jvm-hotspot Archives

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IT Nursery

Difference between JVM and HotSpot?

What exactly is HotSpot and how does it relate to JVM and OpenJDK? Is it a library? What exactly does it do? Also, ...

June 4, 2022
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Class JavaLaunchHelper is implemented in both … libinstrument.dylib. One of the two will be used. Which one is undefined

I upgraded to the latest Java 7u40 on MacOS X and started getting the following message on the console when launching my application ...

May 19, 2022
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Real differences between “java -server” and “java -client”?

Is there any real practical difference between “java -server” and “java -client”? All I can find on Sun’s site is a vague “-server ...

May 7, 2022
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Does Java JIT cheat when running JDK code?

I was benchmarking some code, and I could not get it to run as fast as with java.math.BigInteger, even when using the exact ...

May 7, 2022
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How do I write a correct micro-benchmark in Java?

How do you write (and run) a correct micro-benchmark in Java? I’m looking for some code samples and comments illustrating various things to ...

April 17, 2022
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