91 lines
2.5 KiB
Rust
91 lines
2.5 KiB
Rust
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use {
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crate::blockstore_meta::SlotMeta, bitflags::bitflags, lru::LruCache, solana_sdk::clock::Slot,
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};
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const SLOTS_STATS_CACHE_CAPACITY: usize = 300;
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macro_rules! get_mut_entry (
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($cache:expr, $key:expr) => (
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match $cache.get_mut(&$key) {
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Some(entry) => entry,
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None => {
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$cache.put($key, SlotStats::default());
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$cache.get_mut(&$key).unwrap()
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}
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}
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);
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);
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#[derive(Copy, Clone, Debug)]
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pub(crate) enum ShredSource {
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Turbine,
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Repaired,
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Recovered,
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}
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bitflags! {
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#[derive(Default)]
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struct SlotFlags: u8 {
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const DEAD = 0b00000001;
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const FULL = 0b00000010;
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const ROOTED = 0b00000100;
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}
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}
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#[derive(Default)]
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struct SlotStats {
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flags: SlotFlags,
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num_repaired: usize,
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num_recovered: usize,
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}
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pub(crate) struct SlotsStats(LruCache<Slot, SlotStats>);
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impl Default for SlotsStats {
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fn default() -> Self {
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// LruCache::unbounded because capacity is enforced manually.
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Self(LruCache::unbounded())
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}
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}
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impl SlotsStats {
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pub(crate) fn add_shred(&mut self, slot: Slot, source: ShredSource) {
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let entry = get_mut_entry!(self.0, slot);
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match source {
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ShredSource::Turbine => (),
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ShredSource::Repaired => entry.num_repaired += 1,
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ShredSource::Recovered => entry.num_recovered += 1,
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}
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self.maybe_evict_cache();
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}
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pub(crate) fn set_full(&mut self, slot_meta: &SlotMeta) {
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let total_time_ms =
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solana_sdk::timing::timestamp().saturating_sub(slot_meta.first_shred_timestamp);
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let last_index = slot_meta
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.last_index
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.and_then(|ix| i64::try_from(ix).ok())
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.unwrap_or(-1);
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let entry = get_mut_entry!(self.0, slot_meta.slot);
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if !entry.flags.contains(SlotFlags::FULL) {
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datapoint_info!(
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"shred_insert_is_full",
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("total_time_ms", total_time_ms, i64),
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("slot", slot_meta.slot, i64),
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("last_index", last_index, i64),
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("num_repaired", entry.num_repaired, i64),
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("num_recovered", entry.num_recovered, i64),
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);
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}
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entry.flags |= SlotFlags::FULL;
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self.maybe_evict_cache();
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}
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fn maybe_evict_cache(&mut self) {
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while self.0.len() > SLOTS_STATS_CACHE_CAPACITY {
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let (_slot, _entry) = self.0.pop_lru().unwrap();
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// TODO: submit metrics for (slot, entry).
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}
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}
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}
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