jvm-hotspot

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Encourage the JVM to GC rather than grow the heap?

(Note that when I say \"JVM\", I really mean \"Hotspot\", and I\'m running the latest Java 1.6 update.)[详细]

2023-02-17 22:22 分类：问答
Android application Wi-Fi device - AP connectivity

I am building an application which can transfer data between a mobile and a Wi-Fi device... The mobile has got the AP enabled (through code) and another device connects to this specific network... How[详细]

2023-02-15 07:39 分类：问答
How do i know which default settings are enabled for Sun JVM?

i want to try CompressedOops on my JVM. No I wonder if it might be enabled by default. I run this jvm on debian/squeeze:[详细]

2023-02-15 06:57 分类：问答
Why does Java , running in -server mode, say that the version is "mixed-mode"?

Why does Java , running in -server mode, say that the version is \"mixed-mode开发者_StackOverflow社区\" ?When I see that, does it mean that the JVM didn\'t truly load in pure server mode?server mode d[详细]

2023-02-08 15:55 分类：问答
Continuous Full GC even though Old Generation is not filled up

Every few days we see continuous Full GC (more than 1000 FullGC\'s)and then the application comes to normal...the verbose GC log is as below .. when it is doing Full GC, the old generation is not fill[详细]

2023-02-08 09:24 分类：问答
JVM crash at CompilerThread

My java application is crashing almost consistently when trying to compile a specific method (it\'s always the same method), with SIGSEGV:[详细]

2023-02-04 19:13 分类：问答
Bounds Checking in Java

\"Hotspot can remove bounds chec开发者_开发问答king in Java.\" Can any one explain this please? Actually im analysing the differences between C++ and Java. It is not a homework and im analysing on my[详细]

2023-01-31 15:18 分类：问答
Default for XX:MaxDirectMemorySize

What is the default value for XX:MaxDirectMemorySize?开发者_如何学JAVAFrom sun.misc.VM, it\'s Runtime.getRuntime.maxMemory(), that\'s what is configured with -Xmx. E. g. if you don\'t configure -XX:Ma[详细]

2023-01-17 09:28 分类：问答
Does (sun-jvm) hotspot optimization take place multiple times, if a class is loaded by different classloaders?

imagine a (container-) application is creating multiple classloaders to host a couple of other/sub- applications.[详细]

2023-01-17 06:22 分类：问答
Where is variablilty in stack consumption coming from?

Whilst running test code from this question and fiddling with the JVM\'s thread stack size, I found that results were not necessarily repeatable:there were values of stack size for which the program w[详细]

2023-01-16 12:51 分类：问答