Difference between pages "Talk:Metro Quick Start Tutorial" and "User:Ermo"
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(moved to http://docs.funtoo.org/wiki/Talk:Metro) |
m (→Using dash as the default POSIX compliant /bin/sh in Funtoo Linux: less memory.) |
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== Using dash as the default POSIX compliant /bin/sh in Funtoo Linux == | |||
* Dash requires less memory and is faster than Bash (so all scripts referencing #!/bin/sh will run faster) | |||
** 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 | |||
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 |
Latest revision as of 21:30, December 27, 2010
Using dash as the default POSIX compliant /bin/sh in Funtoo Linux
- Dash requires less memory and is faster than Bash (so all scripts referencing #!/bin/sh will run faster)
- 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 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: