ycsb: better loading output
kvdb: record size stats
macros: better padout macro
core: percore_lazy no longer allocates separate buffers

keep all memory laid out just like percore
align_padded_elem: sanity check alignment
percore_lazy: fix up implementation

also set some alignment up w/ static variables
benchmark: pad out buffers to at least two cachelines to avoid false sharing

grr this took way to long to figure out
runner: fix binary paths