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 Is Working On A Linux Networking Stack For Small Systems

Intel

Published on 06 May 2014 02:18 PM EDT
Written by Michael Larabel in Intel
21 Comments

For supporting Linux networking on very small embedded systems like the Intel Quark, developers at Intel are working on a lightweight networking stack to fit on such systems.

Andi Kleen at Intel announced their work on a smaller networking stack to fit on systems like the Quark where there might only be a few megabytes of RAM and flash storage. Andi wrote, "There has been a lot of interest recently to run Linux on very small systems, like Quark systems. These may have only 2-4MB memory. They are also limited by flash space. One problem on these small system is the size of the network stack. Currently enabling IPv4 costs about 400k in text, which is prohibitive on a 2MB system, and very expensive with 4MB."

The Linux networking stack within the kernel is very heavy due to being very feature rich, so Andi has been working on making it optionally lighter by removing some features that shouldn't be needed by clients in such systems. Besides stubbing out code within the networking area, the Intel kernel is also depending upon their earlier work with Link-Time Optimizations for the Linux kernel to allow the GCC compiler to remove unused code automatically.

Andi stubbed out some networking code to still yield a powerful TCP/IP stack while being a lot lighter. "With these changes I can get a fully featured network stack down to about 170k with LTO. Without LTO there are also benefits, but somewhat less."

The networking options come down to having the full networking stack, generating only a client-only subset of features, and then having a minimal networking subset of features for embedded systems with a special user-land.

Kleen announced this work on the kernel mailing list and is currently seeking comments and review of the changes.

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. ASRock X99 Extreme3 Is An Affordable Choice For Linux Users
  2. A Walkthrough Of The New 32 System Open-Source Linux Benchmarking Test Farm
  3. Habey MITX-6771: Mini-ITX Board With Quad-Core J1900 Bay Trail
  4. OCZ Vector 150 SSD On Linux
Latest Linux Articles
  1. 17-Way Linux Graphics Card Comparison With Civilization Beyond Earth
  2. AMD Kaveri: Open-Source Radeon Gallium3D vs. Catalyst 14.12 Omega Driver
  3. 12-Way AMD Catalyst 14.12 vs. NVIDIA 346 Series Linux GPU Comparison
  4. AMD Catalyst 14.12 Omega Driver Brings Mixed Results For Linux Users
Latest Linux News
  1. Live Patching Support Planned For Linux 3.20/4.0 Kernel
  2. Features Of The Linux 3.19 Kernel: Graphics & Disks Rule
  3. Orange Pi Is The Latest Raspberry Pi Inspired ARM Board
  4. An Open-Source Hardware Ambient Light Sensor Is Brought Up
  5. Heterogeneous Memory Management Is Coming Along For The Linux Kernel
  6. NTP Is The Latest Project Struck By Security Issues
  7. LDC 0.15.1 Released For A D Compiler In LLVM
  8. Fedora Doesn't Yet Enable F2FS File-System Support
  9. XZ 5.2 Adds New Multi-Threaded Options
  10. Intel 2.99.917 X.Org Driver Released, 3.0 Release Finally Near
Latest Forum Discussions
  1. Looking for an nVidia GPU, but not sure how well they are supported.
  2. No OpenCL with latest driver updates on Ubuntu?
  3. Need some hand holding with upgrading xserver
  4. Maker3D - create your 3D RPG
  5. FPS capped on Linux (AMD fglrx drivers)
  6. Speeding up systemd networking service
  7. Major Performance Breakthrough Discovered For Intel's Mesa Driver
  8. Are there an app using HSA ?