Application Efficiency
How can you make your apps more efficient ?
By: [email protected]
Four rules of code efficiency
First, do no harm
You don't know what the problem is until you measure it
Whats under your control
Always look for the easy win
Efficiency Areas
MEMORY
DISK , FILE I/O
NETWORK I/O
ALGORITHMIC EFFICIENCY
MEMORY
Make efficient use of system memory
Prevent large swapping files
Memory is cheap, users are not
Prevent memory leaks
Measure memory usage of your applications
DISK I/O
Make efficient usage of disk storage
Make usage of faster storage mechanisms such as ssd, net
storage
Monitor your apps disk i/o and ways to optimize it
You can reduce disk i/o to make your apps more faster
Network I/O
Make lesser number of network calls
Compress the network calls in formats such as gzip
Reduce comments, blank spaces, optimize resources on network
More network I/O means more cost
Monitor your apps network I/O
Cache similar network i/o requests
Algorithmic Efficiency
Use languages inbuilt functions for doing complex tasks rather
than building your own from scratch, eg: sorting
Make efficient use of data types, data structures, memory
allocation
Make efficient use of loops & recursion
Take a sample code and think how can you make it more efficient
without having any effect on its output
PRECAUTION
Making changes for efficiency which has no noticable efficieny
gains on user experience on user expericnce is bullshit.
You are trying to make button click faster, without noticing
this thing has no effect on user experience.
