Function record_claim_wait

components/scheduler/src/vmworkerpool.rs:418–425

Time from requesting a worker until one was handed over, in fractional milliseconds. `outcome` is how the worker was found: "preferred" (same-guild vm still alive), "lru", or "queued" (pool was empty, waited for a return — the only outcome that can block unboundedly).

(outcome: &'static str, priority_index: usize, started_at: Instant)

/// (same-guild vm still alive), "lru", or "queued" (pool was empty, waited
/// for a return — the only outcome that can block unboundedly).
fn record_claim_wait(outcome: &'static str, priority_index: usize, started_at: Instant) {
    metrics::histogram!(
        "bl.scheduler.worker_claim_wait",
        "outcome" => outcome,
        "priority_index" => priority_index.to_string(),
    )
    .record(started_at.elapsed().as_secs_f64() * 1000.0);
}

struct QueuedWorkerRequest {
    guild_id: Id<GuildMarker>,