From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pigeon.gentoo.org ([208.92.234.80] helo=lists.gentoo.org) by finch.gentoo.org with esmtp (Exim 4.60) (envelope-from ) id 1OndGt-0001Yu-ED for garchives@archives.gentoo.org; Mon, 23 Aug 2010 20:05:31 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 6BFC4E08C0; Mon, 23 Aug 2010 20:04:53 +0000 (UTC) Received: from mail-gw0-f53.google.com (mail-gw0-f53.google.com [74.125.83.53]) by pigeon.gentoo.org (Postfix) with ESMTP id 509A1E08F4 for ; Mon, 23 Aug 2010 20:04:53 +0000 (UTC) Received: by gwb1 with SMTP id 1so3496850gwb.40 for ; Mon, 23 Aug 2010 13:04:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:sender:received :in-reply-to:references:date:x-google-sender-auth:message-id:subject :from:to:content-type:content-transfer-encoding; bh=bZMchvqqnh2H0QgZQg5MMuieF9GmJNNz493F3thyC4s=; b=pgBzSm+N7K/jqTT3texR+92UPf4+lg2S+i3cTkU3z3g5O15oCHWGHmoB5diNMCv7U+ wnciYkk4JhINAji0Bn+ZTqDBbj/+ga48qj1NVHPJTc2V+V1E42ns4MFoK0f1n9odUpux z7/nBoAd8MSejbYMeHE21tzUqD9Nno46EIYp4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:sender:in-reply-to:references:date :x-google-sender-auth:message-id:subject:from:to:content-type :content-transfer-encoding; b=weCnF35XHwaFnqKDaT8xsv3zS9bNMwvJxMWi9oJWXb5cXhf6UDogDoTjnNZvlLmTBJ 5RvrFZdNF/pO9FahaCRtynzuuQ9LBStP7gTAmQG0Y9mXAe1oUrmTe827x+jh9IMcEf9p RrCQsZGepH3sDrccXjFlZ9L4370KCQ38/CZ6M= Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.239.193.3 with SMTP id g3mr241561hbi.135.1282593891726; Mon, 23 Aug 2010 13:04:51 -0700 (PDT) Sender: paul.hartman@gmail.com Received: by 10.239.159.12 with HTTP; Mon, 23 Aug 2010 13:04:51 -0700 (PDT) In-Reply-To: References: Date: Mon, 23 Aug 2010 15:04:51 -0500 X-Google-Sender-Auth: _JPSB5V1ZaxnyPV2nbGPpBnclAw Message-ID: Subject: Re: [gentoo-user] Reducing repeated checkings From: Paul Hartman To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: e7282c8d-80f9-4d09-aa3c-ff7cef02c3ac X-Archives-Hash: b258f1c259cdd0c9d1895c12bdf24155 On Mon, Aug 23, 2010 at 2:27 PM, Al wrote: > Some thoughts of the day > > With multicore machines compilation itself is relativly fast. The > bigger part of time meanwhile is spend for the system check before > compilation. Each =A0program das it again and 90% of the checks check > the same stuff. > > I wounder if efforts have been made to reduce this repeated checks. confcache It can (or used to be able to) be used with portage, though I think it is discouraged because it can cause some other problems. I used it for a while and never noticed any ill effects, but maybe I wasn't looking in the right places. I read enough about it being bad that I stopped using it out of fear. The better time-saver is probably parallel emerges (emerge -j) which can configure multiple packages at once. It also has quirks but works most of the time. :)