From owner-svn-src-all@freebsd.org Sat Sep 14 13:30:23 2019 Return-Path: Delivered-To: svn-src-all@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 8FE93F4D44; Sat, 14 Sep 2019 13:30:23 +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 46Vtfl2QDpz3yZJ; Sat, 14 Sep 2019 13:30:23 +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 2FC8B205E7; Sat, 14 Sep 2019 13:30:23 +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 x8EDUNC5034012; Sat, 14 Sep 2019 13:30:23 GMT (envelope-from hselasky@FreeBSD.org) Received: (from hselasky@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id x8EDUNQ9034011; Sat, 14 Sep 2019 13:30:23 GMT (envelope-from hselasky@FreeBSD.org) Message-Id: <201909141330.x8EDUNQ9034011@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: hselasky set sender to hselasky@FreeBSD.org using -f From: Hans Petter Selasky Date: Sat, 14 Sep 2019 13:30:23 +0000 (UTC) To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org Subject: svn commit: r352324 - stable/12/sys/dev/sound/pcm X-SVN-Group: stable-12 X-SVN-Commit-Author: hselasky X-SVN-Commit-Paths: stable/12/sys/dev/sound/pcm X-SVN-Commit-Revision: 352324 X-SVN-Commit-Repository: base MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-src-all@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "SVN commit messages for the entire src tree \(except for " user" and " projects" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 14 Sep 2019 13:30:23 -0000 Author: hselasky Date: Sat Sep 14 13:30:22 2019 New Revision: 352324 URL: https://svnweb.freebsd.org/changeset/base/352324 Log: MFC r351847: Decrease the default audio playback latency to a maximum of 21.3ms. This significantly improves the audio playback response time. Discussed with: mav@ Sponsored by: Mellanox Technologies Modified: stable/12/sys/dev/sound/pcm/channel.h Directory Properties: stable/12/ (props changed) Modified: stable/12/sys/dev/sound/pcm/channel.h ============================================================================== --- stable/12/sys/dev/sound/pcm/channel.h Sat Sep 14 13:29:41 2019 (r352323) +++ stable/12/sys/dev/sound/pcm/channel.h Sat Sep 14 13:30:22 2019 (r352324) @@ -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