On 04/21/11 01:46, Francis Moreau wrote: > Hello, > > Sorry if the question is dumb but I'm a bit lost about this. > > I know that ftrace exists but I think that perf can do this too: I > have a userspace application which is calling a libc C function (read) > which ends up doing a sys_read. > > For the sys_read, I'd like to see what's happening in the kernel by > displaying the call graph. > > Can perf do that ?
Have you tried 'perf record -g'? David > > If so, would it be possible to point me out the perf command to use ? > > Thanks -- To unsubscribe from this list: send the line "unsubscribe linux-perf-users" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
