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What does -XX:MaxPermSize do?
.... If so, the maximum permanent generation size can
be increased with the command-line option -XX:MaxPermSize=.
Note that this other Oracle documentation lists the other HotSpot arguments.
Update : Starting with Java 8, both the permgen space and this setting are gone. The memory model used for ...
Are HLists nothing more than a convoluted way of writing tuples?
.... shapeless provides a form of polymorphic function value which allows the compiler to select type-specific cases in exactly the way you're doubtful about. For instance,
// size is a function from values of arbitrary type to a 'size' which is
// defined via type specific cases
object size extends P...
How can I do SELECT UNIQUE with LINQ?
...at goes in the .OrderBy() parameters. You have name=>name. Is that name coming from the column name in the DB? Because we have dbo.Color.Name then just name=>name which hints to me it is not the column name ? Bizarre it also sorts properly if I just change that to .OrderBy(a=>a)
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What is a “Bitmap heap scan” in a query plan?
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The best explanation comes from Tom Lane, which is the algorithm's author unless I'm mistaking. See also the wikipedia article.
In short, it's a bit like a seq scan. The difference is that, rather than visiting every disk page, a bitmap index sc...
SQL set values of one column equal to values of another column in the same table
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Incompatible implicit declaration of built-in function ‘malloc’
... ahh thanks :) still getting the hang of C, first C program coming from java :)
– SGE
Aug 13 '11 at 13:53
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