Laboratory work №1

THE CALCULATION OF THE METRICS OF THE COMPUTER SYSTEM PERFORMANCE: SPEED, EFFICIENCY, ENERGY COSTS, AMDAHL'S LAW, CPU TIME

1. Computer performance: speed, efficiency, energy costs

2. Amdahl's Law

3. Cpu time

Computer performance

Performance (speed) PC - the ability of computer to handle large amounts of information. It is determinedby CPU’s speed, volume of RAM and by speed access thereto (for example, Pentium III processes information at the rate of hundreds of millions of operations per second)

Details are responsible for the performance

The most important part is the processor of the computer and then go on the importance strips of memory and need to know that it is not the amount, and the rate at which data is downloaded from the screw and are given to the CPU processing is more important. Press CTRL + ALT + DEL and look at the performance as Mb in the paging file is located and think unless the volume is important?

Speed of Computer

QUICK ANSWER

The overall speed of a computer depends on the performance of its individual components, chiefly the processor, memory and video card. These computer parts should be upgraded together to boost the computer's speed, as partial upgrades may only introduce negligible improvements.

Full answer

These three components each play a different role in performance. The processor, which is the central part of any computer, is responsible for executing instructions. Its performance is measured by its clock speed and the number of cores. The size and speed of the system memory and storage disk affect how fast the computer can read, write and transfer data. The video card helps render the graphics displayed on the screen. More powerful cards are able to support higher screen resolutions.

CPU (Central Processing Unit) - a central processor computer (his brain) is physically large integrated circuit (IC), in which various components functional presented (not only the processor). In a multiprocessor system CPU functions are distributed across multiple processors, one of which is considered the main

Cpu Time Definition - What does cpu Time mean?

CPU time is the exact amount of time that the CPU has spent processing data for a specific program or process. Programs and applications normally do not use the processor 100% of the time that they are running; some of that time is spent on I/O operations and fetching and storing data on the RAM or storage device. The CPU time is only when the program actually uses the CPU to perform tasks such as doing arithmetic and logic operations. CPU time is also known as processing time.

Techopedia explains cpu Time

CPU time is the measurement of the length of time that data is being worked on by the processor and is used as an indicator of how much processing is required for a process or how CPU intensive a process or program is.

Depending on the scenario of usage, 100% CPU time usage for a given period may be bad or good. It can be good if the goal was to use the CPU fully among programs, or bad as it may indicate that a process has been running in an endless loop or that a certain process is not optimized.

The CPU time required by programs and processes are often minuscule, fractions of a second, which is why a lot of programs can be running at the same time, but still get their turn on the CPU.

Each is granted a specific amount of time or time slice to access the CPU. For example, if a program accesses the CPU for one second every five seconds, then its total CPU time in the span of one minute is 12 seconds.