CN112684981A - Solid state disk reading operation recording method, system, device and readable storage medium - Google Patents
Solid state disk reading operation recording method, system, device and readable storage medium Download PDFInfo
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Abstract
The application discloses a solid state disk reading operation recording method, a system, a device and a readable storage medium, wherein the method comprises the following steps: reading the current PBA; judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not; if yes, adding one to the count value in the current buffer structure; if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA. According to the method and the device, the buffer structure is utilized, the count value of the read operation of the continuous PBAs in the same block is counted into the buffer structure, the DDR is added to the count value in the buffer structure when the block is replaced, the DDR is not required to be accessed by the read operation of each PBA, the DDR access time is shortened, the data reading speed is improved, and the reading performance of the solid state disk is improved.
Description
Technical Field
The present invention relates to the field of solid state disks, and in particular, to a method, a system, an apparatus, and a readable storage medium for recording a read operation of a solid state disk.
Background
In the actual use process of the solid state disk, after data of a PBA (physical Block Address) is read each time, an operation of adding a read count variable read cnt in a Block attribute (Block info) corresponding to the PBA is performed, the variable is used for recording the number of times of executing a read operation on the Block, and when the Block is executed with an erasing operation, the variable is cleared.
Since the block attribute is stored in a DDR (Double Data Rate), each time an add operation to the read cnt is performed, the DDR needs to be accessed, frequently accessing the DDR lengthens the read Data time, and the read performance of the solid state disk is affected.
Therefore, how to provide a solution to the above technical problems is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a method, a system, a device and a readable storage medium for recording a read operation of a solid state disk, so as to optimize the read performance of the solid state disk. The specific scheme is as follows:
a solid state disk reading operation recording method comprises the following steps:
reading the current PBA;
judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not;
if yes, adding one to the count value in the current buffer structure;
if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA.
Preferably, the process of resetting the current buffer structure according to the PBA includes:
determining block in the current buffer structure according to the block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
Preferably, before the determining whether the block in the current buffer structure is the same as the block corresponding to the PBA, the method further includes:
judging whether the current buffer structure is empty or not;
if yes, resetting the current buffer structure according to the PBA;
and if not, executing the action of judging whether the block in the current buffer structure is the same as the block corresponding to the PBA.
Preferably, the buffer structure includes: block, read count address, and count value;
correspondingly, the determining the read cnt corresponding to the current buffer structure in the DDR includes:
and determining the read cnt corresponding to the current buffer structure in the DDR according to the read counting address in the current buffer structure.
Preferably, the method for recording read operations of a solid state disk further includes:
and when a power-off instruction is received, determining a read cnt corresponding to the current buffer structure in the DDR, and adding a count value in the current buffer structure as a read increment to the read cnt.
Preferably, the method for recording read operations of a solid state disk further includes:
and when the power-off instruction is received, stopping the action of judging whether the block in the current buffer structure is the same as the block corresponding to the PBA, and directly executing an adding operation on the read cnt corresponding to the PBA.
Correspondingly, this application still discloses a solid state disk read operation record system, includes:
a reading module for reading the current PBA;
the judging module is used for judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not; if yes, triggering a first action module; if not, triggering a second action module;
the first action module is used for adding one to a count value in the current buffer structure;
and the second action module is used for determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA.
Preferably, the second action module is specifically configured to:
determining block in the current buffer structure according to the block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
Correspondingly, this application still discloses a solid state hard drives reading operation recorder, includes:
a memory for storing a computer program;
a processor, configured to implement the steps of the method for recording a read operation of a solid state disk according to any one of the above descriptions when the computer program is executed.
Correspondingly, the application also discloses a readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements the steps of the solid state disk read operation recording method according to any one of the above.
The application discloses a solid state disk reading operation recording method, which comprises the following steps: reading the current PBA; judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not; if yes, adding one to the count value in the current buffer structure; if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA. According to the method and the device, the buffer structure is utilized, the count value of the read operation of the continuous PBA in the same block is counted into the buffer structure, the count value in the buffer structure is added into the DDR when the block is replaced, the DDR is accessed without the read operation aiming at each PBA, the DDR access time is reduced, the data reading speed is improved, and the reading performance of the solid state disk is improved.
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In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart illustrating steps of a method for recording a read operation of a solid state disk according to an embodiment of the present invention;
fig. 2 is a structural distribution diagram of a solid state disk read operation recording system according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Since the block attribute is stored in the DDR, each time an add operation to the read cnt is performed, the DDR needs to be accessed, frequent access to the DDR lengthens the read data time, and the read performance of the solid state disk is affected. According to the method and the device, DDR does not need to be accessed through read operation of each PBA, DDR access time is reduced, data reading speed is improved, and the reading performance of the solid state disk is improved.
The embodiment of the invention discloses a method for recording read operation of a solid state disk, which is shown in figure 1 and comprises the following steps:
s1: reading the current PBA;
s2: judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not;
s3: if yes, adding one to the count value in the current buffer structure;
s4: if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA.
It should be understood that in this embodiment, the read count of each PBA is not directly written into the read cnt of the DDR, but is first counted in the buffer structure, and the count value in the current buffer structure is not written into the DDR until the PBA read of the block ends and jumps to the next block. Since the embodiment is different from the existing access to the DDR, the whole method for recording the read operation of the solid state disk is implemented by a software program, the buffer structure is located in the buffer, and the data read-write rate of the buffer structure is much higher than the access to the DDR.
It can be understood that, because the essence of this embodiment is to merge the read operation times of PBAs in the same block, and write the times into the read cnt once, the effect is better in the scheme of sequentially reading PBAs, the probability of continuously reading PBAs in the same block is extremely high, and the time for accessing DDR each time can be saved by the method.
Specifically, the process of resetting the current buffer structure according to the PBA in step S4 includes:
determining block in the current buffer structure according to block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
It can be understood that the reason for resetting the current buffer structure is that the block of the current PBA is inconsistent with the block in the buffer structure, and the block in the buffer structure has been read and ended, and enters the next block, so the buffer structure needs to be reset according to a new PBA, where the block is the block corresponding to the PBA, the count value is counted from 0, but the PBA has already been read, and thus the count value is added with 1, that is, the count value is set to 1.
Further, before determining whether the block in the current buffer structure is the same as the block corresponding to the PBA, the method further includes:
judging whether the current buffer structure is empty or not;
if yes, resetting the current buffer structure according to the PBA;
if not, executing the action of judging whether the block in the current buffer structure is the same as the block corresponding to the PBA.
It will be appreciated that at the beginning of system startup, when there are no over-read operations, the buffer structure is empty, with no data therein, and the buffer structure is reset as described above, and counting of the buffer structure begins.
Further, the buffer structure may include: block, read count address, and count value; the buffer structure at least comprises the three member variables, wherein the block is determined according to the block corresponding to the PBA, specifically the numbering position of the block, the reading counting address is the storage address of the block in the corresponding buffer structure when the block stores the read cnt in the DDR, and the count value is the reading operation count accumulated by the block in the current buffer structure. In addition to these three member variables, other member variables may be added to the buffer structure to provide relevant performance support for read operations of PBAs in the same block.
Correspondingly, the process of determining the read cnt corresponding to the current buffer structure in the DDR includes:
and determining the read cnt corresponding to the current buffer structure in the DDR according to the read counting address in the current buffer structure.
It can be understood that, as mentioned above, the buffer structure in this embodiment is located in the buffer area, once the power-down notification is received, the data operation of the buffer structure is no longer reliable, the count value of the buffer structure needs to be quickly written into the read cnt, and the use of the buffer structure is stopped, and the subsequent PBA read operation will be directly written into the read cnt in the form of accessing the DDR, so as to avoid the error caused by the count loss of the read operation due to the sudden power-down.
Therefore, the solid state disk reading operation recording method further comprises the following steps:
when a power-down instruction is received, a read cnt corresponding to the current buffer structure in the DDR is determined, and the count value in the current buffer structure is used as a read increment to be added to the read cnt.
Further, the solid state disk reading operation recording method further includes:
and when a power-off instruction is received, stopping judging whether the block in the current buffer structure is the same as the block corresponding to the PBA, and directly executing an adding operation on the read cnt corresponding to the PBA.
The application discloses a solid state disk reading operation recording method, which comprises the following steps: reading the current PBA; judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not; if yes, adding one to the count value in the current buffer structure; if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA. According to the method and the device, the buffer structure is utilized, the count value of the read operation of the continuous PBA in the same block is counted into the buffer structure, the count value in the buffer structure is added into the DDR when the block is replaced, the DDR is accessed without the read operation aiming at each PBA, the DDR access time is reduced, the data reading speed is improved, and the reading performance of the solid state disk is improved.
Correspondingly, an embodiment of the present application further discloses a solid state disk read operation recording system, as shown in fig. 2, including:
a reading module 1, configured to read a current PBA;
the judging module 2 is used for judging whether the block in the current buffer structure is the same as the block corresponding to the PBA; if yes, triggering a first action module 3; if not, triggering a second action module 4;
a first action module 3, configured to add one to the count value in the current buffer structure;
and the second action module 4 is configured to determine a read cnt corresponding to the current buffer structure in the DDR, add the count value in the current buffer structure to the read cnt as a read increment, and then reset the current buffer structure according to the PBA.
Further, the second action module 4 is specifically configured to:
determining block in the current buffer structure according to block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
According to the embodiment of the application, the buffer structure is utilized, the count value of the read operation of the continuous PBAs in the same block is counted into the count value in the buffer structure, the count value in the buffer structure is added into the DDR when the block is replaced, the DDR is accessed without the read operation aiming at each PBA, the DDR access time is reduced, the data reading speed is improved, and the reading performance of the solid state disk is improved.
Correspondingly, the embodiment of the present application further discloses a solid state disk read operation recording device, including:
a memory for storing a computer program;
a processor, configured to implement the steps of the method for recording a read operation of a solid state disk according to any one of the above embodiments when executing the computer program.
Correspondingly, the embodiment of the present application further discloses a readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the solid state disk read operation recording method according to any one of the above embodiments.
The details of the method for recording read operations of a solid state disk in this embodiment may refer to the related descriptions in the above embodiments, and are not described herein again.
The solid state disk read operation recording device and the readable storage medium in this embodiment have the same beneficial effects as the solid state disk read operation recording method in the foregoing embodiment, and are not described herein again.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method, the system, the apparatus and the readable storage medium for reading, operating and recording the solid state disk provided by the present invention are described in detail above, and a specific example is applied in the present document to explain the principle and the implementation of the present invention, and the description of the above embodiment is only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A solid state disk reading operation recording method is characterized by comprising the following steps:
reading the current PBA;
judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not;
if yes, adding one to the count value in the current buffer structure;
if not, determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA.
2. The method for recording read operations on a solid state disk according to claim 1, wherein the process of resetting the current buffer structure according to the PBA comprises:
determining block in the current buffer structure according to the block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
3. The method according to claim 2, wherein before the determining whether the block in the current buffer structure is the same as the block corresponding to the PBA, the method further comprises:
judging whether the current buffer structure is empty or not;
if yes, resetting the current buffer structure according to the PBA;
and if not, executing the action of judging whether the block in the current buffer structure is the same as the block corresponding to the PBA.
4. The method for recording the read operation of the solid state disk according to claim 1, wherein the buffer structure comprises: block, read count address, and count value;
correspondingly, the determining the read cnt corresponding to the current buffer structure in the DDR includes:
and determining the read cnt corresponding to the current buffer structure in the DDR according to the read counting address in the current buffer structure.
5. The method for recording the read operation of the solid state disk according to any one of claims 1 to 4, further comprising:
and when a power-off instruction is received, determining a read cnt corresponding to the current buffer structure in the DDR, and adding a count value in the current buffer structure as a read increment to the read cnt.
6. The method for recording the read operation of the solid state disk according to claim 5, further comprising:
and when the power-off instruction is received, stopping the action of judging whether the block in the current buffer structure is the same as the block corresponding to the PBA, and directly executing an adding operation on the read cnt corresponding to the PBA.
7. A solid state disk read operation recording system, comprising:
a reading module for reading the current PBA;
the judging module is used for judging whether the block in the current buffer structure is the same as the block corresponding to the PBA or not; if yes, triggering a first action module; if not, triggering a second action module;
the first action module is used for adding one to a count value in the current buffer structure;
and the second action module is used for determining a read cnt corresponding to the current buffer structure in the DDR, adding a count value in the current buffer structure as a read increment to the read cnt, and then resetting the current buffer structure according to the PBA.
8. The method according to claim 7, wherein the second action module is specifically configured to:
determining block in the current buffer structure according to the block corresponding to the PBA;
and setting the count value in the current buffer structure to be 1.
9. A solid state disk reading operation recording device is characterized by comprising:
a memory for storing a computer program;
a processor for implementing the steps of the method for recording a read operation of a solid state disk according to any one of claims 1 to 6 when executing the computer program.
10. A readable storage medium, characterized in that the readable storage medium has stored thereon a computer program which, when being executed by a processor, realizes the steps of the method for recording a read operation of a solid state disk according to any one of claims 1 to 6.
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| CN202011557586.3A CN112684981B (en) | 2020-12-23 | 2020-12-23 | Method, system and device for recording read operation of solid state disk and readable storage medium |
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