From owner-freebsd-gecko@freebsd.org Sun Sep 17 17:57:23 2017 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 A5557E21865 for ; Sun, 17 Sep 2017 17:57:23 +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 8AD076710A for ; Sun, 17 Sep 2017 17:57:23 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: by mailman.ysv.freebsd.org (Postfix) id 86532E2185F; Sun, 17 Sep 2017 17:57:23 +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 8400DE2185D for ; Sun, 17 Sep 2017 17:57:23 +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 6EE0667109 for ; Sun, 17 Sep 2017 17:57:23 +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 v8HHvN9h037310 for ; Sun, 17 Sep 2017 17:57:23 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: gecko@FreeBSD.org Subject: [Bug 222356] www/firefox: file-backed shared memory performance Date: Sun, 17 Sep 2017 17:57:23 +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: X-Bugzilla-Severity: Affects Only Me X-Bugzilla-Who: kib@FreeBSD.org X-Bugzilla-Status: New 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: 2.1.23 Precedence: list List-Id: Gecko Rendering Engine issues List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Sep 2017 17:57:23 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D222356 --- Comment #5 from Konstantin Belousov --- (In reply to Tijl Coosemans from comment #4) +J should make the amount of writes on close significantly larger. +J solv= es the problem of leaked resources only, since the problem of the filesystem metadata correctness is already solved by the SU part. So +J must journal = all metadata objects which cannot be reached from the normal metadata accesses.= In particular, all freed data blocks must be mentioned in the journal records before cg bitmaps are allowed to be written. The result is that +J at least doubles the amount of writes, and also the d= ata amount is O(file length) at least. Again, your description does not make me see how my patch (which only affec= ts msync(2)) relates to the build failures. --=20 You are receiving this mail because: You are the assignee for the bug.=