CN104536722A - Service process procedure based stack space optimization method and system - Google Patents
Service process procedure based stack space optimization method and system Download PDFInfo
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- CN104536722A CN104536722A CN201410817044.3A CN201410817044A CN104536722A CN 104536722 A CN104536722 A CN 104536722A CN 201410817044 A CN201410817044 A CN 201410817044A CN 104536722 A CN104536722 A CN 104536722A
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Abstract
The invention provides a service process procedure based stack space optimization method and system. The service process procedure based stack space optimization method comprises the steps of reserving a preset byte space in a packet descriptor space of service data packet to serve as a self-defined parameter area, storing parameters required to be transferred when functions are mutually invoked in the self-defined parameter area and extracting the parameters required to be invoked from the self-defined parameter area. Parameter transfer is performed in the self-defined parameter area in the existing data storage space through extension packet descriptors, the problem that the stack space is repeated occupied due to the fact that the functions are constantly invoked is solved, meanwhile data storage and copying time is shortened in the service process procedure of needing to carrying the parameters to a lower-level module, and service process performance is improved.
Description
Technical field
The present invention relates to mobile communication technology field, particularly relate to a kind of stack space optimization method based on business processing flow and system.
Background technology
In the Service Processing Unit of block core evolution EPC (Evolved Packet Core) network element, service processing function is deployed on xlr732CPU (based on RMI kernel, support the network processing unit of 32 thread architecture), application RMI operating system carries out business transmission process.In embedded development, stack overflow is the problem often run into, the use of recursive function, function calling relationship, the information such as function parameter determine the situation consuming stack information, and stack overflow (stackoverflow) is relevant with the degree of depth called, also realize relevant with function, the stack of function consumption itself is more, and the depth capacity called is less, if function calling relationship is complicated, parameter is more, very likely causes stack overflow.
Dispose from hardware, xlr732CPU comprises 8 cores, 32 VCPU, each VCPU is equivalent to a thread in operating system, need distribute independently stack space, privately owned heap space, one of them core run (SuSE) Linux OS, be responsible for communicate with RMI, data configuration; Other 7 cores run RMI operating system, are responsible for the communication between Linux, data transmission.Wherein run the core of (SuSE) Linux OS, lower to its performance requirement, deploy unified software platform, can monitoring process running status, stack state; And dispose the core of RMI operating system, primary responsibility business data transmission, require high-performance, low delay, software platform monitoring stack state can not be unified in RMI operating system deploy again, can only be designed by function, code structure ensures that stack space does not overflow.From software configuration, Service Processing Unit operates in RMI operating system, the stack space distributed is fixing, utilize traditional parameter call transfer mode, for some complicated business processing capacity (such as: based on carrying business datum shaping feature) below 2 problems cause a large amount of uses of stack space: (1) function calling relationship is many, function realizes complicated, causes stack space to waste; (2) and need to transmit multiple parameter in module afterwards, stack space is caused to waste in a large number; Based on above 2 situations, in this type of business processing flow, slightly do parameter modification, namely likely cause stack overflow, result is hardly imaginable.
Current EPC Service Processing Unit adopts hierarchical structure for the process of data, comprises the process of ether layer, the process of IP layer, transport layer process etc.In business processing flow, often need to carry parameter to multiple process function.EPC Service Processing Unit is for the process of data, and the multilayer generally all through procotol is resolved, effect, and operation flow is comparatively complicated, to the use of stack in this process, more needs to be controlled, avoids the spilling of stack.As shown in Figure 1, in the business processing flow shown in Fig. 1, based in carrying level service quality (QoS) processing procedure, business data processing flow process identifies in GPRS Tunnel Protocol GTP-U (the EvolvedGeneral Packet Radio Service Tunnelling Protocol for User Plane) treatment scheme of the user level of evolving, and treatment scheme is then in final transmission process ends.In function process after the realization of this function needs parameter A to be carried to, use after repeatedly transmitting.Herein as function parameter pop down repeatedly, cause taking of a large amount of stack space.
Current operation processing unit is deployed on xlr732 chip, xlr732 chip section is deployed on service processing board, each veneer deploy 2 business processing chips, a master control control chip, adds 4G internal memory, and overall architecture as shown in Figure 2, this deployment scheme makes xlr732 only have 1G internal memory to use, in order to ensure number of users, this 1G internal memory also will mark off 512M to shared drive, is used for carrying out data storage; Due to the core of 7 in RMI operating system, 28 VCPU, independent allocation stack internal memory, privately owned heap memory, add distribution one piece of shared heap memory, Memory Allocation meal with wine poured and sees elbow, can not open up bulk stack space again.
Summary of the invention
(1) technical matters that will solve
The invention provides a kind of stack space optimization method based on business processing flow and system, for solving because function constantly calls the stack space occupation problem repeatedly of generation in business processing, the size in control stack space, prevents stack overflow, improves service process performance.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of stack space optimization method based on business processing flow, the method comprises:
In the bag descriptor space of business data packet, reserved byte space of presetting is as custom parameter district;
Described custom parameter district is stored in by needing the parameter transmitted when mutually calling between function;
The parameter needing to call is extracted from described custom parameter district.
Preferably, described parameter comprises adjacent level Transfer Parameters and multistage Transfer Parameters.
Preferably, when adjacent function calls, described method also comprises: the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.
Preferably, when multi-step function calls, described method also comprises: the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.
Preferably, after the function complete call corresponding with described multistage Transfer Parameters, discharge described custom parameter district.
Preferably, described method also comprises:
The store status in the described custom parameter district of real-time monitoring.
Accordingly, present invention also offers a kind of stack space optimization system based on business processing flow, described system comprises:
Custom parameter district generation module, for byte space of presetting reserved in the bag descriptor space of business data packet as custom parameter district;
Memory module, for needing the parameter transmitted to be stored in described custom parameter district when mutually calling between function;
Extraction module, for extracting the parameter needing to call from described custom parameter district.
Preferably, described parameter comprises adjacent level Transfer Parameters and multistage Transfer Parameters.
Preferably, described system also comprises:
First release module, when calling for adjacent function, the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.
Preferably, described system also comprises:
Transport module, when calling for multi-step function, the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.
Preferably, described system also comprises:
Second release module, after the function complete call corresponding with described multistage Transfer Parameters, discharges described custom parameter district.
Preferably, described system also comprises:
Monitoring module, for monitoring the store status in described custom parameter district in real time.
(3) beneficial effect
The present invention carries out Parameter transfer by custom parameter district in existing data space in business processing flow, by the stack space optimization used in function call process, by the parameter transmitted between existing space size storage function, solve because function constantly calls the stack space occupation problem repeatedly of generation, needing to carry parameter to the business processing flow in subordinate's module simultaneously, decrease the time that data store, copy, improve service process performance.
Accompanying drawing explanation
Can understanding the features and advantages of the present invention clearly by reference to accompanying drawing, accompanying drawing is schematic and should not be construed as and carry out any restriction to the present invention, in the accompanying drawings:
Fig. 1 uses stack space to carry out the method flow diagram of function parameter transmission in business processing flow in prior art;
Fig. 2 is the overall architecture schematic diagram of transaction processing system in prior art;
A kind of stack space optimization method process flow diagram based on business processing flow that Fig. 3 provides for the embodiment of the present invention;
Fig. 4 is the treatment scheme schematic diagram of the bag descriptor of the business data packet proposed in the embodiment of the present invention;
Fig. 5 is the change schematic diagram of the use stack space proposed in embodiment of the present invention stack space when carrying out Parameter transfer between adjacent function;
Fig. 6 is the change schematic diagram that the use custom parameter district proposed in the embodiment of the present invention carries out stack space when adjacent function parameter transmits between adjacent function;
Fig. 7 is that the custom parameter district that uses in business processing flow proposed in the embodiment of the present invention carries out the method flow diagram of multi-step function Parameter transfer;
The module diagram of a kind of stack space optimization system based on business processing flow that Fig. 8 provides for the embodiment of the present invention.
Embodiment
For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of stack space optimization method process flow diagram based on business processing flow that Fig. 3 provides for the embodiment of the present invention, as shown in Figure 3, the method comprises the following steps:
S101, in the bag descriptor space of business data packet reserved byte space of presetting as custom parameter district;
S102, will when mutually calling between function need transmit parameter be stored in described custom parameter district;
S103, the parameter called from described custom parameter district extraction needs, wherein, need the parameter called to comprise adjacent level Transfer Parameters and multistage Transfer Parameters.
The stack space optimization method based on business processing flow in the invention process, custom parameter district is obtained by byte space of presetting reserved in the bag descriptor space of business data packet, utilize this custom parameter district to carry out the Parameter transfer of function in business processing flow, by the parameter transmitted between existing space size storage function, instead of the stack space that function constantly calls generation and repeatedly take.
Fig. 4 is the treatment scheme schematic diagram of the bag descriptor of the business data packet proposed in the embodiment of the present invention, as shown in Figure 4, in RMI disposal system, network interface receives data, an available message descriptor is ejected from bag descriptor queue, and do relevant information filling, give message guides, then give distribution engine and be distributed to the process of alignment processing device.
In the processing procedure of bag descriptor, bag descriptor queue is by bottom storage allocation space, and carry out queue management operation, when each message arrives, this descriptor is filled, and does follow-up business process, in whole business procession, bag descriptor carries packet content and carries out business flow processing, and for EPC Service Processing Unit, overall data bag treatment scheme all will be carried bag descriptor and be passed in and out each Service Processing Module.Technical solution of the present invention extended description accords with space, and reserved byte space of presetting as custom parameter district, and provides unified interface to carry out assignment, value operation, and preferably, described reserved default byte space can be 48 byte spaces, and the present invention does not limit this.
In the embodiment of the present invention, EPC Service Processing Unit, for 32 business processing CPU, distributes and shares heap, privately owned heap, stack space, packet space.Wherein packet space, it is business data packet buffer area, be that 1500 bytes are configured for MTU, in order to ensure buffer zone, each space is 2000 bytes, be used for storing packet, in spatial cache, self-defined storage organization can be utilized, mark off the custom parameter district of the fixing space size storing respective function Transfer Parameters, this parameter region is used for the Parameter transfer between function, instead of the stack space that function constantly calls generation and repeatedly takies.
Further, when adjacent function calls, described method also comprises: the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.Fig. 5 is the change schematic diagram of the use stack space proposed in embodiment of the present invention stack space when carrying out Parameter transfer between adjacent function, as shown in Figure 5, if do not use the custom parameter district of bag descriptor to carry out Parameter transfer, then each function call, Transfer Parameters takies stack space, repeatedly taking of stack space causes stack space constantly to reduce, and even occurs overflowing.Fig. 6 is the change schematic diagram that the use custom parameter district proposed in the embodiment of the present invention carries out stack space when adjacent function parameter transmits between adjacent function; as shown in Figure 6; adjacent function parameter transmission uses the custom parameter district of bag descriptor; do not re-use at the stack space of adjacent function call; each function call is complete, can discharge deserved parameter region, reuses for subordinate's function; along with function constantly calls, stack space obtains protection.
Further, when multi-step function calls, described method also comprises: the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.Wherein, after the function complete call corresponding with described multistage Transfer Parameters, discharge described custom parameter district.Fig. 7 is that the custom parameter district that uses in business processing flow proposed in the embodiment of the present invention carries out the method flow diagram of multi-step function Parameter transfer, as shown in Figure 7, the multistage Transfer Parameters of function uses custom parameter district, multistage Transfer Parameters A is deleted from the function call parameter of stack space, and be added on the custom parameter district of corresponding bag descriptor, process along with business datum arrives corresponding function processing module, until after the function complete call corresponding with described multistage Transfer Parameters A, discharge described custom parameter district, reuse for subordinate's function, along with function constantly calls, stack space obtains protection.The stack space optimization method based on business processing flow that the embodiment of the present invention proposes, is needing to carry parameter in the business procession of subordinate and multi-step function, decreases that data store, the time of copy, improves service process performance.
In embodiments of the present invention, the described stack space optimization method based on business processing flow also comprises: the store status in the described custom parameter district of monitoring in real time, according to the storage mode of the in good time Tuning function Transfer Parameters of the store status in described custom parameter district, when the store status in custom parameter district is by time saturated, be adjusted to and use stack space to carry out function parameter transmission, ensure business data transmission performance.
The module diagram of a kind of stack space optimization system based on business processing flow that Fig. 8 provides for the embodiment of the present invention, as shown in Figure 8, described system comprises:
Custom parameter district generation module 201, for byte space of presetting reserved in the bag descriptor space of business data packet as custom parameter district;
Memory module 202, for needing the parameter transmitted to be stored in described custom parameter district when mutually calling between function;
Extraction module 203, for extracting the parameter needing to call from described custom parameter district, wherein, described parameter comprises adjacent level Transfer Parameters and multistage Transfer Parameters.
The stack space optimization system based on business processing flow that the embodiment of the present invention proposes also comprises:
First release module, when calling for adjacent function, the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.
The stack space optimization system based on business processing flow that the embodiment of the present invention proposes also comprises:
Transport module, when calling for multi-step function, the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.
Second release module, after the function complete call corresponding with described multistage Transfer Parameters, discharges described custom parameter district.
The stack space optimization system based on business processing flow that the embodiment of the present invention proposes also comprises:
Monitoring module, for monitoring the store status in described custom parameter district in real time.According to the storage mode of the in good time Tuning function Transfer Parameters of the store status in described custom parameter district, when the store status in custom parameter district is by time saturated, be adjusted to and use stack space to carry out function parameter transmission, ensure business data transmission performance.
The embodiment of the present invention carries out Parameter transfer by custom parameter district in existing data space in business processing flow, by the stack space optimization used in function call process, by the parameter transmitted between existing space size storage function, solve because function constantly calls the stack space occupation problem repeatedly of generation, needing to carry parameter to the business processing flow in subordinate's module simultaneously, decrease the time that data store, copy, improve service process performance.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform method described in each embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is the schematic diagram of a preferred embodiment, the module in accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that each functional unit in each embodiment of the present invention can be integrated in a processing module, also can be that the independent physics of unit exists, also can be integrated in a module by two or more unit.
Be only several specific embodiment of the present invention above, but the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into protection scope of the present invention.
Claims (12)
1. based on a stack space optimization method for business processing flow, it is characterized in that, described method comprises:
In the bag descriptor space of business data packet, reserved byte space of presetting is as custom parameter district;
Described custom parameter district is stored in by needing the parameter transmitted when mutually calling between function;
The parameter needing to call is extracted from described custom parameter district.
2. method according to claim 1, is characterized in that, described parameter comprises adjacent level Transfer Parameters and multistage Transfer Parameters.
3. method according to claim 2, is characterized in that, when adjacent function calls, described method also comprises: the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.
4. method according to claim 2, it is characterized in that, when multi-step function calls, described method also comprises: the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.
5. method according to claim 4, is characterized in that, after the function complete call corresponding with described multistage Transfer Parameters, discharges described custom parameter district.
6. the method according to any one of claim 1-5, is characterized in that, described method also comprises:
The store status in the described custom parameter district of real-time monitoring.
7. based on a stack space optimization system for business processing flow, it is characterized in that, described system comprises:
Custom parameter district generation module, for byte space of presetting reserved in the bag descriptor space of business data packet as custom parameter district;
Memory module, for needing the parameter transmitted to be stored in described custom parameter district when mutually calling between function;
Extraction module, for extracting the parameter needing to call from described custom parameter district.
8. system according to claim 7, is characterized in that, described parameter comprises adjacent level Transfer Parameters and multistage Transfer Parameters.
9. system according to claim 8, is characterized in that, described system also comprises:
First release module, when calling for adjacent function, the adjacent level Transfer Parameters being added on described custom parameter district, after adjacent function complete call, discharges described custom parameter district.
10. system according to claim 8, is characterized in that, described system also comprises:
Transport module, when calling for multi-step function, the multistage Transfer Parameters being added on described custom parameter district is transferred to the function treatment scheme corresponding with described multistage Transfer Parameters by current service data bag and calls.
11. systems according to claim 10, is characterized in that, described system also comprises:
Second release module, after the function complete call corresponding with described multistage Transfer Parameters, discharges described custom parameter district.
12. systems according to any one of claim 7-11, it is characterized in that, described system also comprises:
Monitoring module, for monitoring the store status in described custom parameter district in real time.
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| CN112882695A (en) * | 2021-03-02 | 2021-06-01 | 百果园技术(新加坡)有限公司 | Parameter transmission method and device, computer equipment and storage medium |
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