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Amount of useful work accomplished by a computer
computing, computer performance is the amount of useful work accomplished by a computer system. Outside specific contexts, computer performance is estimated
Computer_performance
Type of computer with high performance
A supercomputer is a type of computer with a high level of performance as compared to a general-purpose computer. Supercomputers play an important role
Supercomputer
The Age of Spiritual Machines: When Computers Exceed Human Intelligence 33.86 × 1015: Tianhe-2's LINPACK performance, June 2013 36.8 × 1015: 2001 estimate
Computer performance by orders of magnitude
Computer_performance_by_orders_of_magnitude
Set of rules describing computer system
systems. Computer architecture also considers tradeoffs between performance, cost, power, reliability, and security. The first documented computer architecture
Computer_architecture
Desktop or laptop computer specialized for video games
personal computers by using high-performance GPUs, or graphics cards, a high core-count CPU with higher raw performance, and higher-performance RAM. Gaming
Gaming_computer
Programmable machine that processes data
electronic computers can perform generic sets of operations known as programs, which enable computers to perform a wide range of tasks. The term computer system
Computer
Computer energy efficiency
In computing, performance per watt is a measure of the energy efficiency of a particular computer architecture or computer hardware. Literally, it measures
Performance_per_watt
Testing performance under a given workload
resource usage. Performance testing, a subset of performance engineering, is a computer science practice which strives to build performance standards into
Software_performance_testing
Programming paradigm in which many processes are executed simultaneously
and software, and high performance computing. Frequency scaling was the dominant reason for improvements in computer performance from the mid-1980s until
Parallel_computing
Measure of computer performance
point operations per second (FLOPS, flops or flop/s) is a measure of computer performance or compute in computing, useful in fields of scientific computations
Floating point operations per second
Floating_point_operations_per_second
Scientist specializing in computer science
theory, and formal methods Computer systems – including computer architecture and computer engineering, computer performance analysis, concurrency, and
Computer_scientist
Process of mathematical modelling, performed on a computer
and to estimate the performance of systems too complex for analytical solutions. Computer simulations are realized by running computer programs that can
Computer_simulation
Central computer component that executes instructions
processor, is the primary processor in a given computer. Its electronic circuitry executes instructions of a computer program, such as arithmetic, logic, controlling
Central_processing_unit
Physical components of a computer
tries to fetch both at the same time—often throttling the system's performance. Computer architecture involves balancing various goals, such as cost, speed
Computer_hardware
Overview of and topical guide to computers
Systems – Mainframe computer – Super computer – Midrange computer – Personal computer – Desktop computer – Microcomputer – Mobile computer and mobile device
Outline_of_computers
American non-profit corporation
efforts by prominent workstation and high-performance computing vendors Apollo Computer, Hewlett-Packard, MIPS Computer Systems and Sun Microsystems to more
Standard Performance Evaluation Corporation
Standard_Performance_Evaluation_Corporation
Average number of instructions executed for each clock cycle
In computer architecture, instructions per cycle (IPC), commonly called instructions per clock, is one aspect of a processor's performance: the average
Instructions_per_cycle
fastest computers and includes computers and supercomputers which were considered the fastest in the world at the time they were built. a. ^ Performance figures
List_of_fastest_computers
Encompasses the techniques applied during a systems development life cycle
testing Web performance A Performance Process Maturity Model The Every Computer Performance Book Exploring UML for Performance Engineering Performance and Scalability
Performance_engineering
Type of computer benchmarking tool
The VAX Unit of Performance, or VUP for short, is an obsolete measurement of computer performance used by Digital Equipment Corporation (DEC). 1 VUP was
VAX_Unit_of_Performance
Figure of merit developed by AMD, Cyrix, IBM Microelectronics and SGS-Thomson
The PR (performance rating, P-rating, or Pentium rating) system was a figure of merit developed by AMD, Cyrix, IBM Microelectronics and SGS-Thomson in
Performance_Rating
Field of artificial intelligence around Go computer programs
still exploit these programs' weaknesses and win consistently, but computer performance had advanced past the intermediate (single-digit kyu) level. The
Computer_Go
Adage on computer performance
Wirth's law is an adage on computer performance which states that software is getting slower more rapidly than hardware is becoming faster. The adage is
Wirth's_law
Computer program whose performance is heavily dependent on the speed of the CPU
rather than single-core performance. The concept of CPU-bounding was developed during early computers, when data paths between computer components were simpler
CPU-bound
Computing with supercomputers and clusters
High-performance computing (HPC) is the use of supercomputers and computer clusters to solve advanced problems. HPC integrates systems administration
High-performance_computing
Set of computers configured in a distributed computing system
on each computer, or different hardware. Clusters are usually deployed to improve performance and availability over that of a single computer, while typically
Computer_cluster
Microsoft Windows task manager application
included with Microsoft Windows systems. It provides information about computer performance and running software, including names of running processes, CPU and
Task_Manager_(Windows)
Usability inspection method
A heuristic evaluation is a usability inspection method for computer software that helps to identify usability problems in the user interface design. It
Heuristic_evaluation
Network that allows computers to share resources and communicate with each other
In computer science, computer engineering, and telecommunications, a network is a group of communicating computers and peripherals called hosts, which
Computer_network
Program that simulates the execution of computer architecture
to unobtainable hardware. Increasing the precision and volume of computer performance data. Introducing abilities that are not normally possible on real
Computer architecture simulator
Computer_architecture_simulator
Observation on computer performance
stated as Computer performance increases as the square of the cost. If computer A costs twice as much as computer B, you should expect computer A to be
Grosch's_law
Standardized performance evaluation
is the act of running a computer program, a set of programs, or other operations, in order to assess the relative performance of an object, normally by
Benchmark_(computing)
Array that replaces runtime computation with a simpler array indexing operation
improve performance for data items that rarely, if ever, change. Lookup tables were one of the earliest functionalities implemented in computer spreadsheets
Lookup_table
Measure of a computer's processing speed
benchmarks such as Dhrystone are now generally used to estimate computer performance in commonly used applications, and raw IPS has fallen into disuse
Instructions_per_second
Type of computer benchmark
There are a variety of software performance tests for web browsers, which measure rendering and animation, DOM transformations, string operations, mathematical
List of web browser performance tests
List_of_web_browser_performance_tests
Worldwide non-profit organization
are primarily concerned with evaluating and maximizing the performance of existing computer systems and networks, and with capacity management, in which
Computer_Measurement_Group
Property of an algorithm
way of getting higher performance might be to just buy a faster computer, provided it is compatible with an existing computer. There are many ways in
Algorithmic_efficiency
Computer performance metric
In computer science, Average Memory Access Time (AMAT) is a common metric to analyze computer memory system performance. AMAT uses hit time, miss penalty
Average_memory_access_time
System monitor tool for the AIX and Linux operating systems
is a computer performance system monitor tool for the AIX and Linux operating systems. The nmon tool has two modes a) displays the performance stats
Nmon
Number of machine code instructions required to execute a section of a computer program
In computer performance, the instruction path length is the number of machine code instructions required to execute a section of a computer program. The
Instruction_path_length
Time used by a computer
X. (2012). Performance Evaluation, Prediction and Visualization of Parallel Systems. The International Series on Asian Studies in Computer and Information
CPU_time
American computer scientist
computer system performance. He was the program chair of an ACM SIGMETRICS conference. He developed a computer performance model for a major computer
Peter_Chen
benchmarking metric of quantum computers developed by IBM in 2021. While Quantum volume is more indicative of a qubit's performance and quality, CLOPS is a measure
Circuit Layer Operations per Second
Circuit_Layer_Operations_per_Second
Measure of supercomputer performance
Floating point operations per second (FLOPS) are one measure of computer performance. FLOPS can be recorded in different measures of precision, however
Zettascale_computing
Computer networking optimization problem
The C10k problem was the problem of optimizing computer networking stacks to handle a large number of clients at the same time. The name C10k is a numeronym
C10k_problem
Measure of a systems floating point architecture
cycle it can perform. The actual performance will always be lower than the peak performance. The performance of a computer is a complex issue that depends
LINPACK_benchmarks
Problems with central processing unit design
High-Performance Embedded-Microprocessor". VLSI Design. 2013: 1–10. doi:10.1155/2013/425105. Patterson, David; Hennessy, John (2009). Computer Organization
Hazard (computer architecture)
Hazard_(computer_architecture)
Computer program whose performance is heavily dependent on time spent waiting on I/O
In computer science, I/O bound refers to a condition in which the time it takes to complete a computation is determined principally by the period spent
I/O_bound
1982 Japanese initiative to develop advanced computers
Inference computer technologies for knowledge processing Computer technologies to process large-scale data bases and knowledge bases High-performance workstations
Fifth Generation Computer Systems
Fifth_Generation_Computer_Systems
Observation on the growth of integrated circuit capacity
House deduced that computer chip performance would roughly double every 18 months. Also due to Dennard scaling, this increased performance would not be accompanied
Moore's_law
Study of computation
Fundamental areas of computer science Computer science is the study of computation, information, and automation, together with their associated phenomena
Computer_science
Guidance and navigation computer used in Apollo spacecraft
first computer based on silicon integrated circuits (ICs). The computer's performance was comparable to the first generation of home computers from the
Apollo_Guidance_Computer
In computer programming, housekeeping can refer to either a standard entry or exit routine appended to a user-written block of code (such as a subroutine
Housekeeping_(computing)
American computer scientist
Communications. He is currently the chair of the IFIP Working Group 7.3 on computer performance measurement, modeling, and analysis. He has also served on numerous
Don Towsley (computer scientist)
Don_Towsley_(computer_scientist)
Computer intended for use by an individual person
A personal computer (PC), or simply computer, is a computer designed for personal use. It is typically used for tasks such as word processing, web browsing
Personal_computer
computer system monitor tool used to collect and show operating system storage input and output statistics. It is often used to identify performance issues
Iostat
Informal measure of rate of computer data operations
In computer technology, transfers per second, megatransfers per second (MT/s), or gigatransfers per second (GT/s) specify the number of data transfer operations
Transfers_per_second
multiprocessor performance, which means that certain memory access patterns place a ceiling on parallelism (which manycore approaches seek to break). Computer memory
Memory_access_pattern
Computer-based technologies
Information technology (IT) is the study or use of computers, telecommunication systems and other devices to create, process, store, retrieve and transmit
Information_technology
Usage of mere clock rate to compare performance of microprocessors
because performance varies depending on the type of task. A benchmark is a more thorough way of measuring and comparing computer performance. The myth
Megahertz_myth
Computer systems capable of one exaFLOPS
(exaFLOPS)"; it is a measure of supercomputer performance. Exascale computing is a significant achievement in computer engineering: primarily, it allows improved
Exascale_computing
Aspect of CPU performance
introduction to computer performance measurement for those readers interested in the topic. Patterson, David A.; Hennessy, John L. (1994). Computer Organization
Cycles_per_instruction
Computer systems capable of one petaFLOPS
Floating point operations per second (FLOPS) is one measure of computer performance (including supercomputers). FLOPS can be recorded in different measures
Petascale_computing
Annual academic conference on computer architecture
International Symposium on High-Performance Computer Architecture (HPCA) is an annual academic conference on computer architecture. It was first held
International Symposium on High-Performance Computer Architecture
International_Symposium_on_High-Performance_Computer_Architecture
Topics referred to by the same term
Performance analysis may refer to: Performance attribution, a technique for analysing performance of funds in finance Profiling (computer programming)
Performance_analysis
Improving the efficiency of software
In computer science, program optimization, code optimization, or software optimization is the process of modifying a software system to make some aspect
Program_optimization
Australian computer scientist and physicist
15 August 1950) is a computer information systems researcher best known internationally for developing the open-source performance modeling software Pretty
Neil_J._Gunther
power consumed in a computer system, and the rate at which useful work is done (its utilization, which is one measure of performance). If the overall power
Energy_proportional_computing
Timeline of microprocessors
the 1991 IEEE International Conference on Computer Design on VLSI in Computer & Processors. IEEE Computer Society. pp. 200–4. ISBN 0-8186-3110-4. Archived
Microprocessor_chronology
Symposium on High-Performance Computer Architecture ISSCC — International Solid-State Circuits Conference ISCA - International Symposium on Computer Architecture
List of computer science conferences
List_of_computer_science_conferences
Measure of computer performance
Giga-updates per second (GUPS) is a measure of computer performance. GUPS is a measurement of how frequently a computer can issue updates to randomly generated
Giga-updates_per_second
Large and powerful computer
A mainframe computer, informally called a mainframe, maxicomputer, or big iron, is a computer used primarily by large organizations for critical applications
Mainframe_computer
Computer Performance Evaluation and Simulation Center at the General Services Administration (GSA) with the goal of providing expertise in computer performance
Federal Systems Integration and Management Center
Federal_Systems_Integration_and_Management_Center
Engineering discipline specializing in the design of computer hardware
electronics engineering and computer science. Computer engineering may be referred to as Electrical and Computer Engineering or Computer Science and Engineering
Computer_engineering
American instructor, public speaker, and writer
Hewlett-Packard, and specialized in the analysis and mathematical modelling of computer performance. Allen earned a Ph.D. in mathematics at UCLA in 1962 under Angus
Arnold_Allen_(mathematician)
Component that stores information
actively processed, computer memory serves as a mass storage cache and write buffer to improve both reading and writing performance. Operating systems
Computer_memory
Degradation or loss of the use of software over time
of quality between copies Software bloat – Situation of degraded computer performance Software brittleness – Description of how difficult software is to
Software_rot
Form of computer memory
Random-access memory (RAM; /ræm/) is a form of electronic computer memory that can be read and changed in any order, typically used to store working data
Random-access_memory
Benchmark used to compare the performance of OLTP systems
1995. It has undergone a number of changes to keep it relevant as computer performance grew by several orders of magnitude, with the current version as
TPC-C
Inefficient use of storage space
so that storage space, such as computer memory or a hard drive, is used inefficiently, reducing capacity or performance and often both. The exact consequences
Fragmentation_(computing)
Playing of Arimaa by computer programs
Computer Arimaa refers to the playing of the board game Arimaa by computer programs. In 2002, Indian-American computer engineer Omar Syed published the
Computer_Arimaa
Art of creating moving images using computers
moving images, while computer animation only refers to moving images. Modern computer animation usually uses 3D computer graphics. Computer animation is a digital
Computer_animation
This glossary of computer science is a list of definitions of terms and concepts used in computer science, its sub-disciplines, and related fields, including
Glossary_of_computer_science
service units (MSU) is a measurement of the amount of processing work a computer can perform in one hour. The term is most commonly associated with IBM
Million_service_units
Former government agency in the UK
Central Computer and Telecommunications Agency (CCTA), formerly the Central Computer Agency (CCA), was a UK government agency providing computer and telecoms
Central Computer and Telecommunications Agency
Central_Computer_and_Telecommunications_Agency
Software that manages computer hardware resources
is system software that manages computer hardware and software resources, and provides common services for computer programs. Time-sharing operating
Operating_system
Topics referred to by the same term
Performance engineering Performance improvement Performance management Performance measurement Computer performance Performance analysis Performance tuning
Performance_(disambiguation)
American electrical engineer
Joel S. Emer (born March 2, 1954) is a pioneer in computer performance analysis techniques and a microprocessor architect. He is currently a researcher
Joel_Emer
This is a list of computer scientists, people who do work in computer science, in particular researchers and authors. Some persons notable as programmers
List_of_computer_scientists
Supercomputer manufactured by Cray Research
the first Cray multi-processing computer. In 1985, the very advanced Cray-2, capable of 1.9 GFLOPS peak performance, succeeded the first two models but
Cray-1
Computer hardware technology that uses quantum mechanics
A quantum computer is a computer that represents and processes information using quantum states. Quantum computations exploit phenomena such as superposition
Quantum_computing
American computer music pioneer (1926–2011)
following excerpt from "Horizons in Computer Music", March 8–9, 1997, Indiana University:[citation needed] Computer performance of music was born in 1957 when
Max_Mathews
Supercomputer in Kobe, Japan
and computer science at the University of Tennessee, the K computer's performance equaled "one million linked desktop computers". The computer's annual
K_computer
High-end single-user computer
Graphics, Apollo Computer, DEC, HP, NeXT, and IBM beginning in the 1980s. At the peak of their popularity, workstations offered higher performance specifications
Workstation
Overview of and topical guide to computer engineering
engineering Computer architecture Microarchitecture Multiprocessing Computer performance by orders of magnitude Human–computer interaction Computer network
Outline of computer engineering
Outline_of_computer_engineering
Software library for microprocessor metrics
In computer science, Performance Application Programming Interface (PAPI) is a portable interface (in the form of a library) to hardware performance counters
Performance Application Programming Interface
Performance_Application_Programming_Interface
Measurement that evaluates the success of an organization
A performance indicator or key performance indicator (KPI) is a type of performance measurement used to evaluate the success of an organization, activity
Performance_indicator
and imagining of what computers could do. ~ Items marked with a tilde are circa dates. Biography portal Lists portal Computer Pioneer Award IEEE John
List of pioneers in computer science
List_of_pioneers_in_computer_science
Electronics devices with low power consumption
consume less power than their desktop counterparts, at the expense of computer performance. The earliest attempts to reduce the amount of power required by
Low-power_electronics
Digital Performance refers to the use of computers as an interface between a creator, consumer of images, and sounds in a wide range of artistic applications
Digital_performance
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