From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matt Ayres Subject: Re: [Xen-changelog] Plumb network vif credit-based rate limiting thorugh xenbus Date: Sat, 01 Apr 2006 11:34:24 -0500 Message-ID: <442EAB90.30604@tektonic.net> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Xen patchbot -unstable wrote: > # HG changeset patch > # User kaf24@firebug.cl.cam.ac.uk > # Node ID dadadf9aeee713bbe2f8dc040a74f7cea2223f41 > # Parent 2769a38f0e3e7ab544293833276a5d8cd0875483 > Plumb network vif credit-based rate limiting thorugh xenbus > and xend into xm guest config files. > > A new vif parameter 'rate' is supported, with an optional time window > paremeter for specifying granularity of credit replenishment. The default > window is 50ms. For example: > > 'rate=10Mb/s' 'rate=250KB/s' 'rate=1MB/s@20ms' > Is this rate in+out or out only? Also, perhaps Chris could explain for us non-kernel hackers the purpose of specifying the credit replenishment granularity and how it can be beneficial to tune it under certain circumstances? Thank you, Matt Ayres