From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:51328) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YFfsl-0005Vb-P2 for qemu-devel@nongnu.org; Mon, 26 Jan 2015 04:22:56 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YFfsi-0005QZ-CY for qemu-devel@nongnu.org; Mon, 26 Jan 2015 04:22:55 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43345) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YFfsi-0005QQ-4P for qemu-devel@nongnu.org; Mon, 26 Jan 2015 04:22:52 -0500 Date: Mon, 26 Jan 2015 09:22:43 +0000 From: "Dr. David Alan Gilbert" Message-ID: <20150126092243.GB2291@work-vm> References: <1418347746-15829-1-git-send-email-liang.z.li@intel.com> <1418347746-15829-13-git-send-email-liang.z.li@intel.com> <20150123134821.GL2370@work-vm> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] [v3 12/13] migration: Add command to set migration parameter List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Li, Liang Z" Cc: "Zhang, Yang Z" , "armbru@redhat.com" , "lcapitulino@redhat.com" , "qemu-devel@nongnu.org" , "quintela@redhat.com" * Li, Liang Z (liang.z.li@intel.com) wrote: > > > * Liang Li (liang.z.li@intel.com) wrote: > > > Add the qmp and hmp commands to tune the parameters used in live > > > migration. > > > > If I understand correctly on the destination side we need to set the number > > of decompression threads very early on an incoming migration - I'm not clear > > how early that needs to be - especially if you're using fd: so it's not waiting > > for a connect ? > > The decompression threads can be set after QEMU started (with -incomming > options) and before the TCP accept. But that doesn't work for an fd: incoming migration. Dave > > > -- Dr. David Alan Gilbert / dgilbert@redhat.com / Manchester, UK