Re: [PATCH net-next 2/2] net: exit busy loop when another process is runnable
From: Peter Zijlstra <peterz@infradead.org>
Date: 2014-09-03 09:36:11
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On Wed, Sep 03, 2014 at 03:33:23PM +0800, Jason Wang wrote:
A new issue is for virt users. I implement busy polling for virtio-net but we don't want one vcpu monopoly the cpu if there's some tasks on other vcpus. We may need some hint from host to guest to let it exit the loop if needed.
Aw god.. virt nonsense is wrecking things again.