I have read about std::memory_order in C++ and understood partially. But I still had some doubts around it. Explanation on std::memory_order_acqui ...
I have read about std::memory_order in C++ and understood partially. But I still had some doubts around it. Explanation on std::memory_order_acqui ...
I have the following C# algorithm for config file writeback: It works like this: The original File.txt is renamed to File.backup. The new Fil ...
Given: Can removing the call to std::atomic_thread_fence have any effect? If so is there a succinct example? Keeping in mind that other functions m ...
Given: Is it ever possible for f to return a value other than 10, assuming there is only one thread writing to x? This would obviously not be true ...
Because ordinary reading and writing after volatile writing does not prohibit reordering, may b=3 in the following code be reordered before a=2+b? vo ...
This is a follow up question to How to demonstrate Java instruction reordering problems? There are many articles and blogs referring to Java and JVM ...
I'm trying to understand why a shared CancellationTokenSource variable is not protected by a lock or memory barriers here. I know there is a rule of ...
Since rust applies the mutex as a container/owner of its data and doesn't use an external guard like C++, I was wondering whether the rust compiler mi ...
I tried to implement Peterson Lock with C# like this But when I use this lock in 2 threads, it didn't work, someone said I should think about Instr ...
As we know, the compiler or the CPU may reorder the execution as they want, only if they follow the as-if rule. For example, if we have such a piece o ...
Below code sample is taken from JLS 17.5 "final Field Semantics": Since the instance of FinalFieldExample is published through a data race, is it p ...
From very nice Paper and article about memory reordering. Q1: I understand that cache-coherence, store buffer and invalidation queue is root cause of ...
Now we have Is it possible that the actual execution order is as follows If it is possible, how to explain a situation which seems to violate th ...
So, I was reading a lot about instruction and memory reordering and how we can prevent it, but i still have no answer to one qustion (probably because ...
When I am suspicious certain instruction reordering is allowed by the java language specification, I want to reproduce it in a jcstress test. How can ...
In Linux Kernel Development (3rd Edition), Kernel Synchronization Methods, Ordering and Barriers. There is an example: And I'm confused about the ...
OK, so a compiler is free to reorder code fragments for performance reasons. Let's suppose some code snippet, translated directly into machine code wi ...
With Java instruction reordering the execution order of the code is changed by the JVM at compile time or run time, possibly causing unrelated stateme ...
from http://en.cppreference.com : Relaxed ordering Atomic operations tagged std::memory_order_relaxed are not synchronization operations, they do not ...