> >> So I think monotonic wallclock time actually makes the most sense here.
> >
> > This is asking for trouble... a config option to disable this would be
> > nice. But as I don't know which problem this patch originally addresses
> > it might be that this is needed anyway. So lets see why we nee
From: Max Krasnyansky <[EMAIL PROTECTED]>
Date: Sat, 12 Jul 2008 01:52:54 -0700
> This is on top of the latest and greatest :). Assuming virt folks are ok with
> the API this should go into 2.6.27.
Really? :-)
It doesn't apply cleanly to net-next-2.6, as I just tried to
stick this into my tree.
From: David Miller <[EMAIL PROTECTED]>
Date: Mon, 14 Jul 2008 22:16:02 -0700 (PDT)
> It doesn't apply cleanly to net-next-2.6, as I just tried to
> stick this into my tree.
Ignore this, I did something stupid.
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On Mon, Jul 14, 2008 at 10:41:38PM -0500, Rusty Russell wrote:
>
> + /* If we can receive ANY GSO packets, we must allocate large ones. */
> + if (virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO4)
> + || virtio_has_feature(vdev, VIRTIO_NET_F_GUEST_TSO6)
> + || virtio_has_fea
On Mon, Jul 14, 2008 at 10:40:49PM -0500, Rusty Russell wrote:
> From: Herbert Xu <[EMAIL PROTECTED]>
>
> This patch adds some basic ethtool operations to virtio_net so
> I could test SG without GSO (which was really useful because TSO
> turned out to be buggy :)
>
> Signed-off-by: Rusty Russell
If we hack the virtio_net driver to always allocate full-sized (64k+)
skbuffs, the driver slows down (lguest numbers):
Time to receive 1GB (small buffers): 10.85 seconds
Time to receive 1GB (64k+ buffers): 24.75 seconds
Of course, large buffers use up more space in the ring, so we increase
t
From: Herbert Xu <[EMAIL PROTECTED]>
Finally this patch lets virtio_net receive GSO packets in addition
to sending them. This can definitely be optimised for the non-GSO
case. For comparison the Xen approach stores one page in each skb
and uses subsequent skb's pages to construct an SG skb inste
From: Herbert Xu <[EMAIL PROTECTED]>
This patch adds some basic ethtool operations to virtio_net so
I could test SG without GSO (which was really useful because TSO
turned out to be buggy :)
Signed-off-by: Rusty Russell <[EMAIL PROTECTED]> (remove MTU setting)
---
drivers/net/virtio_net.c | 18
(I know you already have this, but included for completeness)
From: Mark McLoughlin <[EMAIL PROTECTED]>
We can handle receiving partial csums, so set the
appropriate feature bit.
Signed-off-by: Mark McLoughlin <[EMAIL PROTECTED]>
Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>
---
drivers/net/
Hidetoshi Seto wrote:
> Heiko Carstens wrote:
>> Hmm.. probably a stupid question: but what could happen that a real cpu
>> (not virtual) becomes unresponsive so that it won't schedule a MAX_RT_PRIO-1
>> prioritized task for 5 seconds?
>
> The original problem (once I heard and easily reproduced
Heiko Carstens wrote:
> On Mon, Jul 14, 2008 at 11:56:18AM -0700, Jeremy Fitzhardinge wrote:
>> Rusty Russell wrote:
>>> On Monday 14 July 2008 21:51:25 Christian Borntraeger wrote:
Am Montag, 14. Juli 2008 schrieb Hidetoshi Seto:
> + /* Wait all others come to life */
> +
On Tuesday 15 July 2008 07:20:26 Heiko Carstens wrote:
> On Mon, Jul 14, 2008 at 11:56:18AM -0700, Jeremy Fitzhardinge wrote:
> > Rusty Russell wrote:
> > > On Monday 14 July 2008 21:51:25 Christian Borntraeger wrote:
> > >> Am Montag, 14. Juli 2008 schrieb Hidetoshi Seto:
> > >>> + /* Wait a
On Mon, Jul 14, 2008 at 11:56:18AM -0700, Jeremy Fitzhardinge wrote:
> Rusty Russell wrote:
> > On Monday 14 July 2008 21:51:25 Christian Borntraeger wrote:
> >> Am Montag, 14. Juli 2008 schrieb Hidetoshi Seto:
> >>
> >>> + /* Wait all others come to life */
> >>> + while (cpus_weight(prepared
Rusty Russell wrote:
> On Monday 14 July 2008 21:51:25 Christian Borntraeger wrote:
>
>> Am Montag, 14. Juli 2008 schrieb Hidetoshi Seto:
>>
>>> + /* Wait all others come to life */
>>> + while (cpus_weight(prepared_cpus) != num_online_cpus() - 1) {
>>> + if (time_is_before_ji
On Monday 14 July 2008 21:51:25 Christian Borntraeger wrote:
> Am Montag, 14. Juli 2008 schrieb Hidetoshi Seto:
> > + /* Wait all others come to life */
> > + while (cpus_weight(prepared_cpus) != num_online_cpus() - 1) {
> > + if (time_is_before_jiffies(limit))
> > +
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