From owner-freebsd-xen@freebsd.org Sun Sep 20 21:33:49 2015 Return-Path: Delivered-To: freebsd-xen@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 956B6A06744 for ; Sun, 20 Sep 2015 21:33:49 +0000 (UTC) (envelope-from thinker.lp@gmail.com) Received: from mail-wi0-x234.google.com (mail-wi0-x234.google.com [IPv6:2a00:1450:400c:c05::234]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 33A661C98 for ; Sun, 20 Sep 2015 21:33:49 +0000 (UTC) (envelope-from thinker.lp@gmail.com) Received: by wicge5 with SMTP id ge5so92389333wic.0 for ; Sun, 20 Sep 2015 14:33:47 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:date:message-id:subject:from:to:content-type; bh=XIMEFFcHVc5hqvqDb4JiZLd9Ih+8yzQvjtSLjkfivEE=; b=Fr+HwCu3jxuY25wETCfOnnkdP/1oXlEdkYq6CrXL2HjXcatfd2QM2xXCHTfnPdBu7X nQYu28dH6LnE0soZwFkvKZY1CUY5QeQ8jp2UYQooIO3x6CIGZ8Iap74jdCCD5kdnvdzJ N1TnslxHRY0QQsT0nkbOhgYhdGcf4Zp9Ds7SCTIJ1xOKDOaeeHjNEZtgaHfxq/wNB5Xc Buo1zK3J88b7TBhGkQv/Vf9FhLgDPCYZ6NTWwACXXBBZ3H6YiHkMkXC0FxnX8bPxNA6c YN0E5nQ+jiiEftzQiks+ujvaXE1uAqRGQlQb2XlhRjo4sBLOOl6DpjXXnlDz0nPK64D0 2s4Q== MIME-Version: 1.0 X-Received: by 10.194.114.37 with SMTP id jd5mr18882049wjb.34.1442784827404; Sun, 20 Sep 2015 14:33:47 -0700 (PDT) Received: by 10.28.49.197 with HTTP; Sun, 20 Sep 2015 14:33:47 -0700 (PDT) Date: Mon, 21 Sep 2015 00:33:47 +0300 Message-ID: Subject: kern/154428: xn0 network interface and PF - Massive performance drop From: Jonas Liepuonius To: freebsd-xen@freebsd.org Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.20 X-BeenThere: freebsd-xen@freebsd.org X-Mailman-Version: 2.1.20 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: Sun, 20 Sep 2015 21:33:49 -0000 Hello, facing the same problem with FreeBSD 10.2 on XenServer 6.5. Disabling PF entirely fixes the problem, and the workarounds I found ( "ifconfig xn0 -lro -tso" and "sysctl net.inet.tcp.tso=0" ) don't help unfortunately. -- Regards, Jonas