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Re: _AS_DETECT_BETTER_SHELL speedup
From: |
Noah Misch |
Subject: |
Re: _AS_DETECT_BETTER_SHELL speedup |
Date: |
Sat, 29 Jan 2005 06:34:19 -0800 |
User-agent: |
Mutt/1.5.6i |
On Sat, Jan 29, 2005 at 03:03:53PM +0100, Alexandre Duret-Lutz wrote:
> Noah> $ strace bash -c '{ exec foo; } 2>/dev/null' 2>&1 | grep clone
>
> You probably meant
>
> $ strace bash -c '{ foo; } 2>/dev/null' 2>&1 | grep clone
> clone(child_stack=0, flags=CLONE_CHILD_CLEARTID|CLONE_CHILD_SETTID|SIGCHLD,
> child_tidptr=0xb7f93bc8) = 19138
That is what I meant to test, but as you show I did not actually do so. Sorry.
It indeed turns out that `bash' and the V7 Bourne shell fork in all three cases,
`ash' and `pdksh' fork only in the first two, and `zsh' forks for none.
- Re: _AS_DETECT_BETTER_SHELL speedup (was: Re: Proposed doc updates), (continued)
- Re: _AS_DETECT_BETTER_SHELL speedup (was: Re: Proposed doc updates), Ralf Wildenhues, 2005/01/27
- Re: _AS_DETECT_BETTER_SHELL speedup, Paul Eggert, 2005/01/27
- Re: _AS_DETECT_BETTER_SHELL speedup, Ralf Wildenhues, 2005/01/27
- Re: _AS_DETECT_BETTER_SHELL speedup, Paul Eggert, 2005/01/28
- Re: _AS_DETECT_BETTER_SHELL speedup, Stepan Kasal, 2005/01/28
- Re: _AS_DETECT_BETTER_SHELL speedup, Ralf Wildenhues, 2005/01/28
- Re: _AS_DETECT_BETTER_SHELL speedup, Paul Eggert, 2005/01/28
- Re: _AS_DETECT_BETTER_SHELL speedup, Alexandre Duret-Lutz, 2005/01/29
- Re: _AS_DETECT_BETTER_SHELL speedup, Noah Misch, 2005/01/29
- Re: _AS_DETECT_BETTER_SHELL speedup, Alexandre Duret-Lutz, 2005/01/29
- Re: _AS_DETECT_BETTER_SHELL speedup,
Noah Misch <=
- Re: _AS_DETECT_BETTER_SHELL speedup, Stepan Kasal, 2005/01/31
- Re: _AS_DETECT_BETTER_SHELL speedup, Stepan Kasal, 2005/01/31
- Re: _AS_DETECT_BETTER_SHELL speedup, Noah Misch, 2005/01/31
- Re: _AS_DETECT_BETTER_SHELL speedup, Ralf Wildenhues, 2005/01/29
- Re: _AS_DETECT_BETTER_SHELL speedup, Paul Eggert, 2005/01/28
- Re: _AS_DETECT_BETTER_SHELL speedup, Stepan Kasal, 2005/01/29