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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
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