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Computing Power
In computing, computer performance is the amount of useful work accomplished by a computer system. Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. When it comes to high computer performance, one or more of the following factors might be involved: * Short Response time (technology), response time for a given piece of work. * High throughput (rate of processing work). * Low utilization of computing resource(s). ** Fast (or highly compact) data compression and decompression. * High availability of the computing system or application. * High Bandwidth (computing), bandwidth. * Short data transmission time. Technical and non-technical definitions The performance of any computer system can be evaluated in measurable, technical terms, using one or more of the metrics listed above. This way the performance can be * Compared relative to other systems or the same system before/after chan ...
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Computing
Computing is any goal-oriented activity requiring, benefiting from, or creating computing machinery. It includes the study and experimentation of algorithmic processes and development of both computer hardware , hardware and software. It has scientific, engineering, mathematical, technological and social aspects. Major computing disciplines include computer engineering, computer science, cybersecurity, data science, information systems, information technology and software engineering. The term "computing" is also synonymous with counting and calculating. In earlier times, it was used in reference to the action performed by Mechanical computer, mechanical computing machines, and before that, to human computers. History The history of computing is longer than the history of computing hardware and computer, modern computing technology and includes the history of methods intended for pen and paper or for chalk and slate, with or without the aid of tables. Computing is intimat ...
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Central Processing Unit
A central processing unit (CPU), also called a central processor, main processor or just processor, is the electronic circuit 200px, A circuit built on a printed circuit board (PCB). An electronic circuit is composed of individual electronic component An electronic component is any basic discrete device or physical entity in an electronic system used to affect ele ...ry that executes instructions Instruction or instructions may refer to: Computing * Instruction, one operation of a processor within a computer architecture instruction set * Computer program, a collection of instructions Music * Instruction (band), a 2002 rock band from New Y ... comprising a computer program In imperative programming, a computer program is a sequence of instructions in a programming language that a computer can execute or interpret. In declarative programming, a ''computer program'' is a Set (mathematics), set of instructions. A comp .... The CPU performs basic arithmetic Arithmeti ...
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Performance Per Watt
In computing Computing is any goal-oriented activity requiring, benefiting from, or creating computing machinery. It includes the study and experimentation of algorithmic processes and development of both computer hardware , hardware and software. It has sci ..., performance per watt is a measure of the energy efficiency Energy efficiency may refer to: * Energy efficiency (physics), the ratio between the useful output and input of an energy conversion process ** Electrical efficiency, useful power output per electrical power consumed ** Mechanical efficiency, a rat ... of a particular computer architecture In computer engineering, computer architecture is a set of rules and methods that describe the functionality, organization, and implementation of computer systems. The architecture of a system refers to its structure in terms of separately specifi ... or computer hardware Computer hardware includes the physical parts of a computer, such as the computer case, case, cent ...
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Scalability
Scalability is the property of a system to handle a growing amount of work by adding resources to the system. In an economic An economy (; ) is an area of the production Production may be: Economics and business * Production (economics) * Production, the act of manufacturing goods * Production, in the outline of industrial organization, the act of making products ... context, a scalable business model implies that a company can increase sales given increased resources. For example, a package delivery system is scalable because more packages can be delivered by adding more delivery vehicles. However, if all packages had to first pass through a single warehouse for sorting, the system would not be as scalable, because one warehouse can handle only a limited number of packages. In computing, scalability is a characteristic of computers, networks, algorithm In and , an algorithm () is a finite sequence of , computer-implementable instructions, typically to solve a ...
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Relative Efficiency
In the comparison of various statistical procedures, efficiency is a measure of quality of an estimator In statistics, an estimator is a rule for calculating an estimate of a given quantity based on Sample (statistics), observed data: thus the rule (the estimator), the quantity of interest (the estimand) and its result (the estimate) are distinguishe ..., of an experimental design The design of experiments (DOE, DOX, or experimental design) is the design of any task that aims to describe and explain the variation of information under conditions that are hypothesized to reflect the variation. The term is generally associa ..., or of a hypothesis testing A statistical hypothesis is a hypothesis A hypothesis (plural hypotheses) is a proposed explanation for a phenomenon. For a hypothesis to be a scientific hypothesis, the scientific method The scientific method is an Empirical evidence ... procedure. Essentially, a more efficient estimator, experiment, or test need ...
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Service Time
Service may refer to: Activities :''(See the Religion section for religious activities)'' * Administrative service, a required part of the workload of Faculty (academic staff), university faculty * Civil service, the body of employees of a government * Community service, volunteer service for the benefit of a community or a punishment that may be imposed by a court * Fan service, a Japanese term referring to something which is specifically designed to entertain fans * Military service, serving in a country's armed forces * Feudal service, see Feudal land tenure in England * Public service, services carried out with the aim of providing a public good * Selfless service, a service which is performed without any expectation of result or award Arts, entertainment, and media * Service (album), ''Service'' (album), a 1983 album by Yellow Magic Orchestra * Service (film), ''Service'' (film), a 2008 film * Service (play), ''Service'' (play), a 1932 play by British writer Dodie Smith * Ser ...
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Completion Time
Completion may refer to: *Completion (American football) *Completion (oil and gas wells) * ''Completion'', a 2004 Bodychoke#Studio albums, studio album by Bodychoke * One of the landmarks in conveyancing, transfer of the title of property from one person to another Mathematics *Completion (metric space), constructing the smallest complete metric space containing a given space * Construction of a complete measure space *Dedekind–MacNeille completion, constructing the smallest complete lattice containing a given partial order *Completion (algebra) Computer science *Autocomplete, predicting a phrase the user is about to type in *Knuth–Bendix completion algorithm, transforming an equation set into a confluent term rewriting system See also

* Completeness (other) {{disambiguation ...
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Latency (engineering)
Latency, from a general point of view, is a time delay between the cause and the effect of some physical change in the system A system is a group of Interaction, interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purp ... being observed. Lag In online gaming, lag is a noticeable delay ( latency) between the action of players (input) and the reaction of the server supporting the game with separate sliding drawer, from 1390–1353 BC, made of glazed faience, dimensions: 5.5 & ..., as it is known in gaming circles, refers to the latency between the input to a simulation and the visual or auditory response, often occurring because of network delay Network delay is a design and performance characteristic of a telecommunications network A telecommunications network is a group of nodes In general, a node is a loc ...
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Channel Capacity
Channel capacity, in electrical engineering Electrical engineering is an engineering discipline concerned with the study, design, and application of equipment, devices, and systems which use electricity, electronics The field of electronics is a branch of physics and electrical enginee ..., computer science Computer science deals with the theoretical foundations of information, algorithms and the architectures of its computation as well as practical techniques for their application. Computer science is the study of computation, automation, a ..., and information theory Information theory is the scientific study of the quantification (science), quantification, computer data storage, storage, and telecommunication, communication of Digital data, digital information. The field was fundamentally established by the ..., is the tight upper bound on the rate at which information Information is processed, organised and structured data Data (; ) are indiv ...
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Availability
In reliability engineering Reliability engineering is a sub-discipline of systems engineering that emphasizes the ability of equipment to function without failure. Reliability describes the ability of a system or component to function under stated conditions for a specifie ..., the term availability has the following meanings: * The degree to which a system A system is a group of Interaction, interacting or interrelated elements that act according to a set of rules to form a unified whole. A system, surrounded and influenced by its environment, is described by its boundaries, structure and purp ..., subsystem A system is a group of interacting Interaction is a kind of action that occurs as two or more objects have an effect upon one another. The idea of a two-way effect is essential in the concept of interaction, as opposed to a one-way causal ... or equipment is in a specified operable and committable state at the start of a mission, when the mission is call ...
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Software Metric
A software metric is a standard of measure of a degree to which a software system or process possesses some property. Even if a metric is not a measurement (metrics are functions, while measurements are the numbers obtained by the application of metrics), often the two terms are used as synonyms. Since quantitative measurements are essential in all sciences, there is a continuous effort by computer science Computer science deals with the theoretical foundations of information, algorithms and the architectures of its computation as well as practical techniques for their application. Computer science is the study of computation, automation, a ... practitioners and theoreticians to bring similar approaches to software development. The goal is obtaining objective, reproducible and quantifiable measurements, which may have numerous valuable applications in schedule and budget planning, cost estimation, quality assurance, testing, software debugging, software performance optimiz ...
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Performance Engineering
Performance engineering encompasses the techniques applied during a systems development life cycle In systems engineering Systems engineering is an field of and that focuses on how to design, integrate, and manage s over their s. At its core, systems engineering utilizes principles to organize this body of knowledge. The individual ou ... to ensure the non-functional requirement In systems engineering Systems engineering is an field of and that focuses on how to design, integrate, and manage s over their s. At its core, systems engineering utilizes principles to organize this body of knowledge. The individual outc ...s for performance (such as throughput In general terms, throughput is the rate of production or the rate at which something is processed. When used in the context of communication networks, such as Ethernet Ethernet () is a family of wired ing technologies commonly used in s ..., latency Latency or latent may refer to: Science and tech ...
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