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

Ubuntu Plans For Linux x32 ABI Support

Ubuntu

Published on 12 May 2012 11:31 AM EDT
Written by Michael Larabel in Ubuntu
22 Comments

With the x32 ABI for Linux finally coming together, Ubuntu developers are making plans to support this interesting ABI in the future.

The Linux x32 ABI is intended for x86_64 hardware, but rather than simply targeting x86_64, it attempts to blend the best of IA32 and x86_64. With x32 there is a 32-bit pointer size rather than 64-bit, which drops the memory usage and could yield performance improvements, while still allowing the x32-compiled code to take advantage of 64-bit registers, a larger register file, and other x86_64 features.

Support for Linux x32 was added to the Linux 3.4 kernel, GCC 4.7 supports targeting x32, support has landed within dpkg (via the 1.16.3 release), glibc 2.15 has x32 support, and the binutils support is in its trunk code-base at the moment.

Everything is coming together for x32 support in the upstream Linux components, but it's not known to what extent Canonical will support this architecture flavor in Ubuntu 12.10. Greater tests are going to be conducted after verifying all of the pieces to this puzzle are on the table. (I also plan to do some Linux i686 vs. x86_64 vs. x32 benchmarks this summer.)

Notes are found here for the Ubuntu Linux x32 discussion. Upstream Linux x32 information is available from its Google site.

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. Intel Xeon E5-1680 v3 & E5-2687W v3 Compared To The Core i7 5960X On Linux
  2. Intel 120GB 530 Series SSD Linux Performance
  3. Btrfs/EXT4/XFS/F2FS RAID 0/1/5/6/10 Linux Benchmarks On Four SSDs
  4. AMD's Windows Catalyst Driver Remains Largely Faster Than Linux Drivers
Latest Linux Articles
  1. Apple OS X 10.10 vs. Ubuntu 14.10 Performance
  2. Mesa 10.5-devel Brings Some Intel Haswell HD Graphics Changes Over Mesa 10.3
  3. NVIDIA vs. Nouveau Drivers With Linux 3.18 + Mesa 10.4-devel
  4. Is The Open-Source NVIDIA Driver Fast Enough For Steam On Linux Gaming?
Latest Linux News
  1. Meizu's Ubuntu Phone Not Expected Until Early Next Year
  2. DragonFlyBSD 4.0 Drops i386 Support, Improves Graphics
  3. Expensive "Free/Libre Software Laptop" Uses A NVIDIA GPU
  4. QEMU 2.2-rc3 Released, Final Release Pushed Back By Couple Days
  5. 64-bit ARM FreeBSD Support Is Taking Shape
  6. GCW Zero Starts Seeing New Game Releases
  7. Intel's Cherry Trail Delayed To Next Year
  8. Bq Introduces More Android Devices, But Still No Ubuntu Phones
  9. Qt 5.4 Release Candidate Expected Later This Week
  10. ArrayFire Accelerated Compute Library Open-Sourced
Latest Forum Discussions
  1. Updated and Optimized Ubuntu Free Graphics Drivers
  2. Hurrican SDL Port
  3. Roadmap to Catalyst 14.10 ?
  4. how to configure module phoromatic ?
  5. PulseAudio 6.0 Is Coming & Other Linux Audio Plans For The Future
  6. Debian Developer Resigns From The Systemd Maintainership Team
  7. Cant get working Kaveri APU - A10-7850k
  8. Script for Fan Speed Control