Method and system for improving memory access performance

Patent metadata

Field	Value
Publication number	US-9367465-B2
Application number	US-10179208-A
Country	US
Kind code	B2
Filing date	Apr 11, 2008
Priority date	Apr 12, 2007
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

Abstract

The present invention relates to a computing system which includes a processor and a memory. It also includes a memory access optimizer which is arranged to affect memory access of a program during runtime execution of the software. The program includes a plurality of application elements, each comprising a text field containing a text section, and a memory access field. The memory access optimizer is arranged to implement memory access data in the memory access field in order to affect memory access of the application element. The text section is unchanged by the memory access data implementation.

First claim

What is claimed is:

1. A computing system comprising:
a processor;
a memory;
a memory access optimizer configured to affect memory access of a program during runtime execution of the program;
the program including a plurality of application elements comprising a text field containing a text section, and a memory access field, the memory access optimizer configured to implement memory access data in the memory access field in order to affect memory access of the application element, whereby the memory access optimizer is configured to prevent change to the text section by the memory access data implementation.

2. A computing system in accordance with claim 1 , wherein, the memory access data is arranged to control a prefetch instruction for affecting a prefetch of data from memory.

3. A computing system in accordance with claim 1 , wherein the memory access data is arranged to control selection of a program routine for execution.

4. A computing system in accordance with claim 1 , further comprising:
a compiler arranged to implement memory access options within a program including a plurality of application elements, the memory access options being arranged to affect memory access patterns of the program during runtime, and the compiler being arranged to provide a memory access field in the application elements, wherein the value of a datum in the memory access field is arranged to implement the memory access options.

5. A computing system in accordance with claim 4 , wherein the memory access options include an instruction for causing prefetch of data from memory.

6. A computing system in accordance with claim 4 , wherein the memory access options include an instruction for selection of a program routine.

7. A method of compiling a computer program, wherein a computer has instructions stored in non-transitory memory executable by a processor and the computer program includes a plurality of application elements comprising a text field containing a text section, the method comprising:
writing memory access options into the application elements for affecting memory access patterns of the computer program during runtime
providing a memory access field for the application element(s), wherein the value of a datum in the memory access field is arranged to implement memory access options; and
implementing memory access in the memory access field in order to affect memory access of the application elements, wherein implementing the memory access in the memory access field is performed in a manner to prevent change to the text section while implementing memory access in the memory access field.

8. A method in accordance with claim 7 , wherein the memory access options include instructions for causing a prefetch of data from memory.

9. A method in accordance with claim 7 , wherein the memory access options include an instruction for selection of a program routine.

10. A computing device, including instruction stored in non-transitory memory and executed by a processor to control compiling of a program the program having a plurality of application elements including a text field and a text section, where the instructions are executed to:
write memory access options into the application elements for affecting memory access patterns of the computer program during runtime;
provide a memory access field for the application element(s), wherein a value of a datum in the memory access field is configured to implement memory access options; and
implement memory access in the memory access field in order to affect memory access of the application elements, wherein implementing the memory access in the memory access field is performed in a manner to prevent change to the text section while implementing memory access in the memory access field.

Assignees

• Saraswati Sujoy
• Hewlett Packard Entpr Dev Lp

Inventors

• Saraswati Sujoy

Classifications

• G06F2212/6028

  Prefetching based on hints or prefetch instructions · CPC title

• G06F8/443

  Optimisation · CPC title

• G06F12/0862 Primary

  with prefetch · CPC title