On Wed, Jun 22, 2016 at 1:56 PM, Alexander Shishkin
wrote:
> [adding Felipe for his sudden interest in the subject matter]
>
> Chunyan Zhang writes:
>
>> +static struct stm_ftrace *trace_output;
>
> What you want is a possibility to have different ftrace outputs, not
> different STM outputs for f
[adding Felipe for his sudden interest in the subject matter]
Chunyan Zhang writes:
> +static struct stm_ftrace *trace_output;
What you want is a possibility to have different ftrace outputs, not
different STM outputs for ftrace (again, STM core already does this).
In other words, here, you wan
This patch is introducing a new output to print Ftrace messages
to STM buffer when the traces happen. In order to reduce the
effect on timing overhead as much as possible, only the current
function and its parent's instruction pointer will be recorded
into STM. This idea was first introduced by Ph
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