CN106297890A - A kind of internal memory target refresh determination method for parameter and device - Google Patents

Abstract

The invention provides a kind of internal memory target refresh determination method for parameter and device, the method includes: S1: determine initial refresh parameter；S2: utilize initial refresh parameter internally to deposit into row refreshing；S3: judge that the internal memory after refreshing the most normally works, if normally working, then perform S4, otherwise, currently used refresh parameter is defined as target refresh parameter；S4: described initial refresh parameter is updated according to refresh granularity, and utilize the refresh parameter after renewal internally to deposit into row refreshing, and perform S3.This programme can accurately determine the refresh parameter of target memory.

Description

Method and device for determining memory target refresh parameters

technical field

The invention relates to the technical field of computers, in particular to a method and device for determining memory object refresh parameters.

Background technique

As a key component of the server system, the memory directly affects whether the server can work normally. Among them, the memory has the characteristics of interval refreshing to ensure that the data in the memory will not be lost.

In the prior art, memory refresh parameters may be set according to empirical values, so as to refresh the memory periodically using the refresh time period corresponding to the refresh parameters.

However, if the actual refresh time period of the memory is much longer than the refresh time period corresponding to the experience value, then the refresh parameters set according to the experience value will cause a waste of refresh resources; if the actual refresh time period of the memory is shorter than the refresh time period corresponding to the experience value , then the refresh parameters set according to the empirical value will cause memory data loss. Therefore, the prior art cannot accurately determine memory refresh parameters.

Contents of the invention

The embodiment of the present invention provides a method and device for determining memory target refresh parameters, so as to accurately determine memory refresh parameters.

In a first aspect, an embodiment of the present invention provides a method for determining memory target refresh parameters, including:

S1: Determine the initial refresh parameters;

S2: Refresh the memory by using the initial refresh parameters;

S3: Determine whether the refreshed memory works normally, if it works normally, execute S4; otherwise, determine the currently used refresh parameters as the target refresh parameters;

S4: Update the initial refresh parameters according to the refresh granularity, and use the updated refresh parameters to refresh the memory, and execute S3.

Preferably,

A refresh parameter corresponding to memory usage is determined according to the target refresh parameter, wherein the refresh parameter corresponding to memory usage is smaller than the target refresh parameter.

Preferably,

The memory is refreshed using initial refresh parameters, including:

Get the boot disk;

Copy the setting program and the memory test program of refreshing parameters into the boot disk;

Setting the initial refresh parameters in the startup disk according to the refresh parameter setting program;

Reading the set initial refresh parameters according to the memory test program, and refreshing the memory according to the read initial refresh parameters.

Preferably,

The boot disk includes: a DOS (Disk Operating System, Disk Operating System) boot disk.

Preferably,

The refresh granularity includes: 1ms-32ms;

and / or,

The memory includes: DRAM (Dynamic Random Access Memory, dynamic random access memory).

In a second aspect, an embodiment of the present invention provides a device for determining memory target refresh parameters, including:

a setting unit, configured to set the refresh granularity, and output the refresh granularity to the processing unit;

a first determination unit, configured to determine an initial refresh parameter, and output the initial refresh parameter to the refresh unit;

The refresh unit is configured to refresh the memory using initial refresh parameters;

The judging unit is used to judge whether the refreshed memory works normally, and if it works normally, triggers the processing unit to perform corresponding operations; otherwise, triggers the second determining unit to perform corresponding operations;

The second determining unit is configured to determine the currently used refresh parameter as the target refresh parameter;

The processing unit is configured to update the initial refresh parameters according to the refresh granularity, and use the updated refresh parameters to refresh the memory, and trigger the judging unit to perform corresponding operations.

Preferably,

The device for determining the refresh parameters of the memory target further includes:

The third determining unit is configured to determine a refresh parameter corresponding to memory usage according to the target refresh parameter, wherein the refresh parameter corresponding to memory usage is smaller than the target refresh parameter.

Preferably,

The refresh unit includes:

Get the module, used to get the boot disk;

A copy module, used to copy the setting program and the memory test program of the refresh parameters into the boot disk;

A setting module, configured to set the initial refresh parameters in the startup disk according to the refresh parameter setting program;

The processing module is configured to read the set initial refresh parameters according to the memory test program, and refresh the memory according to the read initial refresh parameters.

Preferably,

The startup disk includes: a DOS startup disk.

Preferably,

The refresh granularity includes: 1ms-32ms;

and / or,

The memory includes: DRAM.

Embodiments of the present invention provide a method and device for determining memory target refresh parameters. By determining the initial refresh parameters and using the initial refresh parameters to refresh the memory, it is judged whether the refreshed memory works normally. If it works normally, it indicates that the current The refresh parameters used can satisfy the normal refresh of the memory, and the currently used refresh parameters are updated through the refresh granularity to use the updated refresh parameters to refresh the memory until it is determined that the currently used refresh parameters make the refreshed memory unable to During normal operation, the currently used refresh parameters are determined as the target refresh parameters. In this solution, the refresh parameters of the memory can be accurately determined through the refresh granularity.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are For some embodiments of the present invention, those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a flow chart of a method for determining memory target refresh parameters provided by an embodiment of the present invention;

FIG. 2 is a flow chart of another method for determining memory target refresh parameters provided by an embodiment of the present invention;

FIG. 3 is a hardware architecture diagram of the device where the device provided by an embodiment of the present invention is located;

FIG. 4 is a structural diagram of a device for determining refresh parameters of a memory target provided by an embodiment of the present invention;

FIG. 5 is a structural diagram of another device for determining refresh parameters of memory objects provided by an embodiment of the present invention;

FIG. 6 is a structural diagram of another device for determining refresh parameters of memory objects provided by an embodiment of the present invention;

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the protection of the present invention. scope.

As shown in Figure 1, the embodiment of the present invention provides a method for determining memory target refresh parameters, which is characterized in that the refresh granularity is preset, and the method may include the following steps:

Step 101: Determine initial refresh parameters;

Step 102: Refresh the memory by using the initial refresh parameters;

Step 103: judging whether the refreshed memory works normally, if it works normally, execute step 104; otherwise, execute step 105;

Step 104: Update the initial refresh parameters according to the refresh granularity, and use the updated refresh parameters to refresh the memory, and execute step 103.

Step 105: Determine the currently used refresh parameter as the target refresh parameter;

Embodiments of the present invention provide a method and device for determining memory target refresh parameters. By determining the initial refresh parameters and using the initial refresh parameters to refresh the memory, it is judged whether the refreshed memory works normally. If it works normally, it indicates that the current The refresh parameters used can satisfy the normal refresh of the memory, and the currently used refresh parameters are updated through the refresh granularity to use the updated refresh parameters to refresh the memory until it is determined that the currently used refresh parameters make the refreshed memory unable to During normal operation, the currently used refresh parameters are determined as the target refresh parameters. In this solution, the refresh parameters of the memory can be accurately determined through the refresh granularity.

In a possible implementation manner, in order to determine the target refresh parameter faster, the refreshing the memory by using the initial refresh parameter includes:

Get the boot disk;

Copy the setting program and the memory test program of refreshing parameters into the boot disk;

Setting the initial refresh parameters in the startup disk according to the refresh parameter setting program;

Reading the set initial refresh parameters according to the memory test program, and refreshing the memory according to the read initial refresh parameters.

For example, make a DOS (Disk Operating System, disk operating system) boot disk, copy the refresh time setting program refresh.exe and the memory test program to the DOS disk, boot into the DOS disk, run refresh.exe to set the initial refresh time to 32ms, Run the memory test program to refresh the memory.

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 2, an embodiment of the present invention provides a method for determining memory target refresh parameters, and the method may include the following steps:

Step 201: Obtain a startup disk.

In this embodiment, a boot disk is selected, where the boot disk may be a USB flash drive, a CD, a mobile hard disk, or the like. The embodiment of the present invention is described by taking a DOS boot disk as an example.

Step 202: Copy the refresh parameter setting program and the memory test program to the DOS boot disk.

Wherein, the refresh parameter setting program may be pre-designed, and the refresh parameter setting program may be named, for example, refresh.exe. The memory test program can also be pre-designed. After obtaining the DOS boot disk, copy refresh.exe and the memory test program to the DOS boot disk.

In one embodiment of the present invention, the refresh parameter setting program and the memory test program can also be designed directly in the DOS boot disk.

Step 203: Determine initial refresh parameters.

In this embodiment, the tested memory is DRAM (Dynamic Random Access Memory, dynamic random access memory). The interval standard of the refresh time is 64ms, that is, under normal circumstances, it is necessary to ensure that the storage capacitor can hold the data for 64ms. When the refresh time is extended, it means that the time interval for each refresh of data becomes longer, and some data bits in the memory with poor data retention may leak from high level to low level after a longer period of time, resulting in data errors . In order to determine the refresh time for the normal operation of the memory, in this embodiment, the initial refresh time is selected as 32ms.

Step 204: boot into the startup disk, and run the program.

In this embodiment, boot into the DOS disk, run the parameter setting program refresh.exe and the memory testing program.

Step 205: Refresh the memory by using the initial refresh parameters.

The memory is tested using the initial refresh time, which is 32ms.

Step 206: Judging whether the refreshed memory works normally, if it works normally, go to step 207; otherwise, go to step 208.

In this embodiment, if the refreshed memory can work normally, update the refresh parameter to 64ms, and continue to refresh the memory; otherwise, determine the currently used refresh parameter of 32ms as the target refresh parameter.

In this embodiment, whether the refreshed memory can work normally can be determined by judging whether data loss occurs. If data loss occurs, it indicates that the memory cannot work normally. If no data loss occurs, it indicates that the memory can work normally.

Step 207: Update the currently used refresh parameters according to the refresh granularity, and use the updated refresh parameters to refresh the memory, and execute step 206.

In an embodiment of the present invention, the refresh granularity may be 1ms-32ms.

In this embodiment, the smaller the refresh granularity is set, the more accurate the determined target refresh parameters are, and the larger the refresh granularity is set, the fewer refresh times will pass when the target refresh parameters are determined. Therefore, in order to balance the target refresh parameters For accuracy and refresh efficiency, you can choose the value corresponding to the best refresh granularity. For example,

The refresh granularity is 32ms.

Since the initial refresh time is 32ms, after updating the initial refresh time using the refresh granularity, the updated refresh parameter is 64ms, that is, step 206 is performed using 64ms. After updating the refresh granularity, continue to refresh the tested memory, and then execute step 206 .

Step 208: Determine the refresh parameter currently used as the target refresh parameter.

When the refreshed memory cannot work normally, the refresh time used at this time is determined as the target refresh time.

Step 209: Determine a refresh parameter corresponding to memory usage according to the target refresh parameter, wherein the refresh parameter corresponding to memory usage is smaller than the target refresh parameter.

For example, when the determined target refresh parameter is 64ms, in order to ensure that the target memory can work normally, the corresponding refresh parameter when the memory is used is smaller than the target refresh parameter, therefore, the refresh parameter when the memory is used can be set to 63ms.

As shown in FIG. 3 and FIG. 4 , an embodiment of the present invention provides a device for determining refresh parameters of a memory target. The device embodiments can be implemented by software, or by hardware or a combination of software and hardware. From the hardware level, as shown in Figure 3, it is a hardware structure diagram of the device where the device for determining the memory target refresh parameter provided by the embodiment of the present invention is located, except for the processor, memory, network interface, and In addition to the non-volatile memory, the device where the device in the embodiment is located may generally include other hardware, such as a forwarding chip responsible for processing packets, and the like. Taking software implementation as an example, as shown in Figure 4, as a device in a logical sense, it is formed by reading the corresponding computer program instructions in the non-volatile memory into the memory for operation by the CPU of the device where it is located. The device for determining memory target refresh parameters provided in this embodiment includes:

A setting unit 401, configured to set the refresh granularity, and output the refresh granularity to the processing unit;

The first determining unit 402 is configured to determine an initial refresh parameter, and output the initial refresh parameter to the refresh unit;

Refresh unit 403, configured to refresh the memory using initial refresh parameters;

A judging unit 404, configured to judge whether the refreshed memory works normally, and if it works normally, trigger the processing unit to perform corresponding operations; otherwise, trigger the second determination unit to perform corresponding operations;

The second determining unit 405 is configured to determine the currently used refresh parameter as the target refresh parameter;

The processing unit 406 is configured to update the initial refresh parameters according to the refresh granularity, use the updated refresh parameters to refresh the memory, and trigger the judging unit to perform corresponding operations.

In an embodiment of the present invention, please refer to FIG. 5, the device for determining the refresh parameters of the memory target may further include:

The third determining unit 501 is configured to determine a refresh parameter corresponding to memory usage according to the target refresh parameter, wherein the refresh parameter corresponding to memory usage is smaller than the target refresh parameter.

In an embodiment of the present invention, please refer to FIG. 6, the refresh unit 403 may include:

An acquisition module 601, configured to acquire a boot disk;

The copy module 602 is used to copy the setting program and the memory test program of the refresh parameters into the boot disk;

A setting module 603, configured to set the initial refresh parameters in the startup disk according to the refresh parameter setting program;

The processing module 604 is configured to read the set initial refresh parameters according to the memory test program, and refresh the memory according to the read initial refresh parameters.

In an embodiment of the present invention, the refresh granularity may be 1ms-32ms.

In this embodiment, the smaller the refresh granularity is set, the more accurate the determined target refresh parameters are, and the larger the refresh granularity is set, the fewer refresh times will pass when the target refresh parameters are determined. Therefore, in order to balance the target refresh parameters For accuracy and refresh efficiency, you can choose the value corresponding to the best refresh granularity. For example,

The refresh granularity is 32ms.

In this embodiment, the tested memory is DRAM.

In this embodiment, a bootable disk is selected, wherein the bootable disk can be a USB flash drive, a CD, or a mobile hard disk, and a DOS bootable disk is selected for implementation of the present invention.

In summary, each embodiment of the present invention has the following effects:

1. The embodiment of the present invention provides a method and device for determining memory target refresh parameters. By determining the initial refresh parameters and using the initial refresh parameters to refresh the memory, it is judged whether the refreshed memory works normally. If it works normally, then Indicates that the currently used refresh parameters can meet the normal refresh of the memory, and the currently used refresh parameters are updated through the refresh granularity to refresh the memory with the updated refresh parameters until the currently used refresh parameters are determined so that the refreshed When the memory fails to work normally, the currently used refresh parameters are determined as the target refresh parameters. In this solution, the refresh parameters of the memory can be accurately determined through the refresh granularity.

2. In the embodiment of the present invention, the memory is tested by refreshing parameters, not only can the refresh parameters of the target memory be determined more quickly, but also faulty memory and some risky memory can be screened out, effectively ensuring the existence of the screened memory The client works stably and normally, which can improve the stability and reliability of the memory.

The information exchange and execution process among the units in the above-mentioned device are based on the same concept as the method embodiment of the present invention, and the specific content can refer to the description in the method embodiment of the present invention, and will not be repeated here.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or sequence. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional same elements in the process, method, article or apparatus comprising said element.

Those of ordinary skill in the art can understand that all or part of the steps to realize the above method embodiments can be completed by program instructions related hardware, and the aforementioned programs can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are only used to illustrate the technical solution of the present invention, and are not used to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims (10)

1. an internal memory target refresh determination method for parameter, it is characterised in that pre-setting refresh granularity, the method includes:

S1: determine initial refresh parameter；

S2: utilize initial refresh parameter internally to deposit into row refreshing；

S3: judging that the internal memory after refreshing the most normally works, if normally working, then performing S4；Otherwise, by currently used refreshing Parameter determination is target refresh parameter；

S4: described initial refresh parameter is updated according to refresh granularity, and utilize the refresh parameter after renewal internally to deposit into Row refreshes, and performs S3.

Method the most according to claim 1, it is characterised in that farther include: according to described target refresh parameter determination The refresh parameter that internal memory is corresponding when using, wherein, the refresh parameter that described internal memory is corresponding when using is joined less than described target refresh Number.

Method the most according to claim 1, it is characterised in that the initial refresh parameter of described utilization internally deposits into row refreshing, Including:

Obtain boot disk；

By in the program that arranges of refresh parameter and MEMTEST procedural copy to described boot disk；

In described boot disk, the program that arranges according to described refresh parameter arranges described initial refresh parameter；

The described initial refresh parameter arranged is read according to MEMTEST program, and according to the described initial refresh parameter pair read Internal memory refreshes.

Method the most according to claim 3, it is characterised in that

Described boot disk includes: disc operating system DOS boot disk.

5. according to described method arbitrary in claim 1-4, it is characterised in that

Described refresh granularity includes: 1ms-32ms；

And/or,

Described internal memory includes: dynamic random access memory DRAM.

6. the determination device of an internal memory target refresh parameter, it is characterised in that including:

Unit is set, is used for arranging refresh granularity, described refresh granularity is exported to processing unit；

First determines unit, is used for determining initial refresh parameter, exports described initial refresh parameter to refresh unit；

Described refresh unit, is used for utilizing initial refresh parameter internally to deposit into row refreshing；

Judging unit, for judging that the internal memory after refreshing the most normally works, if normally working, then triggers processing unit and performs phase Should operate；Otherwise, trigger second and determine that unit performs corresponding operating；

Described second determines unit, for currently used refresh parameter is defined as target refresh parameter；

Described processing unit, for being updated described initial refresh parameter according to refresh granularity, and utilizes the brush after renewal New parameter internally deposits into row refreshing, and triggers described judging unit execution corresponding operating.

The determination device of internal memory target refresh parameter the most according to claim 6, it is characterised in that farther include:

3rd determines unit, refresh parameter corresponding in time using according to described target refresh parameter determination internal memory, wherein, and institute State refresh parameter corresponding when internal memory uses less than described target refresh parameter.

The determination device of internal memory target refresh parameter the most according to claim 6, it is characterised in that described refresh unit, Including:

Acquisition module, is used for obtaining boot disk；

Copy module, for by the program that arranges of refresh parameter and MEMTEST procedural copy to described boot disk；

Module is set, arranges for the program that arranges according to described refresh parameter in described boot disk and described initial refresh ginseng Number；

Processing module, for reading the described initial refresh parameter arranged, and according to described in reading according to MEMTEST program Initial refresh parameter internally deposits into row refreshing.

The determination device of internal memory target refresh parameter the most according to claim 8, it is characterised in that

Described boot disk includes: disc operating system DOS boot disk.

10. according to the determination device of described internal memory target refresh parameter arbitrary in claim 6-9, it is characterised in that

Described refresh granularity includes: 1ms-32ms；

And/or,

Described internal memory includes: dynamic random access memory DRAM.