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Hidden Features of MySQL
...le resource when setting these parameters. For example sort_buffer_size is allocated only if MySQL needs to do a sort. Note: be careful not to run out of memory.
If you have many connects established (i.e. a web site without persistent connections) you might improve performance by setting thread_ca...
Differences and relationship between glActiveTexture and glBindTexture
...texture, but they do not technically change its state. The Image functions allocate texture storage and set the texture's format; the SubImage functions just copy pixels around. That is not considered the texture's state.
Allow me to repeat: these are the only functions that modify texture state. g...
What is a NullPointerException, and how do I fix it?
...e initialize like this:
private static String[] foo = new String[2];
we allocate a String[] with two elements that are initialized to null. After that, we have not changed the contents of foo ... so foo[1] will still be null.
...
Is quitting an application frowned upon?
...g games which use native code. Killing the process means releasing all the allocated memory back to the system, immediately.
– Sulthan
Apr 6 '12 at 9:32
10
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Why do we need private subnet in VPC?
...ince you need half as many subnets, you could choose to use a smaller CIDR allocation for your VPC or you could make bigger subnets with the same size VPC. And fewer subnets means you'll be paying less for inter-AZ traffic as well.
So, why don't we do this? Why does AWS say the best practice is to ...
Sorting 1 million 8-decimal-digit numbers with 1 MB of RAM
...ws IOException {
for (int i = 0; i < bucket.length; i++) { // allocate buckets
bucket[i] = new Bucket();
}
for(int i=0; i< NUM_COUNT; i++) { // produce some data
int value = p.produce();
int bucketId = value/BUCKET_RANGE;
...
Proper use of the IDisposable interface
...
}
And you're done. Except you can do better.
What if your object has allocated a 250MB System.Drawing.Bitmap (i.e. the .NET managed Bitmap class) as some sort of frame buffer? Sure, this is a managed .NET object, and the garbage collector will free it. But do you really want to leave 250MB of ...
Pretty-print C++ STL containers
...you do actually include the headers.
template<typename T, typename TAllocator> class vector;
template<typename T, typename TAllocator> class list;
template<typename T, typename TTraits, typename TAllocator> class set;
template<typename TKey, typename TValue, type...
How to make an OpenGL rendering context with transparent background?
...eg. IRIX */
cmap = XCreateColormap(Xdisplay, Xroot, visual->visual, AllocNone);
attr.colormap = cmap;
attr.background_pixmap = None;
attr.border_pixmap = None;
attr.border_pixel = 0;
attr.event_mask =
StructureNotifyMask |
EnterWindowMask |
LeaveWi...
In what order are Panels the most efficient in terms of render time and performance?
....
The child does not have to (and frequently does not) fill the entire
allocated space. Control is then returned to the parent Panel and the
layout process is complete.
From Measuring and Arranging Children
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