访问单例的并发线程

Question

how does Java behave when it has thousands of threads accessing the same instance?

I am building an ERP and I am intending to create a Singleton so that it is able to do any kind of persistence (Insert, Update, Delete) in my base. This singleton will have no global variables other than the instance itself. It will have only its methods.

My question is that as I will centralize all ERP persistence on this single instance, this can become a bottleneck and a cause for slowness. Can this occur? I'm talking about 500,000 simultaneous hits in this instance.

Answer 1

如果您的单例是不可变的，则多个线程将同时使用其方法而不会降低延迟。