https://www.cocoawithlove.com/2010/05/look-at-how-malloc-works-on-mac.html
https://sploitfun.wordpress.com/2015/02/10/understanding-glibc-malloc/
http://phk.freebsd.dk/pubs/malloc.pdf
Tick Tock, malloc Needs a Clock
https://www.youtube.com/watch?v=RcWp5vwGlYU&feature=youtu.be&list=PLn0nrSd4xjjZoaFwsTnmS1UFj3ob7gf7s
http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.59.4350&rep=rep1&type=pdf