On 2018年09月07日 01:51, Michael S. Tsirkin wrote:
On Thu, Sep 06, 2018 at 12:05:24PM +0800, Jason Wang wrote:
This patch implement TUN_MSG_PTR msg_control type. This type allows
the caller to pass an array of XDP buffs to tuntap through ptr field
of the tun_msg_control. If an XDP program is
On Fri, Sep 07, 2018 at 02:03:57AM +, YueHaibing wrote:
> Fixes gcc '-Wunused-but-set-variable' warning:
>
> drivers/gpu/drm/virtio/virtgpu_display.c: In function
> 'virtio_gpu_framebuffer_init':
> drivers/gpu/drm/virtio/virtgpu_display.c:78:28: warning:
> variable 'bo' set but not used
The condition to test is unlikely() to be true. Add the hint.
Signed-off-by: Igor Stoppa
Cc: "Michael S. Tsirkin"
Cc: Jason Wang
Cc: Virtualization@lists.linux-foundation.org
Cc: linux-ker...@vger.kernel.org
---
tools/virtio/linux/kernel.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
On Fri, Sep 07, 2018 at 03:41:52PM +0800, Jason Wang wrote:
> > > @@ -556,10 +667,14 @@ static void handle_tx_copy(struct vhost_net *net,
> > > struct socket *sock)
> > > size_t len, total_len = 0;
> > > int err;
> > > int sent_pkts = 0;
> > > + bool bulking =
* Wei Wang (wei.w.w...@intel.com) wrote:
> On 07/23/2018 10:36 PM, Dr. David Alan Gilbert wrote:
> > * Michael S. Tsirkin (m...@redhat.com) wrote:
> > > On Fri, Jul 20, 2018 at 04:33:00PM +0800, Wei Wang wrote:
> > > > This patch series is separated from the previous "Virtio-balloon
> > > >
On Fri, Sep 07, 2018 at 09:22:25AM +0800, Tiwei Bie wrote:
> On Mon, Aug 27, 2018 at 05:00:40PM +0300, Michael S. Tsirkin wrote:
> > Are there still plans to test the performance with vost pmd?
> > vhost doesn't seem to show a performance gain ...
> >
>
> I tried some performance tests with
On Fri, Sep 07, 2018 at 11:29:34AM +0800, Jason Wang wrote:
> > > + if (act != XDP_PASS)
> > > + goto out;
> > likely?
>
> It depends on the XDP program, so I tend not to use it.
Point is XDP_PASS is already slow.
--
MST
___
On Wed, Jul 11, 2018 at 10:27:09AM +0800, Tiwei Bie wrote:
> This commit introduces the support (without EVENT_IDX) for
> packed ring.
>
> Signed-off-by: Tiwei Bie
> ---
> drivers/virtio/virtio_ring.c | 495 ++-
> 1 file changed, 487 insertions(+), 8 deletions(-)
On Wed, Jul 11, 2018 at 10:27:08AM +0800, Tiwei Bie wrote:
> This commit introduces the support for creating packed ring.
> All split ring specific functions are added _split suffix.
> Some necessary stubs for packed ring are also added.
>
> Signed-off-by: Tiwei Bie
I'd rather have a patch just
On Wed, Jul 11, 2018 at 10:27:10AM +0800, Tiwei Bie wrote:
> This commit introduces the EVENT_IDX support in packed ring.
>
> Signed-off-by: Tiwei Bie
Besides the usual comment about hard-coded constants like <<15:
does this actually do any good for performance? We don't
have to if we do not
On Wed, Jul 11, 2018 at 10:27:07AM +0800, Tiwei Bie wrote:
> Signed-off-by: Tiwei Bie
> ---
> include/uapi/linux/virtio_config.h | 3 +++
> include/uapi/linux/virtio_ring.h | 43 ++
> 2 files changed, 46 insertions(+)
>
> diff --git
On Fri, Sep 07, 2018 at 11:22:00AM +0800, Jason Wang wrote:
> > > @@ -1668,6 +1668,9 @@ static struct sk_buff *tun_build_skb(struct
> > > tun_struct *tun,
> > > if (copied != len)
> > > return ERR_PTR(-EFAULT);
> > > + get_page(alloc_frag->page);
> > > +
/linux/commits/Peter-Wu/bochs-convert-to-drm_fb_helper_fbdev_setup-teardown/20180907-154819
config: i386-randconfig-x006-201835 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-1) 7.3.0
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
All warnings (new
On 2018年09月07日 00:46, Michael S. Tsirkin wrote:
On Thu, Sep 06, 2018 at 12:05:26PM +0800, Jason Wang wrote:
This patch implements XDP batching for vhost_net. The idea is first to
try to do userspace copy and build XDP buff directly in vhost. Instead
of submitting the packet immediately,
On Fri, Sep 07, 2018 at 12:49:17PM +0200, Borislav Petkov wrote:
> From: Borislav Petkov
>
> When CONFIG_PARAVIRT_SPINLOCKS=n, it fires
>
> arch/x86/kernel/paravirt_patch_64.c: In function ‘native_patch’:
> arch/x86/kernel/paravirt_patch_64.c:89:1: warning: label ‘patch_site’
> defined but
From: Borislav Petkov
When CONFIG_PARAVIRT_SPINLOCKS=n, it fires
arch/x86/kernel/paravirt_patch_64.c: In function ‘native_patch’:
arch/x86/kernel/paravirt_patch_64.c:89:1: warning: label ‘patch_site’ defined
but not used [-Wunused-label]
patch_site:
but that label can simply be removed
On Fri, Sep 07, 2018 at 12:51:12PM +0200, Borislav Petkov wrote:
> Whoops, no, it is still being used. Lemme see if I can remove all the
> labels in that function.
Ok, I think I've gotten rid of them all, in both 32- and 64-bit
versions. It boots here and a bunch of all*config builds pass.
---
On 07/09/18 22:10, Borislav Petkov wrote:
> On Fri, Sep 07, 2018 at 12:51:12PM +0200, Borislav Petkov wrote:
>> Whoops, no, it is still being used. Lemme see if I can remove all the
>> labels in that function.
>
> Ok, I think I've gotten rid of them all, in both 32- and 64-bit
> versions. It
On Friday, September 7, 2018 8:30 PM, Dr. David Alan Gilbert wrote:
> OK, that's much better.
> The ~50% reducton with a 8G VM and a real workload is great, and it does
> what you expect when you put a lot more RAM in and see the 84% reduction
> on a guest with 128G RAM - 54s vs ~9s is a big win!
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