Ongoing Optimization: Acquire-Release Semantic with CppMem

With the acquire-releae semantic, we break the sequential consistency. In the acquire-release semantic the synchronization takes place between atomic operations on the same atomic and not between threads.

Read more
Comments 1Views: 5540

Ongoing Optimization: Sequential Consistency with CppMem

With atomic data types you can tailor your program to your needs and therefore optimize it. But now we are in the domain of the multithreading experts.

Read more
Comments 4Views: 6552

Ongoing Optimization: Locks and Volatile with CppMem

The easiest way to solve the undefined behaviour in the post Ongoing Optimization: Unsynchronized access is, to use a lock.

Read more
Add CommentViews: 5978

Ongoing Optimization: Unsynchronized Access with CppMem

I've described my challenge in the last post. Let' start with our process of ongoing optimization. To be sure, I verify my reasoning with CppMem. I once made a big mistake in my presentation at Meeting C++ 2014.

Read more
Comments 3Views: 7264

Ongoing Optimization

Now it's time to put the theory into practice. The job is quite easy. A small program should undergo an ongoing optimization.

Read more
Comments 7Views: 7268

CppMem - An Overview

CppMem is an interactive tool for exploring the behaviour of small code snippets of the C++ memory model. It should, no it has to be in the tool box of each programmer, who deals seriously with the memory model.

Read more
Comments 27Views: 14262

Relaxed Semantic

The relaxed semantic is the end of the Scala. The relaxed semantic is the weakest of all memory models and guarantees only, that the operations on atomic variables are atomic.

Read more
Comments 11Views: 11652

Acquire-Release Fences

Acquire and release fences guarantees similar synchronisation and ordering constraints as atomics with acquire-release semantic. Similar, because the differences are in the details.

Read more
Comments 11Views: 17496

Fences are Memory Barriers

The key idea of a std::atomic_thread_fence is, to establish synchronisation and ordering constraints between threads without an atomic operation.

Read more
Comments 8Views: 36212

Acquire-Release Semantic - The typical Misunderstanding

A release operation synchronizes-with an acquire operation on the same atomic variable. So we can easily synchronise threads, if ... . Today's post is about the if.

Read more
Comments 2Views: 12237

My Newest E-Books

Course: Modern C++ Concurrency in Practice

Course: C++ Standard Library including C++14 & C++17

Course: Embedded Programming with Modern C++

Course: Generic Programming (Templates)

Subscribe to the newsletter (+ pdf bundle)

Blog archive

Source Code

Visitors

Today 305

All 2687838

Currently are 146 guests and no members online

Kubik-Rubik Joomla! Extensions

Latest comments