CN101599986B - Method and computer system for accelerating file transmission speed - Google Patents

Abstract

The invention provides a method for accelerating file transmission speed and a computer system, wherein the method comprises the steps of providing a plurality of file groups, classifying a plurality of files into the file groups according to the characteristics of the files, adopting a packet processing mode corresponding to the file groups for the files in the file groups, and transmitting the files in the file groups.

Description

Method and computer system for accelerating file transmission speed

technical field

The present invention relates to the file transmission method, more particularly to the file transmission method in the network.

Background technique

When we want to send a large number of files to another end on the network, the general practice is to transfer the files one by one through the network connection. However, this method will consume considerable time. There are several reasons, one of which is caused by too much overhead between files. The establishment and maintenance of network connections often require additional control information, so there is a lot of additional burden during file transfers. These trivial extras can consume a lot of time when transferring large numbers of files. A method is provided in the prior art to reduce such additional burden. This method is to pack the file into a plurality of larger packets before transmission, and transmit them in the form of packets. When the number of files to be transferred is large, the time taken to encapsulate and unpack the files will be far less than the time taken by all trivial additional burdens when transferring one by one, as shown in FIG. 1 . In addition, another reason for the slow file transfer speed comes from the file itself, which is another method in the prior art to compress the file. Generally speaking, compression can make the file smaller, thereby reducing the time for transferring the file, as shown in the figure 2.

However, in fact, encapsulating or compressing files takes some time, so just encapsulating or compressing files may not really achieve the effect of reducing transmission time. In some cases, it will increase the file size. The overall time spent on transmission, and it is obviously not wise to judge whether to encapsulate or compress files one by one.

Contents of the invention

The present invention provides a method for accelerating file transfer speed, which includes providing multiple file groups, classifying multiple files into the file groups according to the characteristics of the files, and classifying the file groups The following files are processed in a packet corresponding to the file group, and the files under the file group are transmitted. The characteristic of the file includes the size of the file or the type of the file, and the file type can be based on the extension of the file. The file group includes a first file group, which is a collection of files whose file size exceeds a specific value. The file group also includes a second file group, which is a collection of files whose file size does not exceed the specified value and whose compression ratio is smaller than a specified compression ratio. The file group also includes a third file group, which is a collection of files whose file size does not exceed the specified value and whose compression ratio exceeds a specified compression ratio. Wherein a first package processing method corresponding to the first file group is an action of not packaging or compressing the files. A second packet processing method corresponding to the second file group is to encapsulate the files in the second file group into multiple packets. A third packet processing method corresponding to the third file group is to compress the files in the third file group into multiple packets.

The invention can save file transmission time.

Description of drawings

FIG. 1 is a comparison diagram of before and after encapsulation in file transmission.

Fig. 2 is a comparison chart before and after compression in file transmission.

Fig. 3 is a flow chart of the method of the present invention.

FIG. 4 is a correspondence table for classifying files and adopting a packet processing method according to an embodiment of the present invention.

FIG. 5 is a schematic diagram of classification of various extensions according to their corresponding compression ratios.

FIG. 6 is a computer system for accelerating file transfer speed according to an embodiment of the present invention.

Figure number:

A～B～C～…F～file;

S301～S304～steps.

Detailed ways

In order to make the object and features of the present invention more obvious and easy to understand, the preferred embodiments are specially cited below, and in conjunction with the accompanying drawings, the detailed description is as follows:

In order to make the purpose, features, and advantages of the present invention more comprehensible, preferred embodiments are specifically cited below, together with FIG. 3 to FIG. 5 , for a detailed description.

Fig. 3 is a flowchart of a method for accelerating file transfer according to the present invention. The present invention is used to transmit multiple files between computers, and belongs to the invention of the Application Layer in the network OSI model (Open System Interconnection Reference Model). In step S301 in FIG. 3 , the method of the present invention provides multiple file groups, and in this embodiment, three file groups are provided as an example, including a first file group, a second file group and a The third file group, however, the present invention is not limited thereto. In step S302, determine the characteristics of the files, and classify them into the file groups according to the characteristics of the files, and the characteristics of the files include the size of the files and the type of the files , the type of the file mentioned therein can be determined according to the extension of the file, see below for details.

For the classification method of step S302 in this embodiment, please refer to the second column in Fig. 4, wherein, the first file group is a set of files whose file size exceeds a certain value, and the certain value is 700MB in this embodiment, which is This step includes classifying all the files to be transferred whose size exceeds 700MB into the first file group. Furthermore, the second file group is a collection of files whose file size does not exceed the specified value and whose compression ratio is smaller than a specified compression ratio. The compression ratio is defined as the ratio of the file size before compression to the file size after compression:

Compression ratio=(file size before compression)/(file size after compression);

In this embodiment, the specific compression ratio is 1.4, and the extension of the file can be used as the basis for the compression ratio. For example, if the extension is jpg, the file size changes little after being compressed by common compression software such as WinRAR (the compression ratio is far less than 1.4), therefore, the jpg file is a file type with a low compression ratio, and the file classification is as shown in FIG. 5 . Step S302 further includes classifying all the files to be transmitted whose size does not exceed 700MB and whose compression ratio is less than 1.4 into the second file group. Finally, the third file group is a collection of files whose file size does not exceed the specified value and whose compression ratio exceeds the specified compression ratio. Similarly, the compression ratio is the same as the above definition, and the extension of the file can be used as the basis for its compression ratio. For example, if the file extension is txt, the file size will change greatly after being compressed by common compression software such as WinRAR (the compression ratio is much higher than 1.4), therefore, the txt file is a file type with a high compression ratio, and the file classification is as shown in FIG. 5 . Step S302 further includes classifying all the files to be transmitted whose size does not exceed 700MB and whose compression ratio exceeds 1.4 into the third file group.

In the step S303 of the present invention, a packet processing method corresponding to the file group is adopted for the file group respectively. In this embodiment, a first packet processing method corresponding to the first file group is not to pack or compress the files. In this embodiment, a second package processing method corresponding to the second file group is to package the files in the second file group into multiple packages, but not to compress the files. In this embodiment, a third packet processing method corresponding to the third file group is to compress and encapsulate the files in the third file group into multiple packets. Finally, in step S304 of the method of the present invention, the files under the file group are transmitted.

It is worth noting that the reason why the first file group adopts the first packet processing method in step S303 is that the files in the first file group are large, and the additional burden (overhead) between files is relatively large. The data itself is much smaller, and encapsulating or compressing it is time-consuming compared to direct transmission. The reason why the second file group adopts the second packet processing method in step S303 is that the file compression ratio in the second file group is too small (that is, the compressed file size is still large), and it is compressed The sum of the time it takes to decompress it and then decompress it is much more than the time it takes to package it and transmit it, so it doesn't need to be compressed. However, the reason why the third file group adopts the third packet processing method in step S303 is that the files in the third file group have a high compression ratio, and it is worth compressing them before transmitting.

The experiment was carried out according to the method of the prior art, and the results are shown in the following table (1). The total size of the files transferred in each experiment is 11.8GB (the number of files is 9922), and the multiple files included therein have various file types. In this experiment, all the files were transmitted one by one in Experiment 1; all the files were encapsulated and transmitted in Experiment 2, and then decapsulated after transmission; and all files were encapsulated and compressed in Experiment 3 and transmitted, and then transmitted Then unpack and decompress. It can be found from the experiment that in Experiment 1, no encapsulation and compression time are required, but the total time spent is 1 hour, 38 minutes and 24 seconds, which is the longest among the three. Compared with Experiment 2, Experiment 3 increases the action of compressing files, so it has longer packaging and compression time, and also has longer decapsulation and decompression time.

Furthermore, according to the embodiment of the present invention, after the files are classified into each file group, the files are transmitted in a method corresponding to the file group, as shown in the following table (2). This experiment is the same as the above experiment, and the content of the transmitted files is exactly the same (the total file size is 11.8GB, and the number is 9922). From this point of view, compared with the experiment using the prior art, the total time spent by the present invention is only 0 hour, 34 minutes and 18 seconds, and it can be found that the present invention can indeed save file transfer time.

Encapsulation and compression time transmission time Decapsulation and decompression time total time spent Experiment 1 0:0:0 1:38:24 0:0:0 1:38:24 Experiment 2 0:18:59 0:06:53 0:14:54 0:40:46 Experiment 3 0:20:12 0:06:36 0:16:40 0:43:22

Table I)

Total file size (number of files) Encapsulation and compression time transmission time Decapsulation and decompression time total time spent The first file group 4.28GB(6) 0:0:0 0:03:14 0:0:0 0:03:14 Second file group 6.75GB(4940) 0:13:23 0:04:20 0:08:50 0:26:33 The third file group 837MB(4976) 0:03:01 0:00:16 0:01:14 0:04:31 in total 11.8GB(9922) 0:34:18

Table II)

FIG. 6 is a computer system for accelerating file transfer speed according to another embodiment of the present invention. The computer system 600 has a central control unit 602 , a storage unit 604 , and a network unit 606 . The central control unit 602 is used as the hardware core of all operations of the computer system in this embodiment. The storage unit 604 is used to store a plurality of files, and the files include the files to be transmitted to the network in this embodiment. The network unit 606 will provide the computer system with a path to connect to the network. In addition to hardware, the computer system 600 also includes an operating system 608 as a software platform on which the present invention is implemented on a physical network. The operating system 608 further includes a file acceleration unit 610 , wherein the file acceleration unit 610 implements a method for accelerating file transfer speed, which at least includes steps S302 to S304 as in the foregoing embodiments. In step S302, the file acceleration unit 610 classifies the multiple files to be transmitted to the network by the computer system 600 into multiple file groups according to the characteristics of the files. In step S303, the file acceleration unit 610 adopts a packet processing method corresponding to the file group for the files under the file group, and the packet processing method is the same as the above-mentioned embodiment, and will not be repeated here. Finally, in step S304 of the present invention, the file acceleration unit 610 transmits the files under the file group to a network through the network unit 606, and the network can be a wired network or a wireless network. Those familiar with the art can easily understand that the computer system can be a portable computer system such as a notebook computer (Notebook), a personal digital assistant (PDA), a smart phone (SmartPhone) and a fixed computer system such as a desktop computer (Desktop). Therefore, the present invention can be widely applied to the above-mentioned computer systems.

Although the present invention has been disclosed above with preferred embodiments, it is not intended to limit the present invention. Anyone skilled in this art can make some changes and modifications without departing from the spirit and scope of the present invention. Therefore, this The scope of protection of the invention should be defined by the scope of the claims.

Claims (7)

1. A method for accelerating the speed of document transfer, the method comprising:

providing a plurality of file groups;

classifying a plurality of files into the file group according to the characteristics of the files, wherein the characteristics of the files comprise the sizes of the files;

adopting a packet processing mode corresponding to the file group for the files in the file group; and

transmitting the files in the file group;

the file group comprises a first file group which is a set of files with the file size exceeding a specific value; the package processing mode comprises a first package processing mode corresponding to the first file group, and the first package processing mode is an action of stopping packaging or compressing the files of the first file group;

the file group comprises a second file group which is a set of files of which the file size does not exceed a specific value and the compression ratio is less than a specific compression ratio; the package processing mode comprises a second package processing mode corresponding to the second file group, and the second package processing mode is to package the files in the second file group into a plurality of packages;

the file group comprises a third file group which is a set of files of which the file sizes do not exceed a specific value and the compression ratios exceed a specific compression ratio; the package processing mode comprises a third package processing mode corresponding to the third file group, and the third package processing mode is to compress the files in the third file group into a plurality of packages;

the compression ratio is defined as the ratio of the file size before compression to the file size after compression.

2. A method for accelerating file transfer speed as in claim 1, wherein the characteristics of the file further include the type of the file.

3. A method for accelerating file transfer speed as set forth in claim 2, wherein the file type is determined by the extension of the file.

4. An apparatus for accelerating a speed of file transfer for use in a computer system, the apparatus comprising:

a file accelerating unit, classifying a plurality of files to be transmitted to the network by the computer system into a plurality of file groups according to the characteristics of the files, adopting a packet processing mode corresponding to the file groups for the files under the file groups, and transmitting the files under the file groups to the network; wherein,

said characteristics of said file including the size of said file;

the file group comprises a first file group which is a set of files with the file size exceeding a specific value; the package processing mode comprises a first package processing mode corresponding to the first file group, and the first package processing mode is an action of stopping packaging or compressing the files of the first file group;

the file group comprises a second file group which is a set of files of which the file size does not exceed a specific value and the compression ratio is less than a specific compression ratio; the package processing mode comprises a second package processing mode corresponding to the second file group, and the second package processing mode is to package the files in the second file group into a plurality of packages;

the file group comprises a third file group which is a set of files of which the file sizes do not exceed a specific value and the compression ratios exceed a specific compression ratio; the package processing mode comprises a third package processing mode corresponding to the third file group, and the third package processing mode is to compress the files in the third file group into a plurality of packages;

the compression ratio is defined as the ratio of the file size before compression to the file size after compression.

5. The apparatus for accelerating the speed of fransfer of files of claim 4, wherein the characteristics of the file further include the type of the file.

6. The apparatus for accelerating the speed of file transfer as in claim 5, wherein the file type is based on the extension of the file.

7. The apparatus for accelerating the speed of file transfer as in claim 4, wherein the network is a wired network or a wireless network.

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