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Add accounts stats for space amplification (#21151)

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This commit is contained in:
sakridge
2021-11-03 08:41:29 -07:00
committed by GitHub
parent 780302af56
commit c14864a608
1 changed files with 16 additions and 0 deletions
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16
runtime/src/accounts_db.rs
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@ -4391,6 +4391,8 @@ impl AccountsDb {
let mut max_slot = 0;
let mut newest_slot = 0;
let mut oldest_slot = std::u64::MAX;
let mut total_bytes = 0;
let mut total_alive_bytes = 0;
for iter_item in self.storage.0.iter() {
let slot = iter_item.key();
let slot_stores = iter_item.value().read().unwrap();
@ -4411,9 +4413,20 @@ impl AccountsDb {
if *slot < oldest_slot {
oldest_slot = *slot;
}
for store in slot_stores.values() {
total_alive_bytes += Self::page_align(store.alive_bytes() as u64);
total_bytes += store.total_bytes();
}
}
info!("total_stores: {}, newest_slot: {}, oldest_slot: {}, max_slot: {} (num={}), min_slot: {} (num={})",
total_count, newest_slot, oldest_slot, max_slot, max, min_slot, min);
let total_alive_ratio = if total_bytes > 0 {
total_alive_bytes as f64 / total_bytes as f64
} else {
0.
};
datapoint_info!(
"accounts_db-stores",
("total_count", total_count, i64),
@ -4422,6 +4435,9 @@ impl AccountsDb {
self.recycle_stores.read().unwrap().entry_count() as u64,
i64
),
("total_bytes", total_bytes, i64),
("total_alive_bytes", total_alive_bytes, i64),
("total_alive_ratio", total_alive_ratio, f64),
);
datapoint_info!(
"accounts_db-perf-stats",