On 06/26/2012 02:01 AM, Shirley Ma wrote:
Hello Jason,
Good work. Do you have local guest to guest results?
Thanks
Shirley
Hi Shirley:
I would run tests to measure the performance and post here.
Thanks
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On 06/26/2012 01:49 AM, Sridhar Samudrala wrote:
On 6/25/2012 2:16 AM, Jason Wang wrote:
Hello All:
This series is an update version of multiqueue virtio-net driver
based on
Krishna Kumar's work to let virtio-net use multiple rx/tx queues to
do the
packets reception and transmission. Please
On 06/25/2012 06:14 PM, Michael S. Tsirkin wrote:
On Mon, Jun 25, 2012 at 05:41:17PM +0800, Jason Wang wrote:
Device specific irq optimizations such as irq affinity may be used by virtio
drivers. So this patch introduce a new method to get the irq of a specific
virtqueue.
After this patch, virt
On Mon, Jun 25, 2012 at 07:31:38PM -0400, Konrad Rzeszutek Wilk wrote:
> On Mon, Jun 25, 2012 at 7:25 PM, Rafael Aquini wrote:
> > This patch introduces helper functions that teach compaction and migration
> > bits
> > how to cope with pages which are part of a guest memory balloon, in order to
>
On Mon, Jun 25, 2012 at 7:25 PM, Rafael Aquini wrote:
> This patch introduces helper functions that teach compaction and migration
> bits
> how to cope with pages which are part of a guest memory balloon, in order to
> make them movable by memory compaction procedures.
>
Should the names that ar
This patch is only for testing report purposes and shall be dropped in case of
the rest of this patchset getting accepted for merging.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c |1 +
include/linux/vm_event_item.h |2 ++
mm/compaction.c |4 +++-
This patch makes balloon pages movable at allocation time and introduces the
infrastructure needed to perform the balloon page migration operation.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c | 96 ++-
include/linux/virtio_balloon.h |
This patch introduces access sychronization to critical elements of struct
virtio_balloon, in order to allow the thread concurrency compaction/migration
bits might ended up imposing to the balloon driver on several situations.
Signed-off-by: Rafael Aquini
---
drivers/virtio/virtio_balloon.c |
This patch introduces helper functions that teach compaction and migration bits
how to cope with pages which are part of a guest memory balloon, in order to
make them movable by memory compaction procedures.
Signed-off-by: Rafael Aquini
---
include/linux/mm.h | 17 +
mm/compaction.
This patchset follows the main idea discussed at 2012 LSFMMS section:
"Ballooning for transparent huge pages" -- http://lwn.net/Articles/490114/
to introduce the required changes to the virtio_balloon driver, as well as
changes to the core compaction & migration bits, in order to allow
memory ball
Hello Jason,
Good work. Do you have local guest to guest results?
Thanks
Shirley
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On 6/25/2012 2:16 AM, Jason Wang wrote:
Hello All:
This series is an update version of multiqueue virtio-net driver based on
Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the
packets reception and transmission. Please review and comments.
Test Environment:
- Intel(R) Xe
On 6/25/2012 3:07 AM, Michael S. Tsirkin wrote:
On Mon, Jun 25, 2012 at 05:16:48PM +0800, Jason Wang wrote:
Hello All:
This series is an update version of multiqueue virtio-net driver based on
Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the
packets reception and trans
On Mon, Jun 25, 2012 at 05:41:17PM +0800, Jason Wang wrote:
> Device specific irq optimizations such as irq affinity may be used by virtio
> drivers. So this patch introduce a new method to get the irq of a specific
> virtqueue.
>
> After this patch, virtio device drivers could query the irq and d
This patch let the virtio-net can transmit and recevie packets through multiuple
VLANClientStates and abstract them as multiple virtqueues to guest. A new
parameter 'queues' were introduced to specify the number of queue pairs.
The main goal for vhost support is to let the multiqueue could be used
This patch adds the multiqueues support for emulated nics. Each VLANClientState
pairs are now abstract as a queue instead of a nic, and multiple VLANClientState
pointers were stored in the NICState. A queue_index were also introduced to let
the emulated nics know which queue the packet were came fr
This patch adds basic support for the multiple queue capable tap device. When
multiqueue were enabled for a tap device, user can attach/detach multiple files
(sockets) to the device through TUNATTACHQUEUE/TUNDETACHQUEUE.
Two helpers tun_attach() and tun_deatch() were introduced to attach and detac
Sometimes, we need to pass option like -netdev tap,fd=100,fd=101,fd=102 which
can not be properly parsed by qemu_find_opt() because it only returns the first
matched option. So qemu_get_opt_all() were introduced to return an array of
pointers which contains all matched option.
Signed-off-by: Jason
Hello all:
This seires is an update of last version of multiqueue support to add multiqueue
capability to both tap and virtio-net.
Some kinds of tap backends has (macvatp in linux) or would (tap) support
multiqueue. In such kind of tap backend, each file descriptor of a tap is a
qeueu and ioctls
On Mon, Jun 25, 2012 at 05:16:48PM +0800, Jason Wang wrote:
> Hello All:
>
> This series is an update version of multiqueue virtio-net driver based on
> Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the
> packets reception and transmission. Please review and comments.
>
>
This addes multiqueue support to virtio_net driver. This feature is negotiated
through VIRTIO_NET_F_MULTIQUEUE.
The driver expects the number of rx/tx queue paris is equal to the number of
vcpus. To maximize the performance under this per-cpu rx/tx queue pairs, some
optimization were introduced:
Device specific irq optimizations such as irq affinity may be used by virtio
drivers. So this patch introduce a new method to get the irq of a specific
virtqueue.
After this patch, virtio device drivers could query the irq and do device
specific optimizations. First user would be virtio-net.
Sign
Instead of storing the queue index in virtio infos, this patch moves them to
vring_virtqueue and introduces helpers to set and get the value. This would
simplify the management and tracing.
Signed-off-by: Jason Wang
---
drivers/virtio/virtio_mmio.c |5 +
drivers/virtio/virtio_pci.c |
From: Krishna Kumar
Introduce VIRTIO_NET_F_MULTIQUEUE.
Signed-off-by: Krishna Kumar
Signed-off-by: Jason Wang
---
include/linux/virtio_net.h |1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/include/linux/virtio_net.h b/include/linux/virtio_net.h
index 2470f54..1bc7e30
Hello All:
This series is an update version of multiqueue virtio-net driver based on
Krishna Kumar's work to let virtio-net use multiple rx/tx queues to do the
packets reception and transmission. Please review and comments.
Test Environment:
- Intel(R) Xeon(R) CPU E5620 @ 2.40GHz, 8 cores 2 numa
On Mon, Jun 25, 2012 at 03:51:13AM -0400, m...@linux.vnet.ibm.com wrote:
>
> Quoting Stefan Hajnoczi :
>
> >On Wed, Jun 20, 2012 at 7:47 AM, Cong Meng wrote:
> >>Implement the hotplug() and hot_unplug() interfaces in virtio-scsi,
> >>by signal
> >>the virtio_scsi.ko in guest kernel via event vir
Quoting Stefan Hajnoczi :
On Wed, Jun 20, 2012 at 7:47 AM, Cong Meng wrote:
Implement the hotplug() and hot_unplug() interfaces in virtio-scsi,
by signal
the virtio_scsi.ko in guest kernel via event virtual queue.
The counterpart patch of virtio_scsi.ko will be sent soon in another thread.
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