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 Benchmarking Platform
Phoromatic Test Orchestration

Intel Works On Intermediate Pixel Storage

Intel

Published on 31 May 2013 03:48 PM EDT
Written by Michael Larabel in Intel
3 Comments

A new feature being worked on for the Intel DRM Linux kernel graphics driver is IPS. Short for Intermediate Pixel Storage, this feature should allow modern Intel HD graphics cores to let the CPU enter deeper PC states to increase power-savings.

Paulo Zanoni wrote in the patch series, "Intermediate Pixel Storage is a feature that should reduce the number of times the display engine wakes up memory to read pixels, so it should allow deeper PC states. IPS can only be enabled on ULT pipe A with 8:8:8 pipe pixel formats."

The difference in sleep states when using Intermediate Pixel Storage should be quite noticeable. "With eDP 1920x1080 and correct watermarks but without FBC this moves my PC7 residency from 2.5% to around 38%."

The FBC feature talked about is Frame-Buffer Compression and should also lead to letting the CPU/GPU sleep longer. Hopefully the IPS support will be primed and ready for merging with FBC into the Linux 3.11 kernel.

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 Articles & Reviews
  1. Sub-$20 802.11n USB WiFi Adapter That's Linux Friendly
  2. The Lenovo T450s Is Working Beautifully With Linux
  3. Linux 4.0 SSD EXT4 / Btrfs / XFS / F2FS Benchmarks
  4. Linux 4.0 Hard Drive Comparison With Six File-Systems
  5. Lenovo ThinkPad T450s Broadwell Preview
  6. How Open-Source Allowed Valve To Implement VULKAN Much Faster On The Source 2 Engine
Latest Linux News
  1. AMD Releases New "AMDGPU" Linux Kernel Driver & Mesa Support
  2. A Gigabyte Sandy/Ivy Bridge Motherboard Now Handled By Coreboot
  3. Linux 3.16 Through Linux 4.0 Performance Benchmarks
  4. Intel's Windows Driver Now Supports OpenGL 4.4, Linux Driver Still With OpenGL 3.3
  5. DRM Graphics Updates Sent In For The Linux 4.1 Kernel
  6. More eBPF Improvements Heading To Linux 4.1
  7. LLDB Is Getting Into Shape For Linux 64-bit Debugging
  8. Wine-Staging 1.7.41 Works On Improved Debugging Support
  9. GNOME 3.18 Release Schedule: 23 September Release
  10. Library Operating System (LibOS) For Linux Still Being Pursued
Most Viewed News This Week
  1. Nouveau: NVIDIA's New Hardware Is "VERY Open-Source Unfriendly"
  2. Linux 4.1 Brings Many Potentially Risky x86/ASM Changes
  3. Microsoft Announces An LLVM-Based Compiler For .NET
  4. LibreOffice 4.5 Bumped To Become LibreOffice 5.0
  5. Linux Audio Is Being Further Modernized With The 4.1 Kernel
  6. KDBUS Is Taking A Lot Of Heat, Might Be Delayed From Mainline Linux Kernel
  7. VirtualBox 5.0 Beta 2 Released
  8. Mozilla Start Drafting Plans To Deprecate Insecure HTTP