https://github.com/jemalloc/jemalloc/
https://github.com/jemalloc/jemalloc/releases
cd /usr/local/src
lynx https://github.com/jemalloc/jemalloc/releases/download/5.2.1/jemalloc-5.2.1.tar.bz2
tar jxf jemalloc-5.2.1.tar.bz2
cd jemalloc-5.2.1
./configure --prefix=/usr/local/jemalloc
make
make check
make install
make clean