The Khronos Group recently released a set of provisitional extensions adding video encoding and decoding capabilities to the Vulkan API, collectively referred to as Vulkan Video. This thus seemed like the perfect opportunity to provide an introduction to video compression from the perspective of a graphics programmer, and discuss why having integrated support for video encoding and decoding as part of the Vulkan API is an important step forward for the industry.
Most systems programmers are not new to creating and applying custom memory allocators in performance or memory constrained projects. However, the benefits of purpose-built memory allocators are often underestimated or overlooked by many programmers. This article aims to provide an overview of the motivation and advantages of deploying custom memory allocation schemes and presents a few common allocation strategies.
Previously we explored the different types of memories available for access by the GPU, but only barely touched on the topic of caches. In this article we will make up for that by taking a look at the different caches available on modern GPUs to appreciate their role in the system. Having thorough understanding of GPU cache behavior enables developers to better utilize them and thus improve the performance of their graphics or compute applications.