This is a Not Very Good heap analyzer for MRI. It is not very good.
You can see the current version here.
It processes MRI heap dumps in your browser.
After you upload your heap dump, it will it will show you a break down of:
- Number of allocations per generation
- Numbers of per type
- Classes by memory size
- Methods by allocation size
- Gems by allocation size
If you click a slice of the pie, it will show you all allocations for that type in the table below like this:
If you click a row in the table, it will add a new table that lists the objects that point to the object you clicked.
Hovering over a row will show you the allocation location (if it's available):
You can use any heap dumps from ObjectSpace.dump_all, but the index file
gives an example of dumping the heap for a Rails app.
It has bugs, so please send pull requests. It is slow, so please send pull requests. It doesn't look very good, so please send pull requests.
Also, please send pull requests.
Building the giant table is pretty slow, I would like to speed that up.
When you click a row to view the objects that point to that object, it inserts a new table. Unfortunately that is very slow and doesn't look very good. I'd like to fix both of those problems.