From owner-freebsd-net@FreeBSD.ORG Mon Feb 22 02:02:56 2010 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 BFF4E106566C; Mon, 22 Feb 2010 02:02:56 +0000 (UTC) (envelope-from yongari@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id B20F88FC14; Mon, 22 Feb 2010 02:02:56 +0000 (UTC) Received: from freefall.freebsd.org (localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id o1M22uLY036404; Mon, 22 Feb 2010 02:02:56 GMT (envelope-from yongari@freefall.freebsd.org) Received: (from yongari@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id o1M22ut8036400; Mon, 22 Feb 2010 02:02:56 GMT (envelope-from yongari) Date: Mon, 22 Feb 2010 02:02:56 GMT Message-Id: <201002220202.o1M22ut8036400@freefall.freebsd.org> To: zephyrus.271@gmail.com, yongari@FreeBSD.org, freebsd-net@FreeBSD.org, yongari@FreeBSD.org From: yongari@FreeBSD.org Cc: Subject: Re: kern/144148: [msk] Slow network performance and high system cpu load while transfering data X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 22 Feb 2010 02:02:56 -0000 Synopsis: [msk] Slow network performance and high system cpu load while transfering data State-Changed-From-To: open->feedback State-Changed-By: yongari State-Changed-When: Mon Feb 22 02:01:24 UTC 2010 State-Changed-Why: I remember there are stability issues on 88E8072 but it's somewhat hard to fix that mainly because I don't have the hardware to narrow down the issue. It seems you have two issues here, low performance number and high CPU usage during transfers. I have no idea how high CPU usage comes from msk(4) even if msk(4) gives poor performance. Would you show me the output of "sysctl dev.msk.0.stats"? And send captured traffics on receiver side(not on host with msk(4)) with tcpdump and send it to me. Responsible-Changed-From-To: freebsd-net->yongari Responsible-Changed-By: yongari Responsible-Changed-When: Mon Feb 22 02:01:24 UTC 2010 Responsible-Changed-Why: Grab. http://www.freebsd.org/cgi/query-pr.cgi?pr=144148