CN107632790A - A kind of method that Disk bandwidth is controlled in distributed memory system - Google Patents
A kind of method that Disk bandwidth is controlled in distributed memory system Download PDFInfo
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- CN107632790A CN107632790A CN201710915966.1A CN201710915966A CN107632790A CN 107632790 A CN107632790 A CN 107632790A CN 201710915966 A CN201710915966 A CN 201710915966A CN 107632790 A CN107632790 A CN 107632790A
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Abstract
The present invention discloses a kind of method that Disk bandwidth is controlled in distributed memory system, is related to technical field of distributed memory；On the premise of not causing disk performance to decline in disk, Disk bandwidth maximum upper limit capacity, it is Disk bandwidth maximum upper limit capacity to set throttling space total capacity, if the size that throttling space has free space is storage system just in the size of read/write data, then take the free space of the size of the data away from throttling space, if throttle space in without storage system just read/write data size free space, then carry out waiting until the size free space that the data in throttling space be present；When read/write data process terminates, throttling space discharges the free space that size of data during this occupies, and concurrently send semaphore activation to wait the read/write data process for taking free space.
Description
Technical field
The present invention discloses a kind of method for controlling Disk bandwidth, is related to technical field of distributed memory, specifically one
The method that Disk bandwidth is controlled in kind distributed memory system.
Background technology
In distributed memory system, iops and bandwidth are always to weigh the index of systematic function, require software in theory
Bandwidth is the bigger the better.When software receives data storage, it can be dumped on disk, if middle do not make software to data storage
Limitation, the bandwidth of software all will reflect on Disk bandwidth, but Disk bandwidth has the upper limit, if simply give software
Increase data storage pressure has been even more than the upper limit of Disk bandwidth, and the burden of disk will increase so as to cause disk performance
Decline.
The present invention provides a kind of method that Disk bandwidth is controlled in distributed memory system, is set by throttling, and control is not
The Disk bandwidth total amount taken with disk access person.
The content of the invention
Demand and weak point of the present invention for the development of current technology, there is provided control magnetic in a kind of distributed memory system
The wide method of dribbling.
A kind of method that Disk bandwidth is controlled in distributed memory system, for not causing disk performance decline in disk
Under the premise of, Disk bandwidth maximum upper limit capacity, it is Disk bandwidth maximum upper limit capacity to set throttling space total capacity,
It is storage system just in the size of read/write data that if throttling space, which has the size of free space, from throttling space
Take the free space of the size of the data away,
If throttle space in without storage system just read/write data size free space, waited until
The size free space of the data in throttling space be present；
When read/write data process terminates, throttling space discharges the free space that size of data during this occupies, and sends signal
Amount activation waits the read/write data process for taking free space.
In throttling space in described method, set_max methods, the size of setting throttling space total capacity are used.
In throttling space in described method, using get methods, obtain just read/write data size free space,
When the space occupied space that wherein throttles subtracts the space shared by the size of read/write data more than throttling space total capacity, use
Get methods are waited, and the space occupied space that throttles subtracts the size institute of read/write data no more than throttling space total capacity
During the space accounted for, take space shared by the size of read/write data away from throttling space using get methods, be then back to.
In throttling space in described method, using put methods, discharge shared by the read/write data process completed
Free space, the read/write data process that currently used get methods wait for is activated by semaphore.
The present invention has an advantageous effect in that compared with prior art：
The present invention provides the implementation method that Disk bandwidth is controlled in a kind of distributed memory system, for not causing disk in disk
On the premise of hydraulic performance decline, Disk bandwidth maximum upper limit capacity, throttling space total capacity is set to hold for Disk bandwidth maximum upper limit
Amount, if it is storage system just in the size of read/write data that throttling space, which has the size of free space, taken from throttling space
Walk the free space of the size of the data, if throttling space in without storage system just read/write data size sky
Free space, then carry out waiting until the size free space that the data in throttling space be present；When read/write data process terminates,
Throttling space discharges the free space that size of data during this occupies, and concurrently send semaphore activation to wait and takes free space
Read/write data process；
The inventive method will retain by using throttle valve technology in the request of disk read/write data in software, reduce same
To the read/write pressure of disk in one time point, the increase disk burden for avoiding simply causes the decline problem of disk performance, improves
The performance of system.
Brief description of the drawings
Fig. 1 throttling space total capacity schematic diagrames；
Fig. 2 get methods obtain the free space schematic diagram in throttling space；
The schematic diagram that takes up space in Fig. 3 put methods release throttling space；
Fig. 4 the inventive method schematic flow sheets.
Embodiment
The present invention provides the implementation method that Disk bandwidth is controlled in a kind of distributed memory system, for not causing in disk
On the premise of disk performance declines, Disk bandwidth maximum upper limit capacity, it is in Disk bandwidth maximum to set throttling space total capacity
Limited capacity amount, if it is storage system just in the size of read/write data that throttling space, which has the size of free space, from throttling space
In take away the data size free space, if throttling space in without storage system just in the size of read/write data
Free space, then carry out waiting until the size free space of the data in throttling space be present；When read/write data process
Terminate, throttling space discharges the free space that size of data during this occupies, concurrently send semaphore activation wait take it is idle
The read/write data process in space.
For the object, technical solutions and advantages of the present invention are more clearly understood, below in conjunction with specific embodiment, to this hair
Bright further description.
Using the inventive method, unless otherwise specified, bandwidth is unified unified according to unit bit/s, capacity or size of data
According to unit bit,
On the premise of not causing disk performance to decline in disk, if Disk bandwidth maximum upper limit capacity N, then using set_
It is to represent that throttling space total capacity does not all have in Disk bandwidth maximum upper limit capacity N, Fig. 1 that max methods, which set throttling space total capacity,
Different occupancy；
And client, when to storage system read/write data, size of data x uses get methods in the space that throttles,
If throttling space exist the size of free space for storage system just read/write data i.e. x unit of size free time
Space, then take the free space of x unit away from throttling space, such as Fig. 2,
If carry out waiting until throttling space using get methods without the free space of x unit in the space that throttles
The middle free space that x unit be present；
When read/write data process terminates, using the put methods in throttling space discharge that size of data during this occupies x singly
The free space of position, such as Fig. 3, semaphore activation is concurrently sent to wait the read/write data process for taking free space；
And after the read/write data process of wait state receives semaphore by get methods, it is activated, again attempts to get methods
Take the free space of process needs.
By above-mentioned steps, present invention is mainly used for the distribution for coordinating resource between different users, can use section
Fluid space represents disk read-write bandwidth, the total amount of the Disk bandwidth for coordinating different disk visitor occupancy, avoids simply
Increase disk burden causes the decline of disk performance.
And throttle space can image be referred to as choke valve Throttle, utilize the read/write bandwidth pressure of choke valve disk
All the time the upper limit is handled not over Disk bandwidth, the increase disk burden so as to avoid simply causes the decline of disk performance
Problem.
Claims (4)
1. the method for Disk bandwidth is controlled in a kind of distributed memory system, it is characterised in that for not causing disk in disk
On the premise of declining, Disk bandwidth maximum upper limit capacity, it is Disk bandwidth maximum upper limit capacity to set throttling space total capacity,
It is storage system just in the size of read/write data that if throttling space, which has the size of free space, from throttling space
Take the free space of the size of the data away,
If throttle space in without storage system just read/write data size free space, waited until
The size free space of the data in throttling space be present；
When read/write data process terminates, throttling space discharges the free space that size of data during this occupies, and sends signal
Amount activation waits the read/write data process for taking free space.
2. according to the method for claim 1, it is characterised in that in throttling space, using set_max methods, set throttling empty
Between total capacity size.
3. according to the method for claim 2, it is characterised in that in throttling space, using get methods, obtain just in read/write
The free space of the size of data, wherein throttling space occupied space, which is more than throttling space total capacity, subtracts read/write data
During space shared by size, waited using get methods, and the space occupied space that throttles is no more than throttling space total capacity
When subtracting the space shared by the size of read/write data, the size institute of read/write data is taken away from throttling space using get methods
The space accounted for, is then back to.
4. according to the method for claim 3, it is characterised in that in throttling space, using put methods, discharge what is completed
Free space shared by read/write data process, the read/write data mistake that currently used get methods wait for is activated by semaphore
Journey.
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| CN201710915966.1A CN107632790A (en) | 2017-09-30 | 2017-09-30 | A kind of method that Disk bandwidth is controlled in distributed memory system |
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| CN201710915966.1A CN107632790A (en) | 2017-09-30 | 2017-09-30 | A kind of method that Disk bandwidth is controlled in distributed memory system |
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Citations (4)
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| CN101872303A (en) * | 2010-06-03 | 2010-10-27 | 深圳天源迪科信息技术股份有限公司 | Method for processing Diameter protocol message |
| CN102279714A (en) * | 2011-08-26 | 2011-12-14 | 上海文广科技（集团）有限公司 | Method and device for controlling input/output (IO) requests |
| CN105224237A (en) * | 2014-05-26 | 2016-01-06 | 华为技术有限公司 | A kind of date storage method and device |
| CN107566514A (en) * | 2017-09-22 | 2018-01-09 | 郑州云海信息技术有限公司 | A kind of method that metadata request quantity is controlled in distributed memory system |
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2017
- 2017-09-30 CN CN201710915966.1A patent/CN107632790A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101872303A (en) * | 2010-06-03 | 2010-10-27 | 深圳天源迪科信息技术股份有限公司 | Method for processing Diameter protocol message |
| CN102279714A (en) * | 2011-08-26 | 2011-12-14 | 上海文广科技（集团）有限公司 | Method and device for controlling input/output (IO) requests |
| CN105224237A (en) * | 2014-05-26 | 2016-01-06 | 华为技术有限公司 | A kind of date storage method and device |
| CN107566514A (en) * | 2017-09-22 | 2018-01-09 | 郑州云海信息技术有限公司 | A kind of method that metadata request quantity is controlled in distributed memory system |
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Application publication date: 20180126 |