From: Shirley Ma <mashirle@us.ibm.com>
To: "Xin, Xiaohui" <xiaohui.xin@intel.com>
Cc: "netdev@vger.kernel.org" <netdev@vger.kernel.org>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"mst@redhat.com" <mst@redhat.com>,
"mingo@elte.hu" <mingo@elte.hu>,
"davem@davemloft.net" <davem@davemloft.net>,
"herbert@gondor.apana.org.au" <herbert@gondor.apana.org.au>,
"jdike@linux.intel.com" <jdike@linux.intel.com>
Subject: RE: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net.
Date: Tue, 03 Aug 2010 08:50:20 -0700 [thread overview]
Message-ID: <1280850620.3391.4.camel@localhost.localdomain> (raw)
In-Reply-To: <F2E9EB7348B8264F86B6AB8151CE2D791BAB307B7E@shsmsx502.ccr.corp.intel.com>
Hello Xiaohui,
On Tue, 2010-08-03 at 16:48 +0800, Xin, Xiaohui wrote:
> May you share me with your performance results (including BW and
> latency)on
> vhost-net and how you get them(your configuration and especially with
> the affinity
> settings)?
My macvtap zero copy is incomplete, I am testing sendmsg only now. The
initial performance is not good especially for latency (zero copy vs.
copy). I am still working on it to find out why and how to improve.
That's the reason I am eager to know your performance results and how
much performance gain you have seen.
Since your patch has completed. I would try your patch here for
performance. If you have some performance results to share here that
would be great.
Thanks
Shirley
next prev parent reply other threads:[~2010-08-03 15:50 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-29 11:14 [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 01/16] Add a new structure for skb buffer from external xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 02/16] Add a new struct for device to manipulate external buffer xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 03/16] Add a ndo_mp_port_prep func to net_device_ops xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 04/16] Add a function make external buffer owner to query capability xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 05/16] Add a function to indicate if device use external buffer xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 06/16] Use callback to deal with skb_release_data() specially xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 07/16] Modify netdev_alloc_page() to get external buffer xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 08/16] Modify netdev_free_page() to release " xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 09/16] Don't do skb recycle, if device use " xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 10/16] Add a hook to intercept external buffers from NIC driver xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 11/16] Add header file for mp device xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 13/16] Add a kconfig entry and make entry " xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 12/16] Add mp(mediate passthru) device xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 14/16] Provides multiple submits and asynchronous notifications xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 15/16] An example how to modifiy NIC driver to use napi_gro_frags() interface xiaohui.xin
2010-07-29 11:14 ` [RFC PATCH v8 16/16] An example how to alloc user buffer based on " xiaohui.xin
2010-07-29 22:31 ` [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net Shirley Ma
2010-07-30 5:02 ` Avi Kivity
2010-07-30 15:46 ` Shirley Ma
2010-08-01 8:18 ` Avi Kivity
2010-08-02 16:01 ` Shirley Ma
2010-08-02 16:11 ` Avi Kivity
2010-08-02 16:25 ` Shirley Ma
2010-08-02 16:32 ` Avi Kivity
2010-08-11 3:28 ` Shirley Ma
2010-07-30 8:53 ` Xin, Xiaohui
2010-07-30 15:51 ` Shirley Ma
2010-07-31 9:30 ` Arnd Bergmann
2010-08-04 2:06 ` Dong, Eddie
2010-08-04 8:56 ` Arnd Bergmann
2010-08-04 17:09 ` Shirley Ma
2010-08-01 8:31 ` Michael S. Tsirkin
2010-08-02 16:04 ` Shirley Ma
2010-08-02 16:10 ` Shirley Ma
2010-08-03 8:48 ` Xin, Xiaohui
2010-08-03 15:50 ` Shirley Ma [this message]
2010-08-05 8:52 ` Xin, Xiaohui
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