linux-kernel - [PATCH RFC 0/2] virtio-net: interrupt related improvements

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Message-ID: <20181205225323.12555-1-mst@redhat.com>
Date:   Wed, 5 Dec 2018 17:54:09 -0500
From:   "Michael S. Tsirkin" <mst@...hat.com>
To:     linux-kernel@...r.kernel.org
Cc:     maxime.coquelin@...hat.com, tiwei.bie@...el.com, wexu@...hat.com,
        jfreimann@...hat.com, virtualization@...ts.linux-foundation.org,
        netdev@...r.kernel.org, Jason Wang <jasowang@...hat.com>
Subject: [PATCH RFC 0/2] virtio-net: interrupt related improvements

Now that we have brought the virtio overhead way down with a fast packed
ring implementation, we seem to be actually observing TCP drops
indicative of bufferbloat. So let's try to enable TSQ.  Note: it isn't
clear that the default pacing is great for the virt usecase. It's worth
trying to play with sk_pacing_shift_update to see what happens.

For this reason, and for a more important one that I didn't
have time to test it yet, sending as an RFC.

Michael S. Tsirkin (2):
  virtio-net: bql support
  virtio_net: bulk free tx skbs

 drivers/net/virtio_net.c | 29 ++++++++++++++++++++---------
 1 file changed, 20 insertions(+), 9 deletions(-)

-- 
MST