CN110018855A - One kind is based on Android system booting optimization method, storage medium and intelligent terminal - Google Patents
One kind is based on Android system booting optimization method, storage medium and intelligent terminal Download PDFInfo
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- CN110018855A CN110018855A CN201910235695.4A CN201910235695A CN110018855A CN 110018855 A CN110018855 A CN 110018855A CN 201910235695 A CN201910235695 A CN 201910235695A CN 110018855 A CN110018855 A CN 110018855A
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- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/4401—Bootstrapping
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Abstract
The invention discloses one kind based on Android system booting optimization method, storage medium and intelligent terminal, method includes: when Android system booting, control instruction is issued to Zygote thread, Zygote thread is controlled before forkSystemServer, reduces the unlatching to time-consuming thread；By thread by Zygote Preload load in preload Resources and preload Classes loaded in parallel；Introduce whitelist file and multi-thread mechanism, the application program that scanning is had to when by system boot is stored into the whitelist file, and only the application program in whitelist file is scanned when being switched on scanning, after the completion of scanning, sends system boot broadcast notice Android system booting and complete.The present invention solves the problems, such as that Android intelligent terminal starting up is slow, takes a long time, and provides convenience to the use of user.
Description
Technical field
The present invention relates to intelligent terminal technical field, more particularly to it is a kind of based on Android system booting optimization method,
Storage medium and intelligent terminal.
Background technique
Android system is the operating system for a open source that Google releases, and is based on linux kernel, has good open
Hair property, is now widely used in the hand held devices such as mobile phone, is also gradually applied in the equipment and product such as TV.Peace
When tall and erect system starts, successively Bootloader, kernel program, system service and system homepage, so far complete whole system
Starting.
Due to Android system, starting up is slow, takes a long time.The use of user is not only influenced, but also in Android intelligent terminal
It carries out in production process, system needs to carry out restarting several times, when so that production checking that need of work waits longer
Between, affect the production efficiency of batch production.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that in view of the above drawbacks of the prior art, providing a kind of based on Android system
System booting optimization method, storage medium and intelligent terminal, it is intended to solve existing android terminal device power-up starting slowly, take a long time
The problem of.
The technical proposal for solving the technical problem of the invention is as follows:
One kind is based on Android system booting optimization method, wherein the described method includes:
When Android system booting, control instruction is issued to Zygote thread, control Zygote thread exists
Before forkSystemServer, the unlatching to time-consuming thread is reduced；
By creation thread by Zygote Preload load in preload Resources and preload Classes simultaneously
Row load；
Whitelist file and multi-thread mechanism are introduced, the application program that scanning is had to when by system boot is stored to described white
In name monofile, and only the application program in whitelist file is scanned when being switched on scanning, after the completion of scanning, is sent
System boot broadcast notice Android system booting is completed.
It is described to be switched on optimization method based on Android system, wherein it is described by creation thread by Zygote Preload
Preload Resources and preload Classes loaded in parallel in load further include:
Modify preload Resources, it will not be necessary to which the Resource removes.
It is described to be switched on optimization method based on Android system, wherein the method also includes:
The correlation in garbage reclamation mechanism is adjusted, the frequency of garbage reclamation is controlled, preset value is arranged in the correlation.
It is described to be switched on optimization method based on Android system, wherein the method also includes:
The printing of operating system nucleus is subtracted into predetermined value or closing, by the print log rank inside bootargs parameter
Grade turns predetermined value down.
It is described to be switched on optimization method based on Android system, wherein the method also includes:
The application delay that attribute is persistent is started after the completion to system boot.
It is described to be switched on optimization method based on Android system, wherein the method also includes:
Start Bootloader bootstrap when Android system booting, checks the code of Bootloader.
It is described to be switched on optimization method based on Android system, wherein the introducing whitelist file and multi-thread mechanism,
The application program that scanning is had to when by system boot is stored into the whitelist file, and the only dialogue name when being switched on scanning
Application program in monofile is scanned, and after the completion of scanning, is sent system boot broadcast notice Android system booting and is completed,
Include:
The number of whitelist file and the number of threads of starting are set according to the nucleus number of system CPU；
The application program that scanning is had to when by system boot is stored into the whitelist file；
During system boot scanning, the application message in whitelist file is read by thread, and according to the application
Information is scanned；
After the completion of scanning, system boot broadcast is sent, entire Android system booting is notified to complete.
It is described to be switched on optimization method based on Android system, wherein the introducing whitelist file and multi-thread mechanism,
The application program that scanning is had to when by system boot is stored into the whitelist file, and when being switched on scanning to white list
Application program in file is scanned, and after the completion of scanning, is sent system broadcasts notice Android system booting and is completed, also wrap
It includes:
Control whitelist file other than application program, after system boot or using when be scanned.
A kind of storage medium is stored thereon with a plurality of instruction, wherein and described instruction is suitable for being loaded and being executed by processor,
To execute the step of realizing the booting optimization method described in any of the above embodiments based on Android system.
A kind of intelligent terminal, comprising: processor, the storage medium being connect with processor communication, wherein the storage medium
Suitable for storing a plurality of instruction；The processor is suitable for calling the instruction in the storage medium, to execute realization any of the above-described
It is described based on Android system be switched on optimization method the step of.
Beneficial effects of the present invention: the present invention is due to optimizing Zygote thread, having modified Zygote load resource and class
Mode and scan mechanism is had adjusted, solves the problems, such as that Android intelligent terminal starting up is slow, takes a long time, to making for user
With providing convenience, and the waiting time that Android intelligent terminal needs to restart several times in process of production is shortened, mentioned
High production efficiency.
Detailed description of the invention
Fig. 1 is the flow chart of Android system starting up's process.
Fig. 2 is the flow chart of the preferred embodiment provided by the invention based on Android system booting optimization method.
Fig. 3 is provided by the invention based on Zygote forkSystemServer couple in Android system booting optimization method
The processing call flow chart of thread.
Fig. 4 is the schematic diagram of the function of intelligent terminal provided by the invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
It is provided by the invention a kind of based on Android system booting optimization method, it can be applied in intelligent terminal.Wherein, intelligence
Can terminal can be, but not limited to be various TVs, personal computer, laptop, mobile phone, tablet computer, vehicle-mounted computer and just
Take formula wearable device.Terminal of the invention uses multi-core processor.Wherein, the processor of intelligent terminal can be central processing
Device (Central Processing Unit, CPU), graphics processor (Graphics Processing Unit, GPU), video
At least one of processing unit (Video Processing Unit, VPU) etc..
As shown in fig. 1, when Android system starting up, successively by Bootloader guidance 10, linux kernel 20,
Init process 30, Zygote thread 40, system service 50, application management service 60, packet management service 70 and homepage 80, so far
The starting of entire Android system is completed, but since Android system starting up is slow, short time consumption is long, influences the experience of user.
Also, since Android intelligent terminal is in carrying out production process, system needs to carry out restarting several times, so that checking work
It needs to wait longer time, affects the production efficiency of batch production.To solve the above-mentioned problems, the present embodiment provides one
Kind is specific as shown in Figure 2 based on Android system booting optimization method, comprising the following steps:
Step S100, when Android system is switched on, control instruction is issued to Zygote thread, control Zygote thread exists
Before forkSystemServer, the unlatching to time-consuming thread is reduced；
Step S200, by creating thread for the preload Resources and preload in Zygote Preload load
Classes loaded in parallel；
Step S300, whitelist file and multi-thread mechanism are introduced, the application program that scanning is had to when by system boot is deposited
It puts into the whitelist file, and only the application program in whitelist file is scanned when being switched on scanning, work as scanning
After the completion, system boot broadcast notice Android system booting is sent to complete.
The present embodiment mainly in such a way that optimization to Zygote thread, Zygote Preload load resource and class into
Row modification, and packet scan mechanism is adjusted, to shorten the time of Android system starting up.Specifically, for Zygote line
The optimization of journey shows Zygote fork System Server to the processing call flow of thread as shown in Figure 3, in Fig. 3
Figure.From figure 3, it can be seen that passing through a series of calling from the Main function of ZygoteInit, eventually calls and arrive
WaitUntilAllThreads Stopped(in ZygoteHooks).It pays close attention to
WaitUntilAllThreadsStopped(), the effect of this method is to wait all threads to terminate using block type circulation,
Until becoming single thread, such way is in order to ensure SystemServer this kernel process fork success.From this
Method can be seen that if there is time-consuming thread is run always, this method will wait always, until all threads terminate to become single
Thread.Based on this point, in the Main(of ZygoteInit) have a preload method inside method, opened one 10 seconds it is super
The thread of Shi Chongqi.Therefore based on analysis above, when forkSystemServer, thread can be waited to terminate always.
Will be 10 seconds time-consuming on this thread, deduct other code overhead, this overtime thread will increase general 8 seconds time-consumings.Cause
This, the present embodiment issues control instruction to Zygote thread, control Zygote thread exists when Android system is switched on
Before forkSystemServer, it is reduced as far as the unlatching of thread, especially time-consuming thread, can thus be contracted significantly
Starting up's time of short Android system.
Further, the loading method for Zygote Preload includes: 1) preload Resources；2)
preloadClasses；3) preloadOpenGL；4) preloadShared Libraries.Time-consuming place is
PreloadResources and preloadClasses, therefore, in the present embodiment can will be by creation thread by Zygote
Preload Resources and preloadClasses loaded in parallel in Preload load.In addition, being directed to Zygote
Preload modifies preloadResources, it will not be necessary to which the Resource removes, such as preload Drawables is gone
Fall.
Further, in this embodiment also to the correlation in garbage reclamation (GC, Gabage Collection) mechanism into
Row adjustment.For low memory intelligent terminal, GC time-consuming is very big, and whole system starting up may reach several seconds.Because Java exists
Garbage reclamation (GC) mechanism is increased on JVM virtual machine, in suitable time trigger garbage reclamation, by unwanted memory
Space reclamation release, OOM(Out Of MemoryError caused by avoiding unconfined memory from increasing).From
In ZygoteInit.java and GC correlative code can be seen that this numerical value of PRELOAD_GC_THRESHOLD is bigger, GC rubbish
The frequency of recycling is lower, and starting up is faster.This numerical value of PRELOAD_GC_THRESHOLD is smaller, GC garbage reclamation
Frequency is higher, and starting up is slower.Therefore, in the present embodiment adjust garbage reclamation mechanism in correlation (i.e.
PRELOAD_GC_THRESHOLD), the frequency of garbage reclamation is controlled.But due to this number of PRELOAD_GC_THRESHOLD
Value is not the bigger the better, because this value is bigger, the problems such as stuck is more easy to appear in start process, so should
PRELOAD_GC_THRESHOLD, which should meet, shortens the system boot time, and guarantees system stability.
Due to kernel(operating system nucleus) printing can occupy a large amount of interruptions, by kernel's in the present embodiment
Printing is reduce or turn off, and also has biggish benefit to Android system starting up speed is improved.Preferably, by bootargs
Loglevel(print log rank inside parameter) grade change as far as possible small, when software closed loop volume production, is readily modified as 0.
Further, corresponding initialization is because in Apk during Android system starting
The value of application node android:persistent is true in AndroidManifest.xml.This attribute is from word
Can be understood as on face can be lasting, that is, resident application.The application modified by the attribute can after the system starts
It is started up by Activity Manager, it is initial due to be carried out to the application of persistent attribute between system startup
Change leads to time-consuming, in the present embodiment that the application delay of persistent attribute is complete to system boot in order to optimize the available machine time
At rear starting, the time of the system boot that effectively shortens starting.
Further, since Android system in the prior art is in normal boot-strap, Android can pass through Package
Manager Service scans all applications, including/system/app ,/system/vendor/app ,/system/
All applications and jar packet under the catalogues such as framework ,/system/priv-app ,/data.It, can handle after the completion of scanning
All information is stored in memory variable mPM, when needing to inquire application message, is directly read from memory variable, cause be
The system available machine time is long.Therefore, the present embodiment is adjusted installation kit scan mechanism, will be some inessential and be of little use
App is put into after booting or is only just scanned when in use.In order to shorten the available machine time, introducing white list and multi-thread mechanism,
Be switched on must application message to be started be stored in whitelist file the inside.The number of whitelist file and the thread of starting
Quantity will be configured according to the nucleus number of master chip CPU.In the present embodiment by taking Hi3751V553 platform software is thought in sea as an example,
Hi3751V553 platform software system is developed based on Android5.1, and 8H26-M9 TV is developed based on Hi3751V553.Due to
Hi3751V553 is double-core CPU, needs whitelist file to split into two whitelist files, respectively whitelist file 1, white
Name monofile 2, number of threads are two.During being switched on scanning, current main thread creates and starts a sub thread, main
Thread and sub thread read whitelist file 1, the application message that whitelist file 2 stores respectively parallel.According to these information into
Row scanning, and control the scanning of these application delays except whitelist file.After the completion of scanning, system BOOT_ is sent
COMPLETED broadcast notifies entire Android system booting to complete.When receiving booting broadcast, many system process can all be looked into
This memory variable of mPM is ask, and initializes correlated condition.Due to these applications except whitelist file, one can be considered as
Application that is a little inessential and being of little use is put into them after Android system booting or is only just scanned when in use.?
Starting up is not necessarily to the application message under all catalogues of scanning system in the process, avoids the read-write operation of scanning process, shortens
Available machine time.
Preferably, it is optimized in the present embodiment also for the time-consuming of Bootloader guidance, Bootloader guidance consumption
When include two parts: the operation of Bootloader itself and point screen are time-consuming.The optimization of this block mainly checks Bootloader's
Code reduces the time of time-consuming operation and point screen.
For the present embodiment by taking Hi3751V553 platform software is thought in sea as an example, the performance of Hi3751V553 is lower, specifically:
Cortex A73 x 2, dominant frequency 800M, Mali450 x 5, built-in 1G DDR.Due to Hi3751V553 hardware performance by
To limitation, therefore the starting up speed of M9 is slower, and most starting test available machine time without booting video ads is 45
After second above-mentioned excessively a series of optimization, the available machine time was controlled within 25 seconds, effectively shortened Android system starting up's time.
It can be seen that the present embodiment is mainly the side for loading resource and class by the optimization to Zygote thread, Zygote Preload
Formula is modified, and is adjusted to packet scan mechanism, solves the starting of android terminal device power-up slowly, the problem of taking a long time.
Not only increase user experience, moreover it is possible to improve production efficiency in process of production.
Based on the above embodiment, the present invention also provides a kind of intelligent terminal, functional block diagram can be as shown in Figure 4.It should
Intelligent terminal includes processor, the memory, network interface, display screen, temperature sensor connected by system bus.Wherein,
The processor of the intelligent terminal is for providing calculating and control ability.The memory of the intelligent terminal includes that non-volatile memories are situated between
Matter, built-in storage.The non-volatile memory medium is stored with operating system and computer program.The built-in storage is non-volatile
The operation of operating system and computer program in storage medium provides environment.The network interface of the intelligent terminal is used for and outside
Terminal by network connection communication.It is a kind of excellent based on Android system booting to realize when the computer program is executed by processor
Change method.The display screen of the intelligent terminal can be liquid crystal display or electric ink display screen, the temperature of the intelligent terminal
Sensor is to be arranged inside intelligent terminal in advance, for detecting the current running temperature of internal unit.
It will be understood by those skilled in the art that functional block diagram shown in Fig. 3, only portion relevant to the present invention program
The block diagram of separation structure does not constitute the restriction for the intelligent terminal being applied thereon to the present invention program, specific intelligent terminal
It may include perhaps combining certain components or with different component layouts than more or fewer components as shown in the figure.
In one embodiment, a kind of intelligent terminal, including memory and processor are provided, is stored with meter in memory
Following steps at least may be implemented when executing computer program in calculation machine program, the processor: when Android system booting, to
Zygote thread issues control instruction, controls Zygote thread before forkSystemServer, reduces to time-consuming thread
Unlatching；
By creation thread by Zygote Preload load in preload Resources and preload Classes simultaneously
Row load；
Whitelist file and multi-thread mechanism are introduced, the application program that scanning is had to when by system boot is stored to described white
In name monofile, and only the application program in whitelist file is scanned when being switched on scanning, after the completion of scanning, is sent
System boot broadcast notice Android system booting is completed.
Modification can also be performed the steps of when the processor executes computer program in one of the embodiments,
Preload Resources, it will not be necessary to which the Resource removes.
It can also perform the steps of when the processor executes computer program in one of the embodiments, by attribute
To start after the completion of the application delay to system boot of persistent.
It can also be performed the steps of when the processor executes computer program in one of the embodiments, and work as Android
Start Bootloader bootstrap when system boot, check the code of Bootloader, reduces time-consuming operation and point screen
Time.
It can also be performed the steps of when the processor executes computer program in one of the embodiments, according to being
The number of the nucleus number setting whitelist file of system CPU and the number of threads of starting；Answering for scanning is had to when by system boot
It is stored with program into the whitelist file；During system boot scanning, read in whitelist file by thread
Application message, and be scanned according to the application message；After the completion of scanning, system boot broadcast is sent, notice is entire
Android system booting is completed.
It is white that control can also be performed the steps of when the processor executes computer program in one of the embodiments,
Name monofile other than application program, after system boot or using when be scanned.
Those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the computer program can be stored in a non-volatile computer
In read/write memory medium, the computer program is when being executed, it may include such as the process of the embodiment of above-mentioned each method.Wherein,
To any reference of memory, storage, database or other media used in each embodiment provided by the present invention,
Including non-volatile and/or volatile memory.Nonvolatile memory may include read-only memory (ROM), programming ROM
(PROM), electrically programmable ROM(EPROM), electrically erasable ROM(EEPROM) or flash memory.Volatile memory may include
Random-access memory (ram) or external cache.By way of illustration and not limitation, RAM is available in many forms,
Such as static state RAM(SRAM), dynamic ram (DRAM), synchronous dram (SDRAM), double data rate sdram (DDRSDRAM), enhancing
Type SDRAM(ESDRAM), synchronization link (Synchlink) DRAM(SLDRAM), memory bus (Rambus) direct RAM
(RDRAM), direct memory bus dynamic ram (DRDRAM) and memory bus dynamic ram (RDRAM) etc..
In conclusion the invention discloses one kind to be based on Android system booting optimization method, storage medium and intelligent terminal,
Method includes: to issue control instruction when Android system booting to Zygote thread, control Zygote thread, control Zygote
Thread reduces the unlatching to time-consuming thread before forkSystemServer；By creating thread for Zygote
Preload Resources and preload Classes loaded in parallel in Preload load；Introduce whitelist file and
Multi-thread mechanism, the application program that scanning is had to when by system boot is stored into the whitelist file, and is swept in booting
Only the application program in whitelist file is scanned when retouching, after the completion of scanning, sends system boot broadcast notice Android
System boot is completed.The present invention solves the problems, such as that Android intelligent terminal starting up is slow, takes a long time, and mentions to the use of user
Convenience is supplied.
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. one kind is based on Android system booting optimization method, which is characterized in that the described method includes:
When Android system booting, control instruction is issued to Zygote thread, control Zygote thread exists
Before forkSystemServer, the unlatching to time-consuming thread is reduced；
By creation thread by Zygote Preload load in preload Resources and preload Classes simultaneously
Row load；
Whitelist file and multi-thread mechanism are introduced, the application program that scanning is had to when by system boot is stored to described white
In name monofile, and only the application program in whitelist file is scanned when being switched on scanning, after the completion of scanning, is sent
System boot broadcast notice Android system booting is completed.
2. according to claim 1 based on Android system booting optimization method, which is characterized in that described pass through creates line
Journey by Zygote Preload load in preload Resources and preload Classes loaded in parallel further include:
Modify preload Resources, it will not be necessary to which the Resource removes.
3. according to claim 1 based on Android system booting optimization method, which is characterized in that the method also includes:
The correlation in garbage reclamation mechanism is adjusted, the frequency of garbage reclamation is controlled, sets preset value for the correlation.
4. according to claim 1 based on Android system booting optimization method, which is characterized in that the method also includes:
The printing of operating system nucleus is reduced into predetermined value or closing, by the print log rank inside bootargs parameter
Grade turn predetermined value down.
5. according to claim 1 based on Android system booting optimization method, which is characterized in that the method also includes:
The application delay that attribute is persistent is started after the completion to system boot.
6. according to claim 1 based on Android system booting optimization method, which is characterized in that the method also includes:
Start Bootloader bootstrap when Android system booting, checks the code of Bootloader.
7. according to claim 1 based on Android system booting optimization method, which is characterized in that the introducing white list text
Part and multi-thread mechanism, the application program that scanning is had to when by system boot are stored into the whitelist file, and
Only the application program in whitelist file is scanned when booting scanning, after the completion of scanning, it is logical to send system boot broadcast
Know that Android system booting is completed, comprising:
The number of whitelist file and the number of threads of starting are set according to the nucleus number of system CPU；
The application program that scanning is had to when by system boot is stored into the whitelist file；
During system boot scanning, the application message in whitelist file is read by thread, and according to the application
Information is scanned；
After the completion of scanning, system boot broadcast is sent, entire Android system booting is notified to complete.
8. according to claim 7 based on Android system booting optimization method, which is characterized in that the introducing white list text
Part and multi-thread mechanism, the application program that scanning is had to when by system boot are stored into the whitelist file, and
The application program in whitelist file is scanned when booting scanning, after the completion of scanning, system broadcasts is sent and notifies Android
System boot is completed, further includes:
Control whitelist file other than application program, after system boot or using when be scanned.
9. a kind of storage medium is stored thereon with a plurality of instruction, which is characterized in that described instruction is suitable for being loaded and being held by processor
Row realizes the claims 1-8 described in any item the step of being based on Android system booting optimization method to execute.
10. a kind of intelligent terminal, comprising: processor, the storage medium being connect with processor communication, which is characterized in that described to deposit
Storage media is suitable for storing a plurality of instruction；The processor is suitable for calling the instruction in the storage medium, above-mentioned to execute realization
Claim 1-8 it is described in any item based on Android system booting optimization method the step of.
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| CN112035172A (en) * | 2020-09-03 | 2020-12-04 | 腾讯科技（深圳）有限公司 | Operating system starting method, device, server and storage medium |
| CN112527403A (en) * | 2019-09-19 | 2021-03-19 | 华为技术有限公司 | Application starting method and electronic equipment |
| CN114047961A (en) * | 2021-11-15 | 2022-02-15 | 合众新能源汽车有限公司 | Android system starting optimization method, intelligent terminal and computer readable medium |
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