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Re: [libvirt] [PATCH] RPC: Support up to 4096 cpus on the host and 256 in the guest



On 05/28/13 14:50, Eric Blake wrote:
On 05/28/2013 06:35 AM, Peter Krempa wrote:
The RPC limits for cpu maps didn't allow to use libvirt on ultra big
boxes. This patch increases size of the limits to support a maximum of
4096 cpus on the host with the built-in maximum of 256 cpus per guest.
The full cpu map of such a system takes 128 kilobytes and the map for
vcpu pinning is 512 bytes long.
---
  src/remote/remote_protocol.x | 6 +++---
  1 file changed, 3 insertions(+), 3 deletions(-)

We missed rc1 - is this still worth getting into 1.0.6?

I'm not opposed to the change, just questioning the timing of it.


I don't mind waiting until after the release to push this. Anyways this should be safe as we are just raising the limits and with some trickery I was able to verify that RPC is okay with transporting this amount of information this by reporting fake counts of cpus.

Peter


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