Date: Fri, 18 Jul 2008 07:26:01 +1000 From: Peter Jeremy <peterjeremy@optushome.com.au> To: David Naylor <naylor.b.david@gmail.com> Cc: freebsd-current@freebsd.org Subject: Re: rc improvements (wanted?) Message-ID: <20080717212601.GZ62764@server.vk2pj.dyndns.org> In-Reply-To: <200807172056.08835.naylor.b.david@gmail.com> References: <200807172056.08835.naylor.b.david@gmail.com>
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[-- Attachment #1 --] On 2008-Jul-17 20:56:04 +0200, David Naylor <naylor.b.david@gmail.com> wrote: >* Add stagnation or parallel support (all scripts in a stage can be executed >concurrently without conflict) This sounds like a worthwhile improvement for most cases. Note that it probably needs some degree of rate limiting - just forking off dozens of startup scripts may be counter-productive - especially if they are I/O bound. >The main reason for this work was to increase start-up time (on the userland >side) by running as many scripts concurrently as possible. 'Reduce' maybe... >method but that would mean moving most of the controlling logic into a >binary). I don't see how to safely do all the parallelisation using scripting tools that are available in the base system >[[Side note: I stopped short of actually field testing the concurrent >changes to rc (rcorder and the simplifications to rc scripts works]] Ummm,.. Unless I've misunderstood something, you have just said that your main driver for this was implementing concurrency but you haven't actually tested that. -- Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.9 (FreeBSD) iEYEARECAAYFAkh/uOkACgkQ/opHv/APuIcR+ACeJBNjPdKm0u/puJ4aGI4lGQI5 SNsAnA8qCuI/hpa9beQQTpbsmrqYN8Jt =nZlk -----END PGP SIGNATURE-----help
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