Date: Wed, 10 Jun 2009 16:52:36 -0400 From: Wesley Shields <wxs@FreeBSD.org> To: Mel Flynn <mel.flynn+fbsd.ports@mailing.thruhere.net> Cc: ports@freebsd.org, python@freebsd.org, freebsd-ports@freebsd.org, miwi@freebsd.org Subject: Re: Python 2.6 update with portmaster Message-ID: <20090610205236.GD65705@atarininja.org> In-Reply-To: <200906101244.43479.mel.flynn%2Bfbsd.ports@mailing.thruhere.net> References: <20090610132647.GC40713@atarininja.org> <200906101244.43479.mel.flynn%2Bfbsd.ports@mailing.thruhere.net>
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On Wed, Jun 10, 2009 at 12:44:42PM -0800, Mel Flynn wrote:
> On Wednesday 10 June 2009 05:26:47 Wesley Shields wrote:
>
> > It will be quite slow compared to using pkg_which (the normal method) so
> > be patient.
>
> Does pkg_which use the pkgdb? If so, maybe we could have pkg_info grow a cache
> for future encounters, or we can create one:
My guess is that pkg_which is using pkgdb, which is why it is
significantly faster.
> % grep -v '^@' /var/db/pkg/*/+CONTENTS >/tmp/pkg_info.cache
> % FOUND=`sed -ne 's,^/var/db/pkg/\(.*\)/+CONTENTS:lib/python2.6/site-
> packages/xcbgen/error.py$,\1,p' /tmp/pkg_info.cache`; echo $FOUND
> xcb-proto-1.4
>
> So:
> 's,^${PKG_DBDIR}/\(.*\)/+CONTENTS:$$f$$,\1,p'
I think there is a SoC project in the works to make our pkg utilities
much better. I don't know any of the details but I can only hope that
speed is one of the things being improved.
> > [1]: http://people.freebsd.org/~wxs/python26-portmaster.diff
>
> What's this for?
> +JOBS= sysctl -n kern.smp.cpus
>
> Should be != if it's gonna be used, but it's not referenced anywhere else
> that I can see.
It's used in XARGS_CMD to provide a bit of parallelism in an effort to
be a bit faster. In my opinion the number can be increased much further
than kern.smp.cpus but I'm not in a position to figure out how far to
push it. The value used is better than nothing.
-- WXS
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