memory-barriers

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Volatile and Thread.MemoryBarrier in C#

To implement a lock free code for multithreading application I used volatile variables, Theoretically: The volatile keyword is simply used to make sure that all threads see the most updated value of a[详细]

2023-01-26 14:41 分类：问答
memory fences/barriers in C++: does boost or other libraries have them?

I am reading these days about memory fences and barriers as a way to synchronize multithreaded code and avoid code reordering.[详细]

2023-01-18 19:01 分类：问答
Why we need Thread.MemoryBarrier()?

In \"C# 4 in a Nutshell\", the a开发者_如何学运维uthor shows that this class can write 0 sometimes without MemoryBarrier, though I can\'t reproduce in my Core2Duo:[详细]

2023-01-12 16:54 分类：问答
order and barrier:what is the equivalent instruction on x86 for 'lwsync' on PowerPC?

My code is simple as below.I f开发者_StackOverflowound rmb and wmb for read and write,but found no general one.lwsync is available on PowerPC,but what is the replacement for x86?Thanks in advance.[详细]

2023-01-11 08:04 分类：问答
Memory barriers vs. interlocked operations

I am trying to improve my understanding of memory barriers. Suppose we have a weak memory model and we adapt Dekker\'s algorithm. Is it possible to make it work correctly under the weak memory model b[详细]

2023-01-08 03:02 分类：问答
Memory Barrier by lock statement

I read recently about memory barriers and the reordering issue and now I have some confusion about it.[详细]

2022-12-30 17:10 分类：问答
Thread Synchronisation 101

Previously I\'ve written some very simple multithreaded code, and I\'ve always been aware that at any time there could be a context switch right开发者_如何学Python in the middle of what I\'m doing, so[详细]

2022-12-25 09:53 分类：问答
How do JVM's implicit memory barriers behave when chaining constructors?

Referring to my earlier question on incompletely constructed objects, I have a second question.As Jon Skeet pointed out, there\'s an implicit memory barrier in the end of a constructor that makes sure[详细]

2022-12-24 11:14 分类：问答
Java LockSupport Memory Consistency

Java 6 API question. Does calling LockSupport.unpark(thread) have a happens-before relationship to t开发者_如何学编程he return from LockSupport.park in the just-unparked thread? I strongly suspect the[详细]

2022-12-23 04:43 分类：问答
How does _ReadWriteBarrier propagate up the call tree?

I\'m looking at this bit of text in th开发者_JAVA百科e documentation for Visual C++\'s _ReadWriteBarrier intrinsic:[详细]

2022-12-18 14:15 分类：问答