US 9,870,318 B2 · Technique to improve performance of memory copies and stores

Abstract

A system and method for efficiently relocating and initializing a block of memory of the computer system. For data initialization and data relocation, multiple registers in a processor are used for intermediate storage of data to be written into the memory. Regardless of whether the amount of data to initialize or relocate is aligned with the register data size, the processor writes the data into the destination buffer with write operations that only utilize the register data size. The write operations utilize the register data size when each of the start and the end of the destination buffer is aligned with the register width, when the start of the destination buffer is unaligned with the register width, when a source buffer and the destination buffer are unaligned with one another for a copy operation, and when the source buffer and the destination buffer overlap.

Claims19

Dependent claims

A computing system comprising:

a register configured to store R bytes of data;
a memory comprising one or more buffers;
and
a processor coupled to the memory, wherein the processor is configured to:
receive an operation configured to write L bytes of data currently stored in the register into a destination buffer of the one or more buffers within the memory;
and
write more than L bytes of data to the destination buffer, said L bytes of data representing the data currently stored in the register, responsive to determining:
L is greater than R;
and
L is not an integer multiple of R.

7 more elements

Dependencies are inferred from the claim text.

Technique to improve performance of memory copies and stores

Life of this patent

Technique to improve performance of memory copies and stores

Life of this patent

Abstract

Claims19