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Evicts from the accounts read cache in the background #575

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Merged
brooksprumo merged 3 commits into from
Apr 8, 2024
Merged

Evicts from the accounts read cache in the background #575

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2233e00
Evicts from the accounts read cache in the background
brooksprumo Apr 4, 2024
f01470d
pr: use 400 MB for both high and low watermarks
brooksprumo Apr 5, 2024
9c68dd9
doc: spoils -> spoiled
brooksprumo Apr 7, 2024
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9 changes: 6 additions & 3 deletions accounts-db/src/accounts_db.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -2311,8 +2311,10 @@ impl AccountsDb {
accounts_hash_cache_path: Option<PathBuf>,
) -> Self {
let num_threads = get_thread_count();
// 400M bytes
const MAX_READ_ONLY_CACHE_DATA_SIZE: usize = 400_000_000;
// The high and low watermark sizes for the accounts read cache. If the cache size exceeds
// MAX_SIZE_HI, it'll evict entries until the size is <= MAX_SIZE_LO.
const MAX_READ_ONLY_CACHE_DATA_SIZE_LO: usize = 400_000_000;
const MAX_READ_ONLY_CACHE_DATA_SIZE_HI: usize = 400_000_000;
// read only cache does not update lru on read of an entry unless it has been at least this many ms since the last lru update
const READ_ONLY_CACHE_MS_TO_SKIP_LRU_UPDATE: u32 = 100;

Expand Down Expand Up @@ -2352,7 +2354,8 @@ impl AccountsDb {
accounts_cache: AccountsCache::default(),
sender_bg_hasher: None,
read_only_accounts_cache: ReadOnlyAccountsCache::new(
MAX_READ_ONLY_CACHE_DATA_SIZE,
MAX_READ_ONLY_CACHE_DATA_SIZE_LO,
MAX_READ_ONLY_CACHE_DATA_SIZE_HI,
READ_ONLY_CACHE_MS_TO_SKIP_LRU_UPDATE,
),
uncleaned_pubkeys: DashMap::new(),
Expand Down
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