Re: [PATCH v6 2/2] tracing: Add support for preempt and irq enable/disable events

[Steven Rostedt]

On Mon, 25 Sep 2017 15:57:30 -0700
Joel Fernandes <joelaf@xxxxxxxxxx> wrote:

> 2. This stuff is already a bit trace heavy, I prefer not to generate
> event every time the preempt count increases. Ofcourse filters but
> still then we have the filtering overhead for a usecase that I am not
> really targetting with this patchset.

This is actually a key reason I would agree with Joel. Just tracing the
toggle is extremely heavy. Adding all the other calls will probably
make it useless.

-- Steve