Hi paraschopra, There are many tools, depending on what you are doing (io, network, memory, cpu). In my case, the problems are with the tools written by us for

Hi paraschopra, There are many tools, depending on what you are doing (io, network, memory, cpu). In my case, the problems are with the tools written by us for our studio, so we just use our own profilers that the tools are compiled with (check DEJA, DressCode). It's only for code where we don't have source code, or we don't have time to put profiling probes then we use external tools - for example VerySleepy for sampling, or some of the SysInternals tools. But sometimes the answer is just few clicks of google, or serverfault.com / userfault.com, etc.