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increase bin count for hash scan (#17562)

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Jeff Washington (jwash) 2021-06-04 10:53:13 -05:00 committed by GitHub
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runtime/src/accounts_db.rs
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@ -4517,7 +4517,7 @@ impl AccountsDb {
let mut scan_and_hash = move || { let mut scan_and_hash = move || {
// When calculating hashes, it is helpful to break the pubkeys found into bins based on the pubkey value. // When calculating hashes, it is helpful to break the pubkeys found into bins based on the pubkey value.
// More bins means smaller vectors to sort, copy, etc. // More bins means smaller vectors to sort, copy, etc.
const PUBKEY_BINS_FOR_CALCULATING_HASHES: usize = 64; const PUBKEY_BINS_FOR_CALCULATING_HASHES: usize = 256;
// # of passes should be a function of the total # of accounts that are active. // # of passes should be a function of the total # of accounts that are active.
// higher passes = slower total time, lower dynamic memory usage // higher passes = slower total time, lower dynamic memory usage