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Mainline Explicit Fencing - Part 1

September 13, 2016 by Gustavo Padovan  |   Blog

When it comes to buffer sharing synchronization in the kernel there are two ways of doing it: Implicit Fencing and Explicit Fencing. The difference between them relies on the fact that the kernel may or may not share synchronization information with userspace,…

Mainline Explicit Fencing - Part 1

Event: IBC 2016

September 05, 2016 by Mark Filion  |   News and Events

Collabora will be exhibiting at IBC 2016, the premier annual event for professionals engaged in the creation, management and delivery of entertainment and news content worldwide.

Event: IBC 2016

Building Android for Qemu: A Step-by-Step Guide

September 02, 2016 by Robert Foss  |   Blog

Developing Linux for Android on Qemu allows you to do some things that are not necessarily possible using the stock emulator. For my purposes I need access to a GPU and be able to modify the driver, which is where Virgilrenderer and Qemu comes in handy.

Building Android for Qemu: A Step-by-Step Guide

Increased performance of emulated NVMe devices

August 23, 2016 by Helen Fornazier  |   Blog

Nowadays, in Google Cloud Engine (GCE), it is possible to attach a local SSD with the NVMe interface to your virtual machine. Unfortunately, you only get a good number of iops (input/output operations per second) if you instantiate a machine with nvme-backports-debian-7-wheezy…

Increased performance of emulated NVMe devices

Thoughts about reviewing large patchsets

August 12, 2016 by Philip Withnall  |   Blog

I have recently been involved in reviewing some large feature patchsets for a project at work, and thought it might be interesting to discuss some of the principles we have been trying to stick to when going about these reviews.

Thoughts about reviewing large patchsets

OpenGL 4.4 for Intel Linux Drivers

August 05, 2016 by Timothy Arceri  |   Blog

For years the open source Linux OpenGL drivers have been playing catchup to the proprietary drivers and in the case of Intel hardware to the Windows driver. Recently, a major milestone was reached in bridging this gap with the enablement of OpenGL 4.4…

OpenGL 4.4 for Intel Linux Drivers

Collabora contributions to Linux Kernel 4.7

July 26, 2016 by Gustavo Padovan  |   Blog

Linux Kernel 4.7 was released this week with a total of 36 contributions from five Collabora engineers. It includes the first contributions from Helen as Collaboran and the first ever contributions on the kernel from Robert Foss. Here are some of the…

Collabora contributions to Linux Kernel 4.7

GStreamer Echo Canceller

July 08, 2016 by Nicolas Dufresne  |   Blog

For a long time I believed that echo cancellers had no place inside GStreamer. The theory was that GStreamer was too high level and would never be able to provide accurate enough delay information for any canceller to work.

GStreamer Echo Canceller

Introducing GStreamer VR Plug-ins and SPHVR

July 04, 2016 by Lubosz Sarnecki  |   Blog

The dawn of VR video players demand new features in terms of projection and hardware access. In his recent R&D work, a Collaboran implemented a way to view spherical videos with GStreamer on a Virtual Reality headset. In this article, he gives his thoughts…

Introducing GStreamer VR Plug-ins and SPHVR

Event: DebConf16

June 30, 2016 by Mark Filion  |   News and Events

Collabora is proud to be sponsoring DebConf16, the annual Debian developers meeting, taking place in Cape Town, South Africa, from 2 July to 9 July 2016.

Event: DebConf16

SVVR 2016: Virtual reality in the Valley

June 27, 2016 by Frédéric Plourde  |   Blog

I’ve been fortunate enough lately to attend the largest virtual reality professional event/conference : SVVR. This virtual reality conference’s been held each year in the Silicon Valley for 3 years now. This year, it showcased more than 100 VR companies…

SVVR 2016: Virtual reality in the Valley

GTK Hackfest 2016

June 22, 2016 by Simon McVittie  |   Blog

I'm back from the GTK hackfest in Toronto, Canada and mostly recovered from jetlag, so it's time to write up my notes on what we discussed there.

GTK Hackfest 2016

Tracing memory leaks in the NFC Digital Protocol stack

November 06, 2017 by Thierry Escande  |   Blog

Kmemleak allows you to track possible memory leaks inside the Linux kernel. Basically, it tracks dynamically allocated memory blocks in the kernel and reports those without any reference left and that are therefore impossible to free.

Tracing memory leaks in the NFC Digital Protocol stack

Who knew we still had low-hanging fruit?

October 17, 2017 by Gustavo Noronha  |   Blog

Earlier this month I had the pleasure of attending the Web Engines Hackfest, hosted by Igalia at their offices in A Coruña, and also sponsored by my employer, Collabora, Google and Mozilla. It has grown a lot and we had many new people this year.

Who knew we still had low-hanging fruit?

Performance analysis in Linux (continued)

October 06, 2017 by Gabriel Krisman Bertazi  |   Blog

In this post, I will show one more example of how easy it is to disrupt performance of a modern CPU, and also run a quick discussion on why performance matters - as well as present a few cases where it shouldn't matter.

Performance analysis in Linux (continued)

XDC 2017 - Links to recorded presentations (videos)

September 23, 2017 by Guy Lunardi  |   Blog

Many thanks to Google for recording all the XDC2017 talks. To make them easier to watch, here are direct links to each talk recorded at XDC2017.

XDC 2017 - Links to recorded presentations (videos)

DebConf 17: Flatpak and Debian

August 17, 2017 by Simon McVittie  |   Blog

Last week, I attended DebConf 17 in Montréal, returning to DebConf for the first time in 10 years (last time was DebConf 7 in Edinburgh). It was great to put names to faces and meet more of my co-developers in person!

DebConf 17: Flatpak and Debian

Android: NXP i.MX6 on Etnaviv Update

July 24, 2017 by Robert Foss  |   Blog

More progress is being made in the area of i.MX6, etnaviv and Android. Since the last post a lot work has gone into upstreaming and stabilizing the etnaviv on Android ecosystem. This has involved Android, kernel and Mesa changes, many of which are available…

Android: NXP i.MX6 on Etnaviv Update

vkmark: more than a Vulkan benchmark

July 18, 2017 by Alexandros Frantzis  |   Blog

Ever since Vulkan was announced a few years ago, the idea of creating a Vulkan benchmarking tool in the spirit of glmark2 had been floating in my mind. Recently, thanks to my employer, Collabora, this idea has materialized! The result is the vkmark Vulkan…

vkmark: more than a Vulkan benchmark

Quick hack: Performance debugging Linux graphics on Mesa

June 29, 2017 by Robert Foss  |   Blog

Debugging graphics performance in a simple and high-level manner is possible for all Gallium based Mesa drivers using GALLIUM_HUD, a feature that adds performance graphs to applications.

Quick hack: Performance debugging Linux graphics on Mesa

Debian armhf VM on arm64 server

June 20, 2017 by Sjoerd Simons  |   Blog

At Collabora one of the many things we do is build Debian derivatives/overlays for customers on a variety of architectures including 32 bit and 64 bit ARM systems. And just as Debian does, our OBS system builds on native systems rather than emulators.

Debian armhf VM on arm64 server

NVMe: Officially faster for emulated controllers!

June 13, 2017 by Helen Koike  |   Blog

The feature to improve NVMe performance over emulated environments has now been officially released in the NVMe Specification Revision 1.3 under the name "Doorbell Buffer Config command", along with an implementation in the mainline Linux kernel!

NVMe: Officially faster for emulated controllers!

Android: NXP i.MX6 Buffer Modifier Support

June 05, 2017 by Robert Foss  |   Blog

GPUs like Intel and Vivante support storing contents of graphical buffers in different formats. Support for describing these formats using modifiers has now been added to Android and Mesa, enabling tiling artifact free running of Android on the iMX6 platform.

Android: NXP i.MX6 Buffer Modifier Support

Collabora contributions to GStreamer 1.12

May 04, 2017 by Olivier Crête  |   Blog

Along with the usual load of memory leaks, crashes and other bugs, Collabora's multimedia team once again contributed a number of improvements across a wide number of areas.

Collabora contributions to GStreamer 1.12

PanVK support for Arm V10 GPUs

September 18, 2024 by Erik Faye-Lund  |   News & Events

It is now possible to start kicking the tires on Vulkan with an open source driver on Arm Mali-G610 and Mali-G310 GPUs. The Panfrost project continues to grow!

PanVK support for Arm V10 GPUs

Waltzing into a packed Open Source week

September 16, 2024 by Kara Bembridge  |   News & Events

Collabora will be in Vienna for the Media Summit, Open Source Summit Europe, and Linux Plumbers! Catch one of our many talks.

Waltzing into a packed Open Source week

First on the SIDO scene

September 13, 2024 by Kara Bembridge  |   News & Events

As guests at the STMicroelectronics booth, Collabora will be demonstrating how the STM32MP2 chip is perfectly suited for enabling edge AI solutions in industrial environments.

First on the SIDO scene

Connecting the remote dots at IBC 2024

August 29, 2024 by Kara Bembridge  |   News & Events

Collabora is headed to Amsterdam for IBC! Drop by to see our work on the DAB protocol, our integration of LCEVC, and our latest XR project, ElectricMaple.

Connecting the remote dots at IBC 2024

Testing in the Cloud: Enabling Fedora's openQA for flexible cloud deployment

July 24, 2024 by Deborah Brouwer  |   News & Events

OpenQA is a tool for functional, end-to-end testing of operating system distributions. Earlier this year, Collabora undertook a project, sponsored by Meta, to reproduce Fedora’s openQA deployment in the AWS cloud.

Testing in the Cloud: Enabling Fedora's openQA for flexible cloud deployment

Kernel 6.10: Keep the updates coming

July 18, 2024 by Sebastian Reichel  |   News & Events

The latest kernel 6.10 release brings multiple core changes and updates to BH workqueues. Let's examine the developments implemented by Collabora's engineers.

Kernel 6.10: Keep the updates coming

Taming the Panthor: OpenGL ES 3.1 conformance achieved on Mali-G610

July 15, 2024 by Eric Smith  |   News & Events

The Panthor kernel driver and Mesa Panfrost driver combination has achieved official conformance for OpenGL ES 3.1 on the Mali-G610 chip, ensuring reliable performance for users on Mesa version 24.1.1.

Taming the Panthor: OpenGL ES 3.1 conformance achieved on Mali-G610

ElectricMaple: Open Source remote-rendering debuts at AWE 2024

June 19, 2024 by Mark Filion  |   News & Events

Making its debut this week at Augmented World Expo (AWE) in Long Beach, ElectricMaple is an innovative, open source project by Collabora and PlutoVR designed to enhance standalone XR experiences through remote-rendering.

ElectricMaple: Open Source remote-rendering debuts at AWE 2024

Making a spatial impact at AWE 2024

May 30, 2024 by Kara Bembridge  |   News & Events

Join us at Augmented World Expo for a first-hand look at our recent XR work including ElectricMaple remote rendering, and xrdesktop showcasing a fully open-source 3-window desktop configuration with gaze-driven window selection.

Making a spatial impact at AWE 2024

Mesa 24.1 brings new hardware support for Arm and NVIDIA GPUs

May 22, 2024 by Faith Ekstrand  |   News & Events

Mesa 24.1 is out, and the graphics team at Collabora has been working hard to bring a slew of new features and bug fixes to Panfrost, Zink, NVK, and Mesa in general. Here's a look at their contributions for this release cycle.

Mesa 24.1 brings new hardware support for Arm and NVIDIA GPUs

Implementing DRM format modifiers in NVK

May 16, 2024 by Faith Ekstrand  |   News & Events

This week we merged support for the VK_EXT_image_drm_format_modifier extension in NVK, the new open-source Vulkan driver for NVIDIA hardware. We've also back-ported the code to the Mesa 24.1 staging branch, part of the upcoming Mesa 24.1 release.

Implementing DRM format modifiers in NVK

Kernel 6.9: Enable, test, repeat

May 14, 2024 by Nícolas Prado  |   News & Events

Collabora's engineers continue to be involved in the hardware enablement for a few different system-on-chips (SoCs) and platforms, and have also contributed significant improvements to kernel testing.

Kernel 6.9: Enable, test, repeat

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Here are the events we'll be attending in the coming weeks – come say hello!

NeurIPS

December 10-15, Vancouver, Canada

FOSDEM

February 1-2, Brussels, Belgium

 

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