Re: [RFC] Instrumentation (was Re: 2.6.11-rc1-mm1)

[Thomas Gleixner]

On Sun, 2005-01-16 at 20:54 -0500, Karim Yaghmour wrote:

> If you really want to define layers, then there are actually four
> layers:
> 1- hooking mechanism
> 2- event definition / registration
> 3- event management infrastructure
> 4- transport mechanism
> 
> LTT currently does 1, 2 & 3. Clearly, as in the mail I refered to
> earlier, there is code in the kernel that already does 1, 2, 3,
> and 4 in very hardwired/ad-hoc fashion and there isn't anyone asking
> for them to remove it. We're offering 4 separately and are putting
> LTT on top of it. If you want to get 1 & 2 separately, have a look
> at kernel hooks and genevent:

I know that there is enough code which does x,y,z hardcoded/hardwired
already. 

Thats the point. Adding another hardwired implementation does not give
us a possibility to solve the hardwired problem of the already available
stuff.

tglx


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