Re: [PATCH 5/5] ioeventfd: Introduce KVM_IOEVENTFD_FLAG_SOCKET

Avi Kivity
2011-07-14T08:10:14Z

On 07/14/2011 10:26 AM, Pekka Enberg wrote:
>
> On 7/13/11 4:32 PM, Avi Kivity wrote:
>> Just how fast do you type?
>>
>> It's not enough to make something faster, it has to be slow to being
>> with. The interface is good, but use it where it helps.
>
> I don't know why you bring up serial console input here. Sasha's
> original KVM_IOEVENTFD_FLAG_PIPE patch clearly stated:
>
> A simple example for practical use is the serial port. we are not
> interested in an exit every time a char is written to the port, but
> we do need to know what was written so we could handle it on the
> guest.
>
> So it's talking about the serial console output, not input.
>

I'm talking about the real world. Is any of this something that needs
optimization?

1024 vcpus logging in via the serial console at 10Gbps. Get real.

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