Abstract: A profiling implementation method for reducing overhead while an application is running with profiling instrumentation inserted but disabled; the method for gathering precise profiling data for a subset of observed values at runtime start; generating an index for each observed value; populating one or more data structures within a hash table with the subset of observed values to count; comparing a corresponding key at the index value of an observed value index; evaluating a value limit of the hash table; incrementing a matched key counter; incrementing an alt-counter; locking the hash table; and updating one or more data structures of the hash table.

Abstract: An approach is provided in which an information handling system selects an assumption point in a software program corresponding to a compile-time assumption made by a compiler, and selects an assumption violation point in the software program corresponding to a location at which the compile-time assumption can be violated at runtime. The information handling system propagates backwards in the software program from the assumption point and reaches the assumption violation point. The information handling system determines that the assumption point corresponds to a first method and the assumption violation point corresponds to a second method that is different from the first method, and inserts a conditional transition in the software program at the assumption violation point. The information handling system executes a compiled version of the software program that includes the conditional transition.

Abstract: A profiling implementation method for reducing overhead while an application is running with profiling instrumentation inserted but disabled; the method for gathering precise profiling data for a subset of observed values at runtime start; generating an index for each observed value; populating one or more data structures within a hash table with the subset of observed values to count; comparing a corresponding key at the index value of an observed value index; evaluating a value limit of the hash table; incrementing a matched key counter; incrementing an alt-counter; locking the hash table; and updating one or more data structures of the hash table.

Abstract: An approach is provided in which an information handling system selects a first point in a software program corresponding to a compile-time assumption made by a compiler. The information handling system then selects a set of second points in the software program corresponding to a set of locations at which the compile-time assumption can be violated at runtime. Next, the information handling system starts at the first point and propagates backwards in the software program to identify one or more of the second points that are reached from the backwards propagation. The information handling system then inserts conditional transitions in the software program at each of the identified assumption violation points and executes a compiled version of the software program, resulting in an evaluation of the compile-time assumption at the conditional transitions.

Abstract: A profiling implementation method for reducing overhead while an application is running with profiling instrumentation inserted but disabled; the method for gathering precise profiling data for a subset of observed values at runtime start; generating an index for each observed value; populating one or more data structures within a hash table with the subset of observed values to count; comparing a corresponding key at the index value of an observed value index; evaluating a value limit of the hash table; incrementing a matched key counter; incrementing an alt-counter; locking the hash table; and updating one or more data structures of the hash table.

Abstract: A profiling implementation method for reducing overhead while an application is running with profiling instrumentation inserted but disabled; the method for gathering precise profiling data for a subset of observed values at runtime start; generating an index for each observed value; populating one or more data structures within a hash table with the subset of observed values to count; comparing a corresponding key at the index value of an observed value index; evaluating a value limit of the hash table; incrementing a matched key counter; incrementing an alt-counter; locking the hash table; and updating one or more data structures of the hash table.

Abstract: An approach is provided in which an information handling system selects an assumption point in a software program corresponding to a compile-time assumption made by a compiler, and selects an assumption violation point in the software program corresponding to a location at which the compile-time assumption can be violated at runtime. The information handling system propagates backwards in the software program from the assumption point and reaches the assumption violation point. The information handling system determines that the assumption point corresponds to a first method and the assumption violation point corresponds to a second method that is different from the first method, and inserts a conditional transition in the software program at the assumption violation point. The information handling system executes a compiled version of the software program that includes the conditional transition.

Abstract: An approach is provided in which an information handling system selects a first point in a software program corresponding to a compile-time assumption made by a compiler. The information handling system then selects a set of second points in the software program corresponding to a set of locations at which the compile-time assumption can be violated at runtime. Next, the information handling system starts at the first point and propagates backwards in the software program to identify one or more of the second points that are reached from the backwards propagation. The information handling system then inserts conditional transitions in the software program at each of the identified assumption violation points and executes a compiled version of the software program, resulting in an evaluation of the compile-time assumption at the conditional transitions.