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AcctIdx: stats for how much time bg threads wait (#20127)

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This commit is contained in:
Jeff Washington (jwash)
2021-09-23 13:37:14 -05:00
committed by GitHub
parent fe28f17718
commit 093dd68214
2 changed files with 13 additions and 0 deletions
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7
runtime/src/bucket_map_holder.rs
View File

@ -3,6 +3,7 @@ use crate::bucket_map_holder_stats::BucketMapHolderStats;
use crate::in_mem_accounts_index::{InMemAccountsIndex, SlotT}; use crate::in_mem_accounts_index::{InMemAccountsIndex, SlotT};
use crate::waitable_condvar::WaitableCondvar; use crate::waitable_condvar::WaitableCondvar;
use solana_bucket_map::bucket_map::{BucketMap, BucketMapConfig}; use solana_bucket_map::bucket_map::{BucketMap, BucketMapConfig};
use solana_measure::measure::Measure;
use solana_sdk::clock::SLOT_MS; use solana_sdk::clock::SLOT_MS;
use solana_sdk::timing::AtomicInterval; use solana_sdk::timing::AtomicInterval;
use std::fmt::Debug; use std::fmt::Debug;
@ -157,9 +158,15 @@ impl<T: IndexValue> BucketMapHolder<T> {
let bins = in_mem.len(); let bins = in_mem.len();
let flush = self.disk.is_some(); let flush = self.disk.is_some();
loop { loop {
let mut m = Measure::start("wait");
// this will transition to waits and thread throttling // this will transition to waits and thread throttling
self.wait_dirty_or_aged self.wait_dirty_or_aged
.wait_timeout(Duration::from_millis(AGE_MS)); .wait_timeout(Duration::from_millis(AGE_MS));
m.stop();
self.stats
.bg_waiting_us
.fetch_add(m.as_us(), Ordering::Relaxed);
if exit.load(Ordering::Relaxed) { if exit.load(Ordering::Relaxed) {
break; break;
} }

6
runtime/src/bucket_map_holder_stats.rs
View File

@ -24,6 +24,7 @@ pub struct BucketMapHolderStats {
pub deletes: AtomicU64, pub deletes: AtomicU64,
pub inserts: AtomicU64, pub inserts: AtomicU64,
pub count: AtomicU64, pub count: AtomicU64,
pub bg_waiting_us: AtomicU64,
pub count_in_mem: AtomicU64, pub count_in_mem: AtomicU64,
pub per_bucket_count: Vec<AtomicU64>, pub per_bucket_count: Vec<AtomicU64>,
pub flush_entries_updated_on_disk: AtomicU64, pub flush_entries_updated_on_disk: AtomicU64,
@ -119,6 +120,11 @@ impl BucketMapHolderStats {
i64 i64
), ),
("count", self.count.load(Ordering::Relaxed), i64), ("count", self.count.load(Ordering::Relaxed), i64),
(
"bg_waiting_us",
self.bg_waiting_us.swap(0, Ordering::Relaxed),
i64
),
("min_in_bin", min, i64), ("min_in_bin", min, i64),
("max_in_bin", max, i64), ("max_in_bin", max, i64),
("count_from_bins", ct, i64), ("count_from_bins", ct, i64),