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lmkd: check pgrefill vmstat when deciding active reclaim am: 4d8791b1f1 

Original change: https://android-review.googlesource.com/c/platform/system/memory/lmkd/+/2662996

Change-Id: I4b7e1a8bc1f8d5c706ff8fbdfbba952309cf643b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Suren Baghdasaryan 2023-07-28 22:52:14 +00:00 committed by Automerger Merge Worker
parent f53e58ae1d 4d8791b1f1
commit 3d9c7f86fa
1 changed files with 9 additions and 0 deletions
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9
lmkd.cpp
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@ -467,6 +467,7 @@ enum vmstat_field {
VS_PGSCAN_KSWAPD,
VS_PGSCAN_DIRECT,
VS_PGSCAN_DIRECT_THROTTLE,
VS_PGREFILL,
VS_FIELD_COUNT
};
@ -479,6 +480,7 @@ static const char* const vmstat_field_names[VS_FIELD_COUNT] = {
"pgscan_kswapd",
"pgscan_direct",
"pgscan_direct_throttle",
"pgrefill",
};
union vmstat {
@ -491,6 +493,7 @@ union vmstat {
int64_t pgscan_kswapd;
int64_t pgscan_direct;
int64_t pgscan_direct_throttle;
int64_t pgrefill;
} field;
int64_t arr[VS_FIELD_COUNT];
};
@ -2586,6 +2589,7 @@ static void mp_event_psi(int data, uint32_t events, struct polling_params *poll_
static int64_t base_file_lru;
static int64_t init_pgscan_kswapd;
static int64_t init_pgscan_direct;
static int64_t init_pgrefill;
static bool killing;
static int thrashing_limit = thrashing_limit_pct;
static struct zone_watermarks watermarks;
@ -2671,9 +2675,14 @@ static void mp_event_psi(int data, uint32_t events, struct polling_params *poll_
if (vs.field.pgscan_direct != init_pgscan_direct) {
init_pgscan_direct = vs.field.pgscan_direct;
init_pgscan_kswapd = vs.field.pgscan_kswapd;
init_pgrefill = vs.field.pgrefill;
reclaim = DIRECT_RECLAIM;
} else if (vs.field.pgscan_kswapd != init_pgscan_kswapd) {
init_pgscan_kswapd = vs.field.pgscan_kswapd;
init_pgrefill = vs.field.pgrefill;
reclaim = KSWAPD_RECLAIM;
} else if (vs.field.pgrefill != init_pgrefill) {
init_pgrefill = vs.field.pgrefill;
reclaim = KSWAPD_RECLAIM;
} else if (workingset_refault_file == prev_workingset_refault) {
/*