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https://wiki.xen.org/wiki/Xen_NUMA_Roadmap
Started, but not yet ready to leave some developer's private patch queue in their dev-boxes. The need to support both HVM and PV guests complicate things quite a bit. Xenbus, qemu, a lot of inherent characteristics of the Xen architecture get in the way of having it simply done within the hypervisor (as it happens for NUMA aware scheduling).
https://support.citrix.com/article/CTX139714
This article describes how to use the host-cpu-tune system utility distributed with XenServer 6.2.0. This tool allows XenServer administrators to configure a host's dom0 vCPU count and pinning strategy. This article is for administrators who want to fine-tune their XenServer 6.2.0 …
https://xenproject.org/2012/04/26/numa-and-xen-part-1-introduction/
Apr 26, 2012 · NUMA and Xen. The Xen hypervisor already deals with NUMA in a number of ways. For example, each domain has its own “node affinity”, which is the set of NUMA nodes of the host from which memory for that domain is allocated (in equal parts).
https://discussions.citrix.com/topic/266761-xenserver-56-numa-support/
Nov 04, 2010 · Inserting acpi=on numa=on as a xen boot parameter should enable NUMA support (by default it is off). I believe that by default it would then pick the least busiest node (which can hold the requested memory) and restrict the VM to that node (by only allowing CPUs of that node).
https://wiki.xenproject.org/wiki/Tuning_Xen_for_Performance
NUMA Aware Scheduling: for achieving the best possible locality, while the VM is running. Starting from Xen 4.5, NUMA aware scheduling is implemented by means of scheduling soft affinity. To find out more about NUMA within this Wiki, check out the various pages from the proper category: Category:NUMA. Performance bugs
https://www.slideshare.net/xen_com_mgr/numa-and-virtualization-the-case-of-xen
Sep 19, 2012 · NUMA and Virtualization, the case of Xen 1. NUMA and Virtualization, the case of Xen Dario Faggioli, [email protected] 27-28, 2012, Dario Faggioli,San Diego, CA, USA [email protected]
https://wiki.xen.org/wiki/Category:NUMA
NUMA (Non Uniform Memory Access) means that memory access times of a program running on a CPU depends on the relative distance between the specific CPU and memory area. In fact, in NUMA systems, there usually is more than one memory controller, each one local to a …
http://old-list-archives.xenproject.org/archives/html/xen-devel/2007-09/msg00374.html
Hi Andre, Andre Przywara wrote: [Fri Sep 14 2007, 08:05:26AM EDT] > We came up with two different approaches for better NUMA support in Xen: > 1.) Guest NUMA support: spread a guest's resources (CPUs and memory) over > several nodes and propagate the appropriate topology to the guest. > The first part of this is in the patches I sent recently to the list (PV > support is following, bells and ...
https://support.citrix.com/article/CTX117960
This article describes how to set the virtual CPU management of Virtual Machines (VM) running on a Citrix XenServer. Background. In the default setup of XenServer, physical CPU resources are split between VMs using a fair-share balancing algorithm.
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