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

Ubuntu Is Going After A New Linux Kernel API

Linux Kernel

Published on 29 August 2013 04:24 PM EDT
Written by Michael Larabel in Linux Kernel
79 Comments

In large part because of Canonical's new focus around Ubuntu Touch on phone/tablet devices, the Ubuntu developers are wanting a new revocable memory API for the Linux kernel to help in low-memory scenarios.

While Canonical isn't generally a company that's well received for being a large contributor to the upstream Linux kernel, during the virtual Ubuntu Developer Summit today they proposed a new API for revocable kernel memory. While they have proposed it, they are still early on and apparently haven't even prototyped any code. Coming out of today's session, one of their work items is, "Check with upstream on status and if we can come up with a kernel that has got the revocable memory feature."

The revocable kernel memory feature they're after is for use in low-memory environments where an application can flag a section of its memory as being revocable and when the system is running low on RAM it can then reclaim that memory rather than crashing, closing out the program, or swapping to disk. The program would then still be able to live on and hopefully re-generate its data when needed.

If enough applications were to support and take advantage of this kernel API, it would largely benefit phone/tablet users where there are generally limited amounts of RAM -- but then again with today's high-end phones we're already seeing 2GB become standard. Android currently offers similar functionality with their Ashmem shared memory feature.

Those wishing to learn more can watch the vUDS video embedded below.


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 News
  1. OpenWRT 15.05 Preparing Improved Security & Better Networking
  2. Using The New LLVM/Clang OpenMP Support
  3. Zapcc Claims To Be A "Much Faster C++ Compiler"
  4. Godot 1.1 Engine Release Brings New 2D Engine
  5. Intel VA-API Driver 1.6 Is Coming
  6. Canonical Is Reportedly Considering An IPO
  7. GNOME 3.18 - GTK3 Now Supports RandR 1.5
  8. Fedora 22 Risks Being Delayed Beyond Next Week
  9. Systemd 220 Has Finally Been Released
  10. LibreOffice 5.0 Beta 1 Released
  11. Allwinner Publishes New CedarX Open-Source Code
  12. ACPI 6 Non-Volatile Memory Device Support / NFIT / LIBND For Linux
Latest Articles & Reviews
  1. Btrfs RAID 0/1 Benchmarks On The Linux 4.1 Kernel
  2. The State Of Various Firefox Features
  3. Intel Iris Graphics Performance With Mesa 10.6
  4. Fedora Workstation 22 Is Looking Great, Running Fantastic
Most Viewed News This Week
  1. The Linux 4.0 Kernel Currently Has An EXT4 Corruption Issue
  2. Rust 1.0 Language Officially Released
  3. AMDGPU Open-Source Driver Code Continues Maturing
  4. Oculus Rift Suspends Linux Development To Focus On Windows
  5. Wine 1.7.43 Works On Desktop Shell Window Support
  6. Spec Ops: The Line Is The Latest Linux Shooter
  7. RadeonSI Gallium3D Driver To Be Enabled For Android
  8. Microsoft Open-Sources The Windows Communication Foundation