Re: [RFC PATCH 00/17] virtual-bus

From: Anthony Liguori
Date: Thu Apr 02 2009 - 10:49:53 EST


Avi Kivity wrote:
Avi Kivity wrote:

The alternative is to get a notification from the stack that the packet is done processing. Either an skb destructor in the kernel, or my new API that everyone is not rushing out to implement.

btw, my new api is


io_submit(..., nr, ...): submit nr packets
io_getevents(): complete nr packets

I don't think we even need that to end this debate. I'm convinced we have a bug somewhere. Even disabling TX mitigation, I see a ping latency of around 300ns whereas it's only 50ns on the host. This defies logic so I'm now looking to isolate why that is.

Regards,

Anthony Liguori

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