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What are the -Xms and -Xmx parameters when starting JVM?
...amework my computer crashes because it's taking up too much memory. Is it possible that on OpenJDK there is no hard limit on the memory by default?
– Christophe De Troyer
May 26 '14 at 13:33
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Run a batch file with Windows task scheduler
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I'm aware the original post is quite old. But this post was among the top link in google search when I was trying the answer for this problem. So I think I'd like to share the findings. Just in case, anybody including myself is forgotting this.
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How to remove jar file from local maven repository which was added with install:install-file?
...cute to do this, it's easier to just delete the files manually from the repository.
Like this on windows Documents and Settings\your username\.m2 or $HOME/.m2 on Linux
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Why can't a text column have a default value in MySQL?
...or, while on other platforms it is often a warning. While not a bug, it's possible to get trapped by this if you write code on a lenient platform, and later run it on a strict platform:
Personally, I do view this as a bug. Searching for "BLOB/TEXT column can't have a default value" returns about ...
How do I write a correct micro-benchmark in Java?
...ner loop iterations.)
Rule 2: Always run with -XX:+PrintCompilation, -verbose:gc, etc., so you can verify that the compiler and other parts of the JVM are not doing unexpected work during your timing phase.
Rule 2.1: Print messages at the beginning and end of timing and warmup phases, so you can v...
What is a classpath and how do I set it?
...let's talk about .class files, packages, and .jar files.
First, let's suppose that MyClass is something you built as part of your project, and it is in a directory in your project called output. The .class file would be at output/org/javaguy/coolframework/MyClass.class (along with every other file ...
Haskell offline documentation?
What are the possibilities, if any, for getting offline docs for Haskell core libraries (and maybe more)?
9 Answers
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Can I set a breakpoint on 'memory access' in GDB?
...r software support. Software is obviously much slower. To find out if your OS supports hardware watchpoints you can see the can-use-hw-watchpoints environment setting.
gdb$ show can-use-hw-watchpoints
Debugger's willingness to use watchpoint hardware is 1.
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How do I prevent an Android device from going to sleep programmatically?
...ibes different approaches to keeping a device awake, and when you might choose to use one. If "prevent device from going to sleep" only refers to the screen (and not keeping the CPU active) then a wake lock is probably more than you need.
You also need to be sure you have the WAKE_LOCK permission s...
What is the Python equivalent of Matlab's tic and toc functions?
...isn't always that, and a profiler is a much more heavyweight solution for most needs
– Eli Bendersky
May 2 '11 at 3:27
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