Michael S. Tsirkin m...@redhat.com writes:
Defer config changed notifications that arrive during
probe/scan/freeze/restore.
This will allow drivers to set DRIVER_OK earlier, without worrying about
racing with config change interrupts.
This change will also benefit old hypervisors (before
Michael S. Tsirkin m...@redhat.com writes:
On Fri, Sep 05, 2014 at 12:40:50PM +0200, Paolo Bonzini wrote:
Il 03/09/2014 06:29, Rusty Russell ha scritto:
+ sg_init_table(rq-sg, MAX_SKB_FRAGS + 2);
I think 2 is enough here. That said...
sg_set_buf(rq-sg, hdr-hdr, sizeof hdr-hdr);
-
Michael S. Tsirkin m...@redhat.com writes:
On Mon, Oct 13, 2014 at 04:02:52PM +1030, Rusty Russell wrote:
Denis V. Lunev d...@parallels.com writes:
From: Raushaniya Maksudova rmaksud...@parallels.com
Excessive virtio_balloon inflation can cause invocation of OOM-killer,
when Linux is
On Tue, Oct 14, 2014 at 11:01:12AM +1030, Rusty Russell wrote:
Michael S. Tsirkin m...@redhat.com writes:
Defer config changed notifications that arrive during
probe/scan/freeze/restore.
This will allow drivers to set DRIVER_OK earlier, without worrying about
racing with config change
On Tue, Oct 14, 2014 at 10:14:05AM +1030, Rusty Russell wrote:
Michael S. Tsirkin m...@redhat.com writes:
On Mon, Oct 13, 2014 at 04:02:52PM +1030, Rusty Russell wrote:
Denis V. Lunev d...@parallels.com writes:
From: Raushaniya Maksudova rmaksud...@parallels.com
Excessive
From: Jason Wang jasow...@redhat.com
Date: Sat, 11 Oct 2014 15:16:43 +0800
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there. This was used to reduce the overhead of
tx interrupt to achieve better performance. But this may not work for
On Tue, Oct 14, 2014 at 02:53:27PM -0400, David Miller wrote:
From: Jason Wang jasow...@redhat.com
Date: Sat, 11 Oct 2014 15:16:43 +0800
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there. This was used to reduce the overhead of
tx
On Sat, Oct 11, 2014 at 03:16:46PM +0800, Jason Wang wrote:
We free transmitted packets in ndo_start_xmit() in the past to get better
performance in the past. One side effect is that skb_orphan() needs to be
called in ndo_start_xmit() which makes sk_wmem_alloc not accurate in
fact. For TCP
On newer hosts that support delayed tx interrupts,
we probably don't have much to gain from orphaning
packets early.
Based on patch by Jason Wang.
Note: this will likely degrade performance for hosts without event idx
support. Various fallback options are available, including
orphaning
On Tue, Oct 14, 2014 at 02:53:27PM -0400, David Miller wrote:
From: Jason Wang jasow...@redhat.com
Date: Sat, 11 Oct 2014 15:16:43 +0800
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there. This was used to reduce the overhead of
tx
On Wed, Oct 15, 2014 at 12:53:59AM +0300, Michael S. Tsirkin wrote:
static void skb_xmit_done(struct virtqueue *vq)
{
struct virtnet_info *vi = vq-vdev-priv;
+ struct send_queue *sq = vi-sq[vq2txq(vq)];
- /* Suppress further interrupts. */
- virtqueue_disable_cb(vq);
On 10/15/2014 05:51 AM, Michael S. Tsirkin wrote:
On Tue, Oct 14, 2014 at 02:53:27PM -0400, David Miller wrote:
From: Jason Wang jasow...@redhat.com
Date: Sat, 11 Oct 2014 15:16:43 +0800
We free old transmitted packets in ndo_start_xmit() currently, so any
packet must be orphaned also there.
On 10/15/2014 05:51 AM, Michael S. Tsirkin wrote:
On Sat, Oct 11, 2014 at 03:16:46PM +0800, Jason Wang wrote:
We free transmitted packets in ndo_start_xmit() in the past to get better
performance in the past. One side effect is that skb_orphan() needs to be
called in ndo_start_xmit() which
On 10/15/2014 07:11 AM, Michael S. Tsirkin wrote:
On Wed, Oct 15, 2014 at 12:53:59AM +0300, Michael S. Tsirkin wrote:
static void skb_xmit_done(struct virtqueue *vq)
{
struct virtnet_info *vi = vq-vdev-priv;
+ struct send_queue *sq = vi-sq[vq2txq(vq)];
- /* Suppress further
From: Raushaniya Maksudova rmaksud...@parallels.com
This value would be useful in the next patch to provide the amount of
the freed memory for OOM killer.
Signed-off-by: Raushaniya Maksudova rmaksud...@parallels.com
Signed-off-by: Denis V. Lunev d...@openvz.org
CC: Rusty Russell
From: Raushaniya Maksudova rmaksud...@parallels.com
Excessive virtio_balloon inflation can cause invocation of OOM-killer,
when Linux is under severe memory pressure. Various mechanisms are
responsible for correct virtio_balloon memory management. Nevertheless
it is often the case that these
On 10/15/2014 12:33 PM, Jason Wang wrote:
On 10/15/2014 07:11 AM, Michael S. Tsirkin wrote:
On Wed, Oct 15, 2014 at 12:53:59AM +0300, Michael S. Tsirkin wrote:
static void skb_xmit_done(struct virtqueue *vq)
{
struct virtnet_info *vi = vq-vdev-priv;
+ struct send_queue
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