On 01/28, Srikar Dronamraju wrote:
>
> * Oleg Nesterov [2013-01-25 17:17:28]:
>
> > This is what I am going to (try to) do, but I am not sure if this makes
> > sense...
> >
> > For the start, can't we teach 'uprobe_events' file to accept, say,
> >
> > 'p file:0x1234 pid=1 other-opts'
>
>
> I
* Oleg Nesterov [2013-01-25 17:17:28]:
> On 01/25, Ingo Molnar wrote:
> >
> > * Srikar Dronamraju wrote:
> >
> > > The other alternative is to extend the current abi and pass
> > > the prefilter option. Should we extend the abi for userspace
> > > tracing is obviously debatable.
> >
> > That's
* Oleg Nesterov o...@redhat.com [2013-01-25 17:17:28]:
On 01/25, Ingo Molnar wrote:
* Srikar Dronamraju sri...@linux.vnet.ibm.com wrote:
The other alternative is to extend the current abi and pass
the prefilter option. Should we extend the abi for userspace
tracing is obviously
On 01/28, Srikar Dronamraju wrote:
* Oleg Nesterov o...@redhat.com [2013-01-25 17:17:28]:
This is what I am going to (try to) do, but I am not sure if this makes
sense...
For the start, can't we teach 'uprobe_events' file to accept, say,
'p file:0x1234 pid=1 other-opts'
I
On 01/25, Ingo Molnar wrote:
>
> * Oleg Nesterov wrote:
>
> > On 01/25, Ingo Molnar wrote:
> > >
> > > * Srikar Dronamraju wrote:
> > >
> > > > The other alternative is to extend the current abi and pass
> > > > the prefilter option. Should we extend the abi for userspace
> > > > tracing is
* Oleg Nesterov wrote:
> On 01/25, Ingo Molnar wrote:
> >
> > * Srikar Dronamraju wrote:
> >
> > > The other alternative is to extend the current abi and pass
> > > the prefilter option. Should we extend the abi for userspace
> > > tracing is obviously debatable.
> >
> > That's the obvious
On 01/25, Ingo Molnar wrote:
>
> * Srikar Dronamraju wrote:
>
> > The other alternative is to extend the current abi and pass
> > the prefilter option. Should we extend the abi for userspace
> > tracing is obviously debatable.
>
> That's the obvious path to go - why add something to the kernel
>
(2013/01/25 15:46), Srikar Dronamraju wrote:
> The other alternative is to extend the current abi and pass the
> prefilter option. Should we extend the abi for userspace tracing is
> obviously debatable.
Hmm, afaik, ftrace has set_ftrace_pid and perf record
also has --pid option. I think you can
(2013/01/25 15:46), Srikar Dronamraju wrote:
The other alternative is to extend the current abi and pass the
prefilter option. Should we extend the abi for userspace tracing is
obviously debatable.
Hmm, afaik, ftrace has set_ftrace_pid and perf record
also has --pid option. I think you can
On 01/25, Ingo Molnar wrote:
* Srikar Dronamraju sri...@linux.vnet.ibm.com wrote:
The other alternative is to extend the current abi and pass
the prefilter option. Should we extend the abi for userspace
tracing is obviously debatable.
That's the obvious path to go - why add something to
* Oleg Nesterov o...@redhat.com wrote:
On 01/25, Ingo Molnar wrote:
* Srikar Dronamraju sri...@linux.vnet.ibm.com wrote:
The other alternative is to extend the current abi and pass
the prefilter option. Should we extend the abi for userspace
tracing is obviously debatable.
On 01/25, Ingo Molnar wrote:
* Oleg Nesterov o...@redhat.com wrote:
On 01/25, Ingo Molnar wrote:
* Srikar Dronamraju sri...@linux.vnet.ibm.com wrote:
The other alternative is to extend the current abi and pass
the prefilter option. Should we extend the abi for userspace
* Srikar Dronamraju wrote:
> The other alternative is to extend the current abi and pass
> the prefilter option. Should we extend the abi for userspace
> tracing is obviously debatable.
That's the obvious path to go - why add something to the kernel
if user-space cannot make use of it?
* Oleg Nesterov [2013-01-24 18:06:12]:
> On 01/24, Ingo Molnar wrote:
> >
> > * Oleg Nesterov wrote:
> >
> > > Unfortunately, currently there is no in-kernel user of
> > > pre-filtering.
> > >
> > > I'll try to implement the pid-base filtering at least for
> > > tracing/uprobe_events, but this
On 01/24, Josh Stone wrote:
>
> On 01/24/2013 07:40 AM, Oleg Nesterov wrote:
> > I'll try to implement the pid-base filtering at least for
> > tracing/uprobe_events, but this needs a time. Not only I am not familiar
> > with this code, I am not sure how this interface should actually look.
> > And
On 01/24, Ingo Molnar wrote:
>
> * Oleg Nesterov wrote:
>
> > Unfortunately, currently there is no in-kernel user of
> > pre-filtering.
> >
> > I'll try to implement the pid-base filtering at least for
> > tracing/uprobe_events, but this needs a time. Not only I am
> > not familiar with this
On 01/24/2013 07:40 AM, Oleg Nesterov wrote:
> I'll try to implement the pid-base filtering at least for
> tracing/uprobe_events, but this needs a time. Not only I am not familiar
> with this code, I am not sure how this interface should actually look.
> And I agree, perf should be able to use it
* Oleg Nesterov wrote:
> On 01/24, Ingo Molnar wrote:
> >
> > * Oleg Nesterov wrote:
> >
> > > Ingo, please pull from
> > >
> > > git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
> > >
> > > Mostly pre-filtering. This needs more work and perhaps more functionality.
> > >
On 01/24, Ingo Molnar wrote:
>
> * Oleg Nesterov wrote:
>
> > Ingo, please pull from
> >
> > git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
> >
> > Mostly pre-filtering. This needs more work and perhaps more functionality.
> > In particular, perhaps dup_mmap() should
Hello Ingo,
On Thu, Jan 24, 2013 at 11:17 PM, Ingo Molnar wrote:
>
> * Oleg Nesterov wrote:
>
>> Ingo, please pull from
>>
>> git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
>>
>> Mostly pre-filtering. This needs more work and perhaps more functionality.
>> In particular,
* Anton Arapov wrote:
> Hello Ingo,
>
> On Thu, Jan 24, 2013 at 11:17 PM, Ingo Molnar wrote:
> >
> > * Oleg Nesterov wrote:
> >
> >> Ingo, please pull from
> >>
> >> git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
> >>
> >> Mostly pre-filtering. This needs more work
* Oleg Nesterov wrote:
> Ingo, please pull from
>
> git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
>
> Mostly pre-filtering. This needs more work and perhaps more functionality.
> In particular, perhaps dup_mmap() should remove the unwanted breakpoints.
> And we can
* Oleg Nesterov o...@redhat.com wrote:
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more functionality.
In particular, perhaps dup_mmap() should remove the unwanted breakpoints.
And
* Anton Arapov an...@redhat.com wrote:
Hello Ingo,
On Thu, Jan 24, 2013 at 11:17 PM, Ingo Molnar mi...@kernel.org wrote:
* Oleg Nesterov o...@redhat.com wrote:
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering.
Hello Ingo,
On Thu, Jan 24, 2013 at 11:17 PM, Ingo Molnar mi...@kernel.org wrote:
* Oleg Nesterov o...@redhat.com wrote:
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more functionality.
On 01/24, Ingo Molnar wrote:
* Oleg Nesterov o...@redhat.com wrote:
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more functionality.
In particular, perhaps dup_mmap() should
* Oleg Nesterov o...@redhat.com wrote:
On 01/24, Ingo Molnar wrote:
* Oleg Nesterov o...@redhat.com wrote:
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more
On 01/24/2013 07:40 AM, Oleg Nesterov wrote:
I'll try to implement the pid-base filtering at least for
tracing/uprobe_events, but this needs a time. Not only I am not familiar
with this code, I am not sure how this interface should actually look.
And I agree, perf should be able to use it
On 01/24, Ingo Molnar wrote:
* Oleg Nesterov o...@redhat.com wrote:
Unfortunately, currently there is no in-kernel user of
pre-filtering.
I'll try to implement the pid-base filtering at least for
tracing/uprobe_events, but this needs a time. Not only I am
not familiar with this
On 01/24, Josh Stone wrote:
On 01/24/2013 07:40 AM, Oleg Nesterov wrote:
I'll try to implement the pid-base filtering at least for
tracing/uprobe_events, but this needs a time. Not only I am not familiar
with this code, I am not sure how this interface should actually look.
And I agree,
* Oleg Nesterov o...@redhat.com [2013-01-24 18:06:12]:
On 01/24, Ingo Molnar wrote:
* Oleg Nesterov o...@redhat.com wrote:
Unfortunately, currently there is no in-kernel user of
pre-filtering.
I'll try to implement the pid-base filtering at least for
tracing/uprobe_events,
* Srikar Dronamraju sri...@linux.vnet.ibm.com wrote:
The other alternative is to extend the current abi and pass
the prefilter option. Should we extend the abi for userspace
tracing is obviously debatable.
That's the obvious path to go - why add something to the kernel
if user-space
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more functionality.
In particular, perhaps dup_mmap() should remove the unwanted breakpoints.
And we can add more ->filter() hooks to, say, speedup
Ingo, please pull from
git://git.kernel.org/pub/scm/linux/kernel/git/oleg/misc uprobes/core
Mostly pre-filtering. This needs more work and perhaps more functionality.
In particular, perhaps dup_mmap() should remove the unwanted breakpoints.
And we can add more -filter() hooks to, say, speedup
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