Usually the term is used in the context of comparing different implementations or possible implementations.įor example we might say that a particular approach might incur considerable CPU overhead while another might incur more memory overhead and yet another might weighted to network overhead (and entail an external dependency, for example).
#Filebeats cpu overhead code#
Of course, the added maintainability makes it very much worth it, but in some cases, excessive method calls can have a significant performance impact.įor a programmer overhead refers to those system resources which are consumed by your code when it's running on a giving platform on a given set of input data. This represents CPU overhead compared to a program that does everything in a single monolithic function. But each method call requires setting up a stack frame, copying parameters and a return address.
If the elements are the same size as a pointer, this means a 50% memory overhead, whereas an array can potentially have 0% overhead. Data structure memory overhead: A linked list requires at least one pointer for each element it contains.You can reduce the overhead by using larger packet sizes and UDP has a smaller header and no handshake. Thus, you cannot use the entire bandwidth the hardware is capable of for your actual data.
Protocol overhead: Ethernet frames, IP packets and TCP segments all have headers, TCP connections require handshake packets.In general, it's resources (most often memory and CPU time) that are used, which do not contribute directly to the intended result, but are required by the technology or method that is being used. The meaning of the word can differ a lot with context.
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