From owner-freebsd-net@FreeBSD.ORG Fri Jun 27 15:30:14 2008 Return-Path: Delivered-To: freebsd-net@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 6836F106574E for ; Fri, 27 Jun 2008 15:30:14 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id 4BDAD8FC1A for ; Fri, 27 Jun 2008 15:30:14 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.2/8.14.2) with ESMTP id m5RFUDBV044572 for ; Fri, 27 Jun 2008 15:30:13 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.2/8.14.1/Submit) id m5RFUD2V044569; Fri, 27 Jun 2008 15:30:13 GMT (envelope-from gnats) Date: Fri, 27 Jun 2008 15:30:13 GMT Message-Id: <200806271530.m5RFUD2V044569@freefall.freebsd.org> To: freebsd-net@FreeBSD.org From: Alex Samorukov Cc: Subject: Re: kern/121257: [tcp] TSO + natd -> slow outgoing tcp traffic X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Alex Samorukov List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 27 Jun 2008 15:30:14 -0000 The following reply was made to PR kern/121257; it has been noted by GNATS. From: Alex Samorukov To: bug-followup@FreeBSD.org, vnovy@vnovy.net Cc: Subject: Re: kern/121257: [tcp] TSO + natd -> slow outgoing tcp traffic Date: Fri, 27 Jun 2008 16:48:15 +0200 I can approve the problem. I found VERY slow outgoing speed on my new server with natd, and the problem was with TSO flag on public interface. Freebsd 7.0/i386, em network driver