Re: [PATCH net-next] virtio-net: rx busy polling support
From: Eric Dumazet
Date: Tue Jul 15 2014 - 06:21:57 EST
On Tue, 2014-07-15 at 17:41 +0800, Jason Wang wrote:
> Add basic support for rx busy polling.
> 1 byte netperf tcp_rr on mlx4 shows 116% improvement: the transaction
> rate was increased from 9151.94 to 19787.37.
This is a misleading changelog.
You forgot to describe how you allowed busy polling, as it is not
If not, this patch adds two spinlock/unlock pairs in fast path.
Also, it looks like you could split this in smaller patches.
virtnet_napi_disable_all() & virtnet_napi_enable_all() could be added in
a separate patch for example.
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