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Command-line Tool to find Java Heap Size and Memory Used (Linux)?
... Is there a recommendation which options of jstat one should use in order to verify just the overall memory usage of a JVM? Let's say you start the JVM with Xms=4g and Xmx=4g and you want to see, how much memory of that is already used?
– basZero
Feb 5 '...
What are the GCC default include directories?
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In order to figure out the default paths used by gcc/g++, as well as their priorities, you need to examine the output of the following commands:
For C:
gcc -xc -E -v -
For C++:
gcc -xc++ -E -v -
The credit goe...
Disable dragging an image from an HTML page
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@alex Under handler: The value false is also allowed as a shorthand for a function that simply does return false.
– Adam Merrifield
Jun 22 '16 at 14:35
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Sorting an array of objects in Ruby by object attribute?
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Ascending order :
objects_array.sort! { |a, b| a.attribute <=> b.attribute }
or
objects_array.sort_by{ |obj| obj.attribute }
Descending order :
objects_array.sort! { |a, b| b.attribute <=> a.attribute }
or
obje...
Select random lines from a file
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If you just need a random set of lines, not in a random order, then shuf is very inefficient (for big file): better is to do reservoir sampling, as in this answer.
– petrelharp
Sep 6 '15 at 23:24
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Rubymine: How to make Git ignore .idea files created by Rubymine
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That doesn't really work when the .idea folder is already under tracking
– ACV
Jan 28 '19 at 9:45
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How do I add indices to MySQL tables?
...DEX `index_name` (`col1`,`col2`)
Additionally the index should match the order of the query fields. In my extended example the index should be (ProductID,Category) not the other way around.
share
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Eclipse: Set maximum line length for auto formatting?
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Note: Eclipse (Kepler, at least) very obnoxiously allows you to edit the built-in profile to your heart's content, only to stop you from saving it with an unobtrusive notification that you CAN'T edit built-in profiles, and must create a copy and edit that instead.
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How can I pass parameters to a partial view in mvc 4
...me as if you were to call:
@Html.Partial("_SomePartial", Model)
Now, in order for your partial to actually be able to use this, though, it too needs to have a defined model, for example:
@model Namespace.To.Your.Model
@Html.Action("MemberProfile", "Member", new { id = Model.Id })
Alternativel...
The most accurate way to check JS object's type?
...ommon sense. Sure, the prototype.toString is slower than the others by an order of magnitude, but in the grand scheme of things it takes on average a couple hundred nanoseconds per call. Unless this call is being used in a critical path that's very frequently executed, this is probably harmless. I...