Dynamic sampling profiler

Details Dynamic sampling profiler Dynamic sampling profiler

1993-05-28

1998-07-21

Beausoliel, Jr., Robert W.

G06F 1300

Patent

active

057845549

ABSTRACT:
A dynamic adaptive sampling process for providing performance analysis on a computer system; the sampling process comprising the steps of: generating a profile tree comprising a hierarchy of one or more nodes, each node in the hierarchy comprises an array of counters, with each counter mapped to an associated range of memory locations in the computer memory. The process then receives a program counter value and searches the profile tree according to the hierarchy of nodes to locate an associated counter. The associated counter maps to a corresponding memory range of the finest partition which includes the memory location identified by the program counter value. The sampling process then detects whether the located counter exceeds a threshold value, wherein if the located counter exceeds the threshold value, then the sampling process further comprises modifying the profile tree. Wherein if the located counter does not exceed the threshold value, then incrementing that located counter.

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