Method for performing dynamic optimization of computer code

A machine-readable medium having stored thereon data representing sequences of instructions, said sequences of instructions which, when executed by a processor, cause said processor to:

• divide a program into code regions, each code region comprises a method body or a program loop;
• compile a first code region into a first object code region, said compiling including placing path profiling instrumentation into said first object code region such that path profiling is performed for each code region;
• execute said first object code region, said executing including counting taken execution paths in said first object code region;
• and
• dynamically optimize said hot execution path by
• selecting a first path through the source code regions as the hot execution path and optimizing the first path;
• and
• subsequently identifying a second path as the hot execution path and optimizing the second path in response to the second path becoming more frequently used than the first path.

A method comprising:

• dividing a source code into source code regions, each source code region comprises a method or a program loop;
• compiling a source code region into an object code, said compiling including placing path profiling instrumentation into said object code such that path profiling is performed for each code region;
• executing said object code, said executing comprising counting taken execution paths to determine a hot execution path;
• selecting a first path through the source code regions as the hot execution path and optimizing the first path;
• and
• subsequently identifying a second path as the hot execution path and optimizing the second path in response to the second path becoming more frequently used than the first path.

A method comprising:

• dividing a source code into source code regions;
• compiling a source code region into an object code, said compiling including placing path profiling instrumentation into said object code such that path profiling is performed for each code region;
• executing said object code, said executing comprising counting taken execution paths to determine a hot execution path;
• and
• dynamically optimizing said hot execution path
• wherein said dynamically optimizing includes
• selecting a first path through the source code regions as the hot execution path and optimizing the first path;
• and
• subsequently identifying a second path as the hot execution path and optimizing the second path in response to the second path becoming more frequently used than the first path.