Hi, It is a newbie question. I would be really thankful if you can answer it please. I want to compile the Ceph source code. Because I want to profile *Librados* and *CRUSH* function stacks. Please verify if this is the right track I am following: - I have cloned the Ceph from Ceph git repository - I have installed the build code dependencies from script *install-deps.sh* - Because I would like to use the* gdb debug* client program later, the client program will depend on the librados library, so I must compile ceph in debug mode. Therefore I would modify the parameters of ceph cmake in *do_cmake.sh* script accordingly. - Then I compile *do_cmake* *- *In build I run* make - j 32* *- *To start the developer mode, I run *make vstart.* *- *In the developer mode I can write *READ* and *WRITE* tests...compile these tests and then use some profiling tool to call the compiled executable to profile the function stacks. Is this the correct way for *CPU profiling*? Please let me know if it is fine or is there something more also. Bobby !