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 <gentoo-user+bounces-99762-garchives=archives.gentoo.org@lists.gentoo.org>) id 1MjiYF-0007O2-DO for garchives@archives.gentoo.org; Fri, 04 Sep 2009 23:50:43 +0000 Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 5BCADE09AE; Fri, 4 Sep 2009 23:50:42 +0000 (UTC) Received: from mail-yx0-f191.google.com (mail-yx0-f191.google.com [209.85.210.191]) by pigeon.gentoo.org (Postfix) with ESMTP id 3A84DE09AE for <gentoo-user@lists.gentoo.org>; Fri, 4 Sep 2009 23:50:42 +0000 (UTC) Received: by yxe29 with SMTP id 29so4747955yxe.16 for <gentoo-user@lists.gentoo.org>; Fri, 04 Sep 2009 16:50:41 -0700 (PDT) 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 :content-transfer-encoding; bh=R1cbCdv3f3+hPpCsRxa2OTCNI0CqMVqCY9XdQ4bsWo0=; b=YYSVO0LIpKhgAjPwcDlF5B0Olu2CehvahZ+qSiLnSH2xtkABklyFjvL8wZVOPDcJVE RpF9ff8ZoCkZRXlDrLhpoNhf0CddAb/jn9F+fpwFdQTq/gODHreJ4KwiRHjPW9RbRErt 47vLAHvlB4/QhuhRB2X8pGKphafBwOxfyDD4s= 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:content-transfer-encoding; b=McLkt6/KdHZNqXd5+DB9a08Fw3BVS2dFfZmNWs8qjR/4zlepKa8BgdBElVPSmCNZKK LrfuvBbNxIe8zde1nRoTKDoB/DPeIMDRlwsEhNwY1piBB3JD3vN8PydjPUWpwmaibZh0 /2dZ0Znx3wpBP+sWkgUYv+rehcMVhnlFuRXmg= Precedence: bulk List-Post: <mailto:gentoo-user@lists.gentoo.org> List-Help: <mailto:gentoo-user+help@lists.gentoo.org> List-Unsubscribe: <mailto:gentoo-user+unsubscribe@lists.gentoo.org> List-Subscribe: <mailto:gentoo-user+subscribe@lists.gentoo.org> List-Id: Gentoo Linux mail <gentoo-user.gentoo.org> X-BeenThere: gentoo-user@lists.gentoo.org Reply-to: gentoo-user@lists.gentoo.org MIME-Version: 1.0 Received: by 10.150.115.8 with SMTP id n8mr19600430ybc.64.1252108241831; Fri, 04 Sep 2009 16:50:41 -0700 (PDT) In-Reply-To: <200909050143.41702.volkerarmin@googlemail.com> References: <h7s898$hup$1@ger.gmane.org> <200909050143.41702.volkerarmin@googlemail.com> Date: Fri, 4 Sep 2009 16:50:41 -0700 Message-ID: <5bdc1c8b0909041650m4a757e92g70e02acc8b387062@mail.gmail.com> Subject: Re: [gentoo-user] Kon Colivas is working again on a new scheduler for Desktop/Multimedia/Gaming PCs From: Mark Knecht <markknecht@gmail.com> To: gentoo-user@lists.gentoo.org Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Archives-Salt: 8eade64d-8eda-483b-989c-e2c008600b54 X-Archives-Hash: b33f25991152dc6d6055262b24a67da2 On Fri, Sep 4, 2009 at 4:43 PM, Volker Armin Hemmann<volkerarmin@googlemail.com> wrote: > On Samstag 05 September 2009, Nikos Chantziaras wrote: >> I recently stumbled upon an LWN article that mentioned Con Kolivas is >> working on a new kernel scheduler for Desktop/Multimedia/Gaming PCs >> called "BFS": >> >> =C2=A0 =C2=A0 http://lwn.net/Articles/350100 >> >> Well, I've tried it. =C2=A0I wrote my experiences with it here: >> >> =C2=A0 =C2=A0 http://lwn.net/Articles/350820 >> >> If you're feeling adventurous, you might want to give that one a try. In >> my case, it helped immensely, especially with sound latency and skips >> and other artifacts during real-time playback (I was not using an RT >> kernel before that though). =C2=A0Note that BFS has been updated to 0.20= 6 >> since I wrote that. >> >> The patch to kernel 2.6.30 and docs can be found at: >> >> =C2=A0 =C2=A0 http://ck.kolivas.org/patches/bfs >> > > and what is with people like me - who for some magical reasons don't have > problems with skips or latency? Without using rt-kernels of course.- > > Fire up Ardour and record 32 channels of audio at the same time set to <5mS latency using Jack and see if whatever version of the mainline kernel you are running doesn't have. I've recorded as many as 48 channels @ 48KHz across three hard drives at less than 2mS on my main recording platform, but that requires rt-sources. I doubt I could do better than about 25mS with vanilla-sources. Just my experience, Mark