Factors in the performance of a computer
•The overall performance can you get your PC depends on how each of its components work together to accomplish a task. The effect of each individual component may vary depending on how much is engaged in executing a particular application. As shown below, 54% of the system performance depends on your processor, or CPU, when running typical Windows * applications. Other components such as memory, video and disc also play a role. A “weak link” in the system can significantly reduce the speed and response time that you experience.
The percentages represent the use of components that are running Windows * Typical applications
Therefore, when choosing a system, you should start looking for which is the processor that offers the best performance for your software, a preciorazonable. Then can you begin to analyze the other system components to ensure they enjoy all the benefits of processor power.
SOME TOOLS OF BENCHMARK
Ciusbet created in 2003 is an important benchmark for analyzing most of the team. It has been designed in consultation with people who specialize in hardware and overclockers, to ensure that the analysis is reliable and, above all, useful development is a freeware, and is considered one of the most useful applications of benchmarking in this sector. This benchmark is basically composed of four benchmarks: CPU, hard drive, graphics card and overall performance, after the required time spent in the performance of these test, has a database of the latest machines and largehardware capabilities to compare and observe the advantages and disadvantages of our machine.
The Linpack benchmark was developed at the Argonne National Laboratory in 1976 by Jack Dongarra, and is one of the most used in scientific and engineering systems.
Its use as a benchmark was accidental, as was originally an extension of the Linpack, which is a collection of Fortran subroutines that analyze and solve linear equations and linear least squares problems, Linpack The main feature is that they make very intensive use of floating point operations, so their results are highly dependent on the ability of the FPU) “having the system” is a component of specialized CPU in the calculation of floating point operations. The basic operations are all FPU can perform the arithmetic (addition and multiplication). ” Also spend much time running around calling BLAS routines (Basic Linear Algebra Subroutines, or Basic Linear Algebra Subroutines).
Moreover, when performing matrix calculations essentially a test is easily parallelizable, and can be used to measure the efficiency of multiprocessor systems (in fact, there is a website that informs the “Top 500” of computers based on the Linpack .)
Attempts to measure the speed of the system in terms of non-numerical performance, expressing the results in DPS (Dhrystones instructions per second).
Dhyrstone performance is calculated from the following formula: Dhrystone iterations per second = CPU clock * number of passes / runtime contains many simple instructions, procedure calls and conditional, and few floating-point loops, performs operations with pointers. It consists of 12 procedures in a loop with 94 sentences so far.
It comprises 53% of assignment statements, 32% of control instructions and 15% of procedure calls.
Simple integer arithmetic, logical decisions, and memory accesses are the dominant CPU activities in most Windows programs.
Whetstone is a measure of CPU performance in floating point, expressed in millions of floating point operations per second (MFLOPS).
The Whetstone benchmark is widely used in the computer industry as a measure of performance, Wintune uses a modified version of the Whetstone keeps your data in the storage program. This allows the benchmarks work properly in multiple threads in Windows NT.
The Whetstone does a lot of floating point arithmetic a bit memory access, and a little integer arithmetic.