threadpool

问题 How do I create a thread pool using boost in C++, and how do I assign tasks to the threadpool? 回答1: The process is pretty simple. First create an asio::io_service and a thread_group. Fill the thread_group with threads linked to the io_service. Assign tasks to the threads using the boost::bind function. To stop the threads (usually when you are exiting your program) just stop the io_service and join all threads. You should only need these headers: #include <boost/asio/io_service.hpp> #include

问题 How do I create a thread pool using boost in C++, and how do I assign tasks to the threadpool? 回答1: The process is pretty simple. First create an asio::io_service and a thread_group. Fill the thread_group with threads linked to the io_service. Assign tasks to the threads using the boost::bind function. To stop the threads (usually when you are exiting your program) just stop the io_service and join all threads. You should only need these headers: #include <boost/asio/io_service.hpp> #include

问题 I want "runnable" to run at 5tps. This is not executing paralelly. package tt; import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.DataInputStream; import java.io.FileInputStream; import java.io.FileWriter; import java.io.InputStreamReader; import java.io.OutputStreamWriter; import java.net.URL; import java.net.URLConnection; import java.util.ArrayList; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util

问题 This question already has answers here : How to create threads in nodejs (11 answers) Closed 4 years ago . So out of curiosity, I was thinking of creating my own thread pool in nodejs from which I can run number of threads in parallelly? Been looking to webworker-threads and npool but not being to understand much from it.. Is it possible to create a thread pool in nodejs? Also how to execute number of threads from the pool created in parallel number of threads/chid_processes? Like is

问题 When I try to compile it gives me Error 1 An object reference is required for the non-static field, method, or property 'ConsoleApplication1.Program.print(string)' ConsoleApplication1\ConsoleApplication1\Program.cs 15 47 ConsoleApplication1 So, I marked print as static and it works. But in a bigger program I have non-static methods. So how do I use ThreadPool with those methods? class Program { static void Main(string[] args) { ThreadPool.QueueUserWorkItem(o => print("hello")); Console

问题 To solve a problem (and better my understanding of multitasking) I have written a small thread pool implementation. This thread pool spins up a number of worker threads which pop tasks off of a queue as they are added by the client of the thread pool. For the purposes of this question when the task queue is empty the worker threads are all terminated. After doing some basic benchmarking I have discovered the application spends ~60% of its time waiting to acquire the queue lock. Presumably

问题 I have an order manager application created in C# and WPF. The order manager application needs to communicate back and forth with a shipping application that is written in a completely different shipping language. The method of communication between the programs is an XML file whose EnableShipping attribute is either a 0 or a 1 and a SQL database. In my order manager application I have button that "Begins shipping" and changes the EnableShipping attribute from a 0 to a 1. The shipping

问题 Is their any way so that i can make use of Multithreading concept to call the execution in parallel and make execution faster for created @RestController which will accepts a String and List<MultipartFile> as request parameters, and the code is working fine.Problem here is if i'm parsing one file after other via a for loop. Time taken for execution is more. Below is Controller @RequestMapping(value = "/csvUpload", method = RequestMethod.POST) public List<String> csvUpload(@RequestParam String

问题 Please assume the following: public static void main(String[] args) { ThreadPoolExecutor pool = new ThreadPoolExecutor(0, 5, 1L, TimeUnit.SECONDS, new PriorityBlockingQueue<Runnable>()); DashboardHtmlExport d = new DashboardHtmlExport(); for (int i = 0; i < 40; i++) { System.out.println("Submitting: " + i); try { Thread.sleep(cooldown); } catch (InterruptedException e) { e.printStackTrace(); } pool.submit(d.new A(i)); } } private class A implements Runnable, Comparable<A> { private int order;

问题 I was getting started with the JAX-RS tutorial on Heroku's site-> http://arcane-chamber-8582.herokuapp.com/ The main method looks like this: package com.example; import org.eclipse.jetty.server.Server; import org.eclipse.jetty.webapp.WebAppContext; /** * * This class launches the web application in an embedded Jetty container. * This is the entry point to your application. The Java command that is used for * launching should fire this main method. * */ public class Main { /** * @param args */