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Re: [Qemu-devel] Communication between Windows 7 host and Linux guest
From: |
Gripon Sébastien |
Subject: |
Re: [Qemu-devel] Communication between Windows 7 host and Linux guest |
Date: |
Mon, 6 Jan 2014 10:09:59 +0000 |
This is the command line:
qemu-system-armw -M versatilepb -kernel ..\BaseQemu\zImage -hda
..\BaseQemu\rootfs.squashfs -hdb ..\BaseQemu\flash.ext3 -append "root=/dev/sda
r" -net tap,ifname=TAP,script=no -net nic
I talked with the developer here and it seems that the bad speed is mainly due
to latency. We are investigating also on our side because we use a "special"
environment: in fact, we use VisualGDB to debug from Visual studio into qemu.
It seems that VisualGDB's ssh client has poor performances but I don't know yet
where the latency come from.
Sebastien
-----Message d'origine-----
De : Stefan Hajnoczi [mailto:address@hidden
Envoyé : lundi 6 janvier 2014 03:15
À : Gripon Sébastien
Cc : address@hidden
Objet : Re: [Qemu-devel] Communication between Windows 7 host and Linux guest
On Sun, Dec 22, 2013 at 07:15:18PM +0000, Gripon Sébastien wrote:
> I have the need to communicate efficiently between Windows 7 host and linux
> guest. I tried first to use an IP socket communication using TAP driver on
> Windows. Unfortunately, we reach a maximum of 4 Mbits/s where I would need
> faster communication (more than 10 Mb/s). I don’t know yet if the TAP driver
> is slow.
That seems very slow, 100 Mbit/s should definitely be achievable. But I have
never tried TAP on Windows.
Can you share the QEMU command-line and the benchmark used to measure this
result?
Stefan