All About Computers:Performance AssessmentsManufacturers like to talk about the workload their computers can handle. But those claims aren't always reliable. At All About Computers, we assess computer systems and evaluate manufacturers' claims. We use a variety of benchmarks performance. We use real applications that you use every day and measure their performance in MIPS. We follow the reproducibility rule. We also use SPEC CPU benchmarks and the SPEC ratio. This is how we test the execution times of the machine's （ 1 ） processing unit. We take steps to ensure the best, most reliable results.Our ProcessPerformance assessments require （ 2 ） calculations. The first is arithmetic mean. This compares the average execution time to the overall execution time. We also evaluate weighting factors. Programs with higher percentages of use have higher weighting factors. The weighting （ 3 ） and execution times are used to calculate the weighted arithmetic mean. That yields the total performance of the workload.Why We Do ItSome manufacturers claim that a new （ 4 ） of a product is significantly faster. And they'll increase the price. But there's a （ 5 ） to how much faster a system can get. (See our explanation diminishing returns. ) Amdahl's law is also used to find the maximum expected improvement to a system when only part of it is improved. That's why bringing in All About Computers is worth the investment.