1. Computers
  2. Display Drivers
  3. Graphics Cards
  4. Memory
  5. Motherboards
  6. Processors
  7. Software
  8. Storage
  9. Operating Systems


Facebook RSS Twitter Twitter Google Plus


Phoronix Test Suite

OpenBenchmarking.org

Intel Provides Update, Plans For GEM

X.Org

Published on 04 September 2008 10:07 AM EDT
Written by Michael Larabel in X.Org
1 Comment

Intel's Eric Anholt just finished speaking at the 2008 X Developers' Summit about video memory management. Specifically, Eric was talking about GEM, or the Graphics Execution Manager, that came about as a result of concerns that arose about Tungsten's TTM. GEM is now the kernel memory manager they are focusing their open-source development work on for the xf86-video-intel driver and is what they hope will become the de facto standard for memory management.

In this Graphics Execution Manager talk, Eric started talking about their past memory management methods (i830_memory.c, exa_offscreen.c, and texmem.c) that imposed many limitations along with the shortcomings they experienced with TTM. A new memory manager was needed for composited OpenGL, EXT_framebuffer_object, EXT_texture_from_pixmap, reduced memory consumption, and private back-buffers.

In this talk the next plans they have for GEM are fence register management, hardware contexts, user-land cache management, rectangular pwrite, GIT mmap, and fault-based flushing.

During this talk, Intel's Keith Packard called for a common API for GEM that can be used across multiple drivers. "I would love to see the GEM API extended to support discrete graphics cards," noted Packard. Keith though is quite confused over David Airlie's decision to use a GEM-ified TTM memory manager for the open-source ATI driver rather than fully using their Graphics Execution Manager.

About The Author
Michael Larabel is the principal author of Phoronix.com and founded the web-site in 2004 with a focus on enriching the Linux hardware experience and being the largest web-site devoted to Linux hardware reviews, particularly for products relevant to Linux gamers and enthusiasts but also commonly reviewing servers/workstations and embedded Linux devices. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics hardware drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated testing software. He can be followed via and or contacted via .
Latest Linux Hardware Reviews
  1. Scythe Mugen MAX
  2. Intel Core i7 5960X Haswell-E On Linux
  3. Intel 80GB 530 Series M.2 SSD On Linux
  4. With A New Motherboard, The Core i7 5960X Haswell-E Lights Up
Latest Linux Articles
  1. Intel P-State vs. CPUFreq Benchmarks On The i7-5960X
  2. RadeonSI GLAMOR Benchmarks With X.Org Server 1.16
  3. RadeonSI Gallium3D vs. Catalyst At 4K UHD On Linux
  4. MSAA RadeonSI Gallium3D Performance Preview
Latest Linux News
  1. Ubuntu Touch/Phone Reaches Its First RTM Image
  2. The KMS Mode-Setting Driver Was Imported For X.Org Server 1.17
  3. SNA & UXA Intel Benchmarks With X.Org Server 1.16
  4. Graphics Driver Changes Coming In The Linux 3.18 Kernel
  5. Tropico 5 Being Released For Linux Gamers This Week
  6. Eclipse IDE Starts Firing Up On Wayland's Weston
  7. OpenSUSE Announcement On SUSE's Recent Merger
  8. Valve Begins Publicly Tracking AMD Catalyst Linux Issues
  9. Digia Qt Spinoff Is Called "The Qt Company"
  10. GNOME 3.14 Makes More Progress In Running Natively On Wayland
Latest Forum Discussions
  1. New Group Calls For Boycotting Systemd
  2. Updated and Optimized Ubuntu Free Graphics Drivers
  3. Stop grabbing my keyboard :(
  4. Best Radeon for a Power Mac G5?
  5. New stress testing utility for GPU's
  6. Hd 6850
  7. support for first generation UVD blocks (RV6xx, RS780, RS880 and RV790)
  8. Nvidia joins the ranks of Apple and Microsoft