8087 coprocessor

()Run ()Over_time = Datetime.datetime.now ()The_time = Over_time-start_timePrint (The_time)#多线程10页时间: 0:01:04.329867#啥也不加10页的时间: 0:05:48.150459#多进程10页0:01:23.375896#多进程加线程 0:01:19.268139This code for the crawl bucket Graph network Code, now open the process to add the association, the number of co-operation is not controlled, each save a picture to generate a co-formed, the process opened 8, because I this computer is eight core, the thread of code first commented out, during the problem, the p

(): Returns the status value of the event;Event.wait (): If Event.isset () ==false will block the thread;Event.set (): Sets the status value of event to true, all the threads of the blocking pool are activated into a ready state, waiting for the operating system to dispatch;Event.clear (): The status value of recovery event is false.Iv.. Co-process1, single-threaded implementation of concurrency: co-process Multiple tasks that are referred to concurrently appear to be running concurrently

This is a section of the code that analyzes the LUA coprocessor (collaboration program, Coroutine) from the LUA Reference manual interface (slightly modified): Copy Code code as follows: function foo (a) Print ("foo", a) Return Coroutine.yield (2*a) End CO = coroutine.create (function (a,b)Print ("Co-body1", A, B)Local r = foo (a+1)Print ("Co-body2", R)Local r, s = Coroutine.yield (A+b, A-b)Print ("Co-body3", R, s)return B,

coprocessor (Coroutine) and Threads (thread) One of the common purposes of the coprocessor and thread differences is to implement the context invocation of system resources, but their implementation levels are different; A thread (thraed) is a running unit that is smaller than the process level. Multi-threaded implementation of system resource context calls, is the programming language delivery system

1. What is a coprocessor?CP15 is a coprocessor,CP15: System control coprocessor CP15, which provides additional registers for configuration and control of Cache,mmu, protection system, clock mode, and other system items such as size and end operations.How do I access the CP15 coprocessor?The registers defined in the CP

Reproduced in: http://cs.fjzs.edu.cn/ketang/hbyy/11-3-2.htm11.3.2 data transfer InstructionsTo meet the need for data exchange between the coprocessor and the CPU, it is necessary to implement the instructions for data transfer between the memory unit and the coprocessor. In the coprocessor's instruction system, there are three classes of data transfer instructions: BCD transfer instruction, floating-point

First, the coprocessor introductionDefinition: HBase provides a mechanism (framework) for computing some of the logic of the user on the data store side and the HBase server. The coprocessor allows users to run their own code on the HBase server.Category: System coprocessor, table coprocessorObserver, equivalent to a trigger inside a relational databaseEndpoint,

The threads are similar to those under multithreading: have their own stacks, their own local variables, have their own instruction pointers, but share information such as global variables with other routines. The main difference between a thread and a coprocessor is that, in multiprocessor situations, multithreading is conceptually running multiple threads at the same time, and the process is done through collaboration, with only one

From: http://www.kernelchina.org /? Q = node/273 In the mips architecture, a maximum of four co-processors are supported ). Cp0 must be implemented in the architecture. It controls the CPU. MMU, exception handling, multiplication and division, and other functions depend on the cp0 of the coprocessor. It is one of the essence of MIPS and opens the door to the MIPs privileged level mode.Cp0 of MIPS contains 32 registers. For more information about them,

4. Coprocessor Access InstructionsThe coprocessor is used to perform specific processing tasks, for example: a coprocessor with mathematical calculations can control the digital processing to reduce the burden on the processor. ARM can support up to 16 coprocessors, where CP15 is the most important one.：Format:?Now we use the MRC command to read the main ID in th

in which the coprocessor is invoked, is used to drive the corresponding process from the last yield statement to execute the following code snippet until the next yield statement (corresponding to return true) or the function exits (the corresponding return is false).is a typical co-invocation:The green solid block in the figure is the actual active execution time of the process. As you can see, the full life cycle of a process is "a traversal of all

Sun Guangdong 2015.4.9 24:00Let's take a look at the role of the use of the association a total of two points:1) delay (wait) a period of time to execute code;2) Wait for an operation to complete before executing the subsequent code. Summing up is a sentence: control code at a specific time to execute.The process is not a thread, nor is it executed asynchronously. The Monobehaviour and the update function are also executed in Mainthread. Using the coprocesso