US 10,254,965 B2 · Method and apparatus for scheduling block device input/output requests

Abstract

The present invention provides a method and apparatus for scheduling block device input/output requests, which relates to the field of computer memories. The method comprises: generating a block device input/output request firstly, wherein the block device input/output request comprises a write operation request; then judging whether the generated block device input/output request can be combined with block device input/output requests in a request queue; and if the generated block device input/output request cannot be combined with block device input/output requests in a request queue, sending the generated block device input/output request to a foremost position of the request queue when a destination device of the generated block device input/output request is a solid state disk or an SD card. By means of the method and apparatus for scheduling the block device input/output requests, the efficiency of write operation is improved.

Claims10

Dependent claims

A method for scheduling input/output requests for a block device coupled to a computer processor having an operating system, wherein the method comprises:

A. generating, by the computer processor, a block device input/output request, wherein the block device input/output request comprises a write operation request;
B. determining, by the computer processor, whether the generated block device input/output request can be combined with block device input/output requests in a request queue;
and
C1. responsive to a determination that the generated block device input/output request cannot be combined with block device input/output requests in the request queue, sending, by the computer processor, the generated block device input/output request to a foremost position of the request queue when a destination device of the generated block device input/output request is a solid state disk or an SD card.

1 more element

An apparatus for scheduling block device input/output requests, wherein the apparatus comprises:

a block device;
one or more computer processors in communication with the block device;
and
a memory, coupled to the one or more computer processors, storing program instructions which, when executed by the one or more computer processors, cause the one or more computer processors to:
generate, by a generating module, a block device input/output request, wherein the block device input/output request comprises a write operation request;
determine, by a judging module, whether the generated block device input/output request can be combined with block device input/output requests in a request queue;
and
responsive to a determination that the generated block device input/output request cannot be combined with block device input/output requests in a request queue, sending, by a sending module, the generated block device input/output request to a foremost position of the request queue when a destination device of the generated block device input/output request is a solid state disk or an SD card.

5 more elements

Dependencies are inferred from the claim text.

Method and apparatus for scheduling block device input/output requests

Life of this patent

Method and apparatus for scheduling block device input/output requests

Life of this patent

Abstract

Claims10