CN107529695A - The localization method and device that a kind of buffering area slowly leaks - Google Patents

The localization method and device that a kind of buffering area slowly leaks Download PDF

Info

Publication number
CN107529695A
CN107529695A CN201610443831.5A CN201610443831A CN107529695A CN 107529695 A CN107529695 A CN 107529695A CN 201610443831 A CN201610443831 A CN 201610443831A CN 107529695 A CN107529695 A CN 107529695A
Authority
CN
China
Prior art keywords
buffer
allocated
time
leakage
duration
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610443831.5A
Other languages
Chinese (zh)
Inventor
杨大川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maipu Communication Technology Co Ltd
Original Assignee
Maipu Communication Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Maipu Communication Technology Co Ltd filed Critical Maipu Communication Technology Co Ltd
Priority to CN201610443831.5A priority Critical patent/CN107529695A/en
Publication of CN107529695A publication Critical patent/CN107529695A/en
Pending legal-status Critical Current

Links

Abstract

The invention discloses the localization method that a kind of buffering area slowly leaks, methods described includes:Obtain system time when buffering area Buffer is allocated, and will be described allocated when system time preserve into corresponding Buffer structures;A Detection task is created, periodically traversal detection is carried out to each Buffer that distributed;The duration that each Buffer is allocated out is obtained, if the duration that the Buffer is allocated out is more than the time-out time of setting, the Buffer is calculated as leaking Buffer and preserved.Present invention also offers the positioner that a kind of buffering area slowly leaks, beneficial effects of the present invention are:The duration being allocated out by a kind of automatic monitoring Buffer, judge current Buffer with the presence or absence of slowly leakage, effectively oriented in a short time in the presence of the Buffer slowly leaked, lifting means complete machine stability and reliability with tester so as to help to develop.

Description

The localization method and device that a kind of buffering area slowly leaks
Technical field
The invention belongs to data communication field, and in particular to a kind of localization method that buffering area (Buffer) slowly leaks and Device.
Background technology
With the rapid development of data communication field, the complexity of various datacom devices also greatly increases, data forwarding stream The software processing flow of Cheng Zuowei device cores, on the basis of numerous functional protocols are integrated with, it is difficult to avoid the occurrence of data Buffering area Buffer leakages, memory overflow, fly the knotty problem such as pointer.
In the prior art, the network equipment is after external equipment receives data, from Buffer ponds (Buffer Pool) Apply Buffer, and by direct memory access (Direct Memory Access, DMA) mode by data storage to be allocated In the corresponding Buffer gone out so that upper application module can carry out data processing by Buffer, and the storing process is without in The participation of central processor (Central Processing Unit, CPU), data processing or data are completed in upper application module After forwarding, Buffer is discharged back into Buffer ponds.
Slowly leakage does not have generally acknowledged definition to explain to so-called Buffer, and Buffer in the present invention is slowly leaked Refer to that Buffer is not put back into Buffer ponds after being applied out.The problem of being leaked for Buffer, in the prior art may be used To be realized by state current some debug command real time inspections Buffer.Such as:Developer can be ordered by keying in Check the state in current Buffer ponds, including total Buffer numbers, be applied Buffer numbers and remaining available Buffer numbers etc.. Searched in order to facilitate positioning problems, can also be directed to and be applied Buffer progress next step information follow-ups, including current Buffer Hold the stage and the operations such as Buffer contents are shown.But above-mentioned debugging error detection mode can not effectively find that Buffer is deposited In situation about slowly leaking.Buffer slow leakage mainly has following characteristics:
1st, Buffer leaks cycle length, and the main frame continuous service extremely long time could find (far beyond the test strike-machine time) In the presence of obvious Buffer leakage situations;
2nd, by some special trigger flows, such as the abort branch of board hot plug operations or certain agreement.This If the special flow of class, which does not trigger, to be leaked, even if triggering, Buffer leakages quantity each time is very small, passes through Debug command is not easy to discover;
Why so original debug command can not effectively find the problem of Buffer is slowly leaked, reason bag Include:
1st, the data forwarding flow currently carried due to equipment is huge, it is necessary to the message number of caching is also more, so Buffer demands number is also very more, and the basic order of magnitude is all in the even upper 100K of several 10K, so in test process, by compared with Prolonged test or strike-machine checking, may only occur tens Buffer leakage, this is often treated as normally Buffer is ignored using expense;
2nd, in test process, what tester often focused more on is whether the function of equipment in itself is normal, so working as When there is the problem of Buffer is slowly leaked, because the correlation function of equipment is not immediately exposed to influence, tester is just not easy Discover;
3rd, tester can not possibly ceaselessly check current Buffer in normal test process by debug command Pond state, and every next state is recorded and contrasted, so as to draw the problem of whether there is Buffer leakages, such operation Testing efficiency can be brought and have a strong impact on do not possess operability.
To sum up, slowly leakage is the problem of one kind can not be avoided definitely to Buffer, is not easy to discover in a short time and pair will not set Standby complete machine business produce it is obvious influence, but once occur may result in that business is unstable until last deteriorate is shut down for complete machine Serious consequence, so effectively avoiding problems significant to the stability of whole equipment.Meanwhile existing Buffer is adjusted Examination order is wanted efficiently or in real time to find that the slow leakage problems of Buffer are relatively difficult, so such problem is often by band To market, operation can be just found for a long time under real net environment, and it is serious Buffer consumptions etc. now occurred Consequence, cause equipment can not normal work.
The content of the invention
The present invention provides the localization method and device that a kind of buffering area slowly leaks, can not to solve existing debug command Efficiently or in real time find the slow leakage problems of Buffer.
The embodiments of the invention provide the localization method that a kind of buffering area slowly leaks, methods described includes:
Obtain system time when buffering area Buffer is allocated, and will be described allocated when system time preserve to right In the Buffer structures answered;
A Detection task is created, periodically traversal detection is carried out to each Buffer that distributed, obtained in detection every The duration that individual Buffer is allocated out, if the duration that the Buffer is allocated out is more than the time-out of setting Between, then the Buffer is calculated as leaking Buffer and preserved.
Further, the duration that each Buffer is obtained in traversal and is allocated out, specifically include:Obtain System time during detection, the system when Buffer preserved in system time when detecting and the Buffer structures is allocated It is poor that time is made, and obtains the duration that the Buffer is allocated out.
Further, methods described also includes:Debug command is added, checks leakage Buffer number and/or leakage Buffer details.
Further, the details of the leakage Buffer include:Leak Buffer current forwarding stages, leakage During system when the duration and leakage Buffer that Buffer memory address, leakage Buffer are allocated out are allocated Between.
Further, methods described also includes:Set miscue to switch, when detecting Buffer leakages, beat automatically Print prompting.
On the other hand, the embodiment of the present invention provides the positioner that a kind of buffering area slowly leaks, and described device includes:
Time acquisition unit, for obtain buffering area Buffer be allocated when system time, and will be described allocated when System time preserve into corresponding Buffer structures;
Threshold sets unit, for setting a time-out time;
Detection task unit, for creating a Detection task, periodically traversal inspection is carried out to each Buffer that distributed Survey;The duration that Buffer is allocated out is obtained, if the duration that Buffer is allocated out is more than the time-out of setting Time, then the Buffer is calculated as leaking Buffer and preserved.
Further, the time acquisition unit is specifically used for, and when detection has each distributed Buffer, obtains when detecting System time, it is poor that the system time when Buffer preserved in system time when detecting and Buffer structures is allocated is made, Obtain the duration that Buffer is allocated out.
Further, described device also includes:
Information display unit, for adding debug command, check leakage Buffer number and/or leak the detailed of Buffer Thin information.
Further, the details of the leakage Buffer include:The details of the leakage Buffer include:Let out The duration that leakage Buffer current forwarding stages, the memory address for leaking Buffer, leakage Buffer are allocated out with And leakage Buffer be allocated when system time.
Further, described information display unit, be additionally operable to set miscue switch, when detect Buffer leak When, automatic printing prompting.
Beneficial effects of the present invention are:The duration being allocated out by a kind of automatic monitoring Buffer, judge to work as Preceding Buffer is slowly let out with the presence or absence of slowly leakage so as to help to develop effectively to orient to exist in a short time with tester The Buffer of leakage, lifting means complete machine stability and reliability.
Brief description of the drawings
Fig. 1 is methods described flow chart of the embodiment of the present invention;
Fig. 2 is described device schematic diagram of the embodiment of the present invention;
Fig. 3 is data flow access device schematic diagram described in the embodiment of the present invention;
Fig. 4 is the schematic diagram that methods described of the embodiment of the present invention is implemented in equipment.
Embodiment
For technical scheme is more clearly understood, the present invention is described in further details in conjunction with accompanying drawing:
Embodiment 1
As shown in figure 1, the embodiments of the invention provide the localization method that a kind of buffering area slowly leaks, methods described bag Include:
Step 101, obtain system time when buffering area Buffer is allocated, and will be described allocated when system time Preserve into corresponding Buffer structures;
One step 102, setting time-out time;Here time-out time according to the traffic performance of current hosts determine, Empirical value can be drawn by experiment in practical application, typically can be 10-20 minutes.
Step 103, a Detection task is created, periodically traversal detection is carried out to each Buffer that distributed;Detecting When obtain the duration that each Buffer is allocated out, if duration for being allocated out of the Buffer is more than setting Time-out time, then the Buffer is calculated as leaking and Buffer and preserved.If the duration that Buffer is allocated out is small In the time-out time of setting, then any processing is not made.
Obtaining the duration that each Buffer is allocated out in detection specifically includes:When obtaining system when detecting Between, it is poor that the system time when Buffer preserved in system time when detecting and the Buffer structures is allocated is made, and obtains The duration that the Buffer is allocated out.
Methods described also includes:Debug command is added, leakage Buffer number is checked and/or leaks the detailed of Buffer Information.The details of the leakage Buffer include:With leaking the current internal memories for forwarding the stage, leaking Buffer of Buffer The system time when duration and leakage Buffer that location, leakage Buffer are allocated out are allocated.
Methods described also includes setting miscue to switch, when detecting Buffer leakages, automatic printing prompting.
Embodiment 2
As shown in Fig. 2 the embodiments of the invention provide the positioner that a kind of buffering area slowly leaks, described device bag Include:
Time acquisition unit 201, it is allocated for obtaining system time when buffering area Buffer is allocated, and by described When system time preserve into corresponding Buffer structures;
Threshold sets unit 202, for setting a time-out time;
Detection task unit 203, for creating a Detection task, periodicity traversal is carried out to each Buffer that distributed Detection;The duration that Buffer is allocated out is obtained, if the duration that Buffer is allocated out is more than the super of setting When the time, then the Buffer is calculated as leaking and Buffer and preserved.
The time acquisition unit 201 is specifically used for, when detection has each distributed Buffer, when obtaining system when detecting Between, it is poor that the system time when Buffer preserved in system time when detecting and Buffer structures is allocated is made, and obtains The duration that Buffer is allocated out.
Described device also includes information display unit 204, for adding debug command, checks leakage Buffer number And/or leakage Buffer details.The details of the leakage Buffer include:Leak the current forwarding ranks of Buffer When the duration and leakage Buffer that section, leakage Buffer memory address, leakage Buffer are allocated out are allocated System time.Described information display unit 204, it is additionally operable to set miscue to switch, when detecting Buffer leakages, from Dynamic print prompt.
Embodiment 3
The embodiment of the present invention is progressive that the present invention is carried out exemplified by method of the present invention to be implemented on network devices Illustrate:
A simple illustration is carried out to the standard forwarding model of the network equipment first, as shown in figure 3, data flow is by setting Standby one of inbound port enters the network equipment, then by routing table look-up, finds last purpose exit port, and from correspondingly Purpose exit port send, complete once complete forwarding process.In the process, the complete of the network equipment can be turned Hair path is divided into the following forwarding stage:
DRV_INPUT driving inputs
LINK_INPUT links input
FORWARD_INPUT forwarding inputs
FORWARD_ROUTER forwarding routes
FORWARD_OUTPUT forwarding outputs
LINK_OUTPUT links export
DRV_OUTPUT driving outputs
Current Buffer distribution state include having distributed with it is unallocated.
Based on the design of above-mentioned basic software, a data message is completed once in the network device here complete Forwarding process is described in detail, as shown in figure 4, message, when forwarding beginning, driving can be available from the application of Buffer ponds in advance Buffer be used to receive data flow, and Buffer distribution state is set to have distributed;After message enters device Host, number Preserved according to being copied to by DMA (Direct Memory Access, direct memory access) in Buffer, software can be set currently The Buffer forwarding stage is DRV_INPUT and completes subsequent treatment, then delivers data link layer and carries out packet parsing and its He is handled.The now corresponding current Buffer forwarding stage can be changed into LINK_INPUT states from DRV_INPUT.According to route Table look-up and find purpose exit port, message is forwarded from purpose exit port.In whole forwarding process, with Message processing rank The change of section, corresponding current Buffer forwarding stage can also occur to change accordingly, until message is sent to thing from driving Circuit is managed, Buffer is recovered to Buffer ponds, and the distribution state for being correspondingly arranged the Buffer is unallocated.
Based on above-mentioned forwarding process, it is desirable to which realization is effectively monitored to the slow leakage problems of Buffer, specific real Existing step is as follows:
Increase time member in Buffer structures, for recording system time when Buffer is allocated.When this When Buffer is allocated, takes present system time and preserve into the time member fields of Buffer structures.Time member fields Type must be 64, to ensure that variable bit wide is as big as possible, avoid occurring in a practical situation the situation of variate-value upset.
A Detection task, for being periodically detected to allocated Buffer, detection cycle are created in systems It can determine according to the actual requirements, the cycle, more big then overhead was smaller, but it is poor to detect real-time;Cycle, smaller then effect was anti- It.When each Detection task is initiated, current system time is first obtained, whole all of Buffer ponds is then begun stepping through and has divided The Buffer matched somebody with somebody, to each allocated Buffer, then being divided of being preserved in Buffer structures is subtracted with current system time The system time of timing, obtain the duration that Buffer is allocated out.
One Buffer of setting is allocated out the time-out time of duration, and this value is according to the spy of device forwards system Depending on property, such as 600S, that is, it is interpreted as in current network equipment system, the duration that a Buffer is allocated out surpasses Spend 10 minutes all not to be released, then it is assumed that this Buffer is possible to have leaked.
Compared with the duration being allocated out for having distributed Buffer and the time-out time of setting, if continued Between be more than the time-out time of setting, then it is assumed that the Buffer has been leaked, and the Buffer is calculated as leaking Buffer and preserved, right Leakage Buffer statistical be:Counted according to the leakage Buffer current forwarding stages, i.e. each forwarding rank of statistics The existing leakage Buffer of section number, so when being checked by debug command to the information for leaking Buffer, not only It can be seen that leakage Buffer total number, can also get information about very much the individual of each forwarding stage leakage Buffer Number.Further, leakage Buffer queues are created according to the leakage Buffer current forwarding stages:Same forwarding rank will be in The leakage Buffer of section joins the team successively, so when checking leakage Buffer details by debug command, it is possible to specify Check some forwarding stage existing leakage Buffer situation.
More optimize, when Detection task is initiated each time, the leakage Buffer in all forwarding stages queue is traveled through, by Buffer through being discharged back into beyond time-out time but again Buffer ponds goes out team, and letting out in the corresponding forwarding stage from the queue Leak and carry out subtracting 1 operation in Buffer statistical magnitude.
In embodiments of the present invention, tester can leak Buffer number and every by debug command real time inspection Individual leakage Buffer details, the details of the leakage Buffer include:Leak Buffer current forwarding stages, System time and leakage Buffer when leakage Buffer memory address, leakage Buffer are allocated be allocated out it is lasting when Between etc..Tester can be obtained no leakage Buffer by debug command and be particularly shown information, described to be particularly shown letter The content and form of breath do not limit here, and tester can selectively check leakage Buffer's according to the demand of oneself Total number, or each more detailed leakage Buffer current forwarding stage, leakage Buffer memory address, leakage Duration that system time and leakage Buffer when Buffer is allocated are allocated out etc..
Leakage Buffer's is detailed existing for Buffer number of each forwarding stage existing leakage, some forwarding stage Thin information etc..
More excellent, if it is considered that the real-time to report an error, can leak out the current letter that will leak out Buffer in Buffer Automatic printing prompting is ceased, the content for being particularly shown information of automatic printing prompting can voluntarily be set according to the demand of tester It is fixed.Print prompt leakage Buffer number can be selected, or includes the current forwarding ranks of leakage Buffer in further detail The information such as section, this mode are applied to require higher scene to the stability of a system, and concrete implementation mode is very simple, here No longer it is described in detail.
It can realize what fast and effective positioning slowly leaked with the presence or absence of Buffer on network devices by above method Problem, and this method pertains only to the reading to Buffer states, application and release operation increase that will not be to Buffer be any Expense, any influence will not be also brought to forwarding performance.
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 (10)

1. the localization method that a kind of buffering area slowly leaks, it is characterised in that methods described includes:
Obtain system time when buffering area Buffer is allocated, and will be described allocated when system time preserve to corresponding In Buffer structures;
A Detection task is created, periodically traversal detection is carried out to each Buffer that distributed, obtained in detection each The duration that Buffer is allocated out, if the duration that the Buffer is allocated out is more than the time-out of setting Between, then the Buffer is calculated as leaking Buffer and preserved.
2. according to the method for claim 1, it is characterised in that described to obtain each Buffer in detection and be allocated out Duration, specifically include:System time during detection is obtained, will be protected in system time when detecting and the Buffer structures It is poor that system time when the Buffer deposited is allocated is made, and obtains the duration that the Buffer is allocated out.
3. according to the method for claim 1, it is characterised in that methods described also includes:Debug command is added, checks leakage Buffer number and/or the details for leaking Buffer.
4. according to the method for claim 3, it is characterised in that the details of the leakage Buffer include:Leakage Current Buffer forwarding stage, leak duration and leakage that Buffer memory address, Buffer are allocated out System time when Buffer is allocated.
5. according to the method for claim 3, it is characterised in that methods described also includes:Set miscue to switch, work as inspection When measuring Buffer leakages, automatic printing prompting.
6. the positioner that a kind of buffering area slowly leaks, it is characterised in that described device includes:
Time acquisition unit, for obtain buffering area Buffer be allocated when system time, and will be described allocated when be The system time is preserved into corresponding Buffer structures;
Threshold sets unit, for setting a time-out time;
Detection task unit, for creating a Detection task, periodically traversal detection is carried out to each Buffer that distributed;Obtain The duration that Buffer is allocated out is taken, if the duration that Buffer is allocated out is more than the time-out time of setting, Then the Buffer is calculated as leaking Buffer and preserved.
7. device according to claim 6, it is characterised in that the time acquisition unit is specifically used for, and detection is each When distributing Buffer, system time during detection is obtained, by what is preserved in system time when detecting and Buffer structures It is poor that system time when Buffer is allocated is made, and obtains the duration that Buffer is allocated out.
8. device according to claim 6, it is characterised in that described device also includes:
Information display unit, for adding debug command, check leakage Buffer number and/or leak Buffer detailed letter Breath.
9. device according to claim 8, it is characterised in that the details of the leakage Buffer include:Leakage Duration that current Buffer forwarding stage, the memory address for leaking Buffer, leakage Buffer are allocated out and Leak system time when Buffer is allocated.
10. device according to claim 8, it is characterised in that described information display unit, be additionally operable to set miscue Switch, when detecting Buffer leakages, automatic printing prompting.
CN201610443831.5A 2016-06-20 2016-06-20 The localization method and device that a kind of buffering area slowly leaks Pending CN107529695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610443831.5A CN107529695A (en) 2016-06-20 2016-06-20 The localization method and device that a kind of buffering area slowly leaks

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610443831.5A CN107529695A (en) 2016-06-20 2016-06-20 The localization method and device that a kind of buffering area slowly leaks

Publications (1)

Publication Number Publication Date
CN107529695A true CN107529695A (en) 2018-01-02

Family

ID=60765434

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610443831.5A Pending CN107529695A (en) 2016-06-20 2016-06-20 The localization method and device that a kind of buffering area slowly leaks

Country Status (1)

Country Link
CN (1) CN107529695A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109062781A (en) * 2018-06-22 2018-12-21 北京星网锐捷网络技术有限公司 A kind of message buffer management method and device
CN113495832A (en) * 2020-04-05 2021-10-12 杭州迪普科技股份有限公司 Cache region leakage detection system and method thereof
CN113672416A (en) * 2021-07-27 2021-11-19 杭州迪普科技股份有限公司 Method and device for positioning reasons of memory resource leakage

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101923517A (en) * 2009-06-17 2010-12-22 中兴通讯股份有限公司 Buffer zone management method and system
CN101951339A (en) * 2010-08-24 2011-01-19 北京星网锐捷网络技术有限公司 Message speed limitation method, device and network equipment
WO2011085412A2 (en) * 2009-12-21 2011-07-14 Qualcomm Incorporated Dynamic adjustment of reordering release timer
CN104660585A (en) * 2014-12-30 2015-05-27 赖洪昌 Seamlessly connected kernel data packet acquisition technology
CN105677575A (en) * 2015-12-28 2016-06-15 华为技术有限公司 Memory resource management method and apparatus

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101923517A (en) * 2009-06-17 2010-12-22 中兴通讯股份有限公司 Buffer zone management method and system
WO2011085412A2 (en) * 2009-12-21 2011-07-14 Qualcomm Incorporated Dynamic adjustment of reordering release timer
CN101951339A (en) * 2010-08-24 2011-01-19 北京星网锐捷网络技术有限公司 Message speed limitation method, device and network equipment
CN104660585A (en) * 2014-12-30 2015-05-27 赖洪昌 Seamlessly connected kernel data packet acquisition technology
CN105677575A (en) * 2015-12-28 2016-06-15 华为技术有限公司 Memory resource management method and apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109062781A (en) * 2018-06-22 2018-12-21 北京星网锐捷网络技术有限公司 A kind of message buffer management method and device
CN113495832A (en) * 2020-04-05 2021-10-12 杭州迪普科技股份有限公司 Cache region leakage detection system and method thereof
CN113672416A (en) * 2021-07-27 2021-11-19 杭州迪普科技股份有限公司 Method and device for positioning reasons of memory resource leakage
CN113672416B (en) * 2021-07-27 2024-03-01 杭州迪普科技股份有限公司 Method and device for positioning cause of hard buffer leakage

Similar Documents

Publication Publication Date Title
CN105224454B (en) A kind of adjustment method, polycaryon processor and commissioning device
US9483383B2 (en) Injecting faults at select execution points of distributed applications
CN106155883B (en) A kind of virtual machine method for testing reliability and device
CN104778121B (en) The test method of games, apparatus and system
US9588834B1 (en) Methods and apparatus for improved fault analysis
CN1316372C (en) Single step processing
CN104615477B (en) Analyze FPGA method and system
CN104731566B (en) Integrated Development Environment test device, method and system
CN105912458A (en) Method and system for dynamically detecting C/C++ memory leak
CN107529695A (en) The localization method and device that a kind of buffering area slowly leaks
CN106878194A (en) A kind of message processing method and device
CN111858375B (en) Software testing method, device, electronic equipment and medium
CN110958157A (en) Network testing method, system, storage medium and electronic equipment
CN108255716A (en) A kind of software assessment method based on cloud computing technology
CN109101416A (en) A kind of kernel fault filling method and electronic equipment
CN114048520B (en) Detection system for cross-chip access control
CN106789652A (en) Service shunting method and device
WO2019178957A1 (en) Distributed system test method and device, computer device and storage medium
JP2011100388A (en) Trace information collection device, trace information processor and trace information collection method
CN103049374B (en) Automatic testing method and device
CN109558328A (en) A kind of test method of code coverage, system, device and readable storage medium storing program for executing
CN110210220A (en) A kind of information leakage detection method, device and storage medium
CN105528546B (en) Vulnerability mining method and device and electronic equipment
WO2017197982A1 (en) Packet processing method, device and system, and computer storage medium
CN101706752B (en) Method and device for in-situ software error positioning

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: 610041 15-24 floor, 1 1 Tianfu street, Chengdu high tech Zone, Sichuan

Applicant after: Maipu Communication Technologies Co., Ltd.

Address before: No. 16, nine Xing Avenue, Chengdu high tech Zone, Sichuan Province

Applicant before: Maipu Communication Technologies Co., Ltd.

CB02 Change of applicant information
RJ01 Rejection of invention patent application after publication

Application publication date: 20180102

RJ01 Rejection of invention patent application after publication