Just in time compilation of java software methods
View Patent ↗A method to just-in-time (JIT) compile Java software methods, the method having the steps of: initializing a first counter for a first software method to a first value, the first value being adjusted each time the first software method is invoked; initializing a second counter for a second software method to a second value, the second value being different from the first value, and the second value being adjusted each time the second software method is invoked; responsive to a determination that the first value exceeds a particular value, JIT compiling the first software method; responsive to a determination that the second value exceeds the particular value, JIT compiling the second software method.
1. A method to just-in-time (JIT) compile Java software methods, the method comprising the steps of:
initializing a first counter for a first software method to a first value, said first value being adjusted each time said first software method is invoked, wherein initializing the first counter includes adding a threshold value to a threshold offset value to calculate said first value only if a total size of all software methods with counters assigned the first value is not greater than the size of an average of the size of all software method;
initializing a second counter for a second software method to a second value, and said second value being adjusted each time said second software method is invoked;
responsive to a determination that the first value exceeds a particular value, JIT compiling said first software method; and
responsive to a determination that the second value exceeds the particular value, JIT compiling said second software method.
2. A method to just-in-time (JIT) compile Java software methods, the method comprising the steps of:
initializing a first counter for a first software method to a first value, said first value being adjusted each time said first software method is invoked;
initializing a second counter for a second software method to a second value, and said second value being adjusted each time said second software method is invoked;
responsive to a determination that the first value exceeds a particular value, JIT compiling said first software method; and
responsive to a determination that the second value exceeds the particular value, JIT compiling said second software method, wherein the steps of initializing the first and second counters include adding a threshold value to a threshold offset value to calculate the first value, incrementing the threshold offset value, and adding the threshold value to the incremented offset value to calculate the second value.
3. The method as claimed in claim 1 , wherein the second value is different from the first value.
4. An apparatus for just-in-time (JIT) compiling Java software methods, the apparatus comprising:
means for initializing a first counter for a first software method to a first value, said first value being adjusted each time said first software method is invoked, wherein the means for initializing the first counter includes a means for adding a threshold value to a threshold offset value to calculate said first value only if a total size of all software methods with counters assigned the first value is not greater than the size of an average of the size of all software methods;
means for initializing a second counter for a second software method to a second value, the second value being different from the first value, and said second value being adjusted each time said second software method is invoked;
means for, responsive to a determination that the first value exceeds a particular value, JIT compiling said first software method; and
means for, responsive to a determination that the second value exceeds the particular value, JIT compiling said second software method.
5. The apparatus as claimed in claim 4 , wherein the means for initializing the first and second counters includes a means for adding a threshold value to a threshold offset value to calculate the first value, incrementing the threshold offset value, and adding the threshold value to the incremented offset value to calculate the second value.