From: Hubertus Franke <frankeh@watson.ibm.com>
To: Daniel Egger <degger@fhm.edu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: GCOV Support for Linux (including dynamic modules)
Date: Mon, 11 Feb 2002 17:43:47 -0500 [thread overview]
Message-ID: <20020211174347.B1931@elinux01.watson.ibm.com> (raw)
In-Reply-To: <20020211131253.A1468@elinux01.watson.ibm.com> <1013460543.1918.10.camel@sonja>
In-Reply-To: <1013460543.1918.10.camel@sonja>; from degger@fhm.edu on Mon, Feb 11, 2002 at 09:49:03PM +0100
On Mon, Feb 11, 2002 at 09:49:03PM +0100, Daniel Egger wrote:
> Am Mon, 2002-02-11 um 19.12 schrieb Hubertus Franke:
>
> > GCOV kernel support for Linux
> > =============================
>
> I'm VERY excited 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.
>
> --
> Servus,
> Daniel
(auch) Servus
-- Hubertus
prev parent reply other threads:[~2002-02-11 22:45 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-11 18:12 Hubertus Franke
2002-02-11 20:49 ` Daniel Egger
2002-02-11 22:43 ` Hubertus Franke [this message]
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