PIX on Windows

Performance tuning and debugging for DirectX 12 games on Windows

PIX CPU Tools: Populating the Range Details view

The most common way to populate the Range Details view in the new implementation of PIX Timing Captures is to drag select a range of time in the Timeline using the mouse.  When you complete your selection, Range Details is populated with the data from all Thread and Core lanes for the range of time you selected.  After Range Details is ...

PIX CPU Tools: Graphing PIXReportCounter values in the Metrics View

The Metrics view in New Timing Captures allows you to graph the duration of PIX CPU events and any counter values that are reported using the PIXReportCounter API.  Graphing event durations is fairly discoverable in the UI, but I think it's less well-known that counter values can be graphed as well. Annotating your title with calls to ...

PIX CPU Tools Reboot!

A few weeks ago we released a version of PIX that includes a Preview release of a new implementation of Timing Captures.  This release represents a significant reboot of our CPU performance tools in PIX. We've gotten a lot of feedback over the last few years about how our CPU tools in PIX compare with other AAA game-focused profiling tools...

PIX 1903.26 – Occupancy for Turing GPUs and Variable Rate Shading

Today we released PIX-1903.26, available for download here. This release includes support for Variable Rate Shading in GPU Captures, and it adds support for Occupancy on NVIDIA Turing GPUs such as an RTX 2080.   Variable Rate Shading Variable Rate Shading (VRS) is a powerful new DirectX 12 feature that allows applications to ...

PIX 1903.12 – High Frequency Counters

Today we released PIX-1903.12, available for download here. This release includes an exciting new feature in GPU Captures: High Frequency Counters. With High Frequency Counters, developers can plot graphs of GPU hardware counter values over time and correlate ranges of the graphs back to specific events within their GPU Capture. These ...

PIX 1901.28 – Timing Data Improvements and support for new GPUs

Today we released PIX-1901.28, which can be downloaded here. In this release we’ve made improvements to Timing Data in GPU Captures, added support for new GPUs from NVIDIA and AMD, and fixed miscellaneous other issues described below. Timing Data Improvements for GPU Captures We have significantly reworked how PIX collects Timing Data in GPU...

PIX 1812.14 – Playback Adapter Selection

Today we released PIX-1812.14, which adds support for selecting the playback adapter, displaying unbound resources and improvements to the occupancy lane.  This release also includes various miscellaneous fixes detailed below. Playback Adapter Selection PIX now allows you to select the GPU on which to play back a recording. After opening a ...

PIX 1810.24 – Support for final DirectX Raytracing API

Today we released PIX-1810.24, which adds support for the final DirectX Raytracing (DXR) API that’s part of the Windows 10 October 2018 Update (a.k.a. “RS5”). This release also fixes miscellaneous other bugs, including an incompatibility between PIX and the latest AMD 18.40+ drivers. Features available in PIX to help developers debug ...