On Tue, 2017-02-21 at 15:10 +0800, John Y. wrote: > spice-server is 0.12.4-20 > > I did not add the spice agent. > Can spice agent provide better VGA performance? It will give you the arbitrary resolution feature (guest will change its resolution to match the remote-viewer's window size) > I though it just provide data transferring. > Also copy & paste between the client and the guest, it allows to enable the multimonitor support > I had install spice guest tools. This may have an effect on performance since it installs some drivers Pavel > > Regards, > John > > > 2017-02-21 14:29 GMT+08:00 Pavel Grunt <pgrunt@xxxxxxxxxx>: > > Hello John, > > > > On Tue, 2017-02-21 at 10:28 +0800, John Y. wrote: > > > I had a kvm virtual machine with windows 7 which is created by > > > qemu2.5 and spice-server-1.8.0. > > do you mean spice-server 0.12.8 ? > > > > > I used spice to remote access the vm, but I felled lag sometime. > > > I opened the notepad and typed some words, but words displayed > > after > > > 0.5-1 seconds. I can fell the delay obviously. > > > > > > The vm is on a centos server and ip is 192.168.11.10. > > > My client is on ubuntu and the statistics of ping: > > > > > > --— 192.168.11.10 ping statistics --- > > > 213 packets transmitted, 213 received, 0% packet loss, time > > 212345ms > > > rtt min/avg/max/mdev = 0.294/6.786/17.672/5.125 ms > > > > > > > > > How can I get more information to solve this problem ? > > > > > Let us know if adding the spice agent > > https://www.spice-space.org/spice-user-manual.html#agent > > > > and installing spice guest tools > > https://www.spice-space.org/download.html#windows-binaries > > > > changes anything. > > > > Thanks, > > Pavel > > > > > > > > Here are the information: > > > > > > qemu version: > > > QEMU emulator version 2.5.1.1, Copyright (c) 2003-2008 Fabrice > > > Bellard > > > > > > uname -a > > > Linux server01 4.2.0-1.el7.elrepo.x86_64 #1 SMP Sun Aug 30 > > 21:25:29 > > > EDT 2015 x86_64 x86_64 x86_64 GNU/Linux > > > > > > libvirt.xml: > > > <domain xmlns:qemu="http://libvirt.org/schemas/domain/qemu/1.0"; > > > type="kvm"> > > > <name>win7_001</name> > > > <os> > > > <type arch="x86_64" machine="pc-i440fx-1.7">hvm</type> > > > </os> > > > <features> > > > <acpi/> > > > <apic/> > > > <pae/> > > > </features> > > > <clock offset="localtime"/> > > > <on_poweroff>destroy</on_poweroff> > > > <on_reboot>restart</on_reboot> > > > <on_crash>destroy</on_crash> > > > <vcpu current="2">2</vcpu> > > > <cpu> > > > <topology sockets="1" cores="2" threads="1"/> > > > </cpu> > > > <memory>4194304</memory> > > > <currentMemory>4194304</currentMemory> > > > <devices> > > > <emulator>/root/qemu25/x86_64-softmmu/qemu-system- > > > x86_64</emulator> > > > <disk device="disk" type="file"> > > > <driver name="qemu" type="qcow2" cache="none"/> > > > <source file="/root/vm/wind7_01/win7.qcow2/> > > > <target bus="virtio" dev="vda"/> > > > </disk> > > > <disk type="file" device="cdrom"> > > > <source dev=""/> > > > <target dev="hdc" bus="ide"/> > > > </disk> > > > <serial type="pty"> > > > <source path="/dev/pts/1"/> > > > <target port="0"/> > > > </serial> > > > <input type="tablet" bus="usb"/> > > > <input type="mouse" bus="ps2"/> > > > <controller type="usb" index="0" model="ich9-ehci1"> > > > <alias name="usb0"/> > > > </controller> > > > <controller type="usb" index="0" model="ich9-uhci1"> > > > <alias name="usb0"/> > > > <master startport="0"/> > > > </controller> > > > <controller type="usb" index="0" model="ich9-uhci2"> > > > <alias name="usb0"/> > > > <master startport="2"/> > > > </controller> > > > <controller type="usb" index="0" model="ich9-uhci3"> > > > <alias name="usb0"/> > > > <master startport="4"/> > > > </controller> > > > <redirdev bus="usb" type="spicevmc"> > > > <alias name="redir0"/> > > > </redirdev> > > > <redirdev bus="usb" type="spicevmc"> > > > <alias name="redir1"/> > > > </redirdev> > > > <redirdev bus="usb" type="spicevmc"> > > > <alias name="redir2"/> > > > </redirdev> > > > <redirdev bus="usb" type="spicevmc"> > > > <alias name="redir3"/> > > > </redirdev> > > > <graphics type="spice" autoport="yes" listen='0.0.0.0' > > > keymap='en-us'/> > > > <sound model="ac97"/> > > > <video> > > > <model type="qxl" ram="65536" vram="65536" heads="1"/> > > > </video> > > > <channel type="unix"> > > > <source mode="bind"/> > > > <target type="virtio" name="org.qemu.guest_agent.0"/> > > > </channel> > > > <interface type="bridge"> > > > <mac address="fa:16:3e:6f:55:5b"/> > > > <source bridge="virtio"/> > > > <model type="virtio"/> > > > </interface> > > > </devices> > > > <qemu:commandline> > > > <qemu:arg value="-cpu"/> > > > <qemu:arg value="host"/> > > > </qemu:commandline> > > > </domain> > > > > > > > > > Regards > > > John. > > > > > > _______________________________________________ > > > Spice-devel mailing list > > > Spice-devel@xxxxxxxxxxxxxxxxxxxxx > > > https://lists.freedesktop.org/mailman/listinfo/spice-devel > > > > _______________________________________________ Spice-devel mailing list Spice-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/spice-devel