Re: [PATCH] improve OProfile on many-way systems

[John Levon]

On Sat, Aug 21, 2004 at 01:58:33PM -0700, Andrew Morton wrote:

> > Anton prompted me to get this patch merged.  It changes the core buffer
> >  sync algorithm of OProfile to avoid global locks wherever possible.
> >  Anton tested an earlier version of this patch with some success. I've
> >  lightly tested this applied against 2.6.8.1-mm3 on my two-way machine.
> 
> OK.  Oprofile isn't the most commonly tested part of the kernel.  Given
> that you've "lightly tested" it,

I hammered the patch with earlier kernel versions for some time a while
ago. But that was on a 2-way, which hardly counts as proper testing.

> how do we know when it has had sufficient testing for its swim upstream?

I thought one of the points of the mm tree was to give things some
testing first.

> Does Philippe have some test suite, perhaps?

He doesn't have access to any SMP machines at all, last I heard.

regards
john
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