Re: [PATCH RFC V6 0/11] Paravirtualized ticketlocks

2012-03-31 Thread Ingo Molnar
* Andi Kleen a...@firstfloor.org wrote: Care to back that up with numbers and proper trace evidence instead of handwaving? E.g. my plumbers presentations on lock and mm scalability from last year has some graphs that show this very clearly, plus some additional data on the mutexes.

Re: [PATCH] kvm: deassign irqs in reset path

2012-03-31 Thread Jan Kiszka
On 2012-03-30 21:18, Jason Baron wrote: diff --git a/hw/device-assignment.c b/hw/device-assignment.c index 89823f1..31aed17 100644 --- a/hw/device-assignment.c +++ b/hw/device-assignment.c @@ -1609,10 +1609,32 @@ static void reset_assigned_device(DeviceState *dev) { PCIDevice *pci_dev

Re: [PATCH] virtio_blk: Drop unused request tracking list

2012-03-31 Thread Asias He
Hi, Stefan On Fri, Mar 30, 2012 at 6:14 PM, Stefan Hajnoczi stefa...@gmail.com wrote: On Fri, Mar 30, 2012 at 4:24 AM, Asias He as...@redhat.com wrote: Benchmark shows small performance improvement on fusion io device. Before:  seq-read : io=1,024MB, bw=19,982KB/s, iops=39,964, runt=

Re: [PATCH 11/13] KVM: MMU: fast path of handling guest page fault

2012-03-31 Thread Xiao Guangrong
On 03/29/2012 05:27 PM, Xiao Guangrong wrote: +static bool +FNAME(fast_pf_fetch_indirect_spte)(struct kvm_vcpu *vcpu, u64 *sptep, +u64 *new_spte, gfn_t gfn, +u32 expect_access, u64 spte) + +{ + struct kvm_mmu_page *sp =

Re: live migration problems.

2012-03-31 Thread Riccardo Veraldi
ifdown and ifup of the bridge is sufficient to enable the new delay config ? thank you Rick On 3/30/12 11:58 PM, Andrew Cathrow wrote: - Original Message - From: Riccardo Veraldiriccardo.vera...@cnaf.infn.it To: kvm@vger.kernel.org Sent: Friday, March 30, 2012 5:45:47 PM Subject:

Re: live migration problems.

2012-03-31 Thread Riccardo Veraldi
Thank you very much, this solved my problem, not even 1 ping is lost! I did not find this hint in the documentation though. Really thanks again Riccardo On 3/30/12 11:58 PM, Andrew Cathrow wrote: - Original Message - From: Riccardo Veraldiriccardo.vera...@cnaf.infn.it To:

Re: [PATCH 00/13] KVM: MMU: fast page fault

2012-03-31 Thread Xiao Guangrong
On 03/30/2012 05:18 PM, Xiao Guangrong wrote: On 03/29/2012 08:57 PM, Avi Kivity wrote: On 03/29/2012 01:40 PM, Xiao Guangrong wrote: * Implementation We can freely walk the page between walk_shadow_page_lockless_begin and walk_shadow_page_lockless_end, it can ensure all the shadow page is

High Level Proof of The Correctness of Dirty Page Tracking

2012-03-31 Thread Takuya Yoshikawa
This is what I wanted to read before starting GET_DIRTY_LOG work: about possible race between VCPU threads and GET_DIRTY_LOG thread. Although most things look trivial, there seem to be some interesting assumptions the correctness is based on including mmu lock usage. Takuya === About

No more win2k virtio-net drivers in latest Fedora

2012-03-31 Thread Reeted
Hello all, I have noticed that the virtio-net drivers for win2k exist in the 3 years' old: http://sourceforge.net/projects/kvm/files/kvm-driver-disc/20081229/NETKVM-20081229.iso/download but not in the newest:

[Bug 42779] KVM domain hangs after loading initrd with Xenomai kernel

2012-03-31 Thread bugzilla-daemon
https://bugzilla.kernel.org/show_bug.cgi?id=42779 --- Comment #21 from madenginee...@gmail.com 2012-03-31 20:10:38 --- Sorry for the delay, I've been really busy lately. Is this kernel reasonably safe to run on my main machine? I'm not worried about it crashing, but if it takes a filesystem

Re: High Level Proof of The Correctness of Dirty Page Tracking

2012-03-31 Thread Xiao Guangrong
On 03/31/2012 11:12 PM, Takuya Yoshikawa wrote: This is what I wanted to read before starting GET_DIRTY_LOG work: about possible race between VCPU threads and GET_DIRTY_LOG thread. Although most things look trivial, there seem to be some interesting assumptions the correctness is based on