Ridwan Sameer asked:But the drawing of the car object will be separate from passing the object yes? (I.E even though I pass the object from one thread to another, does not mean the object would be drawn at the appropriate panel)This is yet another chapter you need to learn. It depends on what...

concurrency

multi-threading

Java FX Foreground/Background Messaging

17 Jul 2019 by ireland94

This program demonstrates the methodology needed for by directional messaging between a Java FX foreground and 1 or more background threads.

Is it safe to access a concurrentqueue using an iterator?

22 Feb 2018 by Dave Kreskowiak

They hide information like that in the documentation[^]: Quote: The enumeration represents a moment-in-time snapshot of the contents of the queue. It does not reflect any updates to the collection after GetEnumerator was called. The enumerator is safe to use concurrently with reads from and...

concurrency

Same thread instead of concurrency

4 Aug 2023 by Sonhospa

Hi all, I'm afraid it's my (messed up) syntax that results in a repeated task running syncroniously instead of using multiple tasks (i.e. the 'Debug.WriteLine' message reports Thread 5 all the time). Would someone who has the relevant...

concurrency

Task

Same thread instead of concurrency

5 Aug 2023 by Graeme_Grant

There are no asynchronous operations. You need to use asynchronous File methods. Alternatively, wrap your call to TestForLTO_async in a Task.Run in the Select Linq method. UPDATE I have knocked up an example of how to do it with the...

concurrency

Task

A few questions regarding a c# concurrency project

9 Aug 2015 by Sergey Alexandrovich Kryukov

You say that "section" is some rectangle. It's very likely that some thread can work at sections, one section per thread, but you cannot say that "section should be a thread". At the same time, no matter what you do, the UI properties/methods can only be called from the UI thread.You cannot...

concurrency

multi-threading

Fastest b3sum using io_uring, faster than cat to /dev/null

26 Jul 2023 by 1f604

Source code and explanation of my io_uring based implementation of b3sum

AsynchronousSocketChannel Concurrent Writes

28 Apr 2014 by Sergey Zubarev

AsynchronousSocketChannel concurrent writes

Java

concurrency

sockets

Should I go for concurrency handling?

24 Jul 2014 by Wendelius

If concurrency handling is done properly, I believe you won't be facing any performance problems.The key thing in my opinion is to use optimistic concurrency handling instead of locking for longer periods of time. The technique for this is to use rowwversions.For starters, have a look at...

entity-framework

concurrency

Should I go for concurrency handling?

26 Jul 2014 by Mukherji Nivedita

Thanks for the response Mika... I would definitely dig more into your suggestion !!

entity-framework

concurrency

why is rowversion in MVC a byte array (byte[])

5 Dec 2014 by Grant Weatherston

Stupid question alert:why is rowVersion in MVC to handle concurrency a byte array?i thought it would just be an int (to hold a number that gets incremented / checked each time).

MVC

concurrency

why is rowversion in MVC a byte array (byte[])

15 Dec 2014 by Simon Gulliver

The underlying SQL variable is 8-bytes

MVC

concurrency

Reading, Writing multiple files concurrently

16 Dec 2014 by Tarun J

I have a folder in which I have, lets say 5 files each ~300 MB.I am trying to read all the files concurrently in a ConcurrentDictionary so that duplicate values are not there. If a new item is found then I also push it to a ConcurrentQueue. I also have a writer which DeQueues from the...

C#4.0

concurrency

multi-threading

WCF MSMQ : What is the best architecture for this type project?

26 Feb 2015 by aayzz

I work on a real WCF/MSMQ project to handle concurrency/queued!! calls from different clients, and I choose InstanceContextMode.PerSession and ConcurrencyMode.Multiple for WCF Intancing and Concurrency modes, and MessageQueueTransaction.This the requirement of the project: - Clients send...

Some applications based on Concurrent Stack

1 Apr 2015 by Bharat Mourya

I am recently learning Concurrent DataStructures and implemented data structures like queues but I am wondering if there are any real applications to these. Can suggest some working applications that we can design based on these data structures?

concurrency

I need help resolving a concurrency problem using synchronized blocks

20 Oct 2016 by kjburns1980

I have written a publisher-subscriber system for a multi-threaded project I am working on. It is my understanding that when using SynchronizedList structural operations are supposed to be thread-safe, but iteration requires that the list be wrapped in a synchronized block.For these reasons,...

Java

concurrency

collections

Sql target table lock when used in SQL procedure and informatica workflows

8 Jan 2018 by Rajesh Pandya

You can dislable lock escalation. For disalbe lock escalation you can specify at the table level using ALTER TABLE tablename SET(lock_escalation = DISABLE). For more detail look at https://msdn.microsoft.com/en-us/library/ms190273.aspx If you disable it can result in higher memory consumption....

Is it safe to access a concurrentqueue using an iterator?

22 Feb 2018 by Patrick Skelton

I have an in-memory 'circular' logger that uses a ConcurrentQueue internally. When an error occurs, I access the contents of the in-memory log to give additional context to the error message. It all seems to work fine. Then I looked again at the code and began to wonder if what I had written...

concurrency

How does CRDT compare against websockets?

11 Sep 2018 by nmeri17

I'm planning to work on a web project that requires concurrency. I have past experience with websockets and would favour using it again, although I've learnt about xamp and jabber and might be willing to explore if they're more viable. I recently learnt about CRDT (from figma) and while, from my...

WebSockets

concurrency

Entity framework concurrent savechanges deadlock

7 Mar 2019 by m.bleimuth

I am writing a quite simple Multiuser WPF application where each user can modify / delete his own data. Means each user can see all the data of other users but is not allowed to modify or delete it. The whole application performs well until 2 or more clients hit the savechanges method at the...

entity-framework

concurrency

How do I convert a parallel_for to a regular for

16 Jul 2020 by dj4400

Hi i am new to the concurrency programming I have a 32bit app which uses a parallel_for I need to add a clr dll to the app which requires me to mark the "common language runtime support" property - which results in a debug error that says...

C++

concurrency

Among threading, concurrency, and parallelism, what's the best concept to use in counter gui(tkinter)?

3 Jun 2021 by lil_mint

I was trying to create a counter gui and from what I've tried it was working but I need to use between the 3 concepts the Threading, Concurrency and Parallelism. Just want to ask what would be the best or simplest? (will insert/edit the code...

Python

concurrency

Java concurrent: airport simulation-how to release the runway after the plane had landed at the gate?

16 Sep 2021 by Hadrian Chong

I was designing the airport simulation. After the planes had accessed the runway and landed at the gate, I want it to release the runway where other planes are able to access the runway one at a time. What I have tried: package...

Java

concurrency

threads

Debug, testing for better performance without breaking thread safety in C++

11 Sep 2022 by Member 14969632

I have this multithreading (concurrent queue) C++ code where a single consumer executes tasks submitted to the concurrent queue by multiple producers. Assuming that the consumer can handle events faster than that the producers can produce them,...

C++

concurrency

multi-threading

Debug, testing for better performance without breaking thread safety in C++

10 Sep 2022 by Rick York

I would start by debugging the locking code. One way you can do this using output messages and this usually called "printf debugging" since the implementations usually used printf. What I would do is add an output statement similar to what you...

C++

concurrency

multi-threading

Debug, testing for better performance without breaking thread safety in C++

11 Sep 2022 by Greg Utas

Writing correct multithreaded code is hard, and debugging it is even harder, which is why I advocate a far less error-prone approach[^] in which each thread runs unpreemptably (locked) and yields in its thread loop after completing one or more...

C++

concurrency

multi-threading

We Make a std::shared_mutex 10 Times Faster

16 Dec 2021 by AlexeyAB

Atomic operations and C++11 memory barriers and assembler instructions generated on x86_64 CPUs

Threading - Under the Hood

11 Jul 2023 by Marco-Hans Van Der Willik

This article explores the performance, scalability and limitations of the various .NET Threading Implementations.

Programming Concurrency in C++: Part 2

3 Mar 2019 by MehreenTahir

This article is a continuation of Programming Concurrency in C++ Part 1. We will discuss synchronization, future and promises along with async and with that, will sum up the introduction of concurrency in C++.

C++11 Threads, Locks and Condition Variables

27 May 2013 by Marius Bancila

This article is a walk-through the C++11 support for threads and synchronization mechanisms (mutexes and condition variables).

We Make Any Object Thread-safe

30 Mar 2021 by AlexeyAB

Smart pointer that makes any object thread-safe for any operations, with the performance equal to that of optimized lock-free containers

Fast Multi-Reader Lock

20 Aug 2014 by Evgeny Zavalkovsky

Multi-reader lock that provides real readers' lock-free and wait-free concurency on multi core systems.

Programming Concurrency in C++: Part 1

16 Dec 2018 by MehreenTahir

This article will help you get started with concurrency and will also introduce you to the features C++ has to support concurrent programming.

Think Like a Bird for Better Parallel Programming

12 Feb 2018 by nchamberlain

Avian Computing provides new tools for thinking and designing parallel programs

SQLite with C#.Net and Entity Framework

2 Mar 2017 by Awesh Vishwakarma

The easiest way to use Entity Framework with SQLite databases in C# Winform and Console Applications

Practical System Design using MEF MVVM RX MOQ Unit Tests in WPF

27 May 2015 by Arup Banerjee

The project is a simple Temperature Converter WPF Application which will allow user to convert from Celsius to Fahrenheit and vice versa. The objective however is to demonstrate techniques that are important when building large-scale front-end enterprise software.

TPL: Producer Consumer Pattern - Thread Safe Queue Collection

24 Jul 2016 by Ameet Parse

Solving Producer Consumer Problem - Thread Safe Data Access for Shared Data

Threadsafe is Not Enough

6 Apr 2021 by Jason Sultana

In this post, you will see why Threadsafe is not enough

Abstract Lock Pattern To Selectively Synchronize An Implementation ("IOC" and DRY)

30 Sep 2018 by Steven Coco

This illustrates a simple pattern that provides a lock that can always be invoked; and may be a no-op for a non-synchronized implementation.

Concurrency vs Parallelism

20 Nov 2018 by Shivprasad koirala

This article will explain the difference between concurrency and parallelism. Concurrency vs parallelism has been a debated topic for a long time.

concurrency

parallel

Simple IoC Container Base on ConcurrentHashMap

23 Jan 2015 by vudangngoc

Is it easy to create an IoC container?

Java

concurrency

IOC

Using async/await, Seven questions about calling mechanisms.

19 Aug 2015 by Chris875

Please refer below for the several options to call a function with async/await.I put my questions below each option.Lets assume I have a 3rd party Dll and want to call a function of it asynchronously. Despite there is a function description one cannot know what actually happens...

Should I go for concurrency handling?

24 Jul 2014 by Mukherji Nivedita

Hi,I am working in a project related to Insurance and Finance domain. It is a web based application based on EDMX. The platforms which we are using ASP.NET 4.5 and Sql Server 2008. We have many screens and there are lots of places from where duplicate records can get saved. We have put...

entity-framework

concurrency

A few questions regarding a c# concurrency project

8 Aug 2015 by Ridwan Sameer

So we've been given a (very) brief introduction to concurrency. It wasn't a very fleshed out session, but either way I've decided to take on a small project.The project is to design a concurrent car park simulation.There are four entrances, and a single car can occupy one section at a...

concurrency

multi-threading

Sql target table lock when used in SQL procedure and informatica workflows

8 Jan 2018 by Tamanna Sharma

Hi, My question is regarding concurrency and locking mechanism. In my project, Informatica and SQL procedures have to process on a single SQL table. Process 1: Informatica dumps a set of records into SQL table X. Then SQL procedure need to take that set from X to process and then dump the...

Entity framework concurrent savechanges deadlock

7 Mar 2019 by Gerry Schmitz

Who told you to use "parallel" programming? I can see now why EF gets a bad rap. Hammering the system with "Save Changes", etc. You need to get back to basics. c# - Parallel doesnt work with Entity Framework - Stack Overflow[^]

entity-framework

concurrency