threadpool | 易学教程

How to run a task in max defined parallel threads using c#.net 4.0

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问题 I have 1 method that I want to run in 10 different parallel threads, all will be independent there are no dependency on each other, my problem is that if I have 100 items to process and would like to process 10 at a time then how do in run 10 at a time. I have created a sample code where I am using Parallel.ForEach but what do I need to set so it should run 10 threads at a time and suppose any of the the running task have completed then it should automatically take new one, so all 10 threads

How to run a task in max defined parallel threads using c#.net 4.0

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SpringBoot @Async 异步的使用基础篇

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请参考文档：https://rensanning.iteye.com/blog/2360749 参考： http://qiita.com/kazuki43zoo/items/8be79f98621f90865b78 http://qiita.com/kazuki43zoo/items/ce88dea403c596249e8a http://qiita.com/kazuki43zoo/items/53b79fe91c41cc5c2e59 异步处理 Java的异步处理Thread/Runnable、Callable/Future Servlet 2.5的异步处理 Tomcat的CometProcessor、Jetty的Continuations Servlet 3.0的异步处理 asyncSupported、AsyncContext Spring MVC的异步处理 @Async、AsyncTaskExecutor Spring MVC的SSE ResponseBodyEmitter、SseEmitter、StreamingResponseBody Spring Boot本身对异步调用没有多大的变动，基本还是Spring MVC的 @Async 。（1）开启Spring的异步支持 (添加 @EnableAsync ) @Configuration @EnableAsync

How to use Select-object to get details of process and thread in single query?

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问题 when i executed the following query i am not getting the Name of the process only getting the thread details. Get-Process -ProcessName Test | Select-Object @{Label='CMPNAME';Expression={$_.Name}} -ExpandProperty Threads | Select-Object {$_.Id} OUTPUT : $_.Id ----- 8412 10460 10484 10508 10520 10524 回答1: You need to tell Select-Object which properties to select: Get-Process -ProcessName Test | Select-Object @{Label='CMPNAME';Expression={$_.Name}} -ExpandProperty Threads | Select-Object CMPNAME

Use ThreadPool in C# within a loop and wait for all threads to finish

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问题 I have a simple code that looks like this in C#: using System; using System.Threading; using System.Diagnostics; namespace ThreadPooling { class Program { static void Main(string[] args) { Console.WriteLine("Enter the number of calculations to be made:"); int calculations= Convert.ToInt32(Console.ReadLine()); Console.WriteLine("Thread Pool Execution"); for (int i = 1; i <= calculations; i++) { Console.WriteLine("Staring process " + i + "..."); ThreadPool.QueueUserWorkItem(new WaitCallback

Adding thread product to array

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问题 I have to add the objects of a threadpool to an ArrayList , in order to count the total amount of objects my threadpool has created. For that I have created an ArrayList , and after I execute my threadpool I add the object to the ArrayList . My problem is that the new threadpools overwrite the existing object in my Arraylist and therefore the Arraylist will always stay the same size, no matter how many times the code is run. My ArrayList : protected ArrayList<Runnable> ComponentBuild = new

How to make Nginx wait for a thread pool task

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问题 I am writing a module that will handle the my http request. For this, I added a location content handler (or location directive handler) in my module. My content handler interfaces with a library which is not asynchronous. So within handler, I queue up a task to nginx thread pool. I also added a thread completion handler. The problem I am running into is that Nginx doesn't wait for my thread to finish. With in my location content handler, I queue up task and return NGX_DONE and Nginx

Guidelines while using: ThreadPool.SetMaxThreads and ThreadPool.SetMinThreads in C#

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问题 In one of my applications, I have to use multiple threads. As a better approach, I have replaced a thread queue by ThreadPool . At start of Form, I set Min/Max Threads as follows: ThreadPool.SetMaxThreads(20,20) ThreadPool.SetMinThreads(1,1) Later on while using, I use ThreadPool as follow: Function() { ThreadPool.QueueUserWorkItem(new WaitCallback(Action), arguments); } I am not using any sort of DeQueue . It will be help full if some one can share their experience with ThreadPool (specially

How to handle uncaught exceptions from CompletableFuture.runAsync

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问题 Our application has some code that runs asynchronously that is failing. Like this: CompletableFuture.runAsync( () -> { throw new RuntimeException("bad"); }, executorService ); We want default exception handling code that can catch these errors, in case specific uses forget to handle exceptions (this came from a production bug). This is apparently tricky. The answer given in Handling exceptions from Java ExecutorService tasks does not work. It relies on the task being a Future<?> and then

How to track .Net thread pool usage?

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问题 AFAIK some methods in the .Net library are able to do I/O jobs asynchronously without consuming a thread from the pool . If my information are correct the WebClient *Async methods do that. I'd like to verify it by checking that effectively threads from the pool are not used during a download. So my general question is : how can I monitor the current state of the thread-pool? number of threads number of busy threads Is there some API ( GetAvailableThreads ?) or performance counters that would