![]() ![]() They are also quite easy to port, run, maintain, and do not require a full system setup for projecting scores. Synthetic benchmarks, such as Dhrystone and CoreMark, are useful for measuring core CPU performance during development. For example, a web browsing benchmark will exercise a complex software stack, system, and CPU IP – not just the CPU as a standalone item to measure. ![]() Moreover, use case-based benchmarks can often be impractical as a measure of IP performance. This makes it challenging to use them for performance exploration in the early stages of the design cycle. Also, the metrics to measure the performance of use cases are difficult to measure in pre-silicon platforms. Use case-based benchmarks – which includes Speedometer to measure the responsiveness of web applications – are very representative of end usage, but challenging to port, run, maintain, and require full-system platforms for projecting scores. One example is SPEC CPU, which is the most popular benchmark for measuring CPU performance. The opposite is true for synthetic and micro benchmarks.Īpplication benchmarks comprise of complete and real programs that are widely used to solve various compute challenges, but could be complex to port and setup. However, the cost and complexity to set them up, maintain, and use for pre-silicon analysis also starts significantly increasing. Application and use case-based benchmarks have a higher correlation with the end user experience. The key categories are synthetic, micro, kernel, application, and use case-based benchmarks. The different CPU benchmarksĪt Arm, we use a spectrum of benchmarks to measure performance. Therefore, it is important to understand the spectrum of different benchmarks and how they measure overall system performance. These cover Arm’s Cortex-M CPU products that are often used in sensors within Home devices right through to our Cortex-A CPU products that enable more complex use cases on DTV and STB/ OTT devices, like multi-stream video or advanced user interfaces. In the Home device market, a variety of CPUs that vary in terms of performance and efficiency are used. While many of the older standalone benchmarks could be considered too simple” for more complex compute workloads taking place on DTV and STB/ OTT devices, they could still find a role in the early development stages of CPU IP. As a result, these more modern benchmarks are likely to be more beneficial to modern Home devices where the user experience is paramount. In the past 20 years, benchmarks have evolved at a rapid pace, moving from standalone measurements to reflecting real-world use cases to gain a more accurate representation of performance. With the advent of more complicated use cases and compute workloads, benchmarks are becoming increasingly important in the Home device market, which includes digital television (DTV) and set-top box (STB)/ over-the-top (OTT) devices. Benchmarks are vital tools for measuring the performance of Central Processing Units (CPUs) in the most popular consumer devices. GPUs can also be benchmarked to determine the performance of graphics cards. Similarly, clock speed is often considered the most important measurement for a CPU benchmark score, but it provides only a narrow view of a processor s overall performance. Some tests use real world situations and others use idealized environments, a difference that has major implications for a CPU s marketing and performance expectations. In CPU benchmark testing, what constitutes a good or bad score is subjective a number of elements can impact the outcome of a CPU benchmark test, including the testing software, environmental factors like RAM and hard drive speeds, and the KPIs that are deemed most valuable. The benchmark standards change between generations of CPUs and also between different manufacturers, such as Intel and AMD CPUs.ĬPU benchmark software will also gather and provide information on many of the main devices in a computer system such as the processor, motherboard and chipset, memory and more. CPU specifications typically measured by a benchmark test include: CPU Benchmark TestsĪ typical CPU benchmark test will compare the test system against the standards for the type of CPU used. A set of standards or baseline measurements are used to compare the performance of different systems using the same methods and circumstances. A CPU benchmark is the result of a series of tests designed to measure the performance of a computer or device CPU (or SoC ).
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