From owner-freebsd-xen@FreeBSD.ORG Sat Jan 29 19:59:24 2011 Return-Path: Delivered-To: freebsd-xen@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6F050106566B for ; Sat, 29 Jan 2011 19:59:24 +0000 (UTC) (envelope-from sysconfig@ossafe.org) Received: from mx2.the-ally.co.uk (mx2.the-ally.co.uk [95.154.227.236]) by mx1.freebsd.org (Postfix) with ESMTP id 380BC8FC0C for ; Sat, 29 Jan 2011 19:59:23 +0000 (UTC) Received: from [10.2.2.20] (unknown [10.2.2.20]) by mx2.the-ally.co.uk (Postfix) with ESMTP id DF74EED0418; Sat, 29 Jan 2011 19:59:08 +0000 (GMT) Mime-Version: 1.0 (Apple Message framework v1082) Content-Type: text/plain; charset=us-ascii From: Carsten Heesch In-Reply-To: <11769353-E8AD-4CDA-B051-03B156EE6587@ossafe.org> Date: Sat, 29 Jan 2011 19:59:21 +0000 Content-Transfer-Encoding: quoted-printable Message-Id: <0C44C35C-6D64-4E37-BBEA-DB3BC63CC465@ossafe.org> References: <11769353-E8AD-4CDA-B051-03B156EE6587@ossafe.org> To: Carsten Heesch X-Mailer: Apple Mail (2.1082) Cc: freebsd-xen@FreeBSD.org Subject: Re: Sync performance HAST and ggate/gmirror on Xen X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussion of the freebsd port to xen - implementation and usage List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 29 Jan 2011 19:59:24 -0000 > I'm experiencing dreadful performance (sync throughput less than = 1MB/sec) with both replication options, and am not quite sure how to = troubleshoot that, because the network speed between two DomU's is = otherwise well beyond 50MB/sec.=20 Have done some further testing. This only happens with amd64/XENHVM (xen = network driver). Generic amd64 kernels (re network driver) work just = fine, although the network driver seems to be a little bit slower.=20 Cheers C.