Date: Thu, 27 Apr 2000 13:36:11 +1000 From: Peter Jeremy <peter.jeremy@alcatel.com.au> To: hackers@FreeBSD.ORG Subject: Re: commit MAKE_SHELL? Message-ID: <00Apr27.133611est.115207@border.alcanet.com.au>
next in thread | raw e-mail | index | archive | help
On Tue, 25 Apr 2000 23:00:07 -0700, Doug Barton <Doug@gorean.org> wrote:
>Anatoly Vorobey wrote:
>
>> Well, *should* we have a built-in "test"? I gather the original ash didn't
>> have it due to the KIS principle. But if it speeds things up considerably,
>> it's not much of a bloat, is it? I'd volunteer to write it.
>
> Unfortunately, the only way to tell for sure would be to do a couple
>make worlds with the current sh, then do some with super-sh with the
>built in 'test'.
A somewhat quicker (though not quite as accurate) check is to do a
make buildworld with accounting on. Based on this, the most-executed
(>1000) commands (after merging aliases) are:
23743 cpp
23912 sh sh*
17060 cc
15583 as
13689 cc1
17934 test [
12544 ld
11725 mv
7366 make
4904 rm
2999 ln
2160 sed
2102 gzip
1454 mkdir
(There was some other system activity, but I don't think it would
affect the results).
This suggests that making test/[ a builtin would probably help, but
probably not nearly as much as reducing the number of shells exec'd
(ie making make(1) a bit smarter).
Peter
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?00Apr27.133611est.115207>