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Increase heap size in Java

I am working on a Windows 2003 server (64-bit) with 8 GB RAM. How can I increase the heap memory maximum? I am using the -Xmx1500m flag to increase the heap size to 1500 Mb. Can I increase the heap memory to 75% of physical memory (6 GB Heap)? ...
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What is the advantage of GCC's __builtin_expect in if else statements?

... | edited Mar 2 '15 at 20:01 answered Sep 8 '11 at 11:14 ...
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How do I make a column unique and index it in a Ruby on Rails migration?

... answered Sep 19 '09 at 20:39 ndpndp 19.3k44 gold badges3232 silver badges4848 bronze badges ...
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Unable to create/open lock file: /data/mongod.lock errno:13 Permission denied

... Randy SwansonRandy Swanson 1,20411 gold badge99 silver badges44 bronze badges ...
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Why Would I Ever Need to Use C# Nested Classes [duplicate]

... answered Jul 5 '09 at 15:20 Eric LippertEric Lippert 599k164164 gold badges11551155 silver badges20142014 bronze badges ...
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Excel VBA App stops spontaneously with message “Code execution has been halted”

... it. Great answer. – The_Barman Mar 20 '13 at 9:45 4 This helped me a lot. This answer deserved 1...
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Batch file. Delete all files and folders in a directory

...: del . /F /Q – Rhyuk Apr 22 '13 at 20:41 41 this only removes files - not folders ...
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A cron job for rails: best practices?

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How can I save a screenshot directly to a file in Windows? [closed]

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Cannot install packages using node package manager in Ubuntu

...dejs-legacy First of all let me clarify the situation a bit. In summer 2012 Debian maintainers decided to rename Node.js executable to prevent some kind of namespace collision with another package. It was very hard decision for Debian Technical Committee, because it breaks backward compatibility...