[Users] Ovirt + Spice + VDI
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? Thanks
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
adding spice-devel
Thanks itamar Can you tell me when is it available? Is it available on development versions? Best regards On Sep 13, 2012 1:14 AM, "Itamar Heim" <iheim@redhat.com> wrote:
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? Thanks
______________________________**_________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/**mailman/listinfo/users<http://lists.ovirt.org/mailman/listinfo/users>
adding spice-devel
On 09/13/2012 07:52 AM, Mohsen Saeedi wrote:
Thanks itamar Can you tell me when is it available? Is it available on development versions?
not sure, hence why i cc'd spice-devel for info
Best regards
On Sep 13, 2012 1:14 AM, "Itamar Heim" <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is <http://users.is> it possible in now or in the futures? Thanks
_________________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/__mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>
adding spice-devel
Hi Mohsen, multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session. And adding to what Gavin has already written: oVirt leverages KSM so that when you have multiple similar VMs on the same host, common parts of their memory will be shared, thus reducing the one-user-per-VM overhead. David Itamar Heim píše v Čt 13. 09. 2012 v 08:01 +0300:
On 09/13/2012 07:52 AM, Mohsen Saeedi wrote:
Thanks itamar Can you tell me when is it available? Is it available on development versions?
not sure, hence why i cc'd spice-devel for info
Best regards
On Sep 13, 2012 1:14 AM, "Itamar Heim" <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is <http://users.is> it possible in now or in the futures? Thanks
_________________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/__mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>
adding spice-devel
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- David Jaša, RHCE SPICE QE based in Brno GPG Key: 22C33E24 Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session.
Moshen, I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users. Please ignore my lengthy email, it won't help you at all. Alon
And adding to what Gavin has already written: oVirt leverages KSM so that when you have multiple similar VMs on the same host, common parts of their memory will be shared, thus reducing the one-user-per-VM overhead.
David
Itamar Heim píše v Čt 13. 09. 2012 v 08:01 +0300:
On 09/13/2012 07:52 AM, Mohsen Saeedi wrote:
Thanks itamar Can you tell me when is it available? Is it available on development versions?
not sure, hence why i cc'd spice-devel for info
Best regards
On Sep 13, 2012 1:14 AM, "Itamar Heim" <iheim@redhat.com <mailto:iheim@redhat.com>> wrote:
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is <http://users.is> it possible in now or in the futures? Thanks
_________________________________________________ Users mailing list Users@ovirt.org <mailto:Users@ovirt.org> http://lists.ovirt.org/__mailman/listinfo/users <http://lists.ovirt.org/mailman/listinfo/users>
adding spice-devel
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
--
David Jaša, RHCE
SPICE QE based in Brno GPG Key: 22C33E24 Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
On Thu, 2012-09-13 at 08:06 -0400, Alon Levy wrote:
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session.
Moshen,
I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users.
Please ignore my lengthy email, it won't help you at all.
Alon <snip> We are actually quite interested in something like this. In effect, it is RDS but replaces the RDP protocol with SPICE for the advantages SPICE brings.
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN. Thanks - John
John A. Sullivan III píše v Čt 13. 09. 2012 v 08:38 -0400:
On Thu, 2012-09-13 at 08:06 -0400, Alon Levy wrote:
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session.
Moshen,
I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users.
Please ignore my lengthy email, it won't help you at all.
Alon <snip> We are actually quite interested in something like this. In effect, it is RDS but replaces the RDP protocol with SPICE for the advantages SPICE brings.
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN.
This is going to get way better, qemu folks are working on discarding deleted blocks so once you delete something on thin-provisioned storage, it will be freed for reuse. If you can afford it, then using & recycling oVirt templates will allow you to go for 1000+ % storage overcommit right now. David
Thanks - John
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
-- David Jaša, RHCE SPICE QE based in Brno GPG Key: 22C33E24 Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
On Thu, 2012-09-13 at 20:16 +0430, Mohsen Saeedi wrote:
John A. Sullivan III <jsullivan@opensourcedevel.com> wrote on Thu, 13 Sep 2012 08:38:11 -0400:
On Thu, 2012-09-13 at 08:06 -0400, Alon Levy wrote:
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session. Moshen,
I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users.
Please ignore my lengthy email, it won't help you at all.
Alon You can use some recipe for get ridding windows XP RDP limitation: http://www.petri.co.il/multiple-remote-desktop-sessions-on-windows-xp-sp3.ht...
I think the problems are more legal than technical. From the above link: "However, be warned. Before you begin, I need to warn you that patching the file and allowing more than one concurrent Remote Desktop session will violate a few lines in the Windows XP EULA. Proceed with caution and at your own risk."
<snip> We are actually quite interested in something like this. In effect, it is RDS but replaces the RDP protocol with SPICE for the advantages SPICE brings.
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN. Thanks - John I think so, spice has experimental feature for multiple client to single windows XP now. is it true?? and what is the details for idea of using KVM/KSM to move to a single server per user? I didn't understand it very well. Thanks This is something we are able to do splendidly well with VServer and X2Go (an NX implementation). With the VServer hashification feature, I can have 400 VMs on a host and only take one VM's worth of space for system files. Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free. Because the additional overhead is so minuscule (minimal memory and disk and almost no virtualization overhead since it is a container technology instead of a hypervisor), and because there are no licensing issues for our Linux desktops, it makes sense to give each user a dedicated VM. Not only does that give us excellent isolation from errant processes but it also means (because of the details of our implementation) that each user has a consistent IP address allowing us to correlate network events with specific users.
In some Windows licensing models, there is no cost differential between individual workstations and individual VMs. In that model, we are investigating the same scenario, viz., a single VM per user. However, since we cannot use VServer for Windows guests, we either need to look at Virtuozzo or produce the same results with KVM/KSM/dedupe. We suspect that is much more resource intensive than it is with VServer. Whatever model we choose, we then need a transport protocol and, as SPICE is refined especially in its handling of WAN video, we are quite interested in using it rather than RDP for transport. I hope that clarifies it. Thanks - John
Take a look at OSDVT. On 13 Sep 2012, at 17:36, "John A. Sullivan III" <jsullivan@opensourcedevel.com> wrote:
On Thu, 2012-09-13 at 20:16 +0430, Mohsen Saeedi wrote:
John A. Sullivan III <jsullivan@opensourcedevel.com> wrote on Thu, 13 Sep 2012 08:38:11 -0400:
On Thu, 2012-09-13 at 08:06 -0400, Alon Levy wrote:
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session. Moshen,
I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users.
Please ignore my lengthy email, it won't help you at all.
Alon You can use some recipe for get ridding windows XP RDP limitation: http://www.petri.co.il/multiple-remote-desktop-sessions-on-windows-xp-sp3.ht...
I think the problems are more legal than technical. From the above link: "However, be warned. Before you begin, I need to warn you that patching the file and allowing more than one concurrent Remote Desktop session will violate a few lines in the Windows XP EULA. Proceed with caution and at your own risk."
<snip> We are actually quite interested in something like this. In effect, it is RDS but replaces the RDP protocol with SPICE for the advantages SPICE brings.
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN. Thanks - John I think so, spice has experimental feature for multiple client to single windows XP now. is it true?? and what is the details for idea of using KVM/KSM to move to a single server per user? I didn't understand it very well. Thanks This is something we are able to do splendidly well with VServer and X2Go (an NX implementation). With the VServer hashification feature, I can have 400 VMs on a host and only take one VM's worth of space for system files. Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free. Because the additional overhead is so minuscule (minimal memory and disk and almost no virtualization overhead since it is a container technology instead of a hypervisor), and because there are no licensing issues for our Linux desktops, it makes sense to give each user a dedicated VM. Not only does that give us excellent isolation from errant processes but it also means (because of the details of our implementation) that each user has a consistent IP address allowing us to correlate network events with specific users.
In some Windows licensing models, there is no cost differential between individual workstations and individual VMs. In that model, we are investigating the same scenario, viz., a single VM per user. However, since we cannot use VServer for Windows guests, we either need to look at Virtuozzo or produce the same results with KVM/KSM/dedupe. We suspect that is much more resource intensive than it is with VServer.
Whatever model we choose, we then need a transport protocol and, as SPICE is refined especially in its handling of WAN video, we are quite interested in using it rather than RDP for transport. I hope that clarifies it. Thanks - John
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
John A. Sullivan III píše v Čt 13. 09. 2012 v 12:36 -0400:
On Thu, 2012-09-13 at 20:16 +0430, Mohsen Saeedi wrote:
John A. Sullivan III <jsullivan@opensourcedevel.com> wrote on Thu, 13 Sep 2012 08:38:11 -0400:
On Thu, 2012-09-13 at 08:06 -0400, Alon Levy wrote:
Hi Mohsen,
multiple sessions to the single VM are not on the roadmap. There is experimental multi-client support but it is to make more users see the same session. Moshen,
I misunderstood. In this case, I guess I don't actually see how we could fix your problem without circumventing any mechanism that windows has to count license users.
Please ignore my lengthy email, it won't help you at all.
Alon You can use some recipe for get ridding windows XP RDP limitation: http://www.petri.co.il/multiple-remote-desktop-sessions-on-windows-xp-sp3.ht...
I think the problems are more legal than technical. From the above link: "However, be warned. Before you begin, I need to warn you that patching the file and allowing more than one concurrent Remote Desktop session will violate a few lines in the Windows XP EULA. Proceed with caution and at your own risk."
<snip> We are actually quite interested in something like this. In effect, it is RDS but replaces the RDP protocol with SPICE for the advantages SPICE brings.
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN. Thanks - John I think so, spice has experimental feature for multiple client to single windows XP now. is it true?? and what is the details for idea of using KVM/KSM to move to a single server per user? I didn't understand it very well. Thanks This is something we are able to do splendidly well with VServer and X2Go (an NX implementation). With the VServer hashification feature, I can have 400 VMs on a host and only take one VM's worth of space for system files.
oVirt (RHEV) templates will do the same for you.
Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free.
oVirt (RHEV) runs KSM only when the host memory gets fuller but I seem to remember that guys were able to have high 1000's of % of memory overcommit ratios BTW, how does VServer implement its memory sharing, isn't it KSM internally too?
Because the additional overhead is so minuscule (minimal memory and disk and almost no virtualization overhead since it is a container technology instead of a hypervisor), and because there are no licensing issues for our Linux desktops, it makes sense to give each user a dedicated VM. Not only does that give us excellent isolation from errant processes but it also means (because of the details of our implementation) that each user has a consistent IP address allowing us to correlate network events with specific users.
in oVirt, your guest systems have stable MAC address so with properly configured DHCP/DNS, you'd get the same. David
In some Windows licensing models, there is no cost differential between individual workstations and individual VMs. In that model, we are investigating the same scenario, viz., a single VM per user. However, since we cannot use VServer for Windows guests, we either need to look at Virtuozzo or produce the same results with KVM/KSM/dedupe. We suspect that is much more resource intensive than it is with VServer.
Whatever model we choose, we then need a transport protocol and, as SPICE is refined especially in its handling of WAN video, we are quite interested in using it rather than RDP for transport. I hope that clarifies it. Thanks - John
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- David Jaša, RHCE SPICE QE based in Brno GPG Key: 22C33E24 Fingerprint: 513A 060B D1B4 2A72 7F0D 0278 B125 CD00 22C3 3E24
John A. Sullivan III píše v Čt 13. 09. 2012 v 12:36 -0400:
On Thu, 2012-09-13 at 20:16 +0430, Mohsen Saeedi wrote:
John A. Sullivan III <jsullivan@opensourcedevel.com> wrote on Thu, 13
<snip>> > >
We have also been toying with the idea of using KVM/KSM to move to a single server per user. This would provide much greater isolation and non-repudiation but we are concerned about the overhead of KVM on the KVM host and deduplication on the SAN. Thanks - John I think so, spice has experimental feature for multiple client to single windows XP now. is it true?? and what is the details for idea of using KVM/KSM to move to a single server per user? I didn't understand it very well. Thanks This is something we are able to do splendidly well with VServer and X2Go (an NX implementation). With the VServer hashification feature, I can have 400 VMs on a host and only take one VM's worth of space for system files.
oVirt (RHEV) templates will do the same for you. Then I had better start investigating it! Thanks.
Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free.
oVirt (RHEV) runs KSM only when the host memory gets fuller but I seem to remember that guys were able to have high 1000's of % of memory overcommit ratios I have heard rumors of high CPU utilization with KSM but we have not experimented enough with it ourselves to know. Is that an issue?
BTW, how does VServer implement its memory sharing, isn't it KSM internally too? No, it's a consequence of their "hashification." As an option, all duplicate files in the file system (there is a single file system in VServer although accessed via different namespaces) are replaced by immutable hard links. I'm not sure of the details but, because each of
On Fri, 2012-09-14 at 11:49 +0200, David Jaša wrote: those files shares a common inode, I believe only one instance is loaded into memory.
Because the additional overhead is so minuscule (minimal memory and disk and almost no virtualization overhead since it is a container technology instead of a hypervisor), and because there are no licensing issues for our Linux desktops, it makes sense to give each user a dedicated VM. Not only does that give us excellent isolation from errant processes but it also means (because of the details of our implementation) that each user has a consistent IP address allowing us to correlate network events with specific users.
in oVirt, your guest systems have stable MAC address so with properly configured DHCP/DNS, you'd get the same.
David
<snip>
On 09/14/2012 03:28 PM, John A. Sullivan III wrote: ...
Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free.
oVirt (RHEV) runs KSM only when the host memory gets fuller but I seem to remember that guys were able to have high 1000's of % of memory overcommit ratios I have heard rumors of high CPU utilization with KSM but we have not experimented enough with it ourselves to know. Is that an issue?
ksm takes cpu, but servers today are loaded with cores, but memory is still the expensive part. today we configure ksm to kick in only when memory is ~80%, which is when you'd usually be willing to pay the price of one of your cores spending some time on ksm, then the memory congestion on the host / losing memory overcommit.
On Fri, 2012-09-14 at 16:55 +0300, Itamar Heim wrote:
On 09/14/2012 03:28 PM, John A. Sullivan III wrote: ...
Moreover, all instances in memory only take the space of one instance. Thus, we get deduplication and KSM almost for free.
oVirt (RHEV) runs KSM only when the host memory gets fuller but I seem to remember that guys were able to have high 1000's of % of memory overcommit ratios I have heard rumors of high CPU utilization with KSM but we have not experimented enough with it ourselves to know. Is that an issue?
ksm takes cpu, but servers today are loaded with cores, but memory is still the expensive part. today we configure ksm to kick in only when memory is ~80%, which is when you'd usually be willing to pay the price of one of your cores spending some time on ksm, then the memory congestion on the host / losing memory overcommit. That's where VServer is so great - we get the same results without the overhead. I assume oVirt does not change that part. Still, we are looking forward to exploring it as we really have no other option for Windows desktops and servers. Thanks - John
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? Thanks
Thanks for the interest. There is no support for multiple client connections using spice protocol. There is only experimental known buggy support that still needs more work. There is no concrete plan when that work will happen.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
adding spice-devel
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
we want to develope spice for multiple concurrent spice console on single OS. for example, we want to use windows XP as single VM for multiple users. we want to develop it as spice feature. is it possible? any help or idea? shall we work on that experimental feature?
Can you explain what you mean by "we want to use windows XP as single VM for multiple users" Again as I said in my previous post, This 1st sounds like it will go against the Windows EULA, and 2nd if you could get multiple concurrent connections, they would all be looking @ the same shared desktop. so they would all share the same Mouse, Keyboard and so on... they would not be able to work independently. So as David also said the users will all see the same Session. Windows XP does Not & Can not support multiple concurrent connections, Spice or otherwise, due to it being a Desktop OS. For the users to be able to work in independent sessions, you would have to use a Widows Server Edition, and enable the 'Windows Terminal Services' Features. - -- Gavin Spurgeon. AKA Da Geek - ---------------------------------------------------------------------- "The happiest of people don't necessarily have the best of everything, they just make the most of everything that comes along their way.." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlBRxW4ACgkQvp6arS3vDirjxwCgwq4L201Uiwrt+DQRhijJ6ZZh Eg0AmwUVr7fDfW7OCSJBCKr+CfNrT8bn =0qFH -----END PGP SIGNATURE----- -- This message was scanned by DaGeek Spam Filter and is believed to be clean.
Thanks. we want to develope spice for multiple concurrent spice console on single OS. for example, we want to use windows XP as single VM for multiple users. we want to develop it as spice feature. is it possible? any help or idea? shall we work on that experimental feature?
Great to hear. So the situation is as follows: * there has been extensive refactoring of spice-server to support multiple concurrent connections, or as they are called in the commit messages: multiclients, or multi client, or multiple client support. * It isn't set on by default, you need to enable a special environment variable, it says in the README, I think SPICE_DEBUG_MC_ENABLED=1 (check first in README). * The reason it isn't enabled is that spice will abort if you use two clients which have different network conditions. This is not usable in production. The problem requires me to explain a bit more about how spice is architected, but since you are suggesting you will work on fixing this, I am glad to do so: Some nomenclature: (camel case denotes a struct defined in spice-server) Drawable - spice internal item linking to on device RedDrawable. We limit these to NUM_DRAWABLES to avoid ballooning server memory usage. RedClient - a single client. It can have multiple channels connected. We are only interested in the display channel right now, but the problem is mirrored for the cursor channel, although it is simpler to fix there. RedChannel - a single channel. It can have multiple clients. RedChannelClient - a single instance of a channel for a particular client. Contains the socket to the client for this channel (spice has a separate socket per channel per client). It contains a queue of outgoing messages to the client, messages are dequeued when the socket becomes ready for writing (see red_worker.c poll loop) pipe - the message queue just mentioned is called a pipe, or a message pipe. This is the penultimate cause of the abort mentioned: one of the RCCs (RedChannelClient) socket because blocked for write for a long time. As a result the pipe size increases. Each pipe item references a Drawable. When the pipe size reaches NUM_DRAWABLES we get an abort (this is a bit simplified since not all pipe items have to reference a Drawable). Every rendering operation coming from the guest goes through the following sequence: * read by spice-server from device: QXLInterface::get_command (qemu: hw/qxl.c:interface_get_command) * allocate a drawable. * for each RedChannelClient push to the pipe (creating a PipeItem, taking a reference on the drawable) * try to send data to each RCC socket There are a few things we can do: (a) dynamically increase NUM_DRAWABLES - this goes against the requirement to constrain the amount of memory the server uses (for allowing multiple servers on one vm) * we can make this configurable for a short term solution. * but even with this it is possible that a (b) (this is what I want to do) Replace too long a queue with a single rendered image. This will free all the drawable references, using a single new drawable or possibly another queue (Drawables reference RedDrawables that are the device allocated memory, and this new rendered image will be completely in non guest ram). The building blocks for (b) already exist in the server. See for instance update_area. But I've taken a long time to write this and I need to stop now, so if this sounds like something you want to do then please ask me further questions, I'm also on irc. Alon
Thanks.
Alon Levy <alevy@redhat.com> wrote on Thu, 13 Sep 2012 05:47:37 -0400 (EDT):
On 09/12/2012 07:32 PM, Mohsen Saeedi wrote:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? Thanks Thanks for the interest. There is no support for multiple client connections using spice protocol. There is only experimental known buggy support that still needs more work. There is no concrete plan when that work will happen.
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users adding spice-devel
_______________________________________________ Spice-devel mailing list Spice-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/spice-devel
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi Mohsen
I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures?
Can you explain what you mean by "I want to install one windows XP as virtual desktop and then share it with more than one users." This, 1st sounds like it will go against the Windows EULA, and 2nd if you could get multiple concurrent connections, they would all be looking @ the same shared desktop. so they would all share the same Mouse, Keyboard and so on... they would not be able to work independently. For the users to be able to work independently, you would have to use a Widows Server Edition, and enable the 'Windows Terminal Services' Features. - -- Gavin Spurgeon. AKA Da Geek - ---------------------------------------------------------------------- "The happiest of people don't necessarily have the best of everything, they just make the most of everything that comes along their way.." -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://www.enigmail.net/ iEYEARECAAYFAlBRh5sACgkQvp6arS3vDiqzTQCfRceLNEwt+9zSw2c3OBX1jPB/ zVkAn1zyQhfelKAZovu6udx3HIBU8Jr5 =G6Sr -----END PGP SIGNATURE----- -- This message was scanned by DaGeek Spam Filter and is believed to be clean.
This is a multi-part message in MIME format. --------------020500020301040708080707 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Mohsen Saeedi:
Hi I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? I think you are talking about mutiple sessions in one windows desktop servers. I believe you must use RDP protocol to access those sessions. Spice is for one window desktop per user.
Thanks
_______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
-- --- ?? Shu Ming Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: shuming@cn.ibm.com or shuming@linux.vnet.ibm.com Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC --------------020500020301040708080707 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit <html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body text="#000000" bgcolor="#FFFFFF"> <div class="moz-cite-prefix">Mohsen Saeedi:<br> </div> <blockquote cite="mid:5050B915.8020207@gmail.com" type="cite"> <meta http-equiv="content-type" content="text/html; charset=ISO-8859-1"> <style type="text/css">body p { margin-bottom: 0cm; margin-top: 0pt; } </style> Hi<br> I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine?<br> I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? <br> </blockquote> I think you are talking about mutiple sessions in one windows desktop servers. I believe you must use RDP protocol to access those sessions. Spice is for one window desktop per user.<br> <br> <br> <blockquote cite="mid:5050B915.8020207@gmail.com" type="cite"> Thanks<br> <br> <fieldset class="mimeAttachmentHeader"></fieldset> <br> <pre wrap="">_______________________________________________ Users mailing list <a class="moz-txt-link-abbreviated" href="mailto:Users@ovirt.org">Users@ovirt.org</a> <a class="moz-txt-link-freetext" href="http://lists.ovirt.org/mailman/listinfo/users">http://lists.ovirt.org/mailman/listinfo/users</a> </pre> </blockquote> <br> <br> <pre class="moz-signature" cols="72">-- --- 舒明 Shu Ming Open Virtualization Engineerning; CSTL, IBM Corp. Tel: 86-10-82451626 Tieline: 9051626 E-mail: <a class="moz-txt-link-abbreviated" href="mailto:shuming@cn.ibm.com">shuming@cn.ibm.com</a> or <a class="moz-txt-link-abbreviated" href="mailto:shuming@linux.vnet.ibm.com">shuming@linux.vnet.ibm.com</a> Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC</pre> </body> </html> --------------020500020301040708080707--
On 03/06/2013 09:15 AM, Shu Ming wrote:
I want to know, we are force to install one windows per user? does spice can provide a multi remote connection to a single windows XP machine? I want to install one windows XP as virtual desktop and then share it with more than one users.is it possible in now or in the futures? I think you are talking about mutiple sessions in one windows desktop servers. I believe you must use RDP protocol to access those sessions. Spice is for one window desktop per user.
it's one thing to allow multiple spice clients to see same windows xp console (multi clients / session shadowing / remote control) and another to allow each such user to have their own separate windows session, which windows xp does not support (nor does spice). for the former (multi clients, same session) - i remember some discussion on this in spice list, but not current status.
participants (8)
-
Alon Levy -
Andrew Osborne -
David Jaša -
Gavin Spurgeon -
Itamar Heim -
John A. Sullivan III -
Mohsen Saeedi -
Shu Ming