Jason Wang writes:
> Below should be useful for some experiments Jason is doing.
> I thought I'd send it out for early review/feedback.
>
> event idx feature allows us to defer interrupts until
> a specific # of descriptors were used.
> Sometimes it might be useful to get an interrupt after
> a sp
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
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
>> 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 w
On Tue, Oct 14, 2014 at 02:53:27PM -0400, David Miller wrote:
> From: Jason Wang
> 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
On Tue, Oct 14, 2014 at 02:53:27PM -0400, David Miller wrote:
> From: Jason Wang
> 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
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
Hi Jan,
I still need assistance on my problem. Please have a look at the trace
files and send me some hints to look for in the next step.
Thanks.
Best regards,
Erik
Erik Rull wrote:
Hi all,
I'm still stuck at the same point - I would like to proceed my work but I
need assistance by gett
From: Jason Wang
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 some
> protocols suc
On Oct 14, 2014 3:46 AM, "Bandan Das" wrote:
>
> Andy Lutomirski writes:
>
> > I don't know what's going on here, but a nested VMX boot using -cpu
> > host on SNB on L0 and L1 fails with the OOPS below. I kind of suspect
> > that there's both a KVM bug and an APIC driver bug here.
>
> What kerne
On 14 October 2014 02:47, Marc Zyngier wrote:
> On Sun, Sep 28 2014 at 03:04:26 PM, Christoffer Dall
> wrote:
>> The EIRSR and ELRSR registers are 32-bit registers on GICv2, and we
>> store these as an array of two such registers on the vgic vcpu struct.
>> However, we access them as a single 64
Andy Lutomirski writes:
> I don't know what's going on here, but a nested VMX boot using -cpu
> host on SNB on L0 and L1 fails with the OOPS below. I kind of suspect
> that there's both a KVM bug and an APIC driver bug here.
What kernel version is this ? What are you running for L1 and L2 ?
>
On Sun, Sep 28 2014 at 03:04:26 PM, Christoffer Dall
wrote:
> The EIRSR and ELRSR registers are 32-bit registers on GICv2, and we
> store these as an array of two such registers on the vgic vcpu struct.
> However, we access them as a single 64-bit value or as a bitmap pointer
> in the generic vgi
On Tue, Oct 14, 2014 at 11:01:12AM +1030, Rusty Russell wrote:
> "Michael S. Tsirkin" 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 inte
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