【中英字幕】ARM官方视频：DynamIQ

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【中英字幕】ARM官方视频：DynamIQ

其实是很早的视频了，前几天才注意到。自己听译加了字幕方便各位观看。

水平有限，如有错误敬请谅解和指正。

www.zhihu/video/934887155474493440

原男士化妆视频地址：ARM-DynamIQ

这视频应该只是很简单的介绍，官网应该还有更详细的资料我还没时间看，寒假如果有时间学习一个过来更细致科普一下。

【译文】

在典型的现代big.LITTLE系统中，big.LITTLE HMP（异构多核处理）软件将任务与处理器恰当匹配，以根据需要最大化能效和性能。

今天，big.LITTLE通过一致性互联架构连接的两个处理器簇运行，每簇包含至多四个大核或四个小核。同一簇内的所有核心是一样的，它们运行在共享的二级缓存下，运行频率相同，具有相同的实现和缓存大小。

但我们继续发展了这保险理财项技术。今天，我们将介绍big.LITTLE的新进展。我们从底层开始为未来的CPU和智能解决方案设计了全新的架构、微架构和软件优化，重新构建了计算体验。

下一代的big.LITTLE技术——ARM DynamIQ——带来了ARM多核处理器集群设计史上自引入四核心集群（簇）以来最大的变革。

借助A75和A55，我们现在可以在一个核心簇上支持多达8颗核心。但更重要的是，同一簇内的核心可以互不相同——可以具有不同的微架构、实现、缓存配置和频率。每颗核心都拥有独立的二级缓存，整簇则拥有共享的三级缓存。这带来了更高的性能和能效，并提供了优化设计的可能性

可以拥有不同的CPU，大大拓宽了配置的可能范围。例如，中端系统可以配备两大四小（2+4），低端系统可以配备0+8，高端系统则可以配备2+6，直到极致性能的4+4。这提供了灵活、可扩展的解决方案，能适应各种面积、能效和性能需求。

这带来了全新的、更强大的用户体验，为从边缘到云端的智能设备提供了更高的隐私性和安全性。

新的微架构为每颗核心提供了快速、专有、大小灵活的二级缓存，而共享三级缓存实现了CPU之间简化的、更快的线程迁移。这样低延迟的交互提升了系统性能，并能将每个核心单独的频率控制器与能源感知调释传真度器结合，从而更精确地管理功耗和性能。这是每个软件任务所必需的。

当然，这种一致性不仅限于CPU集群，big.LITTLE集群与SoC的其他部分——例如通过C心情不好怎么发泄CI（缓存一致互联）调用技术连接的Mali GPU——完全一七夕节的由来致，从而实现了全异构计算。

DynamIQ技术将为未来的智能手机，家庭娱乐，联网汽车和其他设备提供下一代智能解决方案，从而实现性能，能效和安全性的提升。

DynamIQ技术让优化设计成为了可能。

【原文】

In the typical modern big.LITTLE system, the big.LITTLE HMP software matches the right tasks to the right processors to maximize the 女汉纸efficiency and performance when you need it. Today, big.LITTLE operates across two clusters of processors connected by coherent interconnect, and with up to 4 big or up to 4 little in each cluster. All cores in the cluster are the same, and each cluster runs under its own shared L2 cache with all cores running at a same frequency, with the same implementation and the same cache sizing. But we've刘佳慧 continued to evolve the technology. And today we're introducing the next advance in big.LITTLE, designed from the ground up for future generations of CPUs and intelligent solutions with architecture, microarchitecture, and software optimizations, rearchitecting the compute experience. The next genera富德生命人寿保险tion of big.LITTLE technology, ARM DynamIQ, brings the biggest change in ARM multiprocessor cluster design since the introduction of the 4 core c橱柜晶钢门板luster. With Cortex-A75 and Cortex-A55, we now support up to 8 cores in a single cluster. But more importantly, the cores can now all be different to each other, with different microarchitecture, different implementations, cache configurations and frequencies. Eac林中小屋结局h core has its own private L2 cache, and the cluster has a shared L3 which deli背带裤vers even more performance and efficiency and the possibilities for you to optimize your designs. This ability to have different CPUs, opens up a much wider range of possible configurations. For example, 2 big and 4 little for mid-range sysvrptems, or 0+8 for lower-end systems, and then 2+6 for higher-end systems, all the way up to 4+4 for premium, offering you a very flexible and scalable solution for area, effic改掉坏习惯iency, and performance. This enables new, more enhanced user experiences, with greater privacy and security for intelligent devices from t员工考勤制度he edge to the cloud. The microarchite耳声发射cture provides a fast, dedicated, flexibly sized L2 cache close to each core, while the shared L3 cache enables simplified and more rap定岗定编id thread migration between the CPUs. This low latency interaction results in more performance for the system and with演艺吧 the option of individual frequency controller of each core combined 经典儿童电影with energyaware scheduler, you can more precisely manage p本科肄业ower and performance. That’s required for each software task. Of course, coherency does not stop at the CPU cluster, and the big.LITTLE cluster is fully coherent with other SoC components, such as a Mali GPU via CCI calling technology, enabling full heterogeneous compute. DynamIQ technology will enable next-generation intelligent solutions for smart phones, home entertainment, connected cars, and other devices of tomorrow, delivering a step chan西班牙文学ge in performance, efficiency and safety. DynamIQ technology gives you the opportunity to optimize the design that is just right.

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