The Funtoo Linux project has transitioned to "Hobby Mode" and this wiki is now read-only.
Subarches
This page provides an overview of Funtoo Linux sub-architectures (also called subarches) designed for quick and easy reference. Funtoo Linux provides optimized installation images for all sub-architectures listed below. Clicking on a particular subarch will bring you to a detail page where you can learn more about that subarch and download a stage3 for installation.
Intel-Optimized 64-bit
These stages have been optimized for 64-bit Intel processor families. Stages optimized for AMD processors are also available -- see below.
| Generic 64 | generic_64 | The generic_64 subarch is designed to support all 64-bit PC-compatible CPUs (x86_64), from their initial release in 2003 to current. | -mtune=generic -O2 -pipe |
AMD-Optimized 64-bit
| Amd64-zen3 | amd64 | The amd64-zen3 subarch is optimized for AMD Ryzen and ThreadRipper 5-Series processors, as well as 3rd generation EPYC processors. See Zen 3 on Wikipedia for more information. | -march=znver3 -O2 -pipe |
| Amd64-zen2 | amd64 | The amd64-zen2 subarch is optimized for AMD Ryzen and EPYC processors series 3000 and above. | -march=znver2 -O2 -pipe |
| Amd64-zen | amd64 | The amd64-zen subarch is optimized for AMD Ryzen and EPYC processors. | -march=znver1 -O2 -pipe |
| Amd64-excavator | amd64 | The amd64-excavator subarch supports the AMD excavator microarchitecture, produced from 2015. It is the successor to the AMD Steamroller microarchitecture and will be the last revision of the 'bulldozer' family of processors, and is succeeded by AMD Ryzen processors. These processors also include the Bristol Ridge/Carizzo and Stoney Ridge APUs such as the AMD Athlon FX 9830P that include excavator cores along with integrated graphics cores. | -march=bdver4 -O2 -pipe |
| Amd64-steamroller | amd64 | The amd64-steamroller subarch supports the AMD steamroller microarchitecture, produced from early 2014. It is the successor to the AMD Piledriver microarchitecture. | -march=bdver3 -O2 -pipe |
| Amd64-piledriver | amd64 | The amd64-piledriver subarch supports the AMD Piledriver microarchitecture produced by AMD from mid-2012 through 2015, which is the successor to the AMD bulldozer microarchitecture. | -march=bdver2 -O2 -pipe |
| Amd64-bulldozer | amd64 | The amd64-bulldozer subarch supports the AMD bulldozer microarchitecture CPUs, which were released from late 2011 through the first quarter of 2012 as a replacement for K10 microarchitecture CPUs. | -march=bdver1 -O2 -pipe |
| Amd64-k10 | amd64 | The amd64-k10 subarch provides support for the AMD Family 10h processors, which were released in late 2007 as a successor to the AMD K8 series processors. | -march=amdfam10 -O2 -pipe |
| Generic 64 | generic_64 | The generic_64 subarch is designed to support all 64-bit PC-compatible CPUs (x86_64), from their initial release in 2003 to current. | -mtune=generic -O2 -pipe |
32-bit Optimized
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32-bit ARM Stages
The ARM architecture is used on a variety of specialty computing platforms, such as the Raspberry Pi. If you're new to Funtoo, it is suggested that you install an Intel or AMD stage3 on a PC-based laptop, desktop or server system first, and then "graduate" to ARM.
We recommend you use one of our board-optimized builds if possible:
| Raspberry Pi (Version 1) | raspi | This subarch is optimized specifically for the Raspberry Pi 1 Model B, Model A, Model B+, Model A+, Compute Module, Raspberry Pi Zero. | -O2 -pipe -march=armv6j -mtune=arm1176jzf-s -mfpu=vfp -mfloat-abi=hard |
| Raspberry Pi (Version 3) | raspi3 | This subarch is optimized specifically for the Raspberry Pi 2 Model B version 1.2 (Oct 2016), Raspberry Pi 3 Model B and Compute Module 3 (2017) | -O2 -pipe -march=armv7-a -mtune=cortex-a53 -mfpu=neon-vfpv4 -mfloat-abi=hard |
The following generic optimized builds are also available:
| Armv7a vfpv3 hardfp | armv7a_vfpv3_hardfp | This subarch supports the ARMv7-A architecture with hardware floating point. CPU support includes Cortex-A5 (with hardware FPU), Cortex-A7, A8, A9, A12, A15, A17, and Qualcomm Krait and other ARMv7-A CPUs. | -O2 -pipe -march=armv7-a -mfpu=vfpv3 -mfloat-abi=hard |
64-bit ARM Stages
The ARM64 architecture is used on a variety of specialty computing platforms, such as the ODROID C2. If you're new to Funtoo, it is suggested that you install an Intel or AMD stage3 on a PC-based laptop, desktop or server system first, and then "graduate" to ARM.
| Arm64 generic | arm64_generic | This subarch supports the generic ARM64 architecture (Armv8-a), and is suitable for use on Raspberry Pi 4. | -O2 -pipe -march=armv8-a |
How to Identify your CPU
There are a couple of ways to identify the type of CPU you have. One option is to use the lscpu command:
root # lscpu
If the lscpu command is unavailable, you can get similar information via /proc:
root # cat /proc/cpuinfo | grep "^model name" | uniq model name : Intel(R) Core(TM) i7-2640M CPU @ 2.80GHz
The cpuid command is another option and can provide other interesting information:
root # emerge cpuid; cpuid | tail -n 1
Search is your friend. Take the chip name gathered, then google wiki chipname to find the wikipedia article for your chip. The right hand column of your processors wiki article will list the microarchitecture.
example: searching for "amd phenom wiki" returns this article & the article says its "Microarchitecture K10"