Radeon GPU Profiler 1.3

First, happy birthday to RGP! We released 1.0 publicly almost exactly a year ago at the time of writing, something I’ve just realised as I put together this post. Thank you to everyone that’s used it, sent us feedback and asked for fixes, changes or features, and helped repro bugs — RGP wouldn’t be a success without you.

Changes in 1.3

This release has a lot of work under the hood to prepare it for some big features and changes coming in future releases, but there are still a few notable things worth talking about. The first is that we now surface some extra data about shader resources in a new table, showing you register and LDS usage for the particular shader you want to inspect, along with theoretical occupancy, to give you an at-a-glance view of what’s happening in a shader without having to switch to the Pipeline view.

We now also have a new render target view that lets you get an overview of RTs used in the profiled frame. Based on the active grouping mode you can either see a top-level listing of the render targets per frame, or per pass, and the UI will adjust your view of the statistics to suit. If you drill down into an RT to take a closer look, you can see the details you’d expect — name, format, dimensions, the number of draw calls that rendered to it, whether DCC was on or off, MSAA sample count — plus a couple of other deeper draw-related pieces of information that depend on draw state and the underlying hardware.

Along with that, RGP and RDP together are more robust in the face of applications that create multiple device contexts before using one for rendering. It turns out that’s pretty common, usually to use the initial device context to query device capabilities, so we handle that case a lot better than before, improving compatibility with quite a few more games.

So while 1.3 might be a relatively small release as far as visible features goes, but a lot has happened internally to lay the groundwork for an exciting crop of features to be released in the future. We’ll talk about those, and the other features we’re working on for 1.4 and beyond, here on GPUOpen as soon as we can!

More information

As always, you can find out more about RGP, including links to the release binaries on GitHub and the full release notes list, on our product page. As always: please send us your feedback so that we can keep making RGP the very best developer-focused performance analysis tool for modern graphics work. It’s incredibly valuable to us and helps shape the roadmap for RGP 💪