Question

What is computer peformance? Why is computer performance difficult to define? Why is computer performance difficult to measure? In what ways have the performance indicators or performance metrics changed over the years? Why is dlock speed a very poor indication of paformance? What is the meaning of MIPS when it is used to refer to computer performance? Why is MIPS a poor indication of performance generally? When would MIPS be a good indicator of performance? In the area of computer performance, what is a benchmark? What is the difference between kemel, synthetic, and real benchmarks? Why is it more difficult to measure the performance of a computer to be used by a friend or relative than a computer to be used by a mudear scientist? What is Amdahl's law and what does it teach What is the difference between latency and throughpur?

Answer 1

Що таке комп'ютерна ефективність? Чому продуктів комп'ютера важко визначити?

Answer 2

Computer Performance

Computer performance refers to how well a computer system executes tasks and runs programs. It encompasses various aspects such as processing speed, memory capacity, input/output capabilities, and overall responsiveness.

Difficulty in Defining Computer Performance

Computer performance is difficult to define because it can mean different things to different people based on their specific needs and expectations. For example, a gamer might prioritize graphics processing and frame rates, while a business user might prioritize multitasking and data processing capabilities.

Difficulty in Measuring Computer Performance

Measuring computer performance is difficult due to the complexity of modern computer systems, which involve multiple components and interactions. Additionally, the diversity of tasks and applications makes it challenging to create a universal metric for performance.

Evolution of Performance Indicators

Over the years, performance indicators or metrics have evolved to encompass a broader range of factors, including not just raw processing power but also energy efficiency, multitasking capabilities, and real-world application performance.

Drawbacks of Clock Speed as an Indicator

Clock speed is a poor indication of performance because it only measures the speed at which a processor can execute instructions. It does not account for the efficiency of the processor's architecture or its ability to handle multiple tasks simultaneously.

Meaning of MIPS and Its Limitations

MIPS (Million Instructions Per Second) is a measure of the raw processing power of a computer. However, it is a poor indication of overall performance because it does not consider the complexity of instructions or the efficiency of the processor in handling real-world tasks. MIPS can be a good indicator of performance when comparing similar tasks on similar architectures.

Understanding Benchmarks

In the area of computer performance, a benchmark is a standardized test or set of tests designed to measure the performance of computer hardware or software. Benchmarks provide a way to compare different systems under controlled conditions.

Types of Benchmarks

- Kernel benchmarks focus on specific components or subsystems of a computer system. - Synthetic benchmarks simulate specific workloads or tasks to measure performance. - Real benchmarks use actual applications or tasks to evaluate performance under real-world conditions.

Difficulty in Measuring Performance for Different Users

It is more difficult to measure the performance of a computer for a friend or relative than for a computer scientist because the former may have diverse and subjective usage requirements, making it challenging to predict their specific needs and expectations.

Amdahl's Law

Amdahl's law is a principle in computer architecture that states the potential speedup of a program using multiple processors in parallel computing. It teaches that the overall speedup is limited by the fraction of the program that cannot be parallelized.

Difference Between Latency and Throughput

- Latency refers to the time it takes for a single piece of data to travel from one point to another in a system. - Throughput refers to the rate at which data is successfully transferred through a system over a given period of time.

These concepts are crucial in understanding the responsiveness and efficiency of computer systems, especially in networking and storage environments.