On Mon, Oct 18, 2010 at 11:42, Andreas Leppert <wudmx@xxxxxx> wrote: > Hello, > > I know that I can use the perf* tools to get information about SW and HW > events while a program is running. > > I write a kernel module which needs information dynamically about the HW > status via performance counter so that the kernel module can react > appropriately. Thus I want to read out the performance counter values > while being in the kernel (module), and so I cannot use the above > mentioned perf* tools. How about mimic-ing the way oprofile user space tool reading info provided by oprofile kernel module? Surely there must be reusable APIs there.... or netlink or something... -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ