From owner-svn-doc-all@freebsd.org Tue Apr 12 23:00:29 2016 Return-Path: Delivered-To: svn-doc-all@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 DC286B0D9F1; Tue, 12 Apr 2016 23:00:29 +0000 (UTC) (envelope-from wblock@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 mx1.freebsd.org (Postfix) with ESMTPS id 948F71E4B; Tue, 12 Apr 2016 23:00:29 +0000 (UTC) (envelope-from wblock@FreeBSD.org) Received: from repo.freebsd.org ([127.0.1.37]) by repo.freebsd.org (8.15.2/8.15.2) with ESMTP id u3CN0SU0079945; Tue, 12 Apr 2016 23:00:28 GMT (envelope-from wblock@FreeBSD.org) Received: (from wblock@localhost) by repo.freebsd.org (8.15.2/8.15.2/Submit) id u3CN0SCn079944; Tue, 12 Apr 2016 23:00:28 GMT (envelope-from wblock@FreeBSD.org) Message-Id: <201604122300.u3CN0SCn079944@repo.freebsd.org> X-Authentication-Warning: repo.freebsd.org: wblock set sender to wblock@FreeBSD.org using -f From: Warren Block Date: Tue, 12 Apr 2016 23:00:28 +0000 (UTC) To: doc-committers@freebsd.org, svn-doc-all@freebsd.org, svn-doc-head@freebsd.org Subject: svn commit: r48599 - head/en_US.ISO8859-1/htdocs/news/status X-SVN-Group: doc-head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-BeenThere: svn-doc-all@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: "SVN commit messages for the entire doc trees \(except for " user" , " projects" , and " translations" \)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 12 Apr 2016 23:00:30 -0000 Author: wblock Date: Tue Apr 12 23:00:28 2016 New Revision: 48599 URL: https://svnweb.freebsd.org/changeset/doc/48599 Log: Add RCTL disk I/O limits report from Edward Tomasz Napierała . Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Modified: head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml ============================================================================== --- head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Tue Apr 12 22:56:05 2016 (r48598) +++ head/en_US.ISO8859-1/htdocs/news/status/report-2016-01-2016-03.xml Tue Apr 12 23:00:28 2016 (r48599) @@ -1687,4 +1687,57 @@ The FreeBSD Foundation + + + RCTL disk IO Limits + + + + + Edward Tomasz + Napierała + + trasz@FreeBSD.org + + + + + + +

An important missing piece of the RCTL resource limits + framework was the ability to limit file system throughput. + This project aims to fill that hole by making it possible to + add RCTL rules for read bytes per second (BPS), write BPS, + read I/O operations per second (IOPS), and write IOPS, and + adding a new throttling mechanism, to slow down offending + processes when a limit gets hit.

+ +

The code has been committed and will ship with &os; + 11.0-RELEASE.

+ + + + +

Additional testing

+ + + +

Simplify locking, getting rid of rctl_lock altogether

+ + + +

Improve statistics gathering by make it possible for + rctl -u to retrieve usage counters at a fixed point + of time

+ + + +

Use the new throttling mechanism for %CPU limits

+ + + + + The FreeBSD Foundation + +