[Xen-users] Network performance with HVM DomU

[Christoph <mangel@xxxxxx>]

Hi

I have a network issue if I copy FROM a Windows 7 HVM DomU to a linux pv 
domU... I get there only 15-16mb/s. I've installed the last version of 
PV Drivers and this is my config:
builder = 'hvm'
memory = 2048
vcpus=8
boot="c"
name            = "marax"
disk            = [ 'phy:/dev/vg_lilith/lv_marax_c,hda,w', 
'phy:/dev/vg_lilith/lv_marax_d,hdb,w' ]
vif             = [ 
'bridge=xenbr5,mac=00:16:3e:05:01:10,script=vif-bridge,model=e1000' ]
on_poweroff     = 'destroy'
on_reboot       = 'restart'
on_crash        = 'restart'
vnc=0
vga             = 'stdvga'
spice           = 1
spicehost       = '0.0.0.0'
spiceport       = 6000
spicedisable_ticketing=1
spicevdagent=1
spice_clipboard_sharing=1
spiceusbredirection=4
localtime=1
keymap='de'
viridian = 1

this is the dom0 info (centos 7 dom0):

host                   : lilith.mgmt
release                : 3.18.32-20.el7.x86_64
version                : #1 SMP Mon May 9 14:04:25 UTC 2016
machine                : x86_64
nr_cpus                : 8
max_cpu_id             : 15
nr_nodes               : 1
cores_per_socket       : 4
threads_per_core       : 2
cpu_mhz                : 2702
hw_caps                : 
bfebfbff:28100800:00000000:00003b00:0098e3bd:00000000:00000001:00000000
virt_caps              : hvm hvm_directio
total_memory           : 12277
free_memory            : 384
sharing_freed_memory   : 0
sharing_used_memory    : 0
outstanding_claims     : 0
free_cpus              : 0
xen_major              : 4
xen_minor              : 6
xen_extra              : .1-7.el7
xen_version            : 4.6.1-7.el7
xen_caps               : xen-3.0-x86_64 xen-3.0-x86_32p hvm-3.0-x86_32 
hvm-3.0-x86_32p hvm-3.0-x86_64
xen_scheduler          : credit
xen_pagesize           : 4096
platform_params        : virt_start=0xffff800000000000
xen_changeset          : Wed Mar 16 16:51:27 2016 +0000 
git:6aa84b7-dirty
xen_commandline        : placeholder dom0_mem=1024M,max:1024M 
cpufreq=xen dom0_max_vcpus=2 dom0_vcpus_pin console=tty0 
dom0_mem=1024M,max:1024M cpuinfo com1=115200,8n1 console=com1,tty 
loglvl=all guest_loglvl=all
cc_compiler            : gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-4)
cc_compile_by          : mockbuild
cc_compile_domain      : centos.org
cc_compile_date        : Mon May  9 12:55:16 UTC 2016
xend_config_format     : 4

what can be the problem?

--
---------
Greetz

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