From mboxrd@z Thu Jan  1 00:00:00 1970
Received: from eggs.gnu.org ([2001:4830:134:3::10]:49934)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <michael@fritscher.net>) id 1ar0AH-0007pK-Rp
	for qemu-devel@nongnu.org; Fri, 15 Apr 2016 05:35:50 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <michael@fritscher.net>) id 1ar0AD-0002fc-I2
	for qemu-devel@nongnu.org; Fri, 15 Apr 2016 05:35:49 -0400
Received: from mifritscher.de ([188.40.170.105]:55815
	helo=mail.mifritscher.vserverkompetenz.de)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <michael@fritscher.net>) id 1ar0AD-0002ek-CJ
	for qemu-devel@nongnu.org; Fri, 15 Apr 2016 05:35:45 -0400
Message-ID: <2277028c27fba5fe3c8b29a3c1ea28f3.squirrel@mifritscher.de>
In-Reply-To: <570FE780.2090600@fritscher.net>
References: <1460655977-436-1-git-send-email-sw@weilnetz.de>
	<20160414180804.GE3189@var.upmc.fr> <570FE780.2090600@fritscher.net>
Date: Fri, 15 Apr 2016 11:35:37 +0200
From: "Michael Fritscher" <michael@fritscher.net>
MIME-Version: 1.0
Content-Type: text/plain;charset=iso-8859-1
Content-Transfer-Encoding: quoted-printable
Subject: Re: [Qemu-devel] [PATCH for 2.6] wxx: Fix broken TCP networking
 (regression)
List-Id: <qemu-devel.nongnu.org>
List-Unsubscribe: <https://lists.nongnu.org/mailman/options/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=unsubscribe>
List-Archive: <http://lists.nongnu.org/archive/html/qemu-devel/>
List-Post: <mailto:qemu-devel@nongnu.org>
List-Help: <mailto:qemu-devel-request@nongnu.org?subject=help>
List-Subscribe: <https://lists.nongnu.org/mailman/listinfo/qemu-devel>,
	<mailto:qemu-devel-request@nongnu.org?subject=subscribe>
To: Michael Fritscher <michael@fritscher.net>
Cc: Samuel Thibault <samuel.thibault@gnu.org>, Stefan Weil <sw@weilnetz.de>, Peter Maydell <peter.maydell@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, QEMU Developer <qemu-devel@nongnu.org>, Jan Kiszka <jan.kiszka@siemens.com>

Hello Samuel,
> @Ipv6: I'll test it tomorrow.

Interesting results:

On my native windows builds with msys2 and mingw64, a time wget
http://www.heise.de gives me (tested under native Win7)
real 0m24.081s
user 0m2.313s
sys 0m9.620s

or

real 0m52.250s
user 0m3.647s
sys 0m21.117s

The results are quite the same for IPv4+IPv6 or IPv4 only.

Interestingly, they are working fine under Ubuntu Wine!

Stefan Weil builds (he has made a RC3 build in which the fix is applied)
is a lot faster - tested under native Win7:

real 0m2.581s
user 0m0.227s
sys 0m0480s

My cross builds built with Ubuntu and mingw64 are ok as well (tested unde=
r
wine)! I can't test them under Windows, because I got problems with the
vnc viewer...


The qemu command line is
qemu-system-x86_64.exe -m 512 --cdrom
c:\Users\michaelfritscher\Downloads\linux\KNOPPIX_V7.4.2DVD-2014-09-28-DE=
.iso
-netdev user,id=3Dmynet0,restrict=3Dn -device e1000,netdev=3Dmynet0

A simple openssl speed aes shows roughly the same numbers on both builds.

My configure command: ./configure --target-list=3Dx86_64-softmmu
--enable-sdl --extra-cflags=3D-mthreads

So:

Stefan build  + Windows 7 64 =3D ok
Native MSYS build + Windows 7 64=3D slow
Native MSYS build + Ubuntu + Wine =3D ok
My MingW build + Ubuntu + Wine =3D ok
My MingW build + Windows 7 =3D (not testable)

You find my builds under
http://mifritscher.de/austausch/qemu/qemu_msys2.zip and
http://mifritscher.de/austausch/qemu/qemu-linux-mingw64.tar.gz .

Best regards,
Michael Fritscher