Interesting Learning Notes

Note #1 - What is difference between performance and scalability problem ?

• Performance problem - Fixing performance issue for a website example - Pageload time is very high for homepage of website
• Scalability problem - Scaling website to support 10X user base than current user base

This post was very useful for above answer Performance v Scalability – For Employers

Note #2 - Read / Write Advantages / Disadvantages for Normalized / Denomarmalized Databases ?

• Normalized - Insert in multiple tables, Highly consistent
• Denormalized - Easy Insert, Consistency issue with updates (Multiple  versions of Records may exist)

I loved reading this post again and again - Data storages and read vs write controversy. Post is Very Simple, intuitive and clear.

Session - Advanced techniques for Web functional testing

• Tip #1 - Changing window size during execution set_window_size
• Tip #2 - Screenshots comparison using needle (Python based)

More Reads

Successful Scalability Principles

Bayesian statistics made simple

Software Carpentry: Lessons Learned

Performance Testing and Profiling: A Virtuous Cycle

Happy Learning!!!