Techniques for controlling use of locks

An apparatus to control locking of a resource comprising:

• a processor component;
• a compiler for execution by the processor component to compile an application code to generate an application routine comprising code of first and second instances of code, the first and second instances of code comprising a common portion of code of the application code or different portions of code of the application code;
• a locking component for execution by the processor component to:
• determine whether an indication of past results of allowing sharing of a resource requested to be locked for the first and second instances of code exists;
• in response to determining the indication of past results does not exist, replace a lock instruction of the first instance of code with a lock marker;
• in response to determining the indication of past results exists, determine whether a specified time interval has elapsed or not elapsed for the indication of past results since a last occurrence of replacement of the lock instruction with the lock marker in which contention resulted;
• in response to determining the specified time interval has elapsed, replace the lock instruction of the first instance of code with the lock marker;
• and
• in response to determining the specified time interval has not elapsed, selectively replace the lock instruction of the application code with the lock marker in the application routine based on an analysis of the indication of the past results, the lock instruction to request a lock of access to a resource and the lock marker to not request a lock of access to the resource.

A computer-implemented method for controlling locking of a resource comprising:

• compiling, by a computing device, an application code into an application routine comprising code of first and second instances of code, the first and second instances of code comprising a common portion of code of the application code or different portions of code of the application code;
• retrieving, by the computing device, a stored history data indicating at least one result of a replacement of a lock instruction of a first instance of code with a lock marker;
• determining, by the computing device, whether a specified time interval has elapsed or not elapsed for the indication of at least one result since a last occurrence of replacement of the lock instruction with the lock marker in which contention resulted;
• in response to determining the specified time interval has elapsed, replacing, by the computing device, the lock instruction of the first instance of code with the lock marker;
• and
• in response to determining the specified time interval has not elapsed, analyzing, by the computing device, the at least one result and replacing the lock instruction with the lock marker in the first instance of code based on the analysis of the at least one result to cause a processor component to speculatively execute a second instance of code, the first and second instances of code to access a resource and the lock instruction to request a lock of access to the resource to the first instance of code.

At least one non-transitory machine-readable storage medium comprising instructions that when executed by a computing device, cause the computing device to:

• compile an application code into an application routine comprising code of first and second instances of code, the first and second instances of code comprising a common portion of code of the application code or different portions of code of the application code;
• retrieve a history data stored in a storage of the computing device and indicating at least one result of a replacement of a lock instruction of a first instance of code with a lock marker;
• determine whether a specified time interval has elapsed or not elapsed for the indication of at least one result since a last occurrence of replacement of the lock instruction with the lock marker in which contention resulted;
• in response to determining the specified time interval has elapsed, replace the lock instruction of the first instance of code with the lock marker;
• and
• in response to determining the specified time interval has not elapsed, analyze the at least one result and replace the lock instruction with the lock marker in the first instance of code based on analysis of the at least one result to allow a processor component of the computing device to speculatively execute a second instance of code, the first and second instances of code to access a resource and the lock instruction to request a lock of access to the resource to the first instance of code.