asepharyana
8106f8943e
New crates: - mytheclipse-queue: unified job queue with WorkerPool, retry/backoff, DLQ Backends: in-memory (default), Redis, NATS, PostgreSQL - mytheclipse-tracing: tracing subscriber layers with env filter + OTLP/Jaeger export - mytheclipse-http: HTTP client/server with timeout + tracing, axum server - mytheclipse-cli: CLI framework with clap derive, built-in subcommands Enhancements to existing crates: - mytheclipse-core: SemaphorePool, LeaderElection, HealthRegistry/HealthCheck - mytheclipse-cache: AutoRefreshCache (bg refresh on miss), CacheMetrics - mytheclipse-config: ConfigSchema for JSON Schema generation - mytheclipse-storage: MultipartUploadDriver trait - mytheclipse-crypto: PASETO v4.local token support All features compile with --all-features; tests + clippy pass clean.
60 lines
1.4 KiB
Rust
60 lines
1.4 KiB
Rust
//! Cache instrumentation metrics (hit/miss/eviction counters).
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use std::sync::atomic::{AtomicU64, Ordering};
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/// Tracks cache hit, miss, eviction, and error counts.
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#[derive(Default)]
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pub struct CacheMetrics {
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hits: AtomicU64,
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misses: AtomicU64,
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evictions: AtomicU64,
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errors: AtomicU64,
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}
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impl CacheMetrics {
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pub fn new() -> Self {
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Self::default()
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}
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pub fn hit(&self) {
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self.hits.fetch_add(1, Ordering::Relaxed);
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}
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pub fn miss(&self) {
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self.misses.fetch_add(1, Ordering::Relaxed);
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}
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pub fn eviction(&self) {
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self.evictions.fetch_add(1, Ordering::Relaxed);
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}
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pub fn error(&self) {
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self.errors.fetch_add(1, Ordering::Relaxed);
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}
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pub fn snapshot(&self) -> CacheSnapshot {
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CacheSnapshot {
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hits: self.hits.load(Ordering::Relaxed),
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misses: self.misses.load(Ordering::Relaxed),
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evictions: self.evictions.load(Ordering::Relaxed),
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errors: self.errors.load(Ordering::Relaxed),
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}
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}
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}
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/// A point-in-time read of cache metrics.
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#[derive(Debug, Clone, PartialEq, Eq)]
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pub struct CacheSnapshot {
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pub hits: u64,
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pub misses: u64,
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pub evictions: u64,
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pub errors: u64,
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}
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impl CacheSnapshot {
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pub fn hit_rate(&self) -> f64 {
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let total = self.hits + self.misses;
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if total == 0 { 0.0 } else { self.hits as f64 / total as f64 }
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}
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}
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