Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this. Thank you. Regards, Ales Musil -- Ales Musil Software Engineer - RHV Network Red Hat EMEA <https://www.redhat.com> amusil@redhat.com IM: amusil <https://red.ht/sig>
On Tue, Nov 3, 2020 at 1:07 PM Ales Musil <amusil@redhat.com> wrote:
Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this.
Can you give more info why we want to remove this feature, and what is the replacement for existing users? Nir
On Tue, Nov 3, 2020 at 1:52 PM Nir Soffer <nsoffer@redhat.com> wrote:
On Tue, Nov 3, 2020 at 1:07 PM Ales Musil <amusil@redhat.com> wrote:
Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this.
Can you give more info why we want to remove this feature, and what is the replacement for existing users?
Nir
Sure, the feature was only experimental and not maintained for a long time. The replacement is to use SR-IOV which is supported by oVirt. Thanks, Ales -- Ales Musil Software Engineer - RHV Network Red Hat EMEA <https://www.redhat.com> amusil@redhat.com IM: amusil <https://red.ht/sig>
Hi Ales, what do you mean with "not maintained for a long time"? DPDK is heavily developed and make the linux network extremely fast. I don't think, that SR-IOV can replace it, because packets must be still processed by the kernel, which is really slow and CPU demanding. BR Florian Von: "Ales Musil" <amusil@redhat.com> An: "Nir Soffer" <nsoffer@redhat.com> CC: "users" <users@ovirt.org>, "devel" <devel@ovirt.org> Gesendet: Dienstag, 3. November 2020 13:56:12 Betreff: [ovirt-users] Re: Removal of dpdk On Tue, Nov 3, 2020 at 1:52 PM Nir Soffer < [ mailto:nsoffer@redhat.com | nsoffer@redhat.com ] > wrote: On Tue, Nov 3, 2020 at 1:07 PM Ales Musil < [ mailto:amusil@redhat.com | amusil@redhat.com ] > wrote: BQ_BEGIN Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this. Can you give more info why we want to remove this feature, and what is the replacement for existing users? Nir BQ_END Sure, the feature was only experimental and not maintained for a long time. The replacement is to use SR-IOV which is supported by oVirt. Thanks, Ales -- Ales Musil Software Engineer - RHV Network [ https://www.redhat.com/ | Red Hat EMEA ] [ mailto:amusil@redhat.com | amusil@redhat.com ] IM: amusil [ https://red.ht/sig | ] _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/3FHIRQKEEKLGWL...
On Tue, Nov 3, 2020 at 3:17 PM Florian Schmid <fschmid@ubimet.com> wrote:
Hi Ales,
what do you mean with "not maintained for a long time"? DPDK is heavily developed and make the linux network extremely fast.
I don't think, that SR-IOV can replace it, because packets must be still processed by the kernel, which is really slow and CPU demanding.
BR Florian
------------------------------ *Von: *"Ales Musil" <amusil@redhat.com> *An: *"Nir Soffer" <nsoffer@redhat.com> *CC: *"users" <users@ovirt.org>, "devel" <devel@ovirt.org> *Gesendet: *Dienstag, 3. November 2020 13:56:12 *Betreff: *[ovirt-users] Re: Removal of dpdk
The dpdk inside oVirt is not maintained, of course that dpdk as technology/project is still developed.
On Tue, Nov 3, 2020 at 1:52 PM Nir Soffer <nsoffer@redhat.com> wrote:
On Tue, Nov 3, 2020 at 1:07 PM Ales Musil <amusil@redhat.com> wrote:
Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this.
Can you give more info why we want to remove this feature, and what is the replacement for existing users?
Nir
Sure, the feature was only experimental and not maintained for a long time. The replacement is to use SR-IOV which is supported by oVirt.
Thanks, Ales
--
Ales Musil
Software Engineer - RHV Network
Red Hat EMEA <https://www.redhat.com>
amusil@redhat.com IM: amusil <https://red.ht/sig>
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/3FHIRQKEEKLGWL...
-- Ales Musil Software Engineer - RHV Network Red Hat EMEA <https://www.redhat.com> amusil@redhat.com IM: amusil <https://red.ht/sig>
Hi Florian, thanks for your thoughts! On Tue, Nov 3, 2020 at 3:21 PM Florian Schmid via Users <users@ovirt.org> wrote:
Hi Ales,
what do you mean with "not maintained for a long time"?
The oVirt integration of dpdk was not maintained.
DPDK is heavily developed and make the linux network extremely fast.
I don't think, that SR-IOV can replace it,
The removal of dpdk is about removing the dpdk support from oVirt hosts only. We wonder if there is someone using dpdk to attach oVirt VMs to physical NICs. We are aware that many users use SR-IOV, especially for scenarios of enabling a high count of Ethernet frames for VMs or requiring a low latency, but we are not aware of users using dpdk to connect the oVirt VMs to the physical NICs of the host.
because packets must be still processed by the kernel, which is really slow and CPU demanding.
In SR-IOV the packets might be processed by the guest kernel, not but the host kernel. oVirt is focused on the host kernel, while the guest OS is managed by the user of oVirt. Did this explanation address your concerns? BR Florian
------------------------------ *Von: *"Ales Musil" <amusil@redhat.com> *An: *"Nir Soffer" <nsoffer@redhat.com> *CC: *"users" <users@ovirt.org>, "devel" <devel@ovirt.org> *Gesendet: *Dienstag, 3. November 2020 13:56:12 *Betreff: *[ovirt-users] Re: Removal of dpdk
On Tue, Nov 3, 2020 at 1:52 PM Nir Soffer <nsoffer@redhat.com> wrote:
On Tue, Nov 3, 2020 at 1:07 PM Ales Musil <amusil@redhat.com> wrote:
Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this.
Can you give more info why we want to remove this feature, and what is the replacement for existing users?
Nir
Sure, the feature was only experimental and not maintained for a long time. The replacement is to use SR-IOV which is supported by oVirt.
Thanks, Ales
--
Ales Musil
Software Engineer - RHV Network
Red Hat EMEA <https://www.redhat.com>
amusil@redhat.com IM: amusil <https://red.ht/sig>
_______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/3FHIRQKEEKLGWL... _______________________________________________ Users mailing list -- users@ovirt.org To unsubscribe send an email to users-leave@ovirt.org Privacy Statement: https://www.ovirt.org/privacy-policy.html oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/ZCAYTHVZPOZF3M...
Hi Dominik, I don't have any concerns, I only wanted to know, why it will be removed, because it can increase network performance a lot. Thank you very much for your explanation. I fully understand, that you want to remove features, when nobody is using them. BR Florian Von: "Dominik Holler" <dholler@redhat.com> An: "Florian Schmid" <fschmid@ubimet.com> CC: "Ales Musil" <amusil@redhat.com>, "users" <users@ovirt.org>, "devel" <devel@ovirt.org> Gesendet: Mittwoch, 4. November 2020 12:15:47 Betreff: Re: [ovirt-users] Re: Removal of dpdk Hi Florian, thanks for your thoughts! On Tue, Nov 3, 2020 at 3:21 PM Florian Schmid via Users < [ mailto:users@ovirt.org | users@ovirt.org ] > wrote: Hi Ales, what do you mean with "not maintained for a long time"? The oVirt integration of dpdk was not maintained. BQ_BEGIN DPDK is heavily developed and make the linux network extremely fast. I don't think, that SR-IOV can replace it, BQ_END The removal of dpdk is about removing the dpdk support from oVirt hosts only. We wonder if there is someone using dpdk to attach oVirt VMs to physical NICs. We are aware that many users use SR-IOV, especially for scenarios of enabling a high count of Ethernet frames for VMs or requiring a low latency, but we are not aware of users using dpdk to connect the oVirt VMs to the physical NICs of the host. BQ_BEGIN because packets must be still processed by the kernel, which is really slow and CPU demanding. BQ_END In SR-IOV the packets might be processed by the guest kernel, not but the host kernel. oVirt is focused on the host kernel, while the guest OS is managed by the user of oVirt. Did this explanation address your concerns? BQ_BEGIN BR Florian Von: "Ales Musil" < [ mailto:amusil@redhat.com | amusil@redhat.com ] > An: "Nir Soffer" < [ mailto:nsoffer@redhat.com | nsoffer@redhat.com ] > CC: "users" < [ mailto:users@ovirt.org | users@ovirt.org ] >, "devel" < [ mailto:devel@ovirt.org | devel@ovirt.org ] > Gesendet: Dienstag, 3. November 2020 13:56:12 Betreff: [ovirt-users] Re: Removal of dpdk On Tue, Nov 3, 2020 at 1:52 PM Nir Soffer < [ mailto:nsoffer@redhat.com | nsoffer@redhat.com ] > wrote: BQ_BEGIN On Tue, Nov 3, 2020 at 1:07 PM Ales Musil < [ mailto:amusil@redhat.com | amusil@redhat.com ] > wrote: BQ_BEGIN Hello, we have decided to remove dpdk in the upcoming version of oVirt namely 4.4.4. Let us know if there are any concerns about this. BQ_END Can you give more info why we want to remove this feature, and what is the replacement for existing users? Nir BQ_END Sure, the feature was only experimental and not maintained for a long time. The replacement is to use SR-IOV which is supported by oVirt. Thanks, Ales -- Ales Musil Software Engineer - RHV Network [ https://www.redhat.com/ | Red Hat EMEA ] [ mailto:amusil@redhat.com | amusil@redhat.com ] IM: amusil [ https://red.ht/sig | ] _______________________________________________ Users mailing list -- [ mailto:users@ovirt.org | users@ovirt.org ] To unsubscribe send an email to [ mailto:users-leave@ovirt.org | users-leave@ovirt.org ] Privacy Statement: [ https://www.ovirt.org/privacy-policy.html | https://www.ovirt.org/privacy-policy.html ] oVirt Code of Conduct: [ https://www.ovirt.org/community/about/community-guidelines/ | https://www.ovirt.org/community/about/community-guidelines/ ] List Archives: [ https://lists.ovirt.org/archives/list/users@ovirt.org/message/3FHIRQKEEKLGWL... | https://lists.ovirt.org/archives/list/users@ovirt.org/message/3FHIRQKEEKLGWL... ] _______________________________________________ Users mailing list -- [ mailto:users@ovirt.org | users@ovirt.org ] To unsubscribe send an email to [ mailto:users-leave@ovirt.org | users-leave@ovirt.org ] Privacy Statement: [ https://www.ovirt.org/privacy-policy.html | https://www.ovirt.org/privacy-policy.html ] oVirt Code of Conduct: [ https://www.ovirt.org/community/about/community-guidelines/ | https://www.ovirt.org/community/about/community-guidelines/ ] List Archives: [ https://lists.ovirt.org/archives/list/users@ovirt.org/message/ZCAYTHVZPOZF3M... | https://lists.ovirt.org/archives/list/users@ovirt.org/message/ZCAYTHVZPOZF3M... ] BQ_END
participants (4)
-
Ales Musil -
Dominik Holler -
Florian Schmid -
Nir Soffer