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Recent questions tagged numa

0 votes
14 responses 142 views

Please consider the support of MDEV for the /pci framework which provides support for vGPUs [0]. Accordingly to the discussion [1] With this first implementation which could be used as a skeleton for implementing PCI Devices in Resource ...

asked Oct 2, 2017 in openstack-dev by Sahid_Orentino_Ferdj (1,020 points)   1 1
0 votes
21 responses 514 views

Hello everyone, We're experiencing issues with running large instances (~60GB RAM) on fairly large NUMA nodes (4 CPUs, 256GB RAM) while using cpu pinning. The problem is that it seems that in some extreme cases qemu/KVM can have significant ...

asked Sep 28, 2017 in openstack-dev by Jakub_Jursa (280 points)   1 1 1
0 votes
6 responses 39 views

There is a desire to expose the vGPUs resources on top of Resource Provider which is probably the path we should be going in the long term. I was not there for the last PTG and you probably already made a decision about moving in that ...

asked Sep 27, 2017 in openstack-dev by Sahid_Orentino_Ferdj (1,020 points)   1 1
0 votes
9 responses 207 views

Hello everyone and thanks in advance. I have Openstack Pike (KVM,FC-SAN/Cinder) installed in our lab for testing before upgrade and am seeing a possible issue with disabling a host and live migrating the instances off via the horizon ...

asked Sep 20, 2017 in openstack by Steve_Searles (480 points)   3 3
0 votes
0 responses 21 views

Placement related items came up a lot at the Queens PTG. Some on Tuesday [1], some on Wednesday [2], some on Thursday [3] and some on Friday [4]. Priorities for Queens --------------------- The priorities for placement/scheduler related ...

asked Sep 18, 2017 in openstack-dev by mriedemos_at_gmail.c (15,720 points)   2 7 12
0 votes
2 responses 134 views

Hi I just noticed a strange (?) issue when I tried to create an instance with a flavor with hw:cpu_policy=dedicated. The instance failed with error: Unable to read from monitor: Connection reset by peer', u'code': 500, u'details': u' File ...

asked Sep 18, 2017 in openstack by Tomas_Brännström (200 points)   1 2
0 votes
9 responses 152 views

Dear all, I have a compute node with 64GB ram. And I set 50 hugepages wiht 1GB hugepage size. I used command "free", it shows free memory is about 12GB. And free hugepages is 50. Then I launch an instance with 16GB memory, set flavor tag : ...

asked Sep 8, 2017 in openstack by Weichih_Lu (160 points)   1 1
0 votes
2 responses 34 views

Hey, NUMA locality matters as much for NICs used e.g for Open vSwitch as for SR-IOV devices. At the moment, nova support NUMA affinity for PCI passthrough devices and SR-IOV devices, but it makes no attempt to do the same for other NICs. In ...

asked Sep 7, 2017 in openstack-dev by Stephen_Finucane (1,620 points)   1 5
0 votes
19 responses 119 views

I am trying to get collectd to report some alarms to vitrage in a devstack setup, I am using a devstack created on a late version of ocata. And my devstack with vitrage appears to be working ok otherwise; e.g. I can create VMs, and raise ...

asked Sep 6, 2017 in openstack-dev by Waines,_Greg (2,700 points)   1 7 14
11 x  
0 votes
10 responses 313 views

Hi List, We are running Mitaka with VLAN provider networking. We've recently encountered a problem where the UDP receive queue on instances is filling up and we begin dropping packets. Moving instances out of OpenStack onto bare metal ...

asked Jul 29, 2017 in openstack-operators by John_Petrini (1,880 points)   1 4 6
0 votes
31 responses 168 views

Hi, We are using OpenStack for managing realtime guests. We modified it and contributed to discussions on how to model the realtime feature. More recent versions of OpenStack have support for realtime, and there are a few proposals on how ...

asked Jul 6, 2017 in openstack-dev by Henning_Schild (600 points)   1 1
0 votes
5 responses 188 views

Openstackers- I am getting the familiar: *No hosts found* when launching an instance. After research I found many issues such as this at least going back to 2015. However, the solutions that were presented did not really seem to help mine, ...

asked Jun 22, 2017 in openstack by Alex_Evonosky (520 points)   1 2 2
0 votes
21 responses 15 views

There is a lot going on lately in placement-land, and some of the changes being proposed are complex enough that it is difficult to understand what the final result is supposed to look like. I have documented my understanding of the current ...

asked Jun 20, 2017 in openstack-dev by Ed_Leafe (11,720 points)   1 4 7
0 votes
20 responses 19 views

We had a very lively discussion this morning during the Scheduler subteam meeting, which was continued in a Google hangout. The subject was how to handle claiming resources when the Resource Provider is not "simple". By "simple", I mean a ...

asked Jun 9, 2017 in openstack-dev by Ed_Leafe (11,720 points)   1 4 7
2 x  
0 votes
39 responses 25 views

I just wanted to blurt this out since it hit me a few times at the summit, and see if I'm misreading the rooms. For the last few years, Nova has pushed back on adding orchestration to the compute API, and even define a policy for it since ...

asked May 26, 2017 in openstack-dev by mriedemos_at_gmail.c (15,720 points)   2 7 12
0 votes
72 responses 64 views

This email is meant to be the ML discussion of a question I brought up during the TC meeting on April 25th.; [1] The TL;DR version is: Reading the user survey [2], I see the same issues time and time again. Pages 18-19 of the survey are ...

asked May 10, 2017 in openstack-dev by Drew_Fisher (600 points)   1 4
3 x  
0 votes
0 responses 6 views

Placement and resource providers update 21. Please let me know if anything is incorrect or missing. If you're going to be in Boston there are some placement related sessions that may be worth your while: * Scheduler Wars: A New Hope ...

asked May 5, 2017 in openstack-dev by cdent_plus_os_at_ant (12,800 points)   2 2 7
0 votes
3 responses 89 views

Hi all, I created 2 instances on the same compute node and tested the bandwidth between them, surprisingly iperf tells me I got 16.1Gbits/sec only. Then I changed the firewall from hybrid iptables to ovs, the bandwidth improved a little bit ...

asked Apr 19, 2017 in openstack by Manuel_Sopena_Balles (600 points)   2 3 7
0 votes
3 responses 57 views

Hi, After reading the following articles: ...

asked Apr 13, 2017 in openstack-operators by Paco_Bernabé (200 points)   1
3 x  
0 votes
15 responses 195 views

Hello, I'd like to start voting to include Duong (duonghq) in Kolla and Kolla-ansible core teams. Voting will be open for 2 weeks (ends at 21st of March). Consider this my +1 vote. Cheers, Michal ...

asked Mar 22, 2017 in openstack-dev by Michał_Jastrzębski (9,220 points)   1 5 8