Re: [PATCH 2/8] tracing: create automated trace defines

Jeremy Fitzhardinge
2009-04-21T17:18:46Z

Mathieu Desnoyers wrote:
> * Andi Kleen (andi@firstfloor.org) wrote:
>
>> Mathieu Desnoyers <compudj@krystal.dyndns.org> writes:
>>
>>
>>> Given how slow function calls are, at least on x86,
>>>
>> That was with frame pointers right? Frame pointers tend to make
>> function calls slow.
>>
>>
>
> Looking at my .config, CONFIG_FRAME_POINTER is disabled here. So we
> should probably expect an even worse performance impact if we enable
> them.

I tried disabling frame pointers, but it looked to me like tracing
selects them. Did I misread, or perhaps it was some other config option
doing it...

J