Re: [kvm-devel] virtio_net backport performance

2008-01-04 Thread Rusty Russell
On Saturday 05 January 2008 09:24:40 Anthony Liguori wrote: > @@ -215,17 +231,40 @@ > struct virtnet_info *vi = rvq->vdev->priv; > /* Suppress further interrupts. */ > rvq->vq_ops->disable_cb(rvq); > +#ifdef COMPAT_napi > +   vi->rvq->vq_ops->enable_cb(vi->rvq); > + 

[kvm-devel] virtio_net backport performance

2008-01-04 Thread Anthony Liguori
Hey Rusty et al, I've got automatic backports of the virtio modules[1] working back to 2.6.18. Everything seems okay except that for any kernel with the older NAPI api, performance is extremely bad. I get about 1gbit on TX with 2.6.24 but I get somewhere around 20mbit on 2.6.22. I had to r

Re: [kvm-devel] acpi sci polarity

2008-01-04 Thread Guido Guenther
Hi Avi, On Thu, Jan 03, 2008 at 11:17:50PM +0200, Avi Kivity wrote: > While pci interrupts are documented as active high, the documentation for > the piix4 pic elcr registers suggests piix4 level-triggered interrupts are > active high. So there is some inconsistency somewhere involving qemu > i

Re: [kvm-devel] KVM Test result, kernel e770613.., userspace 7c75d86b..

2008-01-04 Thread Zhao, Yunfeng
>> One update for those issues about failures of booting SMP Windows, refer >> to 6th and 7th issues. >> We found that Windows SMP guests will fail to boot if using qcow images. >> >> In our testing we are using qcow images to boot most guests. We tried to >> switch to common disk images and then

Re: [kvm-devel] [PATCH] MMU: fix cmpxchg8b emulation on i386 to use the right address

2008-01-04 Thread Marcelo Tosatti
On Fri, Jan 04, 2008 at 01:42:04AM -0600, Carlo Marcelo Arenas Belon wrote: > On Fri, Jan 04, 2008 at 12:57:49AM -0600, Carlo Marcelo Arenas Belon wrote: > > change the function parameter to use vaddr instead of addr to avoid a > > variable name redefinition from 9a5ee611ca79bec98e9d97e93f11df8083b

Re: [kvm-devel] KVM Test result, kernel e770613.., userspace 7c75d86b..

2008-01-04 Thread Izik Eidus
Zhao, Yunfeng wrote: > Hi, all, > > This is today's KVM test result against kvm.git > e7706133a12f0172b1a5ce4467277abd598155b6 and kvm-userspace.git > 7c75d86ba5c761bb44ea80e6e22973fee66adb00. > > One update for those issues about failures of booting SMP Windows, refer > to 6th and 7th issues. >

[kvm-devel] KVM Test result, kernel e770613.., userspace 7c75d86b..

2008-01-04 Thread Zhao, Yunfeng
Hi, all, This is today's KVM test result against kvm.git e7706133a12f0172b1a5ce4467277abd598155b6 and kvm-userspace.git 7c75d86ba5c761bb44ea80e6e22973fee66adb00. One update for those issues about failures of booting SMP Windows, refer to 6th and 7th issues. We found that Windows SMP guests will