Re: [RFC PATCHSET] sched,perf: unify tracers in sched and move perf on top of TP

Tejun Heo
2010-05-05T09:55:24Z

Hello,

On 05/05/2010 11:51 AM, Peter Zijlstra wrote:
>> I was wondering the other way around - ie. the possibility to make
>> perf optional and maybe even as a module which depends on TPs, which
>> would be nicer than the current situation and make the code less
>> cluttered too.
>
> I really really hate making perf rely on tracepoints.

Hmmm.... may I ask why? Unifying hooking mechanism seems like a good
idea to me and it's not like it's gonna add any runtime overhead
although it does complicate init/exit but well that's something you
have to pay if you wanna do things dynamically and sans the ifdef
stuff it's like a couple hundred lines of isolated code.

Thanks.

--
tejun