# System performance

A system-health view of your agent — session volumes, error rates, and cost over time.

The **System performance** tab is the health-monitoring view of your agent — session volumes, error rates, and cost, tracked so you can tell whether the system as a whole is behaving. It's the "are we up and steady?" view, distinct from the deeper quality analysis on the other pages. Reach it at `/dashboard?tab=performance`.

## What it is

System performance is a dashboard tab focused on operational health rather than conversation quality. It answers questions about throughput and reliability: how much traffic is flowing, how much of it is erroring, and what it's costing — all over your selected window.

## What it tracks

- **Session volumes** — how many sessions are flowing through your agent over time.
- **Error rates** — how much of that traffic is failing.
- **Cost** — what the traffic is costing (computed as described in [Cost calculation](/docs/platform/cost-calculation.md)).

**KPI cards** across the top carry the headline figures; the charts below break each one out over time.

## Filters and segmentation

The tab shares the dashboard's **global filter bar and segmentation controls**, so any filter or segment you set applies here the same way it applies across the dashboard. Narrow to a service, a time range, or a segment and every metric on the tab re-reads for that slice.

## How to act on it

1. **Watch the trend, not the instant.** A spike in error rate or cost matters more as a *change* than as an absolute number — compare against the preceding window.
2. **Segment to localize a problem.** When a rate moves, use segmentation to find which slice of traffic moved it before you go digging.
3. **Pair volume with latency.** Rising volume with steady latency is healthy growth; rising volume with climbing latency is a capacity problem — cross-check [Latency & performance](/docs/platform/latency.md).

## Availability

Any member of the tenant can view this tab. It's on by default — if you don't see it, your tenant has turned it off.

## See also

- [Latency & performance](/docs/platform/latency.md) — response-time detail to pair with these volume and error metrics.
- [Cost calculation](/docs/platform/cost-calculation.md) — how the cost figure on this tab is computed.
- [Overview](/docs/platform/overview.md) — the tenant-wide health summary.