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Re: [Qemu-devel] updated: kvm networking todo wiki

From: Rusty Russell
Subject: Re: [Qemu-devel] updated: kvm networking todo wiki
Date: Thu, 30 May 2013 16:48:29 +0930
User-agent: Notmuch/0.15.2+81~gd2c8818 (http://notmuchmail.org) Emacs/23.4.1 (i686-pc-linux-gnu)

Stefan Hajnoczi <address@hidden> writes:
> On Thu, May 30, 2013 at 7:23 AM, Rusty Russell <address@hidden> wrote:
>> On the receive side, what can we do better than readv?  If we need to
>> return to userspace to tell the guest that we've got a new packet, we
>> don't win on latency.  We might reduce syscall overhead with a
>> multi-dimensional readv to read multiple packets at once?
> Sounds like recvmmsg(2).

Wow... the future is here, today!


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