June 29, 2017
Debugging graphics performance in a simple and high-level manner is possible for all Gallium based Mesa drivers.
GALLIUM_HUD is a feature that adds performance graphs to applications that describe various aspects like FPS, CPU usage, etc in realtime.
It is enabled using an environment variable, GALLIUM_HUD, that can be set for GL/EGL/etc applications. It only works for Mesa drivers that are Gallium based, which means that the most drivers (with the notable exception of some Intel drivers) support GALLIUM_HUD.
See GALLIUM_HUD options:
export GALLIUM_HUD=help glxgears
If you're building Android, you can supply system-wide environment values by doing an export in the init.rc file of the device you are using, like this.
# Go to android source code checkout cd android # Add export to init.rc (linaro/generic is the device I use) nano device/linaro/generic/init.rc export GALLIUM_HUD cpu,cpu0+cpu1+cpu2+cpu3;pixels-rendered,fps,primitives-generated
If you're using one of the usual Linux distros, GALLIUM_HUD can be enabled by setting the environtment variable in a place that it loaded early.
# Add export to /etc/environment nano /etc/environment export GALLIUM_HUD cpu,cpu0+cpu1+cpu2+cpu3;pixels-rendered,fps,primitives-generated
This post has been a part of work undertaken by my employer Collabora.
Earlier this year, from January to April 2021, I worked on adding support for stateless decoders for GStreamer as part of a multimedia internship…
In our previous post, we presented a project backed by INVEST-AI which introduces a multi-stage neural network-based solution. Now let's…
Initiated as a joint effort by the Google Chrome OS team and Collabora, the recent KernelCI hackfest brought the addition of new tests including…
There's a lot that has happened in the world of Zink since my last update, so let's see if I can bring you up to date on the most important…
Panfrost, the open source driver for Arm Mali, now supports OpenGL ES 3.1 on both Midgard (Mali T760 and newer) and Bifrost (Mali G31, G52,…
Collabora has been investing into Perfetto to enable driver authors & users to get deep insights into driver internals and GPU performance.…