Epochly Lens: Performance Analytics

Understand JIT compilation stats, CPU hotspots, latency distributions, and throughput trends in Lens.

Performance Tab

The Performance tab is available from the fleet overview (fleet-wide metrics) or from a service drill-down (per-service metrics).

Latency Timeline

A time-series chart showing average and p95 latency across your fleet or service. Use this to identify latency trends and track the impact of Epochly's optimizations over time.

Throughput Chart

Trace count over time, showing request volume across your fleet. Useful for correlating throughput changes with optimization activity.

JIT Compilation Statistics

For services at Enhancement Level 2 (JIT) or above:

• Success Rate — Percentage of JIT compilation attempts that succeeded
• Average Compilation Time — How long each JIT compilation takes
• Cache Hit Rate — How often compiled functions are served from cache vs recompiled

A high cache hit rate (>90%) indicates stable workloads where JIT compilation is highly effective.

CPU Hotspot Table

Ranked list of functions consuming the most CPU time:

Use this to identify optimization opportunities — functions that consume high CPU but aren't JIT-compiled may benefit from promotion to L2.

Alert System

Configure performance thresholds under Settings → Alerts:

• Latency threshold — Alert when p95 latency exceeds a value
• Error rate threshold — Alert when error rate exceeds a percentage
• Optimization coverage — Alert when coverage drops below a threshold

Tier limits:

• Community: No alerts
• Pro: Up to 3 alert rules
• Enterprise: Unlimited alert rules

Time Windows and Retention

Data retention depends on your tier: