valence_core/instrumentation/
timing.rs

1//! Wall-time helpers for mutation and query instrumentation.
2
3use std::time::Instant;
4
5use super::metrics;
6
7/// Timer for mutation wall time (L1).
8pub struct MutationTimer {
9    operation: &'static str,
10    start: Instant,
11}
12
13impl MutationTimer {
14    pub fn start(operation: &'static str) -> Self {
15        Self {
16            operation,
17            start: Instant::now(),
18        }
19    }
20
21    pub fn finish(self) {
22        let ms = self.start.elapsed().as_secs_f64() * 1000.0;
23        metrics::record_mutation_wall_ms(self.operation, ms);
24    }
25}
26
27pub struct QueryTimer {
28    start: Instant,
29}
30
31impl QueryTimer {
32    pub fn start(_primary_table: impl Into<String>, _query_target: impl Into<String>) -> Self {
33        Self {
34            start: Instant::now(),
35        }
36    }
37
38    pub fn elapsed_ms(&self) -> i64 {
39        self.start.elapsed().as_millis() as i64
40    }
41}

valence_core/instrumentation/timing.rs

valence_core/instrumentation/
timing.rs