> Thanks, I have tried using the PowerTop application and modified to see it for dual core but i am not able to get the proper results (c > state information for second core is not proper) also I have found through the PowerTop developers that the application is not suitable > for full load power measurement. I am not quite sure what does the idle mode means though i think it means that no user level > applications are running. I am not able to further use the PowerTop as it doesn't provide mechanism for changing the processor state by > user and I guess there are only few utilities for doing frequency scaling like cpfreq-set utility, I need to develop customized > utility. I would like to know how I can develop my own utility using ACPI if it is feasible? Also if any specific development > environment is required to do so? I don't understand what your goal is, and thus I'm unable to help you reach it. -Len -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html