System and method for using hardware performance monitors to evaluate and modify the behavior of an application during execution of the application

A system for utilizing a hardware performance monitor for improving performance of an application comprising a plurality of instructions while the application is executing on a hardware, the system comprising:

• a compiler for generating a machine internal representation (MIR) for the plurality of instructions or a subset thereof for the hardware and generating an executable (EXE) from the MIR for execution on the hardware;
• a hardware performance monitor (HPM) subsystem for determining HPM information for an event associated with a resource of the hardware during execution of the EXE to determine one or more instructions of the application that affect the execution of the application on the hardware;
• and
• a controller for re-computing the MIR according to the HPM information and directing the compiler to re-generate the EXE from the re-computed MIR for execution on the hardware if the MIR and the re-computed MIR are different, thereby improving utilization of the resource by the application.

A program storage device, tangibly embodying a program of instructions executable by a machine to perform a method for utilizing a hardware performance monitor for improving performance of an application comprising a plurality of instructions while the application is executing on a hardware, the method comprising the steps of:

• (a) creating a machine internal representation (MIR) for the plurality of instructions or a subset thereof for the hardware and generating an executable (EXE) from the MIR for execution on the hardware;
• (b) determining hardware performance monitor (HPM) information for an event associated with a resource of the hardware during execution of the EXE to identify one or more instructions of the application that affect the execution of the application on the hardware;
• (c) re-computing the MIR according to the HPM information;
• and
• (d) re-generating the EXE from the re-computed MIR for execution on the hardware if the MIR and the re-computed MIR are different, thereby improving utilization of the resource by the application.