8087 coprocessor

Summarize:If the number of processes in the machine can withstand the more open, the faster the execution efficiency! 1. Lightweight task multi-process and process pool execution is not very efficient; Because the time to open the process when the multi-process is open And CPU switching time can be negligible! 2. When the task volume is large, because the process pool already has the open process, can be scheduled at any time, saving the time of multi-process open process and r

This is a section of the code that analyzes the LUA coprocessor (collaborative program, Coroutine): function foo (a) print ("foo", a) return Coroutine.yield (2*a) end CO = coroutine.create (function , b) print ("Co-body1", A, b) r = foo (a+1) print ("Co-body2", R) Local r, s = Coroutine.yie LD (A+B, a-b) print ("Co-body3", R, s) return B, "end" end ) print (" 1----") print ("main", Corou Tine.resume (Co, 1,) print (" 2----") print (" main", Coroutine

Import GeventDef f1 (): Print ("Print in F1") Gevent.sleep (2) Print ("Switch to Foo again")def f2 (): Print ("Print in F2") Gevent.sleep (1) Print ("Switch to F2 again")Def f3 (): Print ("Print in F3") Gevent.sleep (0) Print ("Switch to F3 again")Gevent.joinall ([ Gevent.spawn (F1), Gevent.spawn (F2), Gevent.spawn (F3)])"' Result: Print in F1 Print in F2 Print in F3 Switch to F3 again Switch to F2 again Switch to Foo

declaration. + AObject.__aiter__(self) the returns a asynchronous iterator object. + -Object.__anext__(self) $ returns a Awaitable object from iterator. When the iterator is over, $ Raisestopasynciteration Error Exception - - asynchronous Iterable An example of object, the - classReader:WuyiAsyncdefReadLine (self): the ... - Wu def __aiter__(self): - return Self About $Asyncdef __anext__(self): -val =await Self.readline () -

Today read the blog get a fun module called Trip # (PIP install trip)Compatible with version 2.7Based on two large dependency packages: TRIP: Tornado Requests In Pair .Let's take a look at simple code:Import Trip@trip.coroutine def Main (): yield trip.get ('http://www.baidu.com/') print(r.content) Trip.run (main)And then a comparison was made:ImportTime , FunctoolsImportRequests,tripdefTimeit (FN): Start_time=time.time () fn ()returnTime.time ()-Start_timeurl='https://www.baidu.com/' Tim

Reproduced from: Original: Https://liangxiansen.github.io/2016/08/08/python process thread and coprocessor/author: Liang Python Threads The threading module in Python is used to provide threading-related operations, and threads are the smallest unit of work in an application and are good at IO operations Import Threading Import Time # Create a Task def show (ARG): time.s

A taskstack generator stack is used in the following code to implement the synchronous writing of the asynchronous method Swoole_timer_after, and the invocation of the child generator is implemented incidentally; as long as there is an asynchronous

In a System v-like environment, one has the type ucontext_t defined in and the four functions Text (2), SetContext (2), Makecontext () and Swapcontext (), allow user-level context switching between multi-ple Control within a process. In the System

This is a creation in Article, where the information may have evolved or changed. The idea is simple. By setting runtime.GOMAXPROCS(1) the Golang process into single-threaded execution. Similar to Python with gevent effect. asynchronous I/O

threading all objects in the module: Thread : represents the execution object lock of one thread: Lock originated from Object Rlock: Can be reentrant to lock object so that a single thread can get the acquired lock again (recursive lock) Condition:

This is a creation in Article, where the information may have evolved or changed. Recently took over a code, is the use of Golang Revel Web framework, constantly have operations, testing to harass, novice must be honest, ask must answer, to a I will

This is a creation in Article, where the information may have evolved or changed. The idea is simple. By setting the runtime.GOMAXPROCS(1) Golang process into single-threaded execution. Similar to Python with gevent effect. asynchronous I/O

The idea is simple. By setting the runtime. Gomaxprocs (1) Let the Golang process become single-threaded execution. Similar to Python with gevent effect. asynchronous I/O concurrency is then implemented by scheduling multiple threads. PHP runs in

This article for you to share about the PHP co-formed content, there is a certain reference value, hoping to help the needy friends. Concept We know that multi-process and multithreading are effective ways to achieve concurrency. However, the

In theory, the process can significantly increase the amount of concurrency that Java applications can support, and Java should now add such a feature to the JDK7. Background knowledge Today's operating systems support multitasking, multitasking can

/8086, the zero flag gets thrownMOV dx,0080; into DX cuz it's an Intel 8088/8086JMP short Cpubye; and bail outGotnec:mov dx,0200; It ' s NEC v20/v30 so save in DXCpubye:popf; Putchur flags back to where they wereRET; And go back to where you came from; (i.e., ===> _chips) with the CPU type; Tucked away in DX for future referenceCPU_type ENDP; Check for an NDP.;; >>>>note:if you are using a MASM version ; Use THE/R option or you'll bomb cuz of the the coproce