From: Jason Wang <jasowang@redhat.com>
To: Krishna Kumar2 <krkumar2@in.ibm.com>
Cc: arnd@arndb.de, "Michael S. Tsirkin" <mst@redhat.com>,
netdev@vger.kernel.org,
virtualization@lists.linux-foundation.org,
levinsasha928@gmail.com, davem@davemloft.net
Subject: Re: [PATCH] macvtap: Fix macvtap_get_queue to use rxhash first
Date: Mon, 28 Nov 2011 12:25:15 +0800 [thread overview]
Message-ID: <4ED30D2B.10907@redhat.com> (raw)
In-Reply-To: <OF835A6FF5.7D752AD1-ON65257953.0016350C-65257953.00169AF4@in.ibm.com>
On 11/25/2011 12:09 PM, Krishna Kumar2 wrote:
> Jason Wang<jasowang@redhat.com> wrote on 11/25/2011 08:51:57 AM:
>> My description is not clear again :(
>> I mean the same vhost thead:
>>
>> vhost thread #0 transmits packets of flow A on processor M
>> ...
>> vhost thread #0 move to another process N and start to transmit packets
>> of flow A
> Thanks for clarifying. Yes, binding vhosts to CPU's
> makes the incoming packet go to the same vhost each
> time. BTW, are you doing any binding and/or irqbalance
> when you run your tests? I am not running either at
> this time, but thought both might be useful.
I'm using ixgbe for testing also, for host, its driver seems provide irq
affinity hint, so no binding or irqbalance is needed. For guest,
irqbalance is used in guest. I've tried bind irq in guest, and it can
improve the rx performance.
> - KK
>
> --
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next prev parent reply other threads:[~2011-11-28 4:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-11-24 8:17 [PATCH] macvtap: Fix macvtap_get_queue to use rxhash first Krishna Kumar
2011-11-24 9:36 ` jasowang
2011-11-24 9:59 ` Michael S. Tsirkin
2011-11-24 10:13 ` jasowang
2011-11-24 10:34 ` Michael S. Tsirkin
2011-11-24 12:56 ` jasowang
2011-11-24 16:14 ` Michael S. Tsirkin
2011-11-25 3:07 ` Krishna Kumar2
2011-11-25 3:21 ` Jason Wang
2011-11-25 4:09 ` Krishna Kumar2
2011-11-25 6:35 ` David Miller
2011-11-27 17:23 ` Michael S. Tsirkin
2011-11-28 4:40 ` Jason Wang
2011-12-07 16:10 ` Michael S. Tsirkin
2011-12-07 18:52 ` David Miller
2011-12-20 11:15 ` Michael S. Tsirkin
2011-12-20 18:46 ` David Miller
2011-12-08 9:46 ` Jason Wang
2011-11-27 17:14 ` Michael S. Tsirkin
2011-11-28 4:25 ` Jason Wang [this message]
2011-11-28 17:42 ` Stephen Hemminger
2011-11-25 3:09 ` Jason Wang
2011-11-24 11:14 ` Krishna Kumar2
2011-11-24 13:00 ` jasowang
2011-11-24 16:12 ` Michael S. Tsirkin
2011-11-25 2:58 ` Krishna Kumar2
2011-11-25 3:18 ` Jason Wang
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