clean stats on acct idx lookup (#20632)
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c43b6e0248
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@ -2002,6 +2002,10 @@ impl AccountsDb {
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let total_keys_count = pubkeys.len();
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let mut accounts_scan = Measure::start("accounts_scan");
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let uncleaned_roots_len = self.accounts_index.uncleaned_roots_len();
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let found_not_zero_accum = AtomicU64::new(0);
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let not_found_on_fork_accum = AtomicU64::new(0);
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let missing_accum = AtomicU64::new(0);
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// parallel scan the index.
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let (mut purges_zero_lamports, purges_old_accounts) = {
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let do_clean_scan = || {
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@ -2010,6 +2014,9 @@ impl AccountsDb {
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.map(|pubkeys: &[Pubkey]| {
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let mut purges_zero_lamports = HashMap::new();
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let mut purges_old_accounts = Vec::new();
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let mut found_not_zero = 0;
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let mut not_found_on_fork = 0;
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let mut missing = 0;
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for pubkey in pubkeys {
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match self.accounts_index.get(pubkey, None, max_clean_root) {
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AccountIndexGetResult::Found(locked_entry, index) => {
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@ -2021,6 +2028,8 @@ impl AccountsDb {
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self.accounts_index
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.roots_and_ref_count(&locked_entry, max_clean_root),
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);
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} else {
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found_not_zero += 1;
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}
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// Release the lock
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let slot = *slot;
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@ -2042,11 +2051,17 @@ impl AccountsDb {
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// Also, this pubkey must have been touched by some slot since
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// it was in the dirty list, so we assume that the slot it was
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// touched in must be unrooted.
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not_found_on_fork += 1;
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purges_old_accounts.push(*pubkey);
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}
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AccountIndexGetResult::Missing(_lock) => {}
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AccountIndexGetResult::Missing(_lock) => {
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missing += 1;
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}
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};
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}
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found_not_zero_accum.fetch_add(found_not_zero, Ordering::Relaxed);
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not_found_on_fork_accum.fetch_add(not_found_on_fork, Ordering::Relaxed);
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missing_accum.fetch_add(missing, Ordering::Relaxed);
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(purges_zero_lamports, purges_old_accounts)
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})
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.reduce(
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@ -2202,6 +2217,17 @@ impl AccountsDb {
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("delta_key_count", key_timings.delta_key_count, i64),
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("dirty_pubkeys_count", key_timings.dirty_pubkeys_count, i64),
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("total_keys_count", total_keys_count, i64),
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(
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"scan_found_not_zero",
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found_not_zero_accum.load(Ordering::Relaxed),
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i64
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),
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(
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"scan_not_found_on_fork",
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not_found_on_fork_accum.load(Ordering::Relaxed),
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i64
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),
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("scan_missing", missing_accum.load(Ordering::Relaxed), i64),
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("uncleaned_roots_len", uncleaned_roots_len, i64),
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(
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"clean_old_root_us",
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