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CoreMetrics

amaters_core::metrics

Struct CoreMetrics 

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pub struct CoreMetrics {
Show 17 fields
    pub lsm_get_total: AtomicU64,
    pub lsm_put_total: AtomicU64,
    pub lsm_delete_total: AtomicU64,
    pub lsm_compaction_total: AtomicU64,
    pub lsm_wal_writes_total: AtomicU64,
    pub cache_hits_total: AtomicU64,
    pub cache_misses_total: AtomicU64,
    pub cache_evictions_total: AtomicU64,
    pub buffer_allocations_total: AtomicU64,
    pub buffer_recycles_total: AtomicU64,
    pub buffer_pool_misses_total: AtomicU64,
    pub fhe_encrypt_us_total: AtomicU64,
    pub fhe_decrypt_us_total: AtomicU64,
    pub fhe_operation_count: AtomicU64,
    pub memtable_size_bytes: AtomicU64,
    pub sstable_count: AtomicU64,
    pub compaction_level: AtomicU64,
    /* private fields */

}
Expand description

Metrics facade for the amaters-core storage engine.

All fields are updated via atomic operations for lock-free access from multiple threads. Call to_prometheus() to get an OpenMetrics/Prometheus text snapshot.

Fields§

§lsm_get_total: AtomicU64§lsm_put_total: AtomicU64§lsm_delete_total: AtomicU64§lsm_compaction_total: AtomicU64§lsm_wal_writes_total: AtomicU64§cache_hits_total: AtomicU64§cache_misses_total: AtomicU64§cache_evictions_total: AtomicU64§buffer_allocations_total: AtomicU64§buffer_recycles_total: AtomicU64§buffer_pool_misses_total: AtomicU64§fhe_encrypt_us_total: AtomicU64§fhe_decrypt_us_total: AtomicU64§fhe_operation_count: AtomicU64§memtable_size_bytes: AtomicU64§sstable_count: AtomicU64§compaction_level: AtomicU64

Implementations§

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impl CoreMetrics

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pub fn new() -> Arc<Self>

Create a new CoreMetrics wrapped in an Arc.

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pub fn record_get_latency_us(&self, us: u64)

Record a GET operation latency in microseconds.

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pub fn record_put_latency_us(&self, us: u64)

Record a PUT operation latency in microseconds.

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pub fn cache_hit_rate(&self) -> f64

Compute the block cache hit rate as a value in [0.0, 1.0].

Returns 0.0 when no cache events have been recorded.

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pub fn to_prometheus(&self) -> String

Render all metrics as an OpenMetrics/Prometheus text exposition.

Trait Implementations§

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impl Default for CoreMetrics

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fn default() -> Self

Returns the “default value” for a type. Read more

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