Measuring Performance

Monitor Along the Transaction












Performance Tools

1. Manual Page Measurement - Firefox+Firebug+Yslow, AOL Pagetest, IBM Page Detailer, Keynote KITE
2. Real User Monitoring - Coradiant Truesight + Web.I, Tealeaf, Others
3. Internal Synthetic Monitoring - HP/Mercury SiteScope + BAC, Nagios, Many Others
4. External Synthetic Monitoring – Keynote, Gomez, WebMetrics
5. Network Analysis – Wireshark, Clearsight, ACE, NetQoS
6. In Depth Metrics – Opnet Panorama, Introscope, Quest (DB), many others
7. Load Testing – HP/Mercury LoadRunner, Jmeter, ab, many other

Monitoring Drawbacks

• Manual Page Measurement – Different results lead to contention between stakeholder groups
• Real User Monitoring – Very network setup dependent
• Internal Synthetic Monitoring – Generates load, can sneak into reporting
• External Synthetic Monitoring – Generates load, can sneak into reporting
• Network Analysis – Information is buried and only useful in narrow scope
• In Depth Metrics – Agents cause problems
• Load Testing – Good load testing is an art unto itself
• JavaScript/Page Beacons – Our experience with Web analytic based on these indicates up to 10% unreliability