PIX on Windows

Performance tuning and debugging for DirectX 12 games on Windows

PIX 2104.20: DirectX 12 Agility SDK Support, New Occupancy Graphs
PIX 2104.20: DirectX 12 Agility SDK Support, New Occupancy Graphs
Avatar April 20, 2021 Apr 20, 2021 04/20/21
Today we released PIX version 2104.20 - adding support for all new DirectX 12 Agility SDK features including Shader Model 6.6. This release adds support for DXCompiler Slim PDBs, adds new occupancy graphs for supported GPUs, and includes an experimental feature that allows you to attach to a running process for GPU capture.
PIX Timing Captures require full PDBs
PIX Timing Captures require full PDBs
Steven Pratschner February 26, 2021 Feb 26, 2021 02/26/21
PIX Timing Captures require a title’s PDBs to be generated using the /DEBUG:FULL linker switch. PDBs generated with the /DEBUG:FASTLINK linker switch are not sufficient. Note that, depending on the version of Visual Studio you are using, the linker switch /DEBUG specified without the FULL or FASTLINK option, may default to FASTLINK...
Finding memory leaks using Timing Captures
Finding memory leaks using Timing Captures
Steven Pratschner February 23, 2021 Feb 23, 2021 02/23/21
PIX Timing Captures include several analysis features aimed at making it easy to find memory leaks in your title.  These features, coupled with the ability to take captures for extended periods of time, are a compelling combination for finding leaks, even those that can take a considerable amount of time to manifest themselves. To enable ...
WinPixEventRuntime 2102.09: Minor fixes and optimizations
WinPixEventRuntime 2102.09: Minor fixes and optimizations
Matt Amert February 16, 2021 Feb 16, 2021 02/16/21
It’s hard to believe it’s been over a year since our last update to WinPixEventRuntime! This update brings a couple of minor fixes and optimizations, which should hopefully lead to a slightly better quality of life when using the runtime 😊 You can download the new runtime here. Release notes: Known Issue...
Filtering CPU Samples by one or more PIX Events
Filtering CPU Samples by one or more PIX Events
Steven Pratschner February 3, 2021 Feb 3, 2021 02/3/21
The Sampling Profiler included in the 2101.27 release of PIX on Windows includes a novel new feature that allows you to filter the analysis of CPU samples down to just those samples that were collected during the time when one or more PIX events was running.  This capability is particularly useful for seeing which functions ran the most ...
Function Summary and Callgraph captures are now deprecated
Function Summary and Callgraph captures are now deprecated
Steven Pratschner February 1, 2021 Feb 1, 2021 02/1/21
Function Summary and Callgraph captures are deprecated starting with the 2102.27 release of PIX on Windows. The workflows supported by these legacy capture types have been replaced with enhancements we're recently made to the Sampling Profiler that is part of Timing Captures.  These enhancements include the ability to group the tree of ...
PIX 2101.27: AMD raytracing counters, DXIL improvements, and more
PIX 2101.27: AMD raytracing counters, DXIL improvements, and more
Austin Kinross January 27, 2021 Jan 27, 2021 01/27/21
Today we released PIX version 2101.27, which can be downloaded here. This release adds support for new GPUs and counters to AMD’s PIX plugin, improves the DXIL debugging experience, contains several enhancements to the CPU sampling profiler, and adds many other smaller improvements.    AMD plugin improvements  This ...
New documentation page: Analyzing CPU samples in Timing Captures
New documentation page: Analyzing CPU samples in Timing Captures
Steven Pratschner December 7, 2020 Dec 7, 2020 12/7/20
Hi PIX users, I've added a new page to our PIX for Windows documentation set.  The new page describes how to use Timing Captures to analyze CPU samples.  Collecting CPU samples allows you to analyze how functions within your title are impacting performance.  We've been steadily adding new features to PIX's sampling profiler and will ...