PIX on Windows

Performance tuning and debugging for DirectX 12 games on Windows

March 2023 - PIX on Windows

PIX 2303.30: Misc bug fixes + preview GPU Upload heap support 

March 30, 2023 Mar 30, 2023 03/30/23
Austin Kinross
Today we released two versions of PIX on Windows: version 2303.30 and version 2303.30.002-preview. Both can be downloaded here: link.  If you’re using today’s new preview D3D12 features (GPU Upload Heaps or Non-normalized Sampling) then we recommend that you use PIX 2303.30.002-preview to debug and profile your application.  For ...

PIX and ID3D12ManualWriteTrackingResource 

March 30, 2023 Mar 30, 2023 03/30/23
Austin Kinross
Summary If you’re using GPU_UPLOAD heaps and you are experiencing capture-time performance issues when you launch your application via PIX (e.g. your game’s framerate drops) then read on to learn how ID3D12ManualWriteTrackingResource might help you.   Background When taking a GPU Capture, PIX (and other graphics debugging tools...
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Programmatic Timing Captures now available

March 20, 2023 Mar 20, 2023 03/20/23
Steven Pratschner
As described in Programmatic Captures, the PIXBeginCapture and PIXEndCapture can now be used to start and stop Timing Captures from code running in your title.  Programmatic Timing Captures are available starting with the 2303.02 release of PIX on Windows and version 1.0.230302001 of the WinPIXEventRuntime. Timing captures use several ETW ...
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Memory profiling support for allocations made from a title’s custom allocator

March 13, 2023 Mar 13, 2023 03/13/23
Steven Pratschner
Starting with the 2303.02 release of PIX on Windows, PIX timing captures can track memory allocations and frees made by your custom memory allocators. By calling the new APIs, PIXRecordMemoryAllocationEvent and PIXRecordMemoryFreeEvent, you provide PIX with the data it needs to display information about all memory allocations and frees made...
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PIX 2303.02: You asked, we listened! A bumper PIX release

March 2, 2023 Mar 2, 2023 03/2/23
Austin Kinross
Today we released PIX on Windows version 2303.02, which can be downloaded here. We have also released a new version of WinPixEventRuntime, which can be downloaded here. This release has many new features and bug fixes in direct response to requests and feedback we've received from PIX users. Thank you for all of your feedback and ...