CN102566936A - Method and device for reading disk data, and disk drive device - Google Patents
Method and device for reading disk data, and disk drive device Download PDFInfo
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- CN102566936A CN102566936A CN2010106225513A CN201010622551A CN102566936A CN 102566936 A CN102566936 A CN 102566936A CN 2010106225513 A CN2010106225513 A CN 2010106225513A CN 201010622551 A CN201010622551 A CN 201010622551A CN 102566936 A CN102566936 A CN 102566936A
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Abstract
The embodiment of the invention discloses a method and a device for reading disk data, and a disk drive device. The method comprises the following steps of: obtaining a task identifier of a to-be-executed task when the task starts, wherein the task identifier is used for marking the to-be-executed task; judging whether the task identifier and a disk operation sequence represented by the task identifier exist; if the task identifier and the corresponding disk operation sequence, executing pre-operation on the disk according to the disk operation sequence represented by the task identifier, obtaining the corresponding disk data in advance and storing the obtained data in a buffer; after obtaining the related task instructions of the to-be-executed task, responding to the task instructions according to the disk data obtained in the pre-operation. In the method, pre-operation for the disk is performed according to the stored disk operation sequence, and the corresponding disk data is obtained in advance and stored in the buffer, so that the read speed of the disk data is improved.
Description
Technical field
The present invention relates generally to computer realm, is meant a kind of data in magnetic disk read method especially, installs and comprise the disk drive of data in magnetic disk reading device.
Background technology
Current computer systems no matter carry out system start-up or execution inter-related task, all need realize the exchanges data of CPU (central processing unit) and hard disk from drive unit reading of data such as disk such as hard disks.Yet along with the significantly raising of access speeds such as CPU, internal memory, the raising of the reading speed of disk drives such as hard disk is but very slow always, and therefore, the reading speed of hard disk becomes an important bottleneck that influences computer speed and performance.
In order to improve the reading speed of hard disk, available technology adopting various methods, such as; Use SSD ((solid state disk; Solid state hard disc) product substitutes conventional hard, adopts the reading efficiency of various Cache (buffer memory) operation raising hard disc data, or the like.
The inventor finds in the process that realizes the embodiment of the invention; There is following shortcoming at least in prior art: these measures of the prior art have been played certain function to the raising of hard disk reading speed to a certain extent; But they fundamentally do not change the mode of operation of hard disk; On the operation logic of hard disk itself, do not have breakthrough, reach the purpose of quick reading of data.
Summary of the invention
The embodiment of the invention proposes a kind of data in magnetic disk read method, device and disk drive, according to the disk operating sequence of storage disk is carried out pre-operation, obtains corresponding data in magnetic disk in advance to buffer memory, thereby has improved the reading speed of data in magnetic disk.
The technical scheme of the embodiment of the invention is achieved in that
A kind of data in magnetic disk read method comprises:
Task identification the to be executed the task when task of obtaining begins, wherein, said task identification is to mark said to be executed the task;
Judge whether to exist the disk operating sequence of said task identification and said task identification representative;
If have said task identification and corresponding disk operating sequence, then disk is carried out pre-operation according to the disk operating sequence of said task identification representative, obtain corresponding data in magnetic disk in advance to buffer memory;
After obtaining inter-related task instruction said to be executed the task, respond said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
Preferably, also comprise:
If do not have said task identification and corresponding disk operating sequence, then directly obtain inter-related task instruction said to be executed the task;
Disk operating sequence according to said assignment instructions is operated said disk, obtains corresponding data in magnetic disk;
Respond said assignment instructions according to said data in magnetic disk.
Preferably, also comprise after according to the disk operating sequence of said assignment instructions said disk being operated:
Come said the waiting of mark to execute the task with a task identification;
Store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
Preferably, said disk is specially hard disk drive.
A kind of data in magnetic disk reading device comprises:
First acquiring unit, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task;
Judging unit is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative;
First operating unit is used for when having the disk operating sequence of said task identification and correspondence, according to the disk operating sequence of said task identification representative disk being carried out pre-operation, obtains corresponding data in magnetic disk in advance to buffer memory;
First response unit after being used to obtain inter-related task instruction said to be executed the task, responds said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
Preferably, also comprise:
Second acquisition unit is used for when not having the disk operating sequence of said task identification and correspondence, directly obtains inter-related task instruction said to be executed the task;
Second operating unit is used for according to the disk operating sequence of said assignment instructions said disk being operated, and obtains corresponding data in magnetic disk;
Second response unit is used for responding said assignment instructions according to said data in magnetic disk.
Preferably, also comprise:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
A kind of disk drive comprises buffer memory and first storage unit of storing data, also comprises the data in magnetic disk reading device, and said data in magnetic disk reading device comprises:
First acquiring unit, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task;
Judging unit is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative;
First operating unit is used for when having the disk operating sequence of said task identification and correspondence, according to the disk operating sequence of said task identification representative disk being carried out pre-operation, obtains corresponding data in magnetic disk to said buffer memory in advance;
First response unit after being used to obtain inter-related task instruction said to be executed the task, responds said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
Preferably, said data in magnetic disk reading device also comprises:
Second acquisition unit is used for when not having the disk operating sequence of said task identification and correspondence, directly obtains inter-related task instruction said to be executed the task;
Second operating unit is used for according to the disk operating sequence of said assignment instructions said disk being operated, and obtains corresponding data in magnetic disk;
Second response unit is used for responding said assignment instructions according to said data in magnetic disk.
Preferably, said data in magnetic disk reading device also comprises:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Second storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
Technical scheme of the present invention is carried out pre-operation according to the disk operating sequence of storage to disk; Obtain corresponding data in magnetic disk in advance to buffer memory; Thereby when carrying out corresponding task, can respond fast; Improve the reading speed of data in magnetic disk greatly, thereby improved performance of computer systems, improved user experience.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work property, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of a kind of data in magnetic disk read method first embodiment of the present invention;
Fig. 2 is the structural representation of a kind of data in magnetic disk read method second embodiment of the present invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
With reference to Fig. 1, show the schematic flow sheet of a kind of data in magnetic disk read method first embodiment of the present invention, comprising:
Step S110, task identification the to be executed the task when task of obtaining begins.
Wherein, said task identification is to mark said to be executed the task, on concrete the realization; Each waits to execute the task can to come mark with arabic numeral; Each waits to execute the task also can to come mark with english abbreviation or out of Memory, and promptly each corresponding task identification of waiting to execute the task is distinct between each task identification and other task identification; A task identification represents one to wait to execute the task, and corresponding with the disk operating sequence of assignment instructions said to be executed the task.
Need to prove; In some cases, said wait to execute the task possibly not have corresponding with it task identification, execute the task like waiting of carrying out for the first time; Therefore; In the technical scheme of the embodiment of the invention, in step S110,, all get into step S120 no matter can obtain task identification said to be executed the task.
Step S120, judge whether to exist the disk operating sequence of said task identification and said task identification representative.
Need to prove that in the technical scheme of the embodiment of the invention, do not exist said task identification to have at least two kinds of situation: first kind of situation is in step S110, not obtain task identification said to be executed the task; Second kind of situation is in step S110, to have obtained task identification said to be executed the task, but the said task identification that obtains do not exist in storage unit, also promptly in storage unit, also has corresponding with it task identification.
Therefore, judge whether to exist said task identification to comprise judgement at least to above two kinds of situation.
The set of the disk operating sequence system acting order that to be assignment instructions to be executed the task operate disk; Need to prove; Waiting to execute the task for one to comprise one or more assignment instructions, and an assignment instructions comprises one or more disk commands, therefore; The one or more disk commands of corresponding correspondence of waiting to execute the task, and the disk operating sequence is the record to disk commands.
In step S120,, exist under the situation of task identification except judging whether to exist the task identification; Also to judge whether to exist and the pairing disk operating sequence of said task identification; Corresponding one or more disk operating sequences because wait to execute the task, therefore, the corresponding too one or more disk operating sequences of task identification that mark is said to be executed the task; Certainly, this corresponding relation need be stored in the storage unit in advance.
If exist said task identification to reach and the pairing disk operating sequence of said task identification, then get into step S130, if there is not said task identification and serial, then get into step S150 with the pairing disk operating of said task identification.
Step S130, disk is carried out pre-operation, obtain corresponding data in magnetic disk in advance to buffer memory according to the disk operating sequence of said task identification representative.
If exist said task identification to reach and the pairing disk operating sequence of said task identification, then disk is carried out pre-operation according to the disk operating sequence of said task identification representative, obtain corresponding data in magnetic disk in advance to buffer memory.
The disk operating sequence is the record to disk commands, therefore, can realize the operation to disk according to the disk operating sequence.
Step S140, obtain inter-related task said to be executed the task instruction after, respond said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
After obtaining the inter-related task instruction said to be executed the task of main frame (CPU) transmission, respond said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
Embodiment of the invention technical scheme is when disc driver does not also receive assignment instructions when task begins; Require the data in advance of response from disk, to read to buffer memory assignment instructions to be executed the task; Thereby no longer need be from disk when receiving assignment instructions reading of data; Directly the response of the related data in the buffer memory is got final product, thereby improved response speed greatly, improved the reading speed of hard disc data.
Step S150, directly obtain inter-related task said to be executed the task instruction.
If do not have said task identification and corresponding disk operating sequence, then directly obtain inter-related task instruction said to be executed the task.
Step S160, said disk is operated, obtained corresponding data in magnetic disk according to the disk operating sequence of said assignment instructions.
Step S170, respond said assignment instructions according to said data in magnetic disk.
Said step S150 is identical with the process of reading disk data in the prior art to step S170, in order to save space, repeats no more at this.
In another embodiment of the present invention, can also comprise behind the said step S160:
Step S180, come said the waiting of mark to execute the task with a task identification.
On concrete the realization; Each waits to execute the task can to come mark with arabic numeral; Each waits to execute the task also can to come mark with english abbreviation or out of Memory; Be each corresponding task identification of waiting to execute the task, distinct between each task identification and other task identification, a task identification represents one to wait to execute the task.
Step S190, the said task identification of storage and the pairing disk operating sequence of assignment instructions said to be executed the task.
Corresponding one or more disk operating sequences because wait to execute the task, therefore, the corresponding too one or more disk operating sequences of task identification that mark is said to be executed the task.
The corresponding relation of task identification and disk operating sequence is stored, carry out identically when to be executed the task in next time, can carry out to the technical scheme of step S140 according to step S110, thereby can respond fast, improve the reading speed of data in magnetic disk.
In various embodiments of the present invention; Said disk specifically can be a hard disk drive; Certainly, said disk can also be other drive unit except being the said hard disk drive; Like software-driven device, USB flash disk drive unit or the like, various embodiments of the present invention are not carried out any qualification to this.
Technical scheme of the present invention is carried out pre-operation according to the disk operating sequence of storage to disk; Obtain corresponding data in magnetic disk in advance to buffer memory; Thereby when carrying out corresponding task, can respond fast; Improve the reading speed of data in magnetic disk greatly, thereby improved performance of computer systems, improved user experience.
With reference to Fig. 2, show the structural representation of a kind of data in magnetic disk reading device first embodiment of the present invention.Said data in magnetic disk reading device 200 comprises:
First acquiring unit 210, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task.
Judging unit 220 is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative.
Said data in magnetic disk reading device 200 can also comprise:
In another embodiment of the present invention, said data in magnetic disk reading device 200 can also comprise:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
Need to prove; The said device embodiment of Fig. 2 is corresponding with the said method embodiment of Fig. 1; Therefore install the description that the course of work and the principle of work of each ingredient among the embodiment can reference method embodiment relevant portion; For length is considered, just be not described in detail in device embodiment part.
The invention also discloses a kind of disk drive.Said disk drive comprises first storage unit of buffer memory and storage data, and said disk drive also comprises a data in magnetic disk reading device.
Said data in magnetic disk reading device comprises:
First acquiring unit, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task.
Judging unit is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative.
First operating unit is used for when having said task identification, according to the disk operating sequence of said task identification representative disk is carried out pre-operation, obtains corresponding data in magnetic disk in advance to buffer memory.
First response unit after being used to obtain inter-related task instruction said to be executed the task, responds said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
Said data in magnetic disk reading device can also comprise:
Second acquisition unit is used for when not having said task identification, directly obtains inter-related task instruction said to be executed the task.
Second operating unit is used for according to the disk operating sequence of said assignment instructions said disk being operated, and obtains corresponding data in magnetic disk.
Second response unit is used for responding said assignment instructions according to said data in magnetic disk.
In another embodiment of the present invention, said data in magnetic disk reading device can also comprise:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Second storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
Wherein, said second storage unit and said first storage unit can be the identical functions unit, promptly on concrete the realization, can realize physical bond, and it is divided into first storage unit and second storage unit only is different on the function.
One of ordinary skill in the art will appreciate that; Realize that all or part of step in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be stored in the computer read/write memory medium, and this program comprises the step like above-mentioned method embodiment when carrying out; Described storage medium; As: magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.In each method embodiment of the present invention; The sequence number of said each step can not be used to limit the sequencing of each step; For those of ordinary skills, under the prerequisite of not paying creative work property, the priority of each step is changed also within protection scope of the present invention.
The above is merely preferred embodiment of the present invention, and is in order to restriction the present invention, not all within spirit of the present invention and principle, any modification of being done, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a data in magnetic disk read method is characterized in that, comprising:
Task identification the to be executed the task when task of obtaining begins, wherein, said task identification is to mark said to be executed the task;
Judge whether to exist the disk operating sequence of said task identification and said task identification representative;
If have said task identification and corresponding disk operating sequence, then disk is carried out pre-operation according to the disk operating sequence of said task identification representative, obtain corresponding data in magnetic disk in advance to buffer memory;
After obtaining inter-related task instruction said to be executed the task, respond said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
2. data in magnetic disk read method according to claim 1 is characterized in that, also comprises:
If do not have said task identification and corresponding disk operating sequence, then directly obtain inter-related task instruction said to be executed the task;
Disk operating sequence according to said assignment instructions is operated said disk, obtains corresponding data in magnetic disk;
Respond said assignment instructions according to said data in magnetic disk.
3. data in magnetic disk read method according to claim 2 is characterized in that, also comprises after according to the disk operating sequence of said assignment instructions said disk being operated:
Come said the waiting of mark to execute the task with a task identification;
Store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
4. according to each described data in magnetic disk read method of claim 1 to 3, it is characterized in that said disk is specially hard disk drive.
5. a data in magnetic disk reading device is characterized in that, comprising:
First acquiring unit, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task;
Judging unit is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative;
First operating unit is used for when having the disk operating sequence of said task identification and correspondence, according to the disk operating sequence of said task identification representative disk being carried out pre-operation, obtains corresponding data in magnetic disk in advance to buffer memory;
First response unit after being used to obtain inter-related task instruction said to be executed the task, responds said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
6. data in magnetic disk reading device according to claim 5 is characterized in that, also comprises:
Second acquisition unit is used for when not having the disk operating sequence of said task identification and correspondence, directly obtains inter-related task instruction said to be executed the task;
Second operating unit is used for according to the disk operating sequence of said assignment instructions said disk being operated, and obtains corresponding data in magnetic disk;
Second response unit is used for responding said assignment instructions according to said data in magnetic disk.
7. data in magnetic disk reading device according to claim 6 is characterized in that, also comprises:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
8. a disk drive comprises buffer memory and first storage unit of storing data, it is characterized in that also comprise the data in magnetic disk reading device, said data in magnetic disk reading device comprises:
First acquiring unit, task identification to be executed the task when being used to obtain task and beginning, wherein, said task identification is to mark said to be executed the task;
Judging unit is used to judge whether to exist the disk operating sequence of said task identification and said task identification representative;
First operating unit is used for when having the disk operating sequence of said task identification and correspondence, according to the disk operating sequence of said task identification representative disk being carried out pre-operation, obtains corresponding data in magnetic disk to said buffer memory in advance;
First response unit after being used to obtain inter-related task instruction said to be executed the task, responds said assignment instructions according to the said data in magnetic disk that pre-operation obtained.
9. disk drive according to claim 8 is characterized in that, said data in magnetic disk reading device also comprises:
Second acquisition unit is used for when not having the disk operating sequence of said task identification and correspondence, directly obtains inter-related task instruction said to be executed the task;
Second operating unit is used for according to the disk operating sequence of said assignment instructions said disk being operated, and obtains corresponding data in magnetic disk;
Second response unit is used for responding said assignment instructions according to said data in magnetic disk.
10. disk drive according to claim 9 is characterized in that, said data in magnetic disk reading device also comprises:
Indexing unit is used for coming said the waiting of mark to execute the task with a task identification;
Second storage unit is used to store said task identification and the pairing disk operating sequence of assignment instructions said to be executed the task.
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| CN201010622551.3A CN102566936B (en) | 2010-12-28 | 2010-12-28 | Method and device for reading disk data, and disk drive device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010622551.3A CN102566936B (en) | 2010-12-28 | 2010-12-28 | Method and device for reading disk data, and disk drive device |
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| CN102566936B CN102566936B (en) | 2015-04-29 |
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| US6349358B1 (en) * | 1998-08-31 | 2002-02-19 | Nec Corporation | Magnetic disc control apparatus capable of detecting a near sequential I/O and storing it to a cache memory, and a system thereof |
| CN1538284A (en) * | 2003-04-14 | 2004-10-20 | ��ʽ���������Ƽ� | Storage device |
| CN101305334A (en) * | 2004-12-29 | 2008-11-12 | 辉达公司 | Intelligent storage engine for disk drive operations with reduced local bus traffic |
| US20090287884A1 (en) * | 2007-01-30 | 2009-11-19 | Fujitsu Limited | Information processing system and information processing method |
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