Let's ship libumem as our default memory allocator for Riak!

[gburd]

libumem has proven itself under massive customer load on SmartOS for months now. It's support for efficient concurrent allocation on multi-core/cpu systems is excellent, it's debugging features handy, and it's stability is qed. Too bad it only runs on Solaris...

Enter "portable libumem" (https://labs.omniti.com/labs/portableumem) a project sponsored by our friends at OmniTI. A nice port of libumem to Linux, *BSD, OSX and even Windows. But wait, this version of umem doesn't have the fixes we've recently added in Joyent's SmartOS...

Enter https://github.com/gburd/libumem which is portable umem + the fixes from the latest SmartOS tree (yay!).

This is an enhancement request for us to ship Riak with libumem included as the default allocator. If we do this we'll want to set the following two environment variables in our startup bash script:

LD_PRELOAD=/path/to/libumem.so.1
UMEM_OPTIONS=allocator=best

[jaredmorrow]

There has been no activity on this for 2 years, so I will close it. If someone wants to dig hard into this, feel free to reopen.