From owner-freebsd-hackers@FreeBSD.ORG Mon Mar 17 23:38:39 2008 Return-Path: Delivered-To: hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id A08431065671 for ; Mon, 17 Mar 2008 23:38:39 +0000 (UTC) (envelope-from mozolevsky@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.169]) by mx1.freebsd.org (Postfix) with ESMTP id 207E08FC1C for ; Mon, 17 Mar 2008 23:38:38 +0000 (UTC) (envelope-from mozolevsky@gmail.com) Received: by ug-out-1314.google.com with SMTP id y2so810285uge.37 for ; Mon, 17 Mar 2008 16:38:37 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; bh=l22WZODY2itKazjjmwfnOBPRNNOn2Fhj4UEIaQY9OPo=; b=d49Cf1Wf7vZvOB7gL2B8jIMEXfMRFOGruQiKHh3EuXBc/+EhmMh3mMhOZftALTO8CZvacU8gDJLrnp8/3M6r1QtAVEz9cjDRXEVSgvQC8YP5zZ+5PoUjErTGnPayKVviW3tX+d1L5/RppMI+XwhlqWVRuUrSKF2y0nGqXZi+yYY= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=message-id:date:from:sender:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references:x-google-sender-auth; b=kreKNGZxxjv1KRAKRxXwLQS4b5luwGPUVTErNA3kDKCR3+dmeCtxdZQGveFxJaQ+c3upQ5dPzgF9Dvf6mzMiAf/N4UD3qT9iurxnSUmK0zgmdbtI5V+aeAM9eTMGqg8pBobnVyo7QmOWrsNZ2S6qp1+VVwWM4skwdaSl3m4uBvk= Received: by 10.67.86.5 with SMTP id o5mr3235500ugl.50.1205797117712; Mon, 17 Mar 2008 16:38:37 -0700 (PDT) Received: by 10.66.248.11 with HTTP; Mon, 17 Mar 2008 16:38:37 -0700 (PDT) Message-ID: Date: Mon, 17 Mar 2008 23:38:37 +0000 From: "Igor Mozolevsky" Sender: mozolevsky@gmail.com To: "Murray Stokely" In-Reply-To: <2a7894eb0803171549pe0c2fffqa23ed6813f45a390@mail.gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <2a7894eb0802200020g5e4f9ff8p7d3044bbec261706@mail.gmail.com> <2a7894eb0803171515l7a0e1acld84b793aa3c9cc6c@mail.gmail.com> <2a7894eb0803171549pe0c2fffqa23ed6813f45a390@mail.gmail.com> X-Google-Sender-Auth: d238708749bb708b Cc: hackers@freebsd.org Subject: Re: Summer of Code 2008 Project Ideas X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Mar 2008 23:38:40 -0000 On 17/03/2008, Murray Stokely wrote: > The FreeBSD Project was again accepted as a mentoring organization for > the Google Summer of Code. The student application period will begin > next week so if you have any ideas for great student projects, please > send them to soc-admins@FreeBSD.org or post them here for discussion. [snip] How about tick()-less kernel - replace dependance on regular hearbeat with a delta-queue that could be used to program the time of the next scheduled interrupt? You could start with the delta-queue pretending to be a regular heart beat then work on changing deltas between events... I'm sure there was a mention of something similar in Linux... Cheers, Igor