Optimizing just-in-time compilation in a network of nodes

1. A system architecture for maximizing performance of a network of interconnected computing nodes, comprising:

a non-transitory computer-readable storage medium operatively coupled to and communicating with a processor device, the processor device being configured for:

constructing a bytecode configured to maximize performance of wireless sensors in the network of interconnected computing nodes, the bytecode comprising:

at least one region which is a logical sequence of one or more bytecode blocks; and

a region hint embedded in the bytecode, the region hint comprising a bytecode structure configured for instructing a just-in-time (JIT) runtime environment for JIT compilation of a region by JIT compilers implemented at the nodes of the network;

generating and storing, using one or more of the interconnected computing nodes, one or more JIT profiles generated based on the region hint; and

minimizing data transport processing requirements by migrating only the JIT profiles between one or more of the nodes.

2. The system architecture of claim 1 , wherein the region hint logically precedes respective regions with respect to processing by the JIT environment, wherein the JIT environment processes the bytecode in a single pass.

3. The system architecture of claim 1 , wherein a forward jump from a region terminates within said region.

4. The system architecture of claim 1 , wherein the hints are embedded as non-functional instructions for the JIT compiler, such that a target node which lacks JIT compilation can ignore the hints.

5. The system architecture of claim 1 , wherein the bytecode is processed in a single pass, and is further annotated with:

backwards jump hints, designed to instruct a dispatch of backwards jumps through the JIT environment; and

jump-target hints which designate an entry point within a given region.

6. The system architecture of claim 5 , wherein the bytecode is annotated with:

one or more region hints;

one or more backwards jump hints; and

one or more jump-target hints.

7. A method for maximizing performance of a network of interconnected computing nodes which share a same just-in-time (JIT) runtime environment and which independently implement JIT compilers for compiling bytecode, the method comprising:

constructing a bytecode configured to maximize performance of wireless sensors in the network of interconnected computing nodes, the bytecode comprising:

at least one region which is a logical sequence of one or more bytecode blocks; and

a region hint embedded in the bytecode, the region hint comprising a bytecode structure configured for instructing the JIT runtime environment for JIT compilation of the regions by JIT compilers implemented at the nodes of the network;

generating and storing, using one or more of the interconnected computing nodes, one or more JIT profiles generated based on the region hint; and

minimizing data transport processing requirements by migrating only the JIT profiles between one or more of the nodes.

8. The method of claim 7 , further comprising:

annotating bytecode with one or more region hints to obtain the bytecode construction.

9. The method of claim 8 , further comprising:

parsing the annotated bytecode in order to identify hints and instruct the compilation of bytecode according to the identified hints, wherein the JIT runtime environment processes the bytecode in a single pass.

10. The method of claim 9 , further comprising:

collecting statistics at a first node of the network;

migrating data pertaining to the collected statistics from the first node to a second node of the network;

compiling bytecode at the second node according to the migrated data; and

wherein the hints are further adapted for instructing the JIT runtime environment to collect statistics about the hints.

11. The method of claim 8 , wherein the first and second nodes share a local network.

12. The method of claim 9 , wherein the first node is an instrumentation node specifically adapted to implement the collecting of the statistics.

13. The method of claim 10 wherein the second node is a node at which collecting statistics is not implemented.

14. The method of claim 10 , further comprising compiling at the second node if an execution profile in the data migrated is found to be compatible with the second node.

15. A system for maximizing performance of a network of interconnected computing nodes which share a common Just In Time (JIT) runtime environment and implement JIT compilers for independently compiling bytecode, the network comprising a computer program product comprising a non-transitory computer-readable storage medium having program instructions embodied therewith configured to implement a method comprising the steps of:

constructing a bytecode, stored in a non-transitory computer readable storage medium, configured to maximize performance of wireless sensors in the network of interconnected computing nodes, the bytecode comprising:

at least one region which is a logical sequence of one or more bytecode blocks; and

a region hint embedded in the bytecode, the region hint comprising a bytecode structure configured for instructing the JIT runtime environment for JIT compilation of the regions by JIT compilers implemented at the nodes of the network;

generating and storing, using one or more of the interconnected computing nodes, one or more JIT profiles generated based on the region hint; and

minimizing data transport processing requirements by migrating only the JIT profiles between one or more of the nodes.

16. The system of claim 15 , wherein the network is a heterogeneous network.