Recent questions tagged Multithreading

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multithreading - Python Interpreter blocks Multithreaded DNS requests?

I just played around a little bit with python and threads, and realized even in a multithreaded script, DNS ... . Can anyone explain this? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Why does it not create many threads when many goroutines are blocked in writing file in golang?

As we know in go, a thread may be created when the goroutine has to perform a blocking call, such as a system ... i thread Threads: 5 Any ideas? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Keras Tensorflow - Exception while predicting from multiple threads

I am using keras 2.0.8 with tensorflow 1.3.0 backend. I am loading a model in the class init and then ... the multithreading. How can i fix it? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - What is the purpose of 'volatile' keyword in C#

What is the purpose of volatile keyword in C#? Where would I need to use this keyword? I saw the ... here? internal volatile string UserName; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Number of CPUs per Task in Spark

I don't quite understand spark.task.cpus parameter. It seems to me that a task corresponds to a thread ... a task in the standalone mode? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Timer in Java Thread

I have a thread which is in charge of doing some processes. I want make it so that these processing would ... (increaseTemperature, 3000); } }; See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java: Nested synchronization blocks

I saw this in one of Heinz Kabutz's Java Specialist newsletter editions and, although the rest (and indeed ... attempting to doSomething()? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Implementing boost::barrier in C++11

I've been trying to get a project rid of every boost reference and switch to pure C++11. At one point, thread ... is really no reason for it). See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java Concurrency in Practice - Sample 14.12

// Not really how java.util.concurrent.Semaphore is implemented @ThreadSafe public class SemaphoreOnLock { private ... inside the constructor? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - why wait/notify/notifyAll methods are not synchronized in java ?

in Java whenever we need to call wait/notify/notifyAll, we need to have access to object monitor (either ... taken the monitor access. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Java Thread Pool with a Bounded Queue

I'm using java.util.concurrent's Executors class to create a fixed thread pool for running request handlers for a ... for the fixed thread pool? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Python 3: does Pool keep the original order of data passed to map?

I have written a little script to distribute workload between 4 threads and to test whether the results stay ... usage during the runtime. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - C# Downloader: should I use Threads, BackgroundWorker or ThreadPool?

I'm writing a downloader in C# and stopped at the following problem: what kind of method should I use to ... you in advance for your answers. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Multiple threads writing to the same CSV in Python

I'm new to multi-threading in Python and am currently writing a script that appends to a csv file. If I was ... prefer to be covered for that. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How interrupt/stop a thread in Java?

I'm trying to stop a thread but I can't do that : public class Middleware { public void read() { try { ... could be wrong in the code above ? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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499 views

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multithreading - Dynamic resizing of java.util.concurrent.ThreadPoolExecutor while it has waiting tasks

I'm working with a java.util.concurrent.ThreadPoolExecutor to process a number of items in parallel. Although the ... waiting in the queue. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - What are the possible reason for a java.util.concurrent.RejectedExecutionException in a SingleThreadExecutor

I create the following executor in a singleton: final private ExecutorService executor = Executors.newSingleThreadExecutor( ... )); } See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Android run thread in service every X seconds

I want to create a thread in an Android service that runs every X seconds I am currently using , but ... certain interval, insight appreciated! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Cross-Process Locking in C#

I've written an API that will be used on the same box in (1) a windows service, (2) a web application, and ... , or the file system in some way. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - C# Threading - How to start and stop a thread

Can anyone give me a headstart on the topic of threading? I think I know how to do a few things but I ... user presses the enter key. Cheers! See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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630 views

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multithreading - Executing tasks in parallel in python

I am using python 2.7, I have some code that looks like this: task1() task2() task3() dependent1() ... someone can recommend a good resource?) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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665 views

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multithreading - What are atomic operations for newbies?

I am a newbie to operating systems and every answer I've found on Stackoverflow is so complicated that I am ... with no scope of interruption? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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518 views

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multithreading - Is the += operator thread-safe in Java?

I found the following Java code. for (int type = 0; type < typeCount; type++) synchronized(result) { ... better class to handle such operation? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - Delphi (XE2) Indy (10) Multithread Ping

I have a room with 60 computers/devices (40 computers and 20 oscilloscopes Windows CE based) and I would like to ... and updated in the future. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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multithreading - How to terminate or suspend a Rust thread from another thread?

Editor's note - this example was created before Rust 1.0 and the specific types have changed or been removed ... solution does not look nice. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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794 views

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multithreading - c# Threadpool - limit number of threads

I am developing a console app. I want to use a Threadpool to perform web downloads. Here is some fake code. ... they seem to have no impact. See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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600 views

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multithreading - How To Properly Update A Widget In Android 8.0 - Oreo - API 26

Let's say I have a widget for an app that has targetSDKVersion set to 26. This widget takes between 100ms ... saving anyone any battery life.) See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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553 views

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multithreading - Are Android's BroadcastReceivers started in a new thread?

If I have an inner class that extends BroadcastReceiver within my Service class, should I care about synchronization, ... in an extra thread? See Question&Answers more detail:os...

asked Oct 17, 2021 in Technique[技术] by 深蓝 (71.8m points)

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