Latency is a time delay between the cause and the effect of some physical change in the system being observed. However, sometimes pushing one type of performance to an extreme leads to a CPU with worse overall performance, because other important aspects were sacrificed to get one impressive-looking number, for example, the chip's clock rate (see the megahertz myth).Īpplication performance engineering For example, building the CPU out of better, faster transistors. Occasionally a CPU designer can find a way to make a CPU with better overall performance by improving one of the aspects of performance, presented below, without sacrificing the CPU's performance in other areas. Performance engineering continuously deals with trade-offs between types of performance. Performance engineering within systems engineering encompasses the set of roles, skills, activities, practices, tools, and deliverables applied at every phase of the systems development life cycle which ensures that a solution will be designed, implemented, and operationally supported to meet the performance requirements defined for the solution. The word performance in computer performance means the same thing that performance means in other contexts, that is, it means "How well is the computer doing the work it is supposed to do?" As an aspect of software quality Ĭomputer software performance, particularly software application response time, is an aspect of software quality that is important in human–computer interactions. Whilst the above definition relates to a scientific, technical approach, the following definition given by Arnold Allen would be useful for a non-technical audience: Compared relative to other systems or the same system before/after changes.The performance of any computer system can be evaluated in measurable, technical terms, using one or more of the metrics listed above. High availability of the computing system or application.Fast (or highly compact) data compression and decompression.Low utilization of computing resource(s).High throughput (rate of processing work).Short response time for a given piece of work.When it comes to high computer performance, one or more of the following factors might be involved: Outside of specific contexts, computer performance is estimated in terms of accuracy, efficiency and speed of executing computer program instructions. In computing, computer performance is the amount of useful work accomplished by a computer system. Present PrIM, a benchmark suite of 16 workloads from different applicationĭomains (e.g.Amount of useful work accomplished by a computer System using microbenchmarks to assess various architecture limits such asĬompute throughput and memory bandwidth, yielding new insights. We make two key contributions.įirst, we conduct an experimental characterization of the UPMEM-based PIM Publicly-available real-world PIM architecture. This paper provides the first comprehensive analysis of the first Manufactured the first publicly-available real-world PIM architecture. In contrast, the UPMEM company has designed and Past worksĮvaluate these architectures in simulation or, at best, with simplified The emergence of new 3D-stacked memory technologies that integrate memory withĪ logic layer where processing elements can be easily placed. Recent research explores different forms of PIM architectures, motivated by Requires a paradigm where the memory system assumes an active role in computingīy integrating processing capabilities. Fundamentally addressing this data movement bottleneck Low data reuse in memory-bound workloads is insufficient to amortize the cost Happens through a narrow bus with high latency and limited bandwidth, and the A major reason is that this communication Movement between main memory and CPU cores imposes a significant overhead in Processing, are fundamentally memory-bound. Download a PDF of the paper titled Benchmarking a New Paradigm: An Experimental Analysis of a Real Processing-in-Memory Architecture, by Juan G\'omez-Luna and 5 other authors Download PDF Abstract: Many modern workloads, such as neural networks, databases, and graph
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