On Thu, 15 Mar 2012 15:46:31 +0200
Avi Kivity a...@redhat.com wrote:
You can look at what's happening by doing
perf record -a -f
perf report
using the TUI, select 'annotate rmap_get_next'
You should see where the time is spent.
Since the default sampling rate was not enough to
Il 19/03/2012 21:06, Sever Apostu ha scritto:
Any chance anyone has any feedback about KVM installed inside a Xen guest ?
It's really a Xen question more than a KVM question.
Thank you for the reply, Paolo!
Most likely both will suffer and I am prepared to live with that, but
is it
Hi
Please send in any agenda items you are interested in covering.
Cheers,
Juan.
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hello,
Le Mon, Mar 19, 2012 at 12:51:34PM +0200, Gleb Natapov ecrivait :
Can you run the same test on Linux guest and on Windows vm with 1 cpu?
I see a lot of IPIs between vcpus.
I run the same slowly fonction (to remember the guest is
Windows2008R2 64bits). The report
At 03/19/2012 03:33 PM, Wen Congyang Wrote:
At 03/08/2012 03:57 PM, Wen Congyang Wrote:
We can know the guest is paniced when the guest runs on xen.
But we do not have such feature on kvm.
Another purpose of this feature is: management app(for example:
libvirt) can do auto dump when the
On Tue, Mar 20, 2012 at 10:32:20AM +0100, David Cure wrote:
hello,
Le Mon, Mar 19, 2012 at 12:51:34PM +0200, Gleb Natapov ecrivait :
Can you run the same test on Linux guest and on Windows vm with 1 cpu?
I see a lot of IPIs between vcpus.
I run the same slowly
On 03/19/2012 04:11 PM, Amos Kong wrote:
Change inet_connect(const char *str, int socktype) to
inet_connect(const char *str, bool block, int *sock_err),
socktype is unused, block is used to assign if set socket
to block/nonblock, sock_err is used to restore socket error.
It is more common to
So you really mean to run Qemu inside Oracle VM? For KVM, the module
needs to run on host kernel.
If you are in the VM kernel already, KVM does not provide you with
hardware acceleration.
On Tue, Mar 20, 2012 at 4:34 AM, Paolo Bonzini pbonz...@redhat.com wrote:
Il 19/03/2012 21:06, Sever
Le Tue, Mar 20, 2012 at 11:45:41AM +0200, Gleb Natapov ecrivait :
This is without -no-hpet :) Also I hope you are not measuring time while
ha yes, sorry for the mistake.
tracing since it supposed to be slower. Can you please try to run with
-cpu host,-hypervisor and -no-hpet
---
arch/x86/kvm/pmu.c |2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
index 7aad544..9395230 100644
--- a/arch/x86/kvm/pmu.c
+++ b/arch/x86/kvm/pmu.c
@@ -365,7 +365,7 @@ int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, u32 index, u64
On 03/20/2012 08:37 AM, Takuya Yoshikawa wrote:
On Thu, 15 Mar 2012 15:46:31 +0200
Avi Kivity a...@redhat.com wrote:
You can look at what's happening by doing
perf record -a -f
perf report
using the TUI, select 'annotate rmap_get_next'
You should see where the time is
Il 19/03/2012 07:13, Zhang, Yang Z ha scritto:
Current RTC emulation uses periodic timer(2 timers per second) to
update RTC clock. And it will stop CPU staying at deep C-state for
long period. Our experience shows the Pkg C6 residency reduced 6%
when running 64 idle guest. The following patch
On Tue, Mar 20, 2012 at 12:18:39PM +0100, David Cure wrote:
Le Tue, Mar 20, 2012 at 11:45:41AM +0200, Gleb Natapov ecrivait :
This is without -no-hpet :) Also I hope you are not measuring time while
ha yes, sorry for the mistake.
tracing since it supposed to be slower. Can
On Tue, Mar 20, 2012 at 12:53:57PM +, Liu, Jinsong wrote:
Rik van Riel wrote:
On 03/09/2012 01:27 PM, Liu, Jinsong wrote:
As for 'tsc deadline' feature exposing, my patch (as attached) just
obey qemu general cpuid exposing method, and also satisfied your
target I think.
One
Juan Quintela quint...@redhat.com wrote:
Hi
Please send in any agenda items you are interested in covering.
As there are no topics, call is cancelled.
Happy hacking, Juan.
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On Mon, 19 Mar 2012, Zhang, Yang Z wrote:
Change DM(date mode) and 24/12 control bit don't affect the internal
registers. It only indicates what format is using for those registers. So we
don't need to update time format when it is modified.
That might be true, but if the user changes
Linus, please pull from
ra.kernel.org:/pub/scm/virt/kvm/kvm.git kvm-updates/3.4
(ssh URL as git.kernel.org is down at the moment) to receive the KVM
updates for the 3.4 merge window. Changes include timekeeping
improvements, support for assigning host PCI devices that share
interrupt lines,
On Mon, 19 Mar 2012, Zhang, Yang Z wrote:
There has no need to use two periodic timer to update RTC time. In this
patch, we only update it when guest reading it.
So the basic idea here is that we don't need to two periodic timers
because we are going to calculate the RTC guest time from QEMU's
On Mon, 19 Mar 2012, Zhang, Yang Z wrote:
The UIP(update in progress) is set when RTC is updating. And the update cycle
begins 244us later after UIP is set. And it is cleared when update end.
this patch seems good to me
Signed-off-by: Yang Zhang yang.z.zh...@intel.com
---
On 03/01/2012 12:30 PM, Takuya Yoshikawa wrote:
This patch series is the result of the integration of my dirty logging
optimization work, including preparation for the new GET_DIRTY_LOG API,
and the attempt to get rid of controversial synchronize_srcu_expedited().
1 - KVM: MMU: Split the main
On 03/15/2012 02:10 PM, Alexander Graf wrote:
Hi Avi,
This is my current patch queue for ppc. Please pull.
Pulled, thanks.
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On 03/19/2012 08:57 PM, Michael S. Tsirkin wrote:
Should be done via an extra BAR (with the same layout, perhaps extended)
so compatibility is preserved.
No, that would need guest changes to be of use. The point of this hack
is to make things work for Linux guests where PIO does not
The following changes since commit 5ffca28a4ac7abb8a254fafe6bd03b2f83667df7:
Merge git://git.kernel.org/pub/scm/linux/kernel/git/aia21/ntfs (2012-02-27
07:59:33 -0800)
are available in the git repository at:
ra.kernel.org:/pub/scm/linux/kernel/git/mst/vhost.git for_davem
(ssh url as
On Tue, Mar 20, 2012 at 05:59:16PM +0800, Wen Congyang wrote:
At 03/19/2012 03:33 PM, Wen Congyang Wrote:
At 03/08/2012 03:57 PM, Wen Congyang Wrote:
We can know the guest is paniced when the guest runs on xen.
But we do not have such feature on kvm.
Another purpose of this feature is:
@@ -682,10 +733,18 @@ void virtio_init_pci(VirtIOPCIProxy *proxy,
VirtIODevice *vdev) if (size (size-1))
size = 1 qemu_fls(size);
+proxy-bar0_mask = size - 1;
You'll get better performance if you use page-sized mappings. You're already
creating a mapping bigger than the
I tried using the kernel 3.2.11 and i had different results:
-one time it worked correctly without errors
-one time i had the hrtimer message but the network seemed continue working
-one time the network stopped working (during udp test)
If you have time, try using these scripts:
Il 20/03/2012 18:39, Stefano Stabellini ha scritto:
This code is new: does it mean we were not handling divider reset
correctly before?
Also if we are trying to handle the DV registers, shouldn't we emulated
the other RTC frequencies as well? If so, we need a scale factor, in
addition to an
On Mon, 19 Mar 2012, Zhang, Yang Z wrote:
Use a timer to emulate update cycle. When update cycle ended and UIE is
setting, then raise an interrupt. The timer runs only when UF or AF is
cleared.
The idea is that if the user requests the update-ended interrupt (UIE)
we setup a timer to inject
+/* handle update-ended timer */
+static void check_update_timer(RTCState *s)
+{
+uint64_t next_update_time, expire_time;
+uint64_t guest_usec;
+qemu_del_timer(s-update_timer);
+qemu_del_timer(s-update_timer2);
+
+if (!((s-cmos_data[RTC_REG_C] (REG_C_UF | REG_C_AF))
On Wed, Mar 7, 2012 at 8:19 AM, Avi Kivity a...@redhat.com wrote:
On 03/07/2012 01:00 PM, Gleb Natapov wrote:
KVM internal error. Suberror: 1
emulation failure
EAX=8004003b EBX=38d54633 ECX=c0460a7e EDX=8005003b
ESI=e49329a8 EDI=f7c98d60 EBP=0286 ESP=f7fecf68
EIP=f91d1778
At 03/20/2012 11:45 PM, Gleb Natapov Wrote:
On Tue, Mar 20, 2012 at 05:59:16PM +0800, Wen Congyang wrote:
At 03/19/2012 03:33 PM, Wen Congyang Wrote:
At 03/08/2012 03:57 PM, Wen Congyang Wrote:
We can know the guest is paniced when the guest runs on xen.
But we do not have such feature on
restore_sched_clock_state methods use percpu data, therefore they
must run after %gs is initialized, but before mtrr_bp_restore (due to
lockstat using sched_clock).
Move it to the correct place.
Signed-off-by: Marcelo Tosatti mtosa...@redhat.com
diff --git a/arch/x86/power/cpu.c
-Original Message-
From: Stefano Stabellini [mailto:stefano.stabell...@eu.citrix.com]
Sent: Tuesday, March 20, 2012 10:05 PM
To: Zhang, Yang Z
Cc: qemu-de...@nongnu.org; Paolo Bonzini; aligu...@us.ibm.com;
kvm@vger.kernel.org
Subject: Re: [Qemu-devel] [PATCH v4 1/7] RTC: Remove the
On 03/15/2012 02:10 PM, Alexander Graf wrote:
Hi Avi,
This is my current patch queue for ppc. Please pull.
Pulled, thanks.
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