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Add LRU cache to database (#837)

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* Add LRU caches to store

* Improvements to LRU caches

* Take state by value in `Store::put_state`

* Store blocks by value, configurable cache sizes

* Use a StateBatch to efficiently store skip states

* Fix store tests

* Add CloneConfig test, remove unused metrics

* Use Mutexes instead of RwLocks for LRU caches
This commit is contained in:
Michael Sproul
2020-02-10 11:30:21 +11:00
committed by GitHub
parent c3182e3c1c
commit e0b9fa599f
29 changed files with 514 additions and 385 deletions
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24
beacon_node/store/src/metrics.rs
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@@ -46,6 +46,22 @@ lazy_static! {
/*
* Beacon State
*/
pub static ref BEACON_STATE_GET_COUNT: Result<IntCounter> = try_create_int_counter(
"store_beacon_state_get_total",
"Total number of beacon states requested from the store (cache or DB)"
);
pub static ref BEACON_STATE_HOT_GET_COUNT: Result<IntCounter> = try_create_int_counter(
"store_beacon_state_hot_get_total",
"Total number of hot beacon states requested from the store (cache or DB)"
);
pub static ref BEACON_STATE_CACHE_HIT_COUNT: Result<IntCounter> = try_create_int_counter(
"store_beacon_state_cache_hit_total",
"Number of hits to the store's state cache"
);
pub static ref BEACON_STATE_CACHE_CLONE_TIME: Result<Histogram> = try_create_histogram(
"store_beacon_state_cache_clone_time",
"Time to load a beacon block from the block cache"
);
pub static ref BEACON_STATE_READ_TIMES: Result<Histogram> = try_create_histogram(
"store_beacon_state_read_seconds",
"Total time required to read a BeaconState from the database"
@@ -81,6 +97,14 @@ lazy_static! {
/*
* Beacon Block
*/
pub static ref BEACON_BLOCK_GET_COUNT: Result<IntCounter> = try_create_int_counter(
"store_beacon_block_get_total",
"Total number of beacon blocks requested from the store (cache or DB)"
);
pub static ref BEACON_BLOCK_CACHE_HIT_COUNT: Result<IntCounter> = try_create_int_counter(
"store_beacon_block_cache_hit_total",
"Number of hits to the store's block cache"
);
pub static ref BEACON_BLOCK_READ_TIMES: Result<Histogram> = try_create_histogram(
"store_beacon_block_read_overhead_seconds",
"Overhead on reading a beacon block from the DB (e.g., decoding)"