Cycles: A precious performance profile tool using rdstc

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
ObjectStoreBenchmark: Used to perf ObjectStore::Transaction

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
common/Initialize.h: add header file to Makefile.am

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>
Merge pull request #3043 from yuyuyu101/objectstore-perf

Objectstore::Transaction Perf Program

Reviewed-by: Sage Weil <sage@redhat.com>