jvm-hotspot

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force inline in java [duplicate]

This question already has answers here: Inlining in Java (8 answers开发者_开发百科) Closed 3 years ago.[详细]

2023-04-12 08:54 分类：问答
How much programmer "assist" does Java normally need for a switch to JIT to a dispatch table?

I understand that Java does optimizations across the board and can optimize switches depending on how many cases there are, whether the switch is sparse or dense, and if the code is even hot enough fo[详细]

2023-04-08 07:03 分类：问答
Where can I find information about the inner workings of Sun's JVM?

As a developer, I want to know what the cost is of invoking a virtual method vs. interface method.Now, I know why invokeinterface can be slower than invokevirtual, but I wonder if Sun has adopted new[详细]

2023-03-27 18:58 分类：问答
Jvm JIT and Hotspot - What are the differences

I\'ve heard these terms being used, but i cant seem to find a top level view of where they fit in all together in a Java framework. I know JIT is a compiling mechanism, but is it part of JVM?[详细]

2023-03-23 21:56 分类：问答
Why's Java in this case faster (and slower) than C?

Some fellow just started learning C by reading K&R and came up with its fahrenheit-to-celcius conversion loop printed down on the first pages:[详细]

2023-03-22 15:43 分类：问答
Hotspot's scavenge GC stops running, leaving only the mark-sweep GC

I\'m experiencing somethin开发者_JS百科g weird with Hotspot\'s GC in a certain program. Sometimes, it seems almost as if the scavenge GC just dies, leaving only the mark-sweep GC running instead every[详细]

2023-03-19 12:37 分类：问答
Will the JVM ever inline an object's instance variables and methods?

Suppose I have a very tight inner loop, each iteration of which accesses and mutates a single bookkeeping object that stores some simple data about the algorithm and has simple logic for manipulating[详细]

2023-03-09 20:19 分类：问答
Is it possible for a single Java Virtual Machine to have different id's

We\'re running several JBoss instances with HotSpot 1.5.22 and today I found a JVM which has two different vmid\'s. This is what I\'m seeing:[详细]

2023-03-05 14:46 分类：问答
Fatal SIGSEGV error in Java Runtime Environment

Following error is received while running a java application on linux, crashing the jvm: # # A fatal error has been detected by the Java Runtime Environment:[详细]

2023-02-27 00:24 分类：问答
'Eden space' name origin in Garbage Collection

In Garbage Collection terminology, why is it called \'Eden Sp开发者_如何学编程ace\'? Just like that. I\'m still getting familiar with the terminology and I cannot understand why it has such name.Eden[详细]

2023-02-19 06:22 分类：问答