Abstract: Indicating usage in a system is disclosed. Indicating includes obtaining active thread information related to a number of hardware threads in a processor core, combining the active thread information with information related to a decreasing ability of the processor core to increase throughput by utilizing additional hardware threads, and indicating the usage in the system based at least in part on both the active thread information and the ability of the processor core to increase throughput by utilizing additional hardware threads.

Abstract: Improving performance of a computer program is disclosed. A first set of escape data is gathered. A first compiled program is provided using the first set of escape data. A second set of escape data is gathered based on the first compiled program. A second compiled program is provided using the second set of escape data. The second compiled program is more optimized than the first compiled program.

Abstract: A technique for managing an object in memory is disclosed. The technique comprises: assigning the object to an assigned frame wherein the object can be released when the assigned frame is released; detecting an attempt to place a reference to the object in an older frame, the older frame being older than the assigned frame; and reassigning the object to a reassignment frame that is at least as old as the older frame.

Abstract: Scheduling instructions by eliminating COPY instructions to reduce code size and increase performance in a computer program compiler. According to one embodiment of the present invention COPY instructions are coalesced prior to preparing a ready list. The ready list is polled and instructions selected for scheduling. After selection of a next instruction, liveness conflicts are determined, where a live register contains a valid value that is needed at a later step. Conflicts are then resolved and instruction scheduling continues. The process is continued until the ready list is empty.