Data reading and writing-in methods and systems of shared memory

A shared memory and data reading technology, which is applied in the field of computer communication, can solve problems such as inability to fully utilize resources, process blocking, and affecting server throughput.

Active Publication Date: 2014-03-19
BEIJING QIANXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, adding a global lock will cause only one process to work forever to perform write operations or perform read operations, which means that

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  • Data reading and writing-in methods and systems of shared memory
  • Data reading and writing-in methods and systems of shared memory
  • Data reading and writing-in methods and systems of shared memory

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Embodiment Construction

[0155] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0156] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0157] In order to enable those skilled in the art to better understand the present invention, the related technologies involved in the present invention are briefly described below.

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Abstract

The invention provides data reading and writing-in methods and systems of shared memory. The data reading method comprises the steps as follows: positioning the location of the shared memory where to-be-read data is located; obtaining the length of the to-be-read data; obtaining a read offset pointer pRead and a write offset pointer pWrite in the shared memory; judging whether the to-be-read data is readable according to the read offset pointer pRead and the write offset pointer pWrite as well as the length of the to-be-read data; and if yes, reading the to-be-read data from the location of the shared memory where the to-be-read data is located. With the adoption of the invention, the problem of blockage caused by locking is solved, so that the resource consumption is reduced, the system resource is sufficiently utilized, the processing speed is increased, and the server throughput is improved.

Description

technical field [0001] The present invention relates to the technical field of computer communication, in particular to a shared memory data reading method, a shared memory data writing method, a shared memory data reading system, and a shared memory data write to the system. Background technique [0002] Throughput refers to the sum of the amount of data transmitted on the network during a performance test. For interactive applications, the throughput index reflects the pressure on the server. In the test of capacity planning, the throughput index shows the load capacity at the system level. With the continuous growth of user traffic and the continuous accumulation of enterprise data, the throughput requirements for servers are also getting higher and higher. [0003] The speed of communication between server processes will affect the throughput. Shared memory is usually used. Shared memory is the fastest and most useful method for inter-process communication. The use of ...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/08G06F12/0815G06F12/084
Inventor 蔡东赟王东玉
Owner BEIJING QIANXIN TECH
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