (SJ Park)
Usama Arif (4):
mm/damon: introduce DAMOS filter type hugepage_size
mm/damon/sysfs-schemes: add files for setting damos_filter->sz_range
Docs/ABI/damon: document DAMOS sysfs files to set the min/max
folio_size
Docs/admin-guide/mm/damon/usage: Document hugepage_size filter type
.../ABI/testing/sysfs-kernel-mm-damon | 14 +++++
Documentation/admin-guide/mm/damon/usage.rst | 17 +++---
include/linux/damon.h | 13 +++++
mm/damon/core.c | 3 +
mm/damon/paddr.c | 6 ++
mm/damon/sysfs-schemes.c | 55 +++++++++++++++++++
6 files changed, 100 insertions(+), 8 deletions(-)
--
2.43.5
