From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from astoria.ccjclearline.com (astoria.ccjclearline.com [64.235.106.9]) by mail.openembedded.org (Postfix) with ESMTP id B124D71F1B for ; Wed, 25 Feb 2015 08:41:04 +0000 (UTC) Received: from [99.240.204.5] (port=36879 helo=crashcourse.ca) by astoria.ccjclearline.com with esmtpsa (TLSv1:AES128-SHA:128) (Exim 4.80) (envelope-from ) id 1YQXWg-0000Ig-2e; Wed, 25 Feb 2015 03:41:02 -0500 Date: Wed, 25 Feb 2015 03:41:02 -0500 (EST) From: "Robert P. J. Day" X-X-Sender: rpjday@localhost To: Richard Purdie In-Reply-To: <1424853407.26813.29.camel@linuxfoundation.org> Message-ID: References: <1424853407.26813.29.camel@linuxfoundation.org> User-Agent: Alpine 2.11 (LFD 23 2013-08-11) MIME-Version: 1.0 X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - astoria.ccjclearline.com X-AntiAbuse: Original Domain - lists.openembedded.org X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - crashcourse.ca X-Source: X-Source-Args: X-Source-Dir: Cc: OE Core mailing list Subject: Re: on current linux distros, what are potential candidates for ASSUME_PROVIDED? X-BeenThere: openembedded-core@lists.openembedded.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Patches and discussions about the oe-core layer List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 25 Feb 2015 08:41:05 -0000 Content-Type: TEXT/PLAIN; charset=US-ASCII On Wed, 25 Feb 2015, Richard Purdie wrote: > On Wed, 2015-02-25 at 03:25 -0500, Robert P. J. Day wrote: > > for the sake of reducing build time in the classroom, what are some > > of the potential (and relatively safe) candidates to add to > > ASSUME_PROVIDED for a build from scratch? > > This path is fraught with danger to be honest. There are some things > which are "safe" like subversion and git but they don't make that much > difference to a build and there are not as many as you'd think. > > The biggest difference you can make is an sstate cache you share amongst > the pupils. The time is spent: > > a) building gcc > b) building libc > c) building gettext > d) building glib > > each of these is a bottle neck which then opens up a new set of targets > as none of them are ASSUME_PROVIDED material. ok, fair enough. rday -- ======================================================================== Robert P. J. Day Ottawa, Ontario, CANADA http://crashcourse.ca Twitter: http://twitter.com/rpjday LinkedIn: http://ca.linkedin.com/in/rpjday ========================================================================