On Fri, 6 Jul 2018 08:22:01 +0200
Claudio wrote:
> Hello all,
>
> I have been experimenting with the idea of leaving ftrace enabled, with sched
> events,
> on production systems.
>
> The main concern that I am having at the moment is about the impact on the
> system.
> Enabling the sched
On Fri, 6 Jul 2018 08:22:01 +0200
Claudio wrote:
> Hello all,
>
> I have been experimenting with the idea of leaving ftrace enabled, with sched
> events,
> on production systems.
>
> The main concern that I am having at the moment is about the impact on the
> system.
> Enabling the sched
On Mon, 9 Jul 2018 16:53:52 +0200
Claudio wrote:
>
> One additional data point, based on brute force again:
>
> I applied this change, in order to understand if it was the
>
> trace_event_raw_event_* (I suppose primarily trace_event_raw_event_switch)
>
> that contained the latency
On Mon, 9 Jul 2018 16:53:52 +0200
Claudio wrote:
>
> One additional data point, based on brute force again:
>
> I applied this change, in order to understand if it was the
>
> trace_event_raw_event_* (I suppose primarily trace_event_raw_event_switch)
>
> that contained the latency
On 07/09/2018 12:06 PM, Claudio wrote:
> Hello Steve,
>
> thank you for your response,
>
> On 07/06/2018 11:24 PM, Steven Rostedt wrote:
>> On Fri, 6 Jul 2018 08:22:01 +0200
>> Claudio wrote:
>>
>>> Hello all,
>>>
>>> I have been experimenting with the idea of leaving ftrace enabled, with
On 07/09/2018 12:06 PM, Claudio wrote:
> Hello Steve,
>
> thank you for your response,
>
> On 07/06/2018 11:24 PM, Steven Rostedt wrote:
>> On Fri, 6 Jul 2018 08:22:01 +0200
>> Claudio wrote:
>>
>>> Hello all,
>>>
>>> I have been experimenting with the idea of leaving ftrace enabled, with
Hello Steve,
thank you for your response,
On 07/06/2018 11:24 PM, Steven Rostedt wrote:
> On Fri, 6 Jul 2018 08:22:01 +0200
> Claudio wrote:
>
>> Hello all,
>>
>> I have been experimenting with the idea of leaving ftrace enabled, with
>> sched events,
>> on production systems.
>>
>> The main
Hello Steve,
thank you for your response,
On 07/06/2018 11:24 PM, Steven Rostedt wrote:
> On Fri, 6 Jul 2018 08:22:01 +0200
> Claudio wrote:
>
>> Hello all,
>>
>> I have been experimenting with the idea of leaving ftrace enabled, with
>> sched events,
>> on production systems.
>>
>> The main
On Fri, 6 Jul 2018 17:39:22 -0400
Steven Rostedt wrote:
> On Fri, 6 Jul 2018 17:24:28 -0400
> Steven Rostedt wrote:
>
> > I'll investigate further.
>
> Note, I enabled function tracing to trace the scheduler function:
>
> # trace-cmd start -p function -l schedule
>
> And then ran
On Fri, 6 Jul 2018 17:39:22 -0400
Steven Rostedt wrote:
> On Fri, 6 Jul 2018 17:24:28 -0400
> Steven Rostedt wrote:
>
> > I'll investigate further.
>
> Note, I enabled function tracing to trace the scheduler function:
>
> # trace-cmd start -p function -l schedule
>
> And then ran
On Fri, 6 Jul 2018 17:24:28 -0400
Steven Rostedt wrote:
> I'll investigate further.
Note, I enabled function tracing to trace the scheduler function:
# trace-cmd start -p function -l schedule
And then ran cyclictest. That does not cause any noticeable increase
in latency (try it). So there
On Fri, 6 Jul 2018 17:24:28 -0400
Steven Rostedt wrote:
> I'll investigate further.
Note, I enabled function tracing to trace the scheduler function:
# trace-cmd start -p function -l schedule
And then ran cyclictest. That does not cause any noticeable increase
in latency (try it). So there
On Fri, 6 Jul 2018 08:22:01 +0200
Claudio wrote:
> Hello all,
>
> I have been experimenting with the idea of leaving ftrace enabled, with sched
> events,
> on production systems.
>
> The main concern that I am having at the moment is about the impact on the
> system.
> Enabling the sched
On Fri, 6 Jul 2018 08:22:01 +0200
Claudio wrote:
> Hello all,
>
> I have been experimenting with the idea of leaving ftrace enabled, with sched
> events,
> on production systems.
>
> The main concern that I am having at the moment is about the impact on the
> system.
> Enabling the sched
Hello all,
I have been experimenting with the idea of leaving ftrace enabled, with sched
events,
on production systems.
The main concern that I am having at the moment is about the impact on the
system.
Enabling the sched events that I currently need for the tracing application
seems to slow
Hello all,
I have been experimenting with the idea of leaving ftrace enabled, with sched
events,
on production systems.
The main concern that I am having at the moment is about the impact on the
system.
Enabling the sched events that I currently need for the tracing application
seems to slow
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