[Starlingx-discuss] Support single huge page size for openstack worker node

[Victor Rodriguez]

Hi Tao

Thanks for sharing the information

Cristopher, I was wondering if this change with huge pages of 1 GB
affected the testing environment. Last time you, Erich and myself were
debugging the lack of memory during sanity and was mainly because of
huge pages reservations

On Wed, Aug 28, 2019 at 12:51 PM Liu, Tao <Tao.Liu at windriver.com> wrote:
>
> Hi All,
>
>
>
> The change that removes  auto-provision of huge pages has been merged into the master branch.
>
>
>
> A new provisioning step is required prior to unlocking an AIO controller or a  worker node, if vswitch_type is set to OVS-DPDK.
>
>
>
> Configure vSwitch memory per NUMA node:
>
> system host-memory-modify -f <function>  -1G <1G hugepages number> <hostname or id> <processor>
>
> i.e. system host-memory-modify -f vswitch -1G 1  compute-0 0
>

Thanks, this enables the users to choose accordingly to their needs
and performance requirements

>
>
> If you plan to create VMs using the huge pages, you would need to configure VM huge pages as well.
>
>
>
> Please make any necessary documentation changes.
>

I will encourage that important code changes like this came with the
same patch to documentation

Regards

Victor R.

>
>
>
>
> Regards,
>
> Tao
>
>
>
> From: Liu, Tao
> Sent: Tuesday, August 20, 2019 8:39 PM
> To: 'starlingx-discuss at lists.starlingx.io'
> Subject: Re: Pending: Support single huge page size for openstack worker node
>
>
>
> Hi All,
>
>
>
> The changes to support  single huge page size have been merged into master.
>
>
>
> In this first update, the auto-provision of VM huge pages has been changed from 2M to 1G.
>
>
>
> A subsequent update,  will remove the auto-provisioning of huge pages for both VM and vSwitch.
>
> If any test case is dependent on the default VM huge pages,  a new step will be required to allocate huge pages for VM on a openstack worker node.
>
> Prior to unlocking a worker node , user provisioning of the vSwitch memory would be required,  if vswitch_type is set to OVS-DPDK.
>
>
>
> Regards,
>
> Tao
>
>
>
> From: Liu, Tao
> Sent: Thursday, August 15, 2019 1:06 PM
> To: starlingx-discuss at lists.starlingx.io
> Subject: Pending: Support single huge page size for openstack worker node
>
>
>
> Hi All,
>
>
>
> Per story 2006295, we are in the process of supporting single huge page size for openstack worker node.  This means we will enforce the provisioning of a single huge page size
>
> per worker, which aligns with the non-openstack worker behavior.   The automated test cases that attempt to allocate both 2M and 1G huge pages on a worker node should be updated.
>
>
>
> The code changes are available here:
>
> https://review.opendev.org/#/c/676710/
>
>
>
>
>
> Regards,
>
>
>
> Tao Liu, Member of Technical Staff, Engineering,, Wind River
>
> direct 613.963.1413 fax: 613.492.7870 skype: tao_at_home
>
> 350 Terry Fox Drive, Suite 200, Ottawa, Ontario, K2K 2W5
>
>
>
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