1. Jump to first page Web Facts and Fantasy presented by Andreas Anagnostatos CSE 291 Feb. 29, 2000 Stephen Manley, Network Appliance Margo Seltzer, Harvard University

2. Server logs

3. Site growth and traffic

4. Site Characteristics

5. n Traditional Business u Peaks indicate periods where the site was overhauled

6. n Government Agency u Users visit more pages on the site

7. n Adult Site u Search engine ranking determines traffic

8. Effects of CGI

9. Persistent Connections

10. Limiting the number of open connections n Time-out and maximum number of connections must be well balanced

11. n How many persistent connections must be allowed per client? n One connection = better network utilization n ISPs charge for connections n Latency?

12. Client Latency

13. Discussion... n Site growth correlates with one of six quantities u Number of users u Number of documents on site u Number of documents per user u Fees to access site u Search engine ranking u Web masters efforts n CGI is NOT becoming increasingly important (?) n Loaded server are NOT the main cause of latency (?) n Persistent connections improve performance (?) n