Include Memsize (Kilobytes) for Gc profiler (Ruby Edition)

[nathany]

Including the Kilobyte size for objects in with the ?pp=profile-gc option, and sorting by it.

• [ ] ensure memsize_of is supported on various Rubies or feature flag it

[nathany]

I'm also experimenting with separate sorted lists (by memsize and by object count) rather than one containing both.

[nathany]

I modified diff_object_stats to handle both the object count and size.

At the moment I'm adapting this code to our unicorn config to log this data whenever a unicorn dies. This is an example of two separate sorted lists instead of combining the data into one.

Unicorn master intercepting TERM and sending myself QUIT instead
pid=85998 : RubyVM::InstructionSequence : 42022K
pid=85998 : Thread : 2050K
pid=85998 : Class : 1587K
pid=85998 : Hash : 915K
pid=85998 : String : 830K
pid=85998 : Module : 744K
pid=85998 : Regexp : 352K
pid=85998 : Array : 63K
pid=85998 : Rails::Paths::Root : 13K
pid=85998 : File : 8K
pid=85998 : Random : 2K
pid=85998 : RubyVM : 1K

pid=85998 : String : 203189
pid=85998 : RubyVM::InstructionSequence : 42124
pid=85998 : Array : 36421
pid=85998 : Hash : 6889
pid=85998 : Proc : 6414
pid=85998 : RubyVM::Env : 6348
pid=85998 : Class : 3646
pid=85998 : Regexp : 313
...

[dixon]

We have moved this project to https://github.com/MiniProfiler/rack-mini-profiler - would you please make your changes there? Thank you!

[nathany]

Thanks.

I'll get to it one of these days.

[SamSaffron]

@nathany be sure to check out my talk

http://www.youtube.com/watch?v=LWyEWUD-ztQ

and memory_profiler

https://github.com/SamSaffron/memory_profiler

[nathany]

@SamSaffron Thanks. Will do.