commit 148f65b179cb4c63aab53e8d540bba4267428b17
author T.J. Mercier <tjmercier@google.com> Mon Mar 03 20:43:29 2025 +0000
committer T.J. Mercier <tjmercier@google.com> Mon Mar 03 20:53:24 2025 +0000
tree e3a87824003fa00cb3414cdb66a8d2eb58cf28a9
parent 672c440c65748cb22f909b7bd960db0202057612

Add lmkd_native.psi_partial_stall_ms test config

With MGLRU enabled, we see 5% - 16% fewer LMKs from the Beta population
compared to a non-MGLRU baseline. We'll try decreasing the LMKD wakeup
threshold by 20% in one of the experiment configurations to see if it
results in a comparable number of kills to non-MGLRU.

Bug: 384577842
Ignore-AOSP-First: 25Q2 Beta Experiment only go/android-memcgv2-exp
Change-Id: I566a4b294182ece0bd586c88e4f754160235d16f

rootdir/init.rc

diff --git a/rootdir/init.rc b/rootdir/init.rc
index 6a20b1c..4787ba3 100644
--- a/rootdir/init.rc
+++ b/rootdir/init.rc
@@ -1324,23 +1324,31 @@
   # Memcg v2 Experiment
   # TODO: Revert after go/android-memcgv2-exp b/386797433
   exec - system system -- /system/bin/memcgv2_activation_depth.sh 0
+  setprop persist.device_config.lmkd_native.psi_partial_stall_ms 70
 on property:persist.device_config.mglru_native.lru_gen_config=core
-  write /sys/kernel/mm/lru_gen/enabled 1
+  write /sys/kernel/mm/lru_gen/enabled y
+  # Memcg v2 Experiment
+  # TODO: Revert after go/android-memcgv2-exp b/386797433
+  exec - system system -- /system/bin/memcgv2_activation_depth.sh 1
+  setprop persist.device_config.lmkd_native.psi_partial_stall_ms 56
 on property:persist.device_config.mglru_native.lru_gen_config=core_and_mm_walk
   write /sys/kernel/mm/lru_gen/enabled y
   # Memcg v2 Experiment
   # TODO: Revert after go/android-memcgv2-exp b/386797433
   exec - system system -- /system/bin/memcgv2_activation_depth.sh 1
+  setprop persist.device_config.lmkd_native.psi_partial_stall_ms 70
 on property:persist.device_config.mglru_native.lru_gen_config=core_and_nonleaf_young
   write /sys/kernel/mm/lru_gen/enabled y
   # Memcg v2 Experiment
   # TODO: Revert after go/android-memcgv2-exp b/386797433
   exec - system system -- /system/bin/memcgv2_activation_depth.sh 2
+  setprop persist.device_config.lmkd_native.psi_partial_stall_ms 70
 on property:persist.device_config.mglru_native.lru_gen_config=all
   write /sys/kernel/mm/lru_gen/enabled y
   # Memcg v2 Experiment
   # TODO: Revert after go/android-memcgv2-exp b/386797433
   exec - system system -- /system/bin/memcgv2_activation_depth.sh 3
+  setprop persist.device_config.lmkd_native.psi_partial_stall_ms 70
 
 # Allow other processes to run `snapshotctl` through `init`. This requires
 # `set_prop` permission on `snapshotctl_prop`.