c66aaf1476
Fix a type mismatch for "arenas.nlruns" mallctl access. This bug caused a crash during statistics printing on 64-bit systems. Fix the "stats.active" mallctl to include active memory in huge objects. Report active bytes for the whole application, as well as per arena. Remove several unused variables.
jemalloc is a general-purpose scalable concurrent malloc(3) implementation. The INSTALL file contains information on how to configure, build, and install jemalloc.