1. Powered by 3PILLAR LABS HAILSTORM 4.0 TM PERFORMANCE REPORT

2. WORKLOAD DESIGN © Copyright 2012 3PILLAR GLOBAL All rights reserved 2 Home Page Login Page Login Process Browse Category Browsing Detail Page Search #Total Duration (minutes) Ramp up Time (minutes) Concurrent Users 115525 215550 315575 4155100 Load Cluster: Amazon EC2, Virginia

3. PERFORMANCE SUMMARY Observations Sharp rise in response time for over 50 users “Detail Page” degrades significantly for 75 users and above System is stable but peaks out at 75 concurrent users and starts degrading at 100 users Maximum throughput of 3.2 transactions per second at 75 users is low © Copyright 2012 3PILLAR GLOBAL All rights reserved 3

4. ITERATION 1 – 25 USERS © Copyright 2012 3PILLAR GLOBAL All rights reserved 4 PageResponse time Avg. (ms) Response time 90tile (ms) % errors Home Page 476930 0.0 Login Page 442512 0.0 Login 427564 0.0 Browse 791915 0.0 Category Browsing 11321299 0.0 Detail Page 17931971 0.0 Search 775893 0.0

5. ITERATION 2 – 50 USERS © Copyright 2012 3PILLAR GLOBAL All rights reserved 5 PageResponse time Avg. (seconds) Response time 90tile (seconds) % errors Home Page 573919 0.0 Login Page 485626 0.0 Login 471595 0.0 Browse 9671222 0.0 Category Browsing 13701659 0.0 Detail Page 23432789 0.0 Search 9161123 0.0

6. ITERATION 3 – 75 USERS © Copyright 2012 3PILLAR GLOBAL All rights reserved 6 PageResponse time Avg. (ms) Response time 90tile (ms) % errors Home Page 138422930.0 Login Page 5597640.0 Login 105017400.0 Browse 199628980.25 Category Browsing 255336010.0 Detail Page 536872310.27 Search 205429480.0

7. ITERATION 4 – 100 USERS © Copyright 2012 3PILLAR GLOBAL All rights reserved 7 PageResponse time Avg. (seconds) Response time 90tile (seconds) % errors Home Page 9962154210.0 Login Page 6979450.0 Login 626797320.0 Browse 11989166630.0 Category Browsing 13942181670.0 Detail Page 33864422930.96 Search 13543175140.0

8. RECOMMENDATIONS © Copyright 2012 3PILLAR GLOBAL All rights reserved 8 Low throughput investigation –Check application/system level synchronization locks –Check server disk IO speed –Ensure sufficient RAM –Use GZIP compression of HTTP content –Use server farm with load balancer Slow “Detail Page” investigation –Check cache invalidation rules –Check available memory to cache subsystem –Check database indexes on query

9. HAILSTORM FRAMEWORK Controls EC2 instances Manages remote JMeter Generates reports Monitors test system © Copyright 2012 3PILLAR GLOBAL All rights reserved 9