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Delta time or delta timing is a concept used amongst programmers in relation to hardware and network responsiveness. [1] In graphics programming, the term is usually used for variably updating scenery based on the elapsed time since the game last updated, [2] (i.e. the previous "frame") which will vary depending on the speed of the computer, and how much work needs to be done in the program at ...
A pause frame includes the period of pause time being requested, in the form of a two-byte (16-bit), unsigned integer (0 through 65535). This number is the requested duration of the pause. The pause time is measured in units of pause quanta, where each quanta is equal to 512 bit times.
Larry Roberts considered a time-slotted ALOHA channel with each time slot long enough for a packet transmission time. (A satellite channel using the TDMA protocol is time slotted.) Using the same Poisson process and steady state assumptions as Abramson, Larry Roberts showed that the maximum throughput rate is 1/ e = 0.368 in theory. [ 5 ]
The means of packet selection for measurement is not specified in RFC 3393, but could, for example, be the packets that had the largest variation in delay in a selected time period. The delay is specified from the start of the packet being transmitted at the source to the start of the packet being received at the destination.
The time is measured from the end of the frame check sequence of one frame to the start of the preamble for the next. [ 2 ] : 5 During data reception, some interpacket gaps may be smaller due to variable network delays, clock tolerances (all speeds), and the presence of repeaters (10 Mbit/s only).
Spinning can also be used to generate an arbitrary time delay, a technique that was necessary on systems that lacked a method of waiting a specific length of time. Processor speeds vary greatly from computer to computer, especially as some processors are designed to dynamically adjust speed based on current workload. [ 1 ]
The following REBOL/Red code demonstrates callback use. As alert requires a string, form produces a string from the result of calculate; The get-word! values (i.e., :calc-product and :calc-sum) trigger the interpreter to return the code of the function rather than evaluate with the function. The datatype! references in a block!
Function calls and blocks of code, such as code contained within a loop, are often replaced by a one-line natural language sentence. Depending on the writer, pseudocode may therefore vary widely in style, from a near-exact imitation of a real programming language at one extreme, to a description approaching formatted prose at the other.