Sorry, I shouldn''t have used the reply button ... Hi, I''m having some real hard time with the gplpv driver and Windows2k3 DomU on xen 4.0 This is a xen 4 install from debian squeeze withour much changes in the configuration I''ve install the gplpv driver in the DomU, everything seems to work fine but I''m having slow data transfert between two windows DomU (even on the same physical host). I barely reach 100Mbps on a Gbit interface (usualy around 8 - 10 MBytes / s). I have read quite a lot on this "issue" on the list and various other sources. I have tried to disable "Checksum offload" and "Large Send Offload" in the DomU but nothing changed. By the way, this doesn''t affect the Linux DomU (I get full Gbit data speed there) I''m running out of ideas, any advice would be much appreciated. Below is my DomU config file and network configuration : Cheers Olivier DomU : kernel = "/usr/lib/xen-4.0/boot/hvmloader" builder=''hvm'' acpi=1 apic=1 vcpus = 8 memory = 12288 shadow_memory = 8 name = "patologix" vif = [ ''type=paravirtualized, bridge=eth0'' ] disk = [ ''phy:/dev/datastore1/patologix-hda,hda,w'', ''phy:/dev/datastore1/patologix-hdb,hdb,w'', ''phy:/dev/datastore1/patologix-hdd,hdd,w'', ''phy:/dev/datastore1/patologix-hde,hde,w'', # ''file:/mnt/SW_CD_Windows_Svr_Std_2003_R2_32-BIT_X64_English_ISO_x64_1_MLF_X13-73750.ISO,hdc:cdrom,r'', ] device_model = ''/usr/lib64/xen-4.0/bin/qemu-dm'' # boot on floppy (a), hard disk (c) or CD-ROM (d) # default: hard disk, cd-rom, floppy boot="dc" vfb = [ ''type=vnc,vncdisplay=19,vncpasswd=s3cr3t,vnclisten=0.0.0.0,keymap=fr'' ] #sdl=0 #vnc=1 #vncconsole=1 #vncpasswd='''' stdvga=0 serial=''pty'' usbdevice=''tablet'' in my xend-config.sxp the network configuration looks like : (network-script network-bridge) and the bridge configured on the server : root@furax:~# brctl show bridge name bridge id STP enabled interfaces eth0 8000.0025900ce62c no peth0 vif10.0 vif12.0 vif15.0 vif17.0 vif20.0 vif3.0 vif4.0 vif6.0 vif7.0 vif8.0 vif9.0 _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
James Harper
2011-Mar-28 22:06 UTC
Re: [Xen-users] Slow network with Win2k3, HVM and GPLPV
When I''m in front of a computer I''ll email a link for a version that might fix this issue. In the meantime can you test with vcpus=1 and see if that improves things? Sent from my iPhone On 29/03/2011, at 2:44, "Olivier Cant" <olivier@exxoss.com> wrote:> Sorry, I shouldn''t have used the reply button ... > > Hi, > > I''m having some real hard time with the gplpv driver and Windows2k3 DomU on xen 4.0 > > This is a xen 4 install from debian squeeze withour much changes in the configuration > > I''ve install the gplpv driver in the DomU, everything seems to work fine but I''m having slow data transfert between two windows DomU (even on the same physical host). I barely reach 100Mbps on a Gbit interface (usualy around 8 - 10 MBytes / s). > > I have read quite a lot on this "issue" on the list and various other sources. I have tried to disable "Checksum offload" and "Large Send Offload" in the DomU but nothing changed. > > By the way, this doesn''t affect the Linux DomU (I get full Gbit data speed there) > > I''m running out of ideas, any advice would be much appreciated. > > Below is my DomU config file and network configuration : > > Cheers > > Olivier > > DomU : > kernel = "/usr/lib/xen-4.0/boot/hvmloader" > > builder=''hvm'' > acpi=1 > apic=1 > vcpus = 8 > > memory = 12288 > shadow_memory = 8 > name = "patologix" > vif = [ ''type=paravirtualized, bridge=eth0'' ] > disk = [ > ''phy:/dev/datastore1/patologix-hda,hda,w'', > ''phy:/dev/datastore1/patologix-hdb,hdb,w'', > ''phy:/dev/datastore1/patologix-hdd,hdd,w'', > ''phy:/dev/datastore1/patologix-hde,hde,w'', > > # ''file:/mnt/SW_CD_Windows_Svr_Std_2003_R2_32-BIT_X64_English_ISO_x64_1_MLF_X13-73750.ISO,hdc:cdrom,r'', > > ] > device_model = ''/usr/lib64/xen-4.0/bin/qemu-dm'' > > # boot on floppy (a), hard disk (c) or CD-ROM (d) > # default: hard disk, cd-rom, floppy > boot="dc" > > vfb = [ ''type=vnc,vncdisplay=19,vncpasswd=s3cr3t,vnclisten=0.0.0.0,keymap=fr'' ] > > > #sdl=0 > #vnc=1 > #vncconsole=1 > #vncpasswd='''' > stdvga=0 > serial=''pty'' > usbdevice=''tablet'' > > in my xend-config.sxp the network configuration looks like : > > (network-script network-bridge) > > and the bridge configured on the server : > root@furax:~# brctl show > bridge name bridge id STP enabled interfaces > eth0 8000.0025900ce62c no peth0 > vif10.0 > vif12.0 > vif15.0 > vif17.0 > vif20.0 > vif3.0 > vif4.0 > vif6.0 > vif7.0 > vif8.0 > vif9.0 > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Olivier Cant
2011-Mar-29 06:56 UTC
Re: [Xen-users] Slow network with Win2k3, HVM and GPLPV
Hello, thanks for your answer, I have just tried between two xin2k3 with 1 vcpu but the situation remains the same. Olivier Le 29/03/11 00:06, James Harper a écrit :> When I''m in front of a computer I''ll email a link for a version that > might fix this issue. In the meantime can you test with vcpus=1 and > see if that improves things? > > Sent from my iPhone > > On 29/03/2011, at 2:44, "Olivier Cant" <olivier@exxoss.com > <mailto:olivier@exxoss.com>> wrote: > >> Sorry, I shouldn''t have used the reply button ... >> >> Hi, >> >> I''m having some real hard time with the gplpv driver and Windows2k3 >> DomU on xen 4.0 >> >> This is a xen 4 install from debian squeeze withour much changes in >> the configuration >> >> I''ve install the gplpv driver in the DomU, everything seems to work >> fine but I''m having slow data transfert between two windows DomU >> (even on the same physical host). I barely reach 100Mbps on a Gbit >> interface (usualy around 8 - 10 MBytes / s). >> >> I have read quite a lot on this "issue" on the list and various other >> sources. I have tried to disable "Checksum offload" and "Large Send >> Offload" in the DomU but nothing changed. >> >> By the way, this doesn''t affect the Linux DomU (I get full Gbit data >> speed there) >> >> I''m running out of ideas, any advice would be much appreciated. >> >> Below is my DomU config file and network configuration : >> >> Cheers >> >> Olivier >> >> DomU : >> kernel = "/usr/lib/xen-4.0/boot/hvmloader" >> >> builder=''hvm'' >> acpi=1 >> apic=1 >> vcpus = 8 >> >> memory = 12288 >> shadow_memory = 8 >> name = "patologix" >> vif = [ ''type=paravirtualized, bridge=eth0'' ] >> disk = [ >> ''phy:/dev/datastore1/patologix-hda,hda,w'', >> ''phy:/dev/datastore1/patologix-hdb,hdb,w'', >> ''phy:/dev/datastore1/patologix-hdd,hdd,w'', >> ''phy:/dev/datastore1/patologix-hde,hde,w'', >> >> # >> ''file:/mnt/SW_CD_Windows_Svr_Std_2003_R2_32-BIT_X64_English_ISO_x64_1_MLF_X13-73750.ISO,hdc:cdrom,r'', >> >> >> ] >> device_model = ''/usr/lib64/xen-4.0/bin/qemu-dm'' >> >> # boot on floppy (a), hard disk (c) or CD-ROM (d) >> # default: hard disk, cd-rom, floppy >> boot="dc" >> >> vfb = [ >> ''type=vnc,vncdisplay=19,vncpasswd=s3cr3t,vnclisten=0.0.0.0,keymap=fr'' ] >> >> >> #sdl=0 >> #vnc=1 >> #vncconsole=1 >> #vncpasswd='''' >> stdvga=0 >> serial=''pty'' >> usbdevice=''tablet'' >> >> in my xend-config.sxp the network configuration looks like : >> >> (network-script network-bridge) >> >> and the bridge configured on the server : >> root@furax:~# brctl show >> bridge name bridge id STP enabled interfaces >> eth0 8000.0025900ce62c no peth0 >> vif10.0 >> vif12.0 >> vif15.0 >> vif17.0 >> vif20.0 >> vif3.0 >> vif4.0 >> vif6.0 >> vif7.0 >> vif8.0 >> vif9.0 >> _______________________________________________ >> Xen-users mailing list >> Xen-users@lists.xensource.com <mailto:Xen-users@lists.xensource.com> >> http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users-- /Olivier Cant CEO Mobile : +32 (0)497 64 18 22 olivier.cant@exxoss.com Rue de la Station, 2 B-4347 Fexhe-le-Haut-Clocher Tel : +32 (0)4 341 25 81 Fax : +32 (0)4 371 94 06/ _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users