Judy Usage Examples
The author attempted to write interesting application notes using
advanced features of Judy. However, some may be a little out of date.
How to use Judy to create a scalable hash table with outstanding
performance and automatic scaling, while avoiding the complexity of
Determine which of a set of variable-size objects residing in memory
contains a specific address.
Intro to how JudyL was used to create an associative array (JudySL).
How can the sum of a set of array values over a large, arbitray, spans
of data quickly be determined? That is, how can the sum be determined
faster than summing each individual value?
Given a set of rectangles, how quickly can you find all the rectangles
that touch any given rectangle? Touch means that if you considered
the rectangles to be solid, there would be at least one point in
How does disk cache size affect performance for accessing large (
terabyte or greater) disk units? Or at a more detailed level, how can
we rapidly count the number of unique disk I/O requests that take
place between any two requests for the same disk address?