jit

This article suggests otherwise. But there is still a need to evaluate the loop condition. Does java just employ a specific trick to recognize this case? Check out the follow-up story to the article you quote. NOTE to people answering: It appears the OP is asking about the .NET JIT, not the Java JIT, since the article referenced suggested that Java did a better job of (or that only Java did) optimizing away empty loops. EDIT: Googling for more answers, Jon Skeet's name keeps coming up. See, for example, this thread on C# optimizations . Thus, when he answers, we'll have the authoritative

In jCuda one can load cuda files as PTX or CUBIN format and call(launch) __global__ functions (kernels) from Java. With keeping that in mind, I want to develop a framework with JCuda that gets user's __device__ function in a .cu file at run-time, loads and runs it. And I have already implemented a __global__ function, in which each thread finds out the start point of its related data, perform some computation, initialization and then call user's __device__ function. Here is my kernel pseudo code: extern "C" __device__ void userFunc(args); extern "C" __global__ void kernel(){ // initialize

I am doing some performance tests on the JVM , and I would like to measure the impact of intrinsics usage. I would like to disable the JIT use of intrinsics for some methods without going into the interpreted mode. Is there a way to do that ? Thank you Use java -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_<method_name>[,...] For example java -XX:+UnlockDiagnosticVMOptions -XX:DisableIntrinsic=_equals,_hashCode As @apangin noticed, you may use -XX:+PrintIntrinsics first to see which methods are actually intrinsified in your test and disable them. 来源： https://stackoverflow.com/questions

My question is pretty straightforward: Q: What is the chance that a getter / setter method will get inlined by the compiler in Java? (Obviously there isn't a definite answer to this, but other information would be appreciated) Extra: I understand there is always a chance the compiler (Standard and JIT) will decide to make a method inline, and when it comes to getters and setters this is usually what the programmer wants. Thanks in advance. The compiler (javac) tend to have negligible impact on optimization, as optimization happens at run time. As of the JIT yes,it will probably inline either