System and method of using pooled thread-local character arrays

An apparatus that executes instructions for performing string operations in a virtual machine environment, the apparatus comprising:

• a processor;
• and
• a memory,
• wherein the processor is configured to control the apparatus to perform processing including:
• creating, by the processor, a character array in a character array area in the memory,
• creating, by the processor, a plurality of thread-local character array areas in the memory, wherein each of the plurality of thread-local character array areas is respectively associated with a corresponding one of a plurality of threads, and wherein each of the plurality of thread-local character array areas has a plurality of character array slots,
• detecting, by the processor, a string operation that qualifies for using a thread-local character array from a thread-local character array area of the plurality of thread-local character array areas that is associated with a thread of the plurality of threads,
• borrowing, by the processor, the thread-local character array of a thread-local character array slot of the thread-local character array area,
• performing, by the processor, the string operation using the thread-local character array having been borrowed, instead of using the character array, and
• returning, by the processor, the thread-local character array to the thread-local character array slot when the string operation has been performed.

A non-transitory computer-readable medium having recorded thereon instructions that control a data processing apparatus to execute processing for performing string operations in a virtual machine environment, comprising:

• creating a character array in a character array area in a memory;
• creating a plurality of thread-local character array areas in the memory, wherein each of the plurality of thread-local character array areas is respectively associated with a corresponding one of a plurality of threads, and wherein each of the plurality of thread-local character array areas has a plurality of character array slots;
• detecting a string operation that qualifies for using a thread-local character array from a thread-local character array area of the plurality of thread-local character array areas that is associated with a thread of the plurality of threads;
• borrowing the thread-local character array of a thread-local character array slot of the thread-local character array area;
• performing the string operation using the thread-local character array having been borrowed, instead of using the character array;
• and
• returning the thread-local character array to the thread-local character array slot when the string operation has been performed.