[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [Xen-devel] memory performance 20% degradation in DomU -- Sisu

On 03/12/2014 04:50 PM, Sisu Xi wrote:
Hi, Dario:

Thanks for the reply.

The CPU i am using is i7 X 980 @ 3.33 GHz,
each core has dedicated L1(32K data, 32K inst) and L2 (256K unified) cache, all 6 cores share a 12MB L3 cache.
I pinned Dom-0 to core 0, and Dom-U to core 1.

It might be worth switching those around -- e.g., try pinning domU to core 4 / 5, or try pinning domU to core 0 and dom0 to core1, just to rule out some kind of strange NUMA / microarchitecture effect.


Xen-devel mailing list



Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.