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lmkd: Do not kill perceptible apps due to low swap if above min wmark am: 7afa463978 am: 747c846a5a 

Change-Id: I546012e24b96df68eb303e3c940d2b8fc596c62b
This commit is contained in:
Suren Baghdasaryan 2020-05-21 00:35:46 +00:00 committed by Automerger Merge Worker
parent 10be4c368e 747c846a5a
commit 0a55215fbe
1 changed files with 8 additions and 0 deletions
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lmkd.cpp
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@ -2386,12 +2386,20 @@ static void mp_event_psi(int data, uint32_t events, struct polling_params *poll_
snprintf(kill_desc, sizeof(kill_desc), "device is low on swap (%" PRId64
"kB < %" PRId64 "kB) and thrashing (%" PRId64 "%%)",
mi.field.free_swap * page_k, swap_low_threshold * page_k, thrashing);
/* Do not kill perceptible apps unless below min watermark */
if (wmark < WMARK_LOW) {
min_score_adj = PERCEPTIBLE_APP_ADJ + 1;
}
} else if (swap_is_low && wmark < WMARK_HIGH) {
/* Both free memory and swap are low */
kill_reason = LOW_MEM_AND_SWAP;
snprintf(kill_desc, sizeof(kill_desc), "%s watermark is breached and swap is low (%"
PRId64 "kB < %" PRId64 "kB)", wmark > WMARK_LOW ? "min" : "low",
mi.field.free_swap * page_k, swap_low_threshold * page_k);
/* Do not kill perceptible apps unless below min watermark */
if (wmark < WMARK_LOW) {
min_score_adj = PERCEPTIBLE_APP_ADJ + 1;
}
} else if (wmark < WMARK_HIGH && thrashing > thrashing_limit) {
/* Page cache is thrashing while memory is low */
kill_reason = LOW_MEM_AND_THRASHING;