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Latency (engineering)

Index Latency (engineering)

Latency is a time interval between the stimulation and response, or, from a more general point of view, a time delay between the cause and the effect of some physical change in the system being observed. [1]

68 relations: Air travel, Algorithmic trading, Analog-to-digital converter, Bandwidth-delay product, Bufferbloat, Classical mechanics, Communications satellite, Data buffer, Digital signal processing, Digital-to-analog converter, Direct memory access, Disk storage, Electronics, End-to-end delay, Feedback, Hard disk drive performance characteristics, Hping, Internet Control Message Protocol, Internet service provider, Interrupt, Interrupt latency, Iperf, Jitter, Lag, Lead time, Linux, Linux kernel, List of Microsoft operating systems, London, Low Earth orbit, Low latency (capital markets), M. Brian Blake, Memory latency, Mental chronometry, Microsecond, Millisecond, Netperf, Network performance, New York City, New York Stock Exchange, News presenter, Ntoskrnl.exe, Online game, Operating system, Packet switching, Performance engineering, Ping (networking utility), Polling (computer science), Process (computing), Processing delay, ..., Queuing delay, Real-time operating system, Refractive index, Response time (technology), Responsiveness, Round-trip delay time, Router (computing), Satellite constellation, Simulator sickness, Software, Speed of light, Speed of sound, Throughput, Traffic shaping, Transmission Control Protocol, Transmission time, Vehicle dynamics, Workflow. Expand index (18 more) »

Air travel

Air travel is a form of travel in vehicles such as helicopters, hot air balloons, blimps, gliders, hang gliding, parachuting, airplanes, jets, or anything else that can sustain flight.

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Algorithmic trading

Algorithmic trading is a method of executing a large order (too large to fill all at once) using automated pre-programmed trading instructions accounting for variables such as time, price, and volume to send small slices of the order (child orders) out to the market over time.

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Analog-to-digital converter

In electronics, an analog-to-digital converter (ADC, A/D, or A-to-D) is a system that converts an analog signal, such as a sound picked up by a microphone or light entering a digital camera, into a digital signal.

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Bandwidth-delay product

In data communications, bandwidth-delay product is the product of a data link's capacity (in bits per second) and its round-trip delay time (in seconds).

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Bufferbloat

Bufferbloat is a cause of high latency in packet-switched networks caused by excess buffering of packets. Bufferbloat can also cause packet delay variation (also known as jitter), as well as reduce the overall network throughput.

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Classical mechanics

Classical mechanics describes the motion of macroscopic objects, from projectiles to parts of machinery, and astronomical objects, such as spacecraft, planets, stars and galaxies.

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Communications satellite

A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth.

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Data buffer

In computer science, a data buffer (or just buffer) is a region of a physical memory storage used to temporarily store data while it is being moved from one place to another.

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Digital signal processing

Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations.

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Digital-to-analog converter

In electronics, a digital-to-analog converter (DAC, D/A, D2A, or D-to-A) is a system that converts a digital signal into an analog signal.

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Direct memory access

Direct memory access (DMA) is a feature of computer systems that allows certain hardware subsystems to access main system memory (Random-access memory), independent of the central processing unit (CPU).

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Disk storage

Disk storage (also sometimes called drive storage) is a general category of storage mechanisms where data is recorded by various electronic, magnetic, optical, or mechanical changes to a surface layer of one or more rotating disks.

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Electronics

Electronics is the discipline dealing with the development and application of devices and systems involving the flow of electrons in a vacuum, in gaseous media, and in semiconductors.

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End-to-end delay

End-to-end delay or one-way delay (OWD) refers to the time taken for a packet to be transmitted across a network from source to destination.

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Feedback

Feedback occurs when outputs of a system are routed back as inputs as part of a chain of cause-and-effect that forms a circuit or loop.

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Hard disk drive performance characteristics

Higher performance in hard disk drives comes from devices which have better performance characteristics.

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Hping

hping is a free packet generator and analyzer for the TCP/IP protocol distributed by Salvatore Sanfilippo (also known as Antirez).

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Internet Control Message Protocol

The Internet Control Message Protocol (ICMP) is a supporting protocol in the Internet protocol suite.

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Internet service provider

An Internet service provider (ISP) is an organization that provides services for accessing, using, or participating in the Internet.

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Interrupt

In system programming, an interrupt is a signal to the processor emitted by hardware or software indicating an event that needs immediate attention.

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Interrupt latency

In computing, interrupt latency is the time that elapses from when an interrupt is generated to when the source of the interrupt is serviced.

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Iperf

Iperf is a widely used tool for network performance measurement and tuning.

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Jitter

In electronics and telecommunications, jitter is the deviation from true periodicity of a presumably periodic signal, often in relation to a reference clock signal.

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Lag

In online gaming, lag is a noticeable delay between the action of players and the reaction of the server in a video game.

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Lead time

A lead time is the latency between the initiation and execution of a process.

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Linux

Linux is a family of free and open-source software operating systems built around the Linux kernel.

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Linux kernel

The Linux kernel is an open-source monolithic Unix-like computer operating system kernel.

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List of Microsoft operating systems

The following is a list of Microsoft written and published operating systems.

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London

London is the capital and most populous city of England and the United Kingdom.

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Low Earth orbit

A low Earth orbit (LEO) is an orbit around Earth with an altitude of or less, and with an orbital period of between about 84 and 127 minutes.

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Low latency (capital markets)

In capital markets, low latency is the use of algorithmic trading to react to market events faster than the competition to increase profitability of trades.

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M. Brian Blake

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Memory latency

In computing, memory latency is the time (the latency) between initiating a request for a byte or word in memory until it is retrieved by a processor.

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Mental chronometry

Mental chronometry is the use of response time in perceptual-motor tasks to infer the content, duration, and temporal sequencing of cognitive operations.

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Microsecond

A microsecond is an SI unit of time equal to one millionth (0.000001 or 10−6 or 1/1,000,000) of a second.

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Millisecond

A millisecond (from milli- and second; symbol: ms) is a thousandth (0.001 or 10−3 or 1/1000) of a second.

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Netperf

Netperf is a software application that provides network bandwidth testing between two hosts on a network.

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Network performance

Network performance refers to measures of service quality of a network as seen by the customer.

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New York City

The City of New York, often called New York City (NYC) or simply New York, is the most populous city in the United States.

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New York Stock Exchange

The New York Stock Exchange (abbreviated as NYSE, and nicknamed "The Big Board"), is an American stock exchange located at 11 Wall Street, Lower Manhattan, New York City, New York.

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News presenter

A news presenter – also known as a newsreader, newscaster (short for "news broadcaster"), anchorman or anchorwoman, news anchor or simply an anchor – is a person who presents news during a news program on the television, on the radio or on the Internet.

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Ntoskrnl.exe

ntoskrnl.exe (short for Windows NT operating system kernel), also known as kernel image, provides the kernel and executive layers of the Windows NT kernel space, and is responsible for various system services such as hardware virtualization, process and memory management, thus making it a fundamental part of the system.

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Online game

An online game is a video game that is either partially or primarily played through the Internet or any other computer network available.

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Operating system

An operating system (OS) is system software that manages computer hardware and software resources and provides common services for computer programs.

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Packet switching

Packet switching is a method of grouping data which is transmitted over a digital network into packets which are made of a header and a payload.

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Performance engineering

Performance engineering encompasses the techniques applied during a systems development life cycle to ensure the non-functional requirements for performance (such as throughput, latency, or memory usage) will be met.

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Ping (networking utility)

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network.

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Polling (computer science)

Polling, or polled operation, in computer science, refers to actively sampling the status of an external device by a client program as a synchronous activity.

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Process (computing)

In computing, a process is an instance of a computer program that is being executed.

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Processing delay

In a network based on packet switching, processing delay is the time it takes routers to process the packet header.

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Queuing delay

In telecommunication and computer engineering, the queuing delay or queueing delay is the time a job waits in a queue until it can be executed.

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Real-time operating system

A real-time operating system (RTOS) is an operating system (OS) intended to serve real-time applications that process data as it comes in, typically without buffer delays.

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Refractive index

In optics, the refractive index or index of refraction of a material is a dimensionless number that describes how light propagates through that medium.

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Response time (technology)

In technology, response time is the time a system or functional unit takes to react to a given input.

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Responsiveness

Responsiveness as a concept of computer science refers to the specific ability of a system or functional unit to complete assigned tasks within a given time.

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Round-trip delay time

In telecommunications, the round-trip delay time (RTD) or round-trip time (RTT) is the length of time it takes for a signal to be sent plus the length of time it takes for an acknowledgement of that signal to be received.

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Router (computing)

A router is a networking device that forwards data packets between computer networks.

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Satellite constellation

A satellite constellation is a group of artificial satellites working in concert.

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Simulator sickness

Simulator sickness is a subset of motion sickness that is typically experienced by pilots who undergo training for extended periods of time in flight simulators.

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Software

Computer software, or simply software, is a generic term that refers to a collection of data or computer instructions that tell the computer how to work, in contrast to the physical hardware from which the system is built, that actually performs the work.

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Speed of light

The speed of light in vacuum, commonly denoted, is a universal physical constant important in many areas of physics.

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Speed of sound

The speed of sound is the distance travelled per unit time by a sound wave as it propagates through an elastic medium.

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Throughput

In general terms, throughput is the maximum rate of production or the maximum rate at which something can be processed.

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Traffic shaping

Traffic shaping is a bandwidth management technique used on computer networks which delays some or all datagrams to bring them into compliance with a desired traffic profile.

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Transmission Control Protocol

The Transmission Control Protocol (TCP) is one of the main protocols of the Internet protocol suite.

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Transmission time

In telecommunication networks, the transmission time, is the amount of time from the beginning until the end of a message transmission.

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Vehicle dynamics

For vehicles such as cars, vehicle dynamics is the study of how the vehicle will react to driver inputs on a given road.

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Workflow

A workflow consists of an orchestrated and repeatable pattern of business activity enabled by the systematic organization of resources into processes that transform materials, provide services, or process information.

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Communication latency, Low latency, Low-latency, Motion To Photon Latency, Network Latency, Transit delay.

References

[1] https://en.wikipedia.org/wiki/Latency_(engineering)

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