Difference between pages "User:Ermo" and "Amd64-jaguar"

(Difference between pages)
m (Using dash as the default POSIX compliant /bin/sh in Funtoo Linux: less memory.)
 
 
Line 1: Line 1:
== Using dash as the default POSIX compliant /bin/sh in Funtoo Linux ==
+
{{Subarch
 +
|CPU Family=64-Bit AMD Processors
 +
|subarch=amd64-jaguar
 +
|CHOST=x86_64-pc-linux-gnu
 +
|CFLAGS=-march=btver2 -O2 -pipe
 +
|USE=mmx sse sse2 sse3 sse4 3dnow 3dnowext
 +
|CPU Features=low-power
 +
|Description=
 +
}}
 +
The '''amd64-jaguar''' (also called AMD Family 16h) subarch supports the  [[Wikipedia:Jaguar (microarchitecture)|AMD jaguar microarchitecture]], which is targeted at low-power devices, including notebooks, tablets and small form-factor desktops and servers. It is perhaps most well-known for being the microarchitecture used for the [[Wikipedia:Playstation 4|Playstation 4]] and [[Wikipedia:Xbox One|Xbox One]], which each use custom 8-core Jaguar APUs.
 +
Socketed Jaguar APUs use the [[Wikipedia:AM1 Socket|AM1 socket]], and  [[Wikipedia:Socket_FT3|FT3 socket]] for mobile devices. G-series [[Wikipedia:System_on_a_chip|"system on a chip" (SoC)]] APUs are available for non-socketed devices such as tablets and embedded system boards.
  
* Dash requires less memory and is faster than Bash (so all scripts referencing #!/bin/sh will run faster)
+
Desktop Jaguar APUs include the [[Wikipedia:List_of_AMD_accelerated_processing_unit_microprocessors#.22Kabini.22.2C_.22Temash.22_.282013.2C_28_nm.29|Kabini A-series APUs and Temash E-series APUs]], such as the Athlon 5150 and 5350 APUs, and Sempron 2650 and 3850.
** In particular, Funtoo Linux systems will boot faster w/Dash than with Bash
+
** Configure scripts will be faster (every little thing counts)
+
** from 'man 3 system':
+
system() executes a command specified in command by calling /bin/sh -c command,
+
and returns after the command has been completed.
+
* Bash called via /bin/sh still supports Bash-isms, which is bad for scripts that are supposed to be portable (portability is a virtue in Funtoo Linux)
+
* Dash has fewer dependencies than Bash (sort of cool).
+
  
< ermo > So in that sense, using dash as /bin/sh aligns with one of the original core goals
+
Amd64-jaguar subarches use the MOVBE instruction which is not available on amd64-bulldozer, amd64-piledriver or amd64-steamroller. They are thus not instruction-compatible with any of these subarches.
          for gentoo (and now funtoo) re. 'it would just allow for a leaner faster system'
+
< drobbins > ermo: right, it is a logical move for us
+
< drobbins > performance is not the main goal, but it is *a* goal
+
< drobbins > it is not something to be pursued at the expense of stability, reliability, etc.
+
 
+
'''References:'''
+
* http://lists.debian.org/debian-devel/2009/06/msg00767.html
+
* http://www.debian.org/doc/debian-policy/ch-files.html#s10.4
+
* https://wiki.ubuntu.com/DashAsBinSh
+

Revision as of 07:03, December 20, 2014

This page lists CPU-optimized builds of Funtoo Linux for amd64-jaguar 64-Bit AMD Processors.


CPU Information

CHOSTx86_64-pc-linux-gnu
CFLAGS-march=btver2 -O2 -pipe
CPU_FLAGS (see CPU_FLAGS for more info)aes avx mmx mmxext popcnt sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3

Download

This section lists the Funtoo Linux builds currently available for download for amd64-jaguar. A full list of Funtoo Linux builds can be found on the Subarches page.

BuildVariantLatest BuildDownloadBrowse Mirror
funtoo-current standard 2015-08-31
funtoo-current pure64 2015-09-01
funtoo-current hardened 2015-08-31
funtoo-current pure64+hardened 2015-09-01
Important

Do you want a particular build of Funtoo Linux but do not see it here? Let us know what you need, and we will likely add it for you. Create a bug report requesting the build you need. To see what options there are, see our Intel Core i7 subarch page, which has a lot of builds listed.

Detailed Description

The amd64-jaguar (also called AMD Family 16h) subarch supports the AMD jaguar microarchitecture, which is targeted at low-power devices, including notebooks, tablets and small form-factor desktops and servers. It is perhaps most well-known for being the microarchitecture used for the Playstation 4 and Xbox One, which each use custom 8-core Jaguar APUs. Socketed Jaguar APUs use the AM1 socket, and FT3 socket for mobile devices. G-series "system on a chip" (SoC) APUs are available for non-socketed devices such as tablets and embedded system boards.

Desktop Jaguar APUs include the Kabini A-series APUs and Temash E-series APUs, such as the Athlon 5150 and 5350 APUs, and Sempron 2650 and 3850.

Amd64-jaguar subarches use the MOVBE instruction which is not available on amd64-bulldozer, amd64-piledriver or amd64-steamroller. They are thus not instruction-compatible with any of these subarches.