similar to: [PATCH V8 1/3] virtio-net: fix the set affinity bug when CPU IDs are not consecutive

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

As Michael mentioned, set affinity and select queue will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs, and create a per cpu variable to find the mapping from CPU to the preferable virtual-queue. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing use to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support, there's

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing use to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support, there's

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing use to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support, there's

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing use to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support, there's

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing user to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support,

We used to use a percpu structure vq_index to record the cpu to queue mapping, this is suboptimal since it duplicates the work of XPS and loses all other XPS functionality such as allowing user to configure their own transmission steering strategy. So this patch switches to use XPS and suggest a default mapping when the number of cpus is equal to the number of queues. With XPS support,

As M.S.T mentioned, set affinity will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason Wang <jasowang at redhat.com> Cc: Eric Dumazet <erdnetdev at gmail.com> Cc: virtualization at

As M.S.T mentioned, set affinity will not work very well when CPU IDs are not consecutive, this can happen with hot unplug. Fix this bug by traversal the online CPUs. Cc: Rusty Russell <rusty at rustcorp.com.au> Cc: "Michael S. Tsirkin" <mst at redhat.com> Cc: Jason Wang <jasowang at redhat.com> Cc: Eric Dumazet <erdnetdev at gmail.com> Cc: virtualization at

On Fri, Sep 27, 2013 at 01:57:24PM +0800, Jason Wang wrote: > We used to use a percpu structure vq_index to record the cpu to queue > mapping, this is suboptimal since it duplicates the work of XPS and > loses all other XPS functionality such as allowing use to configure > their own transmission steering strategy. > > So this patch switches to use XPS and suggest a default

On Mon, Sep 30, 2013 at 03:37:17PM +0800, Jason Wang wrote: > We used to use a percpu structure vq_index to record the cpu to queue > mapping, this is suboptimal since it duplicates the work of XPS and > loses all other XPS functionality such as allowing use to configure > their own transmission steering strategy. > > So this patch switches to use XPS and suggest a default