RE: IVSHMEM device performance

Eli Britstein
2016-04-17T15:57:35Z

OK, but if so, my suspicious about the performance penalty is wrong, and I don't have any other thought.
Do you?

> -----Original Message-----
> From: Paolo Bonzini [mailto:pbonzini@redhat.com]
> Sent: Sunday, 17 April, 2016 3:04 PM
> To: Eli Britstein; kvm@vger.kernel.org
> Subject: Re: IVSHMEM device performance
>
>
>
> On 17/04/2016 09:18, Eli Britstein wrote:
> > Attached. Also, if need to change ioremap to ioremap_cache, please
> > advise where. I assume in mmap it is already too late.
>
> No, you need not do that. If memory was uncached, the performance
> penalty would be 100x or worse.
>
> Paolo
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