From owner-freebsd-hackers@FreeBSD.ORG Thu Dec 10 15:18:00 2009 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2F2E5106568F for ; Thu, 10 Dec 2009 15:18:00 +0000 (UTC) (envelope-from linda.messerschmidt@gmail.com) Received: from ey-out-2122.google.com (ey-out-2122.google.com [74.125.78.26]) by mx1.freebsd.org (Postfix) with ESMTP id B7D4B8FC22 for ; Thu, 10 Dec 2009 15:17:59 +0000 (UTC) Received: by ey-out-2122.google.com with SMTP id 22so54173eye.9 for ; Thu, 10 Dec 2009 07:17:58 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:content-type; bh=knGZp0+3LC2cXu4xAFUUVX3VKwxOM4vpjSALhkkTx3Q=; b=l8xqPK/6PBOMrvzhREa9IEHj7IpxmXjJCCHuoWCYUrhe5+r0Hzw8rSA+8+WvvS/k1e HFgNc5uguCaOcjkF8j77rfab6OrMTmV0xL6KMcVghS0V3mKiJ44bc5lOXh8yL35X5RyW MSNNspF+LPA5lbEp4uf/v79xvPhpk/NwFlIC4= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=sBoXxNEyljwPNrfmVL0cmFV8Sk6SQ+iS9qt8E8FEy73tieYtkdpZ0T+dOmaI5QXfTD 97Wdv+dRCg5zxW8Yj1IOoZfDyBxxdMaY0R8AWtWoQCwxbG+LZsq2zzv6o7eFSksJqUS2 i4gGl+CR3xS2Jo6Lg0waCyhdUlHO34nXiF/6w= MIME-Version: 1.0 Received: by 10.216.90.67 with SMTP id d45mr25292wef.42.1260458278211; Thu, 10 Dec 2009 07:17:58 -0800 (PST) In-Reply-To: <20091210145052.GX20668@cicely7.cicely.de> References: <237c27100911260714x2fcb194ew1e6ce11e764efd08@mail.gmail.com> <200912090907.33433.jhb@freebsd.org> <20091210145052.GX20668@cicely7.cicely.de> Date: Thu, 10 Dec 2009 10:17:58 -0500 Message-ID: <237c27100912100717x3f1cda23n2865457e43e226f@mail.gmail.com> From: Linda Messerschmidt To: freebsd-hackers@freebsd.org Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: Superpages on amd64 FreeBSD 7.2-STABLE 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: Thu, 10 Dec 2009 15:18:00 -0000 On Thu, Dec 10, 2009 at 9:50 AM, Bernd Walter wrote: > I obviously don't have enough clue about this to understand those details. > Hope that someone can enlighten me. I think what he is saying is that they are aware that the current situation is not ideal. vfork() is suggested as a workaround, definitely not a fix. The problem is that there is limited effort available to be put into the VM subsystem and since mostly-working superpages is still *way* better than no superpages, that limited effort is best spent elsewhere at present, presumably dealing with other, bigger VM subsystem issues. Hope I got that right. :)