Multi-threading and optimizing speed-up (Infographic)

Below is an #infographic about how a multi-threaded application in general behaves, including text balloons with suggestions about where to look for improvements.

I created it because I wanted to explain to a colleague what I did to improve Lucene’s faceting performance using 16 CPU cores.

I hope it speaks for itself.

Infographic about Multi-threading

Infographic about Analyzing and Optimizing Multi-threading (and why you don’t see linear speed-up in most practical cases)