CN107332732A - A kind of method of sampling of message flow, device and routing device - Google Patents
A kind of method of sampling of message flow, device and routing device Download PDFInfo
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- CN107332732A CN107332732A CN201710495409.9A CN201710495409A CN107332732A CN 107332732 A CN107332732 A CN 107332732A CN 201710495409 A CN201710495409 A CN 201710495409A CN 107332732 A CN107332732 A CN 107332732A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0888—Throughput
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0876—Network utilisation, e.g. volume of load or congestion level
- H04L43/0894—Packet rate
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
- H04L45/38—Flow based routing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L47/00—Traffic control in data switching networks
- H04L47/70—Admission control; Resource allocation
- H04L47/82—Miscellaneous aspects
- H04L47/822—Collecting or measuring resource availability data
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Abstract
The embodiment of the present invention provides a kind of method of sampling of message flow, device and routing device, it is related to communication technical field, the problem of solution static statistics method used in the prior art can not know the situation of change of the message flow in the working time on network interface.This method includes：The message received by network interface is read in circulation, and records the message number that success is read every time, in the case where having read to be masked as the first mark, and the message number read according to each success updates statistical variable, and statistical variable is used for the number for reflecting that message is cumulative；When reaching in each sampling period, mark will be read and be set to the second mark, and read statistical variable, mark will have been read after running through and has been set to the first mark, the reception condition of message in the sampling period is exported according to the statistical variable read.The present invention is used for the statistics of message flow.
Description
Technical field
The present invention relates to communication technical field, more particularly to a kind of method of sampling of message flow, device and routing device.
Background technology
With the development of Internet technology, network has become a part, the network data of magnanimity necessary to daily life
Requirement to the data throughout of network communication equipment is also stricter.Router is set as important necessary in communication network
It is standby, the reliability of the data communication of network where the performance of its data transmit-receive is directly determined, to the business carried in network
Normal operation serve support and limitation effect.
In the prior art, the message flow on a certain network interface of router is made typically by the mode of static statistics
Statistics, i.e., carry out simply adding up to the message received on network interface.In can only so reflecting router operationally
Total message reception amount, and the situation of change of the upward message flow of recipient can not be reflected, so that in route
Some FAQs appeared in device are that can not analyze concrete reason according to total message reception amount in the working time.
For example, for the common packet loss problem of router, above-mentioned static statistics mode can only determine network interface institute during operation
The sum of the packet loss of statistics, it is impossible to as according to judge Network Packet Loss the reason for be due to the number networks exceed interface institute
The performance of the network chip used, or software layer processing speed cause very much buffer to deplete the packet loss of appearance slowly.
Therefore, it is necessary to enter Mobile state description to the message flow on the network interface of routing device, satisfied the need so as to provide
The data analyzed by the service behaviour of equipment and the working condition of software layer, are the technical problems of current urgent need to resolve.
The content of the invention
Embodiments of the invention provide a kind of method of sampling of message flow, device and routing device, solve prior art
Employed in static statistics method the problem of can not know the situation of change of message flow in the working time on network interface.
To reach above-mentioned purpose, embodiments of the invention are adopted the following technical scheme that：
The first aspect of the embodiment of the present invention there is provided a kind of routing device, including：
Network interface, for receiving message；
From core, the thread created from core, which is used to circulate, to be read and the report from the reception of core corresponding network interface
Text, and the message number that success is read every time is recorded, in the case where having read to be masked as the first mark, according to successfully reading every time
Message number update statistical variable, the statistical variable is used for the number for reflecting that message is cumulative；Forwarding is additionally operable to by the net
The message of network interface；
The thread created on main core, the main core is used for when reaching in each sampling period, and the mark of having read is set to
Second mark, and the statistical variable is read, the mark of having read is set to first mark after running through, read according to described
The statistical variable got exports the reception condition of message in the sampling period.
The second aspect of the embodiment of the present invention includes there is provided a kind of method of sampling of message flow, methods described：
The message received by network interface is read in circulation, and records the message number that success is read every time, is reading mark
In the case of for the first mark, the message number read according to each success updates statistical variable, and the statistical variable is used for anti-
Reflect the cumulative number of message；
When reaching in each sampling period, the mark of having read is set to the second mark, and reads the statistical variable,
The mark of having read is set to first mark after running through, exported according to the statistical variable read in the sampling period
The reception condition of message.
There is provided a kind of sampling apparatus of message flow for the third aspect of the embodiment of the present invention, it is characterised in that described device
Including：
Read module, reads the message received by network interface, and record the message number that success is read every time for circulating
Mesh；
Update module, in the case where having read to be masked as the first mark, according to the message number of each success reading
Statistical variable is updated, the statistical variable is used for the number for reflecting that message is cumulative；
Processing module, for when reaching in each sampling period, the mark of having read being set into the second mark, and read institute
Statistical variable is stated, the mark of having read is set to first mark after running through；
Output module, the statistical variable for being read according to exports the reception condition of message in the sampling period.
The method of sampling, device and the routing device of message flow provided in an embodiment of the present invention, are read by net by circulating
The message of network interface, and record the message number that success is read every time, in the case where having read to be masked as the first mark, root
The message number read according to each success updates statistical variable, and the statistical variable is used for the number for reflecting that message is cumulative；Each
When sampling period reaches, mark will have been read and be set to the second mark, and read statistical variable, mark will have been read after running through and has been set to the
One mark, the reception condition of message in the sampling period is exported according to the statistical variable read.
The mode for the static statistics taken compared to prior art be only capable of obtaining router operationally in it is total
By when reaching in each sampling period, reading statistical variable in message reception amount, this programme, the statistics read according to this becomes
Amount exports the reception condition of message in the sampling period, so obtain routing device operationally in each sampling period
Bag asks reception condition, so that the situation of the dynamic change of message flow is obtained, for some problems appeared in routing device
Positioning and message flow analysis have good directive function.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, may be used also
To obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of method flow diagram of the method for sampling of message flow provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation of the sampling apparatus of message flow provided in an embodiment of the present invention；
Fig. 3 is a kind of block schematic illustration of routing device provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
For the ease of clearly describing the technical scheme of the embodiment of the present invention, in an embodiment of the present invention, employ " the
One ", the printed words such as " second " make a distinction to function or the essentially identical identical entry of effect or similar item, and those skilled in the art can
To understand that the printed words such as " first ", " second " are not defined to quantity and execution order.
The routing device referred in the embodiment of the present invention, polycaryon processor used in the routing device includes a main core
With multiple from core (being referred to as forwarding core).The main core is responsible for the related business of operation processing message forwarding.Mainly born from core
Duty is forwarded the message of reception, it is ensured that the message that software processing can be currently to carry on quick obtaining network interface.
Based on the content of above-mentioned routing device, the embodiment of the present invention provides a kind of method of sampling of message flow, such as Fig. 1
Shown, this method includes：
101st, the message received by network interface is read in circulation, and records the message number that success is read every time, is being read
In the case of being masked as the first mark, statistical variable is updated according to the message number that each success is read.
Wherein, above-mentioned statistical variable is used for the number for reflecting that message is cumulative.
Exemplary, the executive agent in above-mentioned steps 101 can be from core or in the thread set up from core.
It is preferred that, in order to embody the basis in the variation tendency of message number in the sampling period, above-mentioned step 101
The message number that success is read every time, which updates statistical variable, to be included：
A1, according to every time success read message number residing for message number interval, by counting messages structure with the report
The corresponding statistical variable increase preset constant of literary number interval.
Wherein, above-mentioned counting messages structure includes statistical variable corresponding with each message number interval.
Optionally, count for convenience, above-mentioned preset constant is the numerical value more than or equal to 0.
It is further preferred that above-mentioned counting messages structure arranges for each statistical variable in array, and array according to it
The message number interval that order is corresponding in turn to is continuous.
Exemplary, if above-mentioned message number interval is 4,4 statistical variables are included in array, and according to array
Put in order respectively a, b, c and d, then corresponding message number interval be：[0-1/4*L1]、(1/4*L1-1/2*L1)、
[1/2*L1-3/4*L1] and (3/4*L1-L1], wherein：L1 represents BD ring maximum lengths.Corresponding above-mentioned step A1 is specific
For：The message number interval residing for message number read according to each success, by system corresponding with the message number interval in array
Count variable increase preset constant.If for example, certain message number interval once succeeded residing for the message number read is [0-1/4*
L1], then the numerical value of the statistical variable a in array increases preset constant；If the report succeeded residing for the message number read next time
Literary number interval is (1/4*L1-1/2*L1), then the numerical value increase of the statistical variable b in array and last time identical preset constant.
102nd, when reaching in each sampling period, mark will have been read and be set to the second mark, and read statistical variable, run through
Mark will have been read afterwards and has been set to the first mark, and the reception condition of message in the sampling period is exported according to the statistical variable read.
Exemplary, the executive agent of above-mentioned steps 102 can be main core or the thread set up in main core.
Exemplary, the above-mentioned sampling period is flowTime, and the flowTime is configurable in operation.Specifically
, staff or technical staff can configure the flowTime as needed, for example, the sampling period can for 10S or
1S etc..
Exemplary, the above-mentioned mark of reading can be represented with " 0 " " 1 ", if specifically, this, which has read mark, is equal to 1, walking
In rapid 101 statistical variable is updated from core or from the message number that the thread in core is read according to each success；If this has read mark
Equal to 0, then the thread in the main core or main core in step 102 reads the numerical value of each statistical variable in array, will after running through
ReadFlag is set to 1.Then, the thread in main core or main core, and execution is circulated always from core or from the thread in core.When
So, when reaching in the sampling period, the thread in main core or main core can will read mark and be set to 0.Certainly, above-mentioned 0 and 1 are only
A kind of example, in actual applications, can also be represented, do not limit here, the present embodiment is for side using other marks
Just with being illustrated exemplified by 0 and 1.
Optionally, in order to prevent from the loss of data in internal memory occur after power-off according to reading in the problem of, above-mentioned steps 102
To statistical variable export the reception condition of message in the sampling period, including：
The statistical variable that B1, basis are read exports the reception condition of message in the sampling period into caching.
By above-mentioned step 102a content, the reception condition of message is exported into caching, so that after power-off
Data corresponding to the reception condition of the message will not lose, while being also convenient for the later stage by these data to know network interface
And the information such as working condition of whole routing device.
Exemplary, the reception of message in the sampling period is exported in above-mentioned steps 102 according to the statistical variable read
Situation, including：
102a, the statistical variable that the statistical variable in the n-th cycle read is subtracted to the N-1 cycle, are sampled
The message number received in cycle.
102b, the message number for exporting reception in the sampling period.
Optionally, it is set to the first mark mark will have been read after the step of reading statistical variable in above-mentioned steps 102
The step of before, this method also includes：
C1, statistical variable reset.
Based on above-mentioned step C1 content, sampling week is exported according to the statistical variable read in above-mentioned steps 102
The reception condition of message in phase, including：Message in the sampling period is directly exported according to the numerical value of the statistical variable read
Reception condition, i.e., need not do any calculation process, directly export the reception condition of message in the sampling period.
The method of sampling of message flow provided in an embodiment of the present invention, the report received by network interface is read by circulating
Text, and the message number that success is read every time is recorded, in the case where having read to be masked as the first mark, according to successfully reading every time
Message number update statistical variable, the statistical variable is used for the number for reflecting that message is cumulative；When reaching in each sampling period,
Mark will have been read and be set to the second mark, and read statistical variable, mark will have been read after running through and has been set to the first mark, according to reading
To statistical variable export the reception condition of message in the sampling period.
The mode for the static statistics taken compared to prior art be only capable of obtaining router operationally in it is total
By when reaching in each sampling period, reading statistical variable in message reception amount, this programme, the statistics read according to this becomes
Amount exports the reception condition of message in the sampling period, so obtain routing device operationally in each sampling period
Bag asks reception condition, so that the situation of the dynamic change of message flow is obtained, for some problems appeared in routing device
Positioning and message flow analysis have good directive function.
The associated description in the embodiment of the method for sampling based on the corresponding message flows of Fig. 1 is implemented to the present invention below
A kind of sampling apparatus for message flow that example is provided is introduced.The technology art related to above-described embodiment in following examples
The explanation of language, concept etc. is referred to the above embodiments, repeats no more here.
The embodiment of the present invention provides a kind of sampling apparatus of message flow, as shown in Fig. 2 the device 2 includes：Read module
21st, update module 22, processing module 23 and output module 24, wherein：
Read module 21, reads the message received by network interface, and record the message that success is read every time for circulating
Number.
Update module 22, in the case where having read to be masked as the first mark, according to the message number of each success reading
Mesh updates statistical variable, and statistical variable is used for the number for reflecting that message is cumulative.
Processing module 23, for when reaching in each sampling period, mark will have been read and be set to the second mark, and read statistics
Variable, after running through will read mark is set to the first mark.
Output module 24, the reception condition for exporting message in the sampling period according to the statistical variable read.
Exemplary, in order to embody the variation tendency of message number in the sampling period, above-mentioned update module 22 exists
When the message number read according to each success updates statistical variable, specifically for：
The message number interval residing for message number read according to each success, by counting messages structure with the message number
Interval corresponding statistical variable increase preset constant.
Wherein, above-mentioned counting messages structure includes statistical variable corresponding with each message number interval.
Optionally, count for convenience, above-mentioned preset constant is the numerical value more than or equal to 0.
It is further preferred that above-mentioned counting messages structure arranges for each statistical variable in array, and array according to it
The message number interval that order is corresponding in turn to is continuous.
Optionally, in order to prevent power-off after there is the loss of data in internal memory the problem of, above-mentioned output module 24 is specific
For：
The reception condition of message in the sampling period is exported into caching according to the statistical variable read.
The reception condition of message is exported into caching by above-mentioned output module 24, so that the message after power-off
Reception condition corresponding to data will not lose, network interface is known by these data and whole while being also convenient for the later stage
The information such as the working condition of individual routing device.
It is exemplary, above-mentioned output module 24 specifically for：
The statistical variable in the n-th cycle read is subtracted to the statistical variable in the N-1 cycle, obtained in the sampling period
The message number of reception.
Export the message number received in the sampling period.
Optionally, as shown in Fig. 2 the device 2 also includes：Dump block 25, wherein：
Dump block 25, for above-mentioned statistical variable to be reset.
The mode for the static statistics taken compared to prior art be only capable of obtaining router operationally in it is total
By when reaching in each sampling period, reading statistical variable in message reception amount, this programme, the statistics read according to this becomes
Amount exports the reception condition of message in the sampling period, so obtain routing device operationally in each sampling period
Bag asks reception condition, so that the situation of the dynamic change of message flow is obtained, for some problems appeared in routing device
Positioning and message flow analysis have good directive function.
The associated description in the embodiment of the method for sampling based on the corresponding message flows of Fig. 1 is implemented to the present invention below
A kind of routing device that example is provided is introduced.The technical term related to above-described embodiment, concept etc. in following examples
Illustrate to be referred to the above embodiments, repeat no more here.
The embodiment of the present invention provides a kind of routing device, and the routing device includes：
Network interface, for receiving message.
From core, the thread that should be created from core is used to circulating the message read by with being received from the corresponding network interface of core,
And the message number that success is read every time is recorded, in the case where having read to be masked as the first mark, read according to each success
Message number updates statistical variable, and statistical variable is used for the number for reflecting that message is cumulative；Forwarding is additionally operable to by the network interface
The message of reception.
The thread created on main core, the main core is used for when reaching in each sampling period, will read mark and has been set to the second mark
Know, and read statistical variable, the mark of having read is set to the first mark after running through, exported according to the statistical variable read
The reception condition of message in the sampling period.
Exemplary, above-mentioned network interface is additionally operable to the message carry by reception on BD rings.
Specifically, receiving chip comprising message in above-mentioned network interface, the message receives chip and hangs the message of reception
It is loaded on BD rings.
Based on above-mentioned content, the above-mentioned thread created from core specifically for：
Message is read in circulation from BD rings, and records the message number that success is read every time, is reading to be masked as the first mark
In the case of knowledge, the message number read according to each success updates statistical variable, and the statistical variable is used to reflect that message adds up
Number；Forward the message received by network interface.
It is preferred that, being created on above-mentioned main core has first thread and the second thread.Wherein：
The first thread is used for when reaching in each sampling period, will read mark and has been set to the second mark, and has read statistics
Variable, after running through will read mark is set to the first mark.
Second thread is used for the reception condition that message in the sampling period is exported according to the statistical variable read.
Wherein, above-mentioned first thread and the second cross-thread are synchronized by mutex amount flowSem, the second thread
Block waiting signal amount flowSem, release semaphore flowSem, the second thread ability root after first thread reads statistical variable
The reception condition of message in the sampling period is exported according to the statistical variable read.
It is preferred that, in order to embody the variation tendency of message number in the sampling period, the above-mentioned line created from core
Journey according to every time success read message number update statistical variable when, specifically for：
The message number interval residing for message number read according to each success, by counting messages structure with the message number
Interval corresponding statistical variable increase preset constant.
Wherein, above-mentioned counting messages structure includes statistical variable corresponding with each message number interval.
Optionally, count for convenience, above-mentioned preset constant is the numerical value more than or equal to 0.
It is further preferred that above-mentioned counting messages structure arranges for each statistical variable in array, and array according to it
The message number interval that order is corresponding in turn to is continuous.
Exemplary, if above-mentioned message number interval is 4,4 statistical variables are included in array, and according to array
Put in order respectively a, b, c and d, then corresponding message number interval can be：[0-1/4*L1]、(1/4*L1-1/2*
L1), [1/2*L1-3/4*L1] and (3/4*L1-L1], wherein：L1 represents BD ring maximum lengths.Corresponding above-mentioned step A1
Specially：The message number interval residing for message number read according to each success, will be corresponding with the message number interval in array
Statistical variable increase preset constant.If for example, certain message number interval once succeeded residing for the message number read is [0-1/
4*L1], then the numerical value of the statistical variable a in array increases preset constant；If succeed residing for the message number read next time
Message number interval is (1/4*L1-1/2*L1), then the numerical value increase of the statistical variable b in array and last time identical are default normal
Number.
Exemplary, the thread created on above-mentioned main core exports sampling week in the statistical variable read according to
In phase during the reception condition of message, also particularly useful for：
The statistical variable in the n-th cycle read is subtracted to the statistical variable in the N-1 cycle, obtained in the sampling period
The reception condition of message.
Export the reception condition of message in the sampling period.
Optionally, the thread created on above-mentioned main core is additionally operable to：Statistical variable is reset.When the thread created on main core
When statistical variable is reset, the thread created on main core directly exports sampling week according to the numerical value to statistical variable of reading
The reception condition of message in phase.
Routing device provided in an embodiment of the present invention, is read by corresponding with from core by the thread loops created from core
The message that network interface is received, and the message number that success is read every time is recorded, in the case where having read to be masked as the first mark,
The message number read according to each success updates statistical variable, and statistical variable is used for the number for reflecting that message is cumulative；It is additionally operable to
Forward the message received by the network interface.By the thread that is created on the main core when reaching in each sampling period, by
Read mark and be set to the second mark, and read statistical variable, the mark of having read is set to the first mark after running through, according to reading
To statistical variable export the reception condition of message in the sampling period.
The mode for the static statistics taken compared to prior art be only capable of obtaining router operationally in it is total
The thread created on main core in message reception amount, this programme is by when reaching in each sampling period, reading statistical variable, root
The reception condition of message in the sampling period is exported according to the statistical variable read, and then between obtaining routing device operationally
Bag in each interior sampling period asks reception condition, so that the situation of the dynamic change of message flow is obtained, for routing device
Appeared in some problems positioning and message flow analysis have good directive function.
Below by the framework based on the polycaryon processor in router, explained with specific content and illustrate above-mentioned retouched
The content for the routing device stated, detailed content refers to the content of following components：
(a) one is created in the framework based on the polycaryon processor in above-mentioned router, the embodiment of the present invention on main core
Individual thread flowCtrl, the thread is responsible for periodically reading each from the reception condition of core message within the sampling period, false
If the sampling period is flowTime, the sampling period is can configure in running.Another thread is created in main core
FlowProcess, thread flowProcess all are counted according to what is obtained in each cycle from the message flow of core
Calculate, it is possible to depict message in continuous time and receive the situation of change of flow, and statistical result is preserved into Flash, use
In purposes such as flow analyses, wherein：Carried out between thread flowCtrl and flowProcess by mutex amount flowSem
It is synchronous, thread flowProcess obstruction waiting signal amount flowSem, release signal after thread flowCtrl reads sampled value
FlowSem is measured, thread flowProcess proceeds by message flow calculating.
(b) in the framework based on the polycaryon processor in above-mentioned router, the embodiment of the present invention at each from core
A thread flowRecv is created, the thread is responsible for circulation and reads message from BD rings, the message of reception is handled and turned
Hair.Meanwhile, thread flowRecv can record the successful message number read from BD rings each time, and storage is arrived for being somebody's turn to do from core
The message of foundation is received in statistical framework flowSum, and the thread flowCtrl on main core is read out and analyzed.
(c) chip is received based on the message used in the network interface in routing device, to the BD rings described in (b),
Message receives chip and the message of reception can be mounted on BD rings.Assuming that the BD rings maximum length is L1, on current BD rings
The message number of carrying is L2.As L2=L1, if software does not read message from BD rings, subsequent packet will be dropped.
(d) based on the BD ring lengths described in (c), it is assumed that the message number that each software can successfully be read from BD rings
For L3, then L3≤L2≤L1.It is [0-1/4*L1], (1/4*L1-1/2*L1), [1/2*L1- that message is received into number interval division
3/4*L1]、(3/4*L1-L1].Message number L3 according to reading every time falls in different interval number of times, it is possible to reflect one
The size variation situation of message flow in the individual sampling period.
(e) for described in (b) message receive statistical framework flowSum [], the structure for each is from core,
Can be the array that a length is M, M size receives the number of a number interval for above-mentioned middle message.Pass through mark
ReadFlag realizes main core thread flowCtrl and from nothings of the core thread flowRecv to statistical framework flowSum []
Lock is accessed, it is to avoid reduction forwarding performance.
Specifically, circulating the message for reading and being received by the network interface of routing device from core thread flowRecv, and remember
The record message number that success is read every time, when readFlag is equal to 1, array is updated according to the message number that each success is read
In each statistical variable.
ReadFlag is set to 0, and read each in array by main core thread flowCtrl when reaching in each sampling period
The numerical value of individual statistical variable, 1 is set to after running through by readFlag.Then from core thread flowRecv according to the readFlag
It is worth for 1, is updated each statistical variable in array, circulates always, until terminates.
(f) from core in the message number L3 after BD rings read message, indicated every time according to readFlag and this reads
Interval distribution, the corresponding element in statistical framework flowSum [] is added up.
(g) when the cycle flowTime that principal epipolar line journey flowCtrl samples is reached, traversal reads the system of each forwarding core
Count structure flowSum.After principal epipolar line journey flowCtrl completes the statistical framework flowSum [] of all forwarding cores reading, release
Discharge signal amount flowSem, sampled value is handled by thread flowProcess.And again wait for sampling period flowTime arrival.
(h), can be with by the setting to principal epipolar line journey flowCtrl sampling period flowTime and readFlag mark
Dynamic is turned off or on from the traffic sampling on core, realizes the purpose opened on demand.For example, by the above-mentioned sampling period
FlowTime is set to infinitely great, and readFlag is set to 0, and because readFlag not work from core for 0, the sampling period is nothing
The arrival less than the sampling period such as poor ambassador winner core can not also work, and thus close the function of flow collection and processing.
According to the description of (a)-(h) contents above, with one for core, framework is as shown in Figure 3 for of the invention realizing.Base
Circulated in the block schematic illustration of the routing device shown in Fig. 3, this programme by the thread flowRecv created from core from BD
Message is read on ring, and records the message number that success is read every time, in the case where having read to be masked as the first mark, according to every
The message number that secondary success is read updates statistical variable, and the statistical variable is used for the number for reflecting that message is cumulative.Created on main core
Thread flowCtrl when reaching in each sampling period, mark will have been read and be set to the second mark, and read statistical variable, read
Mark will have been read after complete and has been set to the first mark；The thread flowProcess created on main core is defeated according to the statistical variable read
Go out the reception condition of message in the sampling period.The reception condition of message in each sampling period can be so obtained, so as to
To obtain trend of the message number with time dynamic.
It should be noted that above-mentioned is only to illustrate process of the embodiment of the present invention by taking BD ring reception patterns as an example, this
In be not defined.And the message flow method of sampling that this programme is provided can also be applied in the mode that other receive message.
Through the above description of the embodiments, it is apparent to those skilled in the art that, for description
It is convenient and succinct, can as needed will be upper only with the division progress of above-mentioned each functional module for example, in practical application
State function distribution to be completed by different functional modules, i.e., the internal structure of device is divided into different functional modules, to complete
All or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, before may be referred to
The corresponding process in embodiment of the method is stated, be will not be repeated here.
, can in several embodiments provided herein, it should be understood that the sampling apparatus of disclosed message flow
To realize by another way.For example, the embodiment of device described above is only schematical, for example, the module
Or the division of unit, only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple lists
Member or component can combine or be desirably integrated into another system, or some features can be ignored, or not perform.It is another,
Shown or discussed coupling or direct-coupling or communication connection each other can be by some interfaces, device or unit
INDIRECT COUPLING or communication connection, can be electrical, machinery or other forms.
The unit illustrated as separating component can be or may not be it is physically separate, it is aobvious as unit
The part shown can be or may not be physical location, you can with positioned at a place, or can also be distributed to multiple
On NE.Some or all of unit therein can be selected to realize the mesh of this embodiment scheme according to the actual needs
's.
In addition, each functional unit in each embodiment of the invention can be integrated in a processing unit, can also
That unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated list
Member can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.
If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or used
When, it can be stored in a computer read/write memory medium.Understood based on such, technical scheme is substantially
The part contributed in other words to prior art or all or part of the technical scheme can be in the form of software products
Embody, the computer software product is stored in a storage medium, including some instructions are to cause a computer
Equipment (can be personal computer, server, or network equipment etc.) or processor (processor) perform the present invention each
The all or part of step of embodiment methods described.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage
(ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD
Etc. it is various can be with the medium of store program codes.
The foregoing is only a specific embodiment of the invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, should all be contained
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (12)
1. a kind of routing device, it is characterised in that including：
Network interface, for receiving message；
From core, the thread created from core be used to circulate read by with the report received from the corresponding network interface of core
Text, and the message number that success is read every time is recorded, in the case where having read to be masked as the first mark, according to successfully reading every time
Message number update statistical variable, the statistical variable is used for the number for reflecting that message is cumulative；Forwarding is additionally operable to by the net
The message of network interface；
The thread created on main core, the main core is used for when reaching in each sampling period, and the mark of having read is set into second
Mark, and the statistical variable is read, the mark of having read is set to first mark after running through, read according to described
Statistical variable export the reception condition of message in the sampling period.
2. routing device according to claim 1, it is characterised in that
The network interface is additionally operable to the message carry by reception on BD rings；
The thread created from core specifically for：
Message is read in circulation from the BD rings, and records the message number that success is read every time, is reading to be masked as the first mark
In the case of knowledge, the message number read according to each success updates statistical variable, and the statistical variable is used to reflect that message tires out
Plus number；Forward the message received by the network interface.
3. routing device according to claim 1, it is characterised in that
Being created on the main core has first thread and the second thread；
The first thread is used for when reaching in each sampling period, the mark of having read is set into the second mark, and read institute
Statistical variable is stated, the mark of having read is set to first mark after running through；
Second thread is used for the reception condition that the statistical variable that reads according to exports message in the sampling period；
The first thread and second cross-thread are synchronous by mutex amount.
4. routing device according to claim 1, it is characterised in that the thread created from core according to every time into
When the message number that work(is read updates statistical variable, specifically for：
The message number interval residing for message number read according to each success, by counting messages structure with the message number interval
Corresponding statistical variable increases preset constant；The counting messages structure becomes comprising statistics corresponding with each message number interval
Amount.
5. routing device according to claim 4, it is characterised in that the counting messages structure is array, and the number
The statistical variable of each in the group message number interval being corresponding in turn to that put in order according to it is continuous.
6. routing device according to claim 1, it is characterised in that the thread created on the main core is additionally operable to：By institute
State statistical variable clearing.
7. a kind of method of sampling of message flow, it is characterised in that methods described includes：
The message that is received by network interface is read in circulation, and records the message number that success is read every time, is reading to be masked as the
In the case of one mark, the message number read according to each success updates statistical variable, and the statistical variable, which is used to reflect, to be reported
The cumulative number of text；
When reaching in each sampling period, the mark of having read is set to the second mark, and reads the statistical variable, is being run through
The mark of having read is set to first mark afterwards, message in the sampling period is exported according to the statistical variable read
Reception condition.
8. method according to claim 7, it is characterised in that the successful message number read updates system to the basis every time
Meter variable includes：
The message number interval residing for message number read according to each success, by counting messages structure with the message number interval
Corresponding statistical variable increases preset constant；The counting messages structure becomes comprising statistics corresponding with each message number interval
Amount.
9. method according to claim 8, it is characterised in that the counting messages structure is in array, and the array
Each statistical variable message number interval being corresponding in turn to that put in order according to it is continuous.
10. method according to claim 7, it is characterised in that the statistical variable output read described in the basis should
The reception condition of message includes in sampling period：
The reception condition of message in the sampling period is exported into caching according to the statistical variable read.
11. method according to claim 7, it is characterised in that after the step of reading the statistical variable, by institute
State before having read the step of mark is set to first mark, methods described also includes：The statistical variable is reset.
12. a kind of sampling apparatus of message flow, it is characterised in that described device includes：
Read module, reads the message received by network interface, and record the message number that success is read every time for circulating；
Update module, in the case where having read to be masked as the first mark, being updated according to the message number that each success is read
Statistical variable, the statistical variable is used for the number for reflecting that message is cumulative；
Processing module, for when reaching in each sampling period, the mark of having read being set into the second mark, and read the system
Variable is counted, the mark of having read is set to first mark after running through；
Output module, the statistical variable for being read according to exports the reception condition of message in the sampling period.
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