On 06.09.12 13:17:19, David Ahern wrote:
> On 9/6/12 1:02 PM, Robert Richter wrote:
> > just found your patch...
I tested the patch and it runs ok with my kernel patch that checks
syscall attributes for ibs. perf tools falls back and clears
exclude_guest/_host bits in attr. It also should work if
On 9/6/12 1:02 PM, Robert Richter wrote:
David,
just found your patch...
On 20.07.12 17:25:53, David Ahern wrote:
PEBS cannot be used with guest mode. If user adds :p modifier set
exclude_guest as well.
@@ -653,6 +653,9 @@ int parse_events_modifier(struct list_head *list, char *str)
David,
just found your patch...
On 20.07.12 17:25:53, David Ahern wrote:
> PEBS cannot be used with guest mode. If user adds :p modifier set
> exclude_guest as well.
> @@ -653,6 +653,9 @@ int parse_events_modifier(struct list_head *list, char
> *str)
> eH = 0;
>
On 9/6/12 11:44 AM, Robert Richter wrote:
David,
On 06.09.12 00:07:52, Peter Zijlstra wrote:
On Wed, 2012-09-05 at 09:43 -0600, David Ahern wrote:
We need to require exclude_guest when using precise attribute with perf
else all running VMs on Intel-based servers will crash. I do not have an
AM
David,
On 06.09.12 00:07:52, Peter Zijlstra wrote:
> On Wed, 2012-09-05 at 09:43 -0600, David Ahern wrote:
> > We need to require exclude_guest when using precise attribute with perf
> > else all running VMs on Intel-based servers will crash. I do not have an
> > AMD based server to even attempt
On Wed, 2012-09-05 at 09:43 -0600, David Ahern wrote:
>
> We need to require exclude_guest when using precise attribute with perf
> else all running VMs on Intel-based servers will crash. I do not have an
> AMD based server to even attempt the preferred solution.
I've recently gotten a machine
In an attempt to jump start this thread...
On 8/3/12 7:51 AM, Robert Richter wrote:
On 26.07.12 10:08:29, Peter Zijlstra wrote:
On Wed, 2012-07-25 at 23:16 -0600, David Ahern wrote:
Peter's patch (see https://lkml.org/lkml/2012/7/9/298) changes kernel
side to require the use of exclude_guest
On 8/3/12 7:51 AM, Robert Richter wrote:
On 26.07.12 10:08:29, Peter Zijlstra wrote:
On Wed, 2012-07-25 at 23:16 -0600, David Ahern wrote:
Peter's patch (see https://lkml.org/lkml/2012/7/9/298) changes kernel
side to require the use of exclude_guest if the precise modifier is
used, returning -
On 26.07.12 10:08:29, Peter Zijlstra wrote:
> On Wed, 2012-07-25 at 23:16 -0600, David Ahern wrote:
>
> > Peter's patch (see https://lkml.org/lkml/2012/7/9/298) changes kernel
> > side to require the use of exclude_guest if the precise modifier is
> > used, returning -EOPNOTSUPP if exclude_guest
Hi Peter:
On 7/25/12 11:50 PM, Gleb Natapov wrote:
On Wed, Jul 25, 2012 at 10:35:46PM +0200, Peter Zijlstra wrote:
On Tue, 2012-07-24 at 18:15 +0200, Robert Richter wrote:
thanks for this hint.
On AMD cpus precise_ip maps to IBS, which does not support hardware
options as perfctrs do. Thus, f
On 26.07.12 10:07:37, Peter Zijlstra wrote:
> On Thu, 2012-07-26 at 08:50 +0300, Gleb Natapov wrote:
> > The commit is 144d31e6, but it introduces hook that is used on VMX only.
> > SVM does not need it to implement guest/host only counters since it
> > has HW support for that in the PMU.
>
> Righ
On Thu, Jul 26, 2012 at 10:07:37AM +0200, Peter Zijlstra wrote:
> On Thu, 2012-07-26 at 08:50 +0300, Gleb Natapov wrote:
> > On Wed, Jul 25, 2012 at 10:35:46PM +0200, Peter Zijlstra wrote:
> > > On Tue, 2012-07-24 at 18:15 +0200, Robert Richter wrote:
> > > > David,
> > > >
> > > > On 24.07.12 08:
On Wed, 2012-07-25 at 23:16 -0600, David Ahern wrote:
> Peter's patch (see https://lkml.org/lkml/2012/7/9/298) changes kernel
> side to require the use of exclude_guest if the precise modifier is
> used, returning -EOPNOTSUPP if exclude_guest is not set. This patch goes
> after the user experie
On Thu, 2012-07-26 at 08:50 +0300, Gleb Natapov wrote:
> On Wed, Jul 25, 2012 at 10:35:46PM +0200, Peter Zijlstra wrote:
> > On Tue, 2012-07-24 at 18:15 +0200, Robert Richter wrote:
> > > David,
> > >
> > > On 24.07.12 08:20:19, David Ahern wrote:
> > > > On 7/23/12 12:13 PM, Arnaldo Carvalho de M
On Wed, Jul 25, 2012 at 10:35:46PM +0200, Peter Zijlstra wrote:
> On Tue, 2012-07-24 at 18:15 +0200, Robert Richter wrote:
> > David,
> >
> > On 24.07.12 08:20:19, David Ahern wrote:
> > > On 7/23/12 12:13 PM, Arnaldo Carvalho de Melo wrote:
> > > > Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David
On 7/24/12 12:03 PM, Arnaldo Carvalho de Melo wrote:
Em Tue, Jul 24, 2012 at 11:28:48AM -0600, David Ahern escreveu:
On 7/24/12 10:15 AM, Robert Richter wrote:
On AMD cpus precise_ip maps to IBS, which does not support hardware
options as perfctrs do. Thus, following attr flags are not supporte
On Tue, 2012-07-24 at 18:15 +0200, Robert Richter wrote:
> David,
>
> On 24.07.12 08:20:19, David Ahern wrote:
> > On 7/23/12 12:13 PM, Arnaldo Carvalho de Melo wrote:
> > > Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu:
> > >> PEBS cannot be used with guest mode. If user adds :p
Em Tue, Jul 24, 2012 at 11:28:48AM -0600, David Ahern escreveu:
> On 7/24/12 10:15 AM, Robert Richter wrote:
> >On AMD cpus precise_ip maps to IBS, which does not support hardware
> >options as perfctrs do. Thus, following attr flags are not supported:
> > exclude_user, exclude_kernel, exclude_ho
On 7/24/12 10:15 AM, Robert Richter wrote:
David,
On 24.07.12 08:20:19, David Ahern wrote:
On 7/23/12 12:13 PM, Arnaldo Carvalho de Melo wrote:
Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu:
PEBS cannot be used with guest mode. If user adds :p modifier set
exclude_guest as we
David,
On 24.07.12 08:20:19, David Ahern wrote:
> On 7/23/12 12:13 PM, Arnaldo Carvalho de Melo wrote:
> > Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu:
> >> PEBS cannot be used with guest mode. If user adds :p modifier set
> >> exclude_guest as well.
> >
> > Is this something In
On 7/23/12 12:13 PM, Arnaldo Carvalho de Melo wrote:
Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu:
PEBS cannot be used with guest mode. If user adds :p modifier set
exclude_guest as well.
Is this something Intel specific? Or can someone think of an arch where
this limitation
Em Fri, Jul 20, 2012 at 05:25:53PM -0600, David Ahern escreveu:
> PEBS cannot be used with guest mode. If user adds :p modifier set
> exclude_guest as well.
Is this something Intel specific? Or can someone think of an arch where
this limitation wouldn't exist?
>
> Signed-off-by: David Ahern
>
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