diff options
| author | Martin Liu <liumartin@google.com> | 2021-06-11 14:38:35 +0800 |
|---|---|---|
| committer | Martin Liu <liumartin@google.com> | 2021-06-30 17:07:19 +0800 |
| commit | 0253b1bf1a9d970f8ada691e99ea4ba258ee09a9 (patch) | |
| tree | 810dc75243c31478cbb1894f4f90d7da593eafb0 /mm | |
| parent | 496c0445d3db864500af64b60d87556d4ad23b5f (diff) | |
MM: fine tune vm parameters for GKI version
Since GKI, we have THP and watermarker boost feature. Those features
will bump up min_free_kbytes as.
THP: boot min_free_kbytes statically while mm init phase
Watermark_boost_factor: dynamically boost min_free_kbytes when hitting
fragmentation event.
Both changes will increase watermarks level by a lot and might cause
LMKD not work as our expectation. Let's reset the value to align with our
legacy projects to clarify the issues. Once we get more pro and con data,
we could enable them again.
Also, we don't have limitation to access limited physical memory so we
could reset lowmem_reserve_ratio to zero.
Bug: 190571517
Bug: 189938926
Bug: 190732106
Test: cat vm parameters
Signed-off-by: Martin Liu <liumartin@google.com>
Change-Id: I128d2f298dc8b82e472344d0d5c5588ce8a60702
Merged-In: I128d2f298dc8b82e472344d0d5c5588ce8a60702
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/pixel-mm-gki.rc | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/mm/pixel-mm-gki.rc b/mm/pixel-mm-gki.rc index 188c30c..ebeb236 100644 --- a/mm/pixel-mm-gki.rc +++ b/mm/pixel-mm-gki.rc @@ -12,5 +12,11 @@ # See the License for the specific language governing permissions and # limitations under the License. +on init + # memory reserve tuning + write /proc/sys/vm/watermark_boost_factor 0 + write /proc/sys/vm/min_free_kbytes 27386 + write /proc/sys/vm/lowmem_reserve_ratio "0 0 0" + on property:sys.boot_completed=1 chmod 444 /sys/kernel/debug/page_owner |