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by **Daniel Egge** » Wed, 13 Feb 2002 06:30:08

Am Mon, 2002-02-11 um 19.12 schrieb Hubertus Franke:

Quote:> GCOV kernel support for Linux
> =============================

I'm VERY e*d about that because gcov is a very useful tool when
used with care.

Can you already tell how much it will slow down a kernel that's compiled
with it?

--
Servus,
Daniel

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by **Hubertus Frank** » Wed, 13 Feb 2002 07:50:17

> Am Mon, 2002-02-11 um 19.12 schrieb Hubertus Franke:

> > GCOV kernel support for Linux
> > =============================

> I'm VERY e*d about that because gcov is a very useful tool when
> used with care.

> Can you already tell how much it will slow down a kernel that's compiled
> with it?

We have really not done that kind of test.
Maybe somebody wants to try it :-) and post some data back.
All we know the system runs properly if the entire kernel is gcov'd.

Next revision we are thinking of making this scalable through
CPU specific counter blocks (that's going to be some fun poking in gcc etc)
and see whether we can get the atomicity problem cracked.

Quote:
> --
> Servus,
> Daniel

(auch) Servus
-- Hubertus
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Very Computer

GCOV Support for Linux (including dynamic modules)

GCOV Support for Linux (including dynamic modules)

GCOV Support for Linux (including dynamic modules)