netdev - Re: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM virtio-net.

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1280765411.22830.15.camel@localhost.localdomain>
Date:	Mon, 02 Aug 2010 09:10:11 -0700
From:	Shirley Ma <mashirle@...ibm.com>
To:	"Michael S. Tsirkin" <mst@...hat.com>
Cc:	xiaohui.xin@...el.com, netdev@...r.kernel.org, kvm@...r.kernel.org,
	linux-kernel@...r.kernel.org, mingo@...e.hu, davem@...emloft.net,
	herbert@...dor.hengli.com.au, jdike@...ux.intel.com
Subject: Re: [RFC PATCH v8 00/16] Provide a zero-copy method on KVM
 virtio-net.

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

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html