From owner-svn-src-head@freebsd.org Thu Sep 5 10:49:12 2019 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id CFB25E2D0E; Thu, 5 Sep 2019 10:49:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "Let's Encrypt Authority X3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 46PHVw5059z4ZGd; Thu, 5 Sep 2019 10:49:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org (repo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:0]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 8A2BE2D8C; Thu, 5 Sep 2019 10:49:12 +0000 (UTC) (envelope-from hselasky@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id x85AnCEi071769; Thu, 5 Sep 2019 10:49:12 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x85AnCWT071768; Thu, 5 Sep 2019 10:49:12 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201909051049.x85AnCWT071768@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Thu, 5 Sep 2019 10:49:12 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r351847 - head/sys/dev/sound/pcm X-SVN-Group: head X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: head/sys/dev/sound/pcm X-SVN-Commit-Revision: 351847 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 05 Sep 2019 10:49:12 -0000 Author: hselasky Date: Thu Sep 5 10:49:12 2019 New Revision: 351847 URL: https://svnweb.freebsd.org/changeset/base/351847 Log: Decrease the default audio playback latency to a maximum of 21.3ms. This significantly improves the audio playback response time. Discussed with: mav@ MFC after: 1 week Sponsored by: Mellanox Technologies Modified: head/sys/dev/sound/pcm/channel.h Modified: head/sys/dev/sound/pcm/channel.h ============================================================================== --- head/sys/dev/sound/pcm/channel.h Thu Sep 5 09:57:20 2019 (r351846) +++ head/sys/dev/sound/pcm/channel.h Thu Sep 5 10:49:12 2019 (r351847) @@ -413,7 +413,7 @@ extern int report_soft_matrix; #define CHN_LATENCY_MIN 0 #define CHN_LATENCY_MAX 10 -#define CHN_LATENCY_DEFAULT 5 +#define CHN_LATENCY_DEFAULT 2 /* 21.3ms total buffering */ #define CHN_POLICY_MIN CHN_LATENCY_MIN #define CHN_POLICY_MAX CHN_LATENCY_MAX #define CHN_POLICY_DEFAULT CHN_LATENCY_DEFAULT