Is output buffering more expensive than FS hit?
That's about it. Is OB heavier than including a file? ...
overhead
What is "overhead"?
I am a student in Computer Science and I am hearing the word "overhead" a lot when it comes to programs and sorts. What does this mean exactly? ...
What is the cost in bytes for the overhead of a sql_variant column in SQL Server?
I have a table, which contains many columns of float data type with 15 digit precision. Each column consumes 8 bytes of storage. Most of the time the data does not require this amount of precision and could be stored as a real data type. In many cases the value can be 0, in which case I could get away with storing a single byte. My goal...
Computation overhead in C# - Using getters/setters vs. modifying arrays directly and casting speeds
I was going to write a long-winded post, but I'll boil it down here: I'm trying to emulate the graphical old-school style of the NES via XNA. However, my FPS is SLOW, trying to modify 65K pixels per frame. If I just loop through all 65K pixels and set them to some arbitrary color, I get 64FPS. The code I made to look-up what colors s...
Test for overhead of virtual functions
I set up a (perhaps very unscientific) small test to determine the overhead of virtual functions in a one-level single inheritance and the results I got were, well, exactly the same when accessing the derived class polymorphically or when accessing it directly. What was a bit surprising was the order of magnitude of computation time that...
WCF. Overhead of ConcurrencyMode.Multiple
I have a WCF service which is used synchronously, but its ConcurrencyMode is set to ConcurrencyMode.Multiple value, because the service is stateless actually. How much overhead does this mode impose? Does it make sense to change the mode to ConcurrencyMode.Single? ...
How Can I Minimize Overhead when Processing Messages in a Long Loop
I've got some long but simple loops in my Delphi program that may loop millions of times and take some seconds to execute. The code inside of the loop is very fast and has been optimized. It just takes long because it is done so many times. e.g.: Screen.Cursor = crHourGlass; R := FirstRecord; while R <> nil do begin { do something si...
Do graphic operations off-screen incur a processing overhead?
I'm trying to optimise some graphical routines for an app, and I'd like to know if off-screen animations (eg, [object startAnimating]) or just plain moving of a UIImageView by setting its rect (off-screen), have any processor overhead, or are they somehow ignored when off-screen? Many thanks for any help. ...
What is "overhead"?
What is overhead? Are there multiple types of overhead, or only one? What are some examples? ...