netdev.vger.kernel.org archive mirror
 help / color / mirror / Atom feed
From: Shirley Ma <mashirle@us.ibm.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: xiaohui.xin@intel.com, netdev@vger.kernel.org,
	kvm@vger.kernel.org, linux-kernel@vger.kernel.org, mingo@elte.hu,
	davem@davemloft.net, herbert@gondor.hengli.com.au,
	jdike@linux.intel.com
Subject: Re: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net.
Date: Mon, 02 Aug 2010 09:10:11 -0700	[thread overview]
Message-ID: <1280765411.22830.15.camel@localhost.localdomain> (raw)
In-Reply-To: <20100801083113.GB16158@redhat.com>

Hello Michael,

On Sun, 2010-08-01 at 11:31 +0300, Michael S. Tsirkin wrote:
> Could you provide an example of a good setup?
> Specifically, is it a good idea for the vhost thread
> to inherit CPU affinities from qemu? 

I need to retest my set up with multi-threads vhost. My previous set up
applies to single thread vhost. The single stream netperf/netserver set
up, for example, if we have two quad-cores sockets to get the consistent
9.4Gb/s BW:

socket 1:
cpu0: netperf/netserver
cpu1: ixgbe 10GbE NIC IRQ 
cpu2: I/O thread
cpu3: vhost thread

socket 2:
cpu0: QEMU VCPU0
cpu1: QEMU VCPU1
cpu2:
cpu3:

Thanks
Shirley


  parent reply	other threads:[~2010-08-02 16:10 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 [this message]
2010-08-03  8:48   ` Xin, Xiaohui
2010-08-03 15:50     ` Shirley Ma
2010-08-05  8:52 ` Xin, Xiaohui

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1280765411.22830.15.camel@localhost.localdomain \
    --to=mashirle@us.ibm.com \
    --cc=davem@davemloft.net \
    --cc=herbert@gondor.hengli.com.au \
    --cc=jdike@linux.intel.com \
    --cc=kvm@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    --cc=mst@redhat.com \
    --cc=netdev@vger.kernel.org \
    --cc=xiaohui.xin@intel.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).