From owner-freebsd-gecko@freebsd.org Fri Mar 4 15:38:35 2016 Return-Path: Delivered-To: freebsd-gecko@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 755709DBC8B for ; Fri, 4 Mar 2016 15:38:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from mailman.ysv.freebsd.org (mailman.ysv.freebsd.org [IPv6:2001:1900:2254:206a::50:5]) by mx1.freebsd.org (Postfix) with ESMTP id 60AA137E for ; Fri, 4 Mar 2016 15:38:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 5BB539DBC8A; Fri, 4 Mar 2016 15:38:35 +0000 (UTC) Delivered-To: gecko@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5B4D69DBC89 for ; Fri, 4 Mar 2016 15:38:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 4C2D537D for ; Fri, 4 Mar 2016 15:38:35 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u24FcYBk090905 for ; Fri, 4 Mar 2016 15:38:35 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: gecko@FreeBSD.org Subject: [Bug 203732] www/firefox: High CPU usage when playing HTML5 video when audio/alsa-plugins is built with BUFSZ_P2=off Date: Fri, 04 Mar 2016 15:38:35 +0000 X-Bugzilla-Reason: AssignedTo X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Ports & Packages X-Bugzilla-Component: Individual Port(s) X-Bugzilla-Version: Latest X-Bugzilla-Keywords: performance X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: aksyom@gmail.com X-Bugzilla-Status: Open X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: gecko@FreeBSD.org X-Bugzilla-Flags: maintainer-feedback+ X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: freebsd-gecko@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Gecko Rendering Engine issues List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Mar 2016 15:38:35 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D203732 --- Comment #8 from Arto Pekkanen --- (In reply to commit-hook from comment #4) Okay, now played the above Youtube test video with Firefox without Pulseaud= io. CPU usage (top, raw cpu %) went down a bit, from 150% to around 100%, but C= PU usage is still high. I've also discovered the problem is not only in the audio, problem also with video. You see, when I play video via Firefox, X.org uses around 50% CPU. T= his means that there is a LOT of data copying going on between Firefox and X.or= g.=20 Honestly, the only way I could get X.org use more than a few percent of CPU during video playback with any media player is to use the obsolete X11 -bac= kend (which apparently copies data and does other horrible things). --=20 You are receiving this mail because: You are the assignee for the bug.=