From: Olof Johansson <olof@lixom•net>
To: Mike Wolf <mjw@linux•vnet.ibm.com>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: [PATCH] powerpc: adjust oprofile_cpu_type
Date: Thu, 23 Apr 2009 17:09:09 -0500 [thread overview]
Message-ID: <20090423220909.GA10487@lixom.net> (raw)
In-Reply-To: <1240523816.12000.2.camel@mx3>
On Thu, Apr 23, 2009 at 04:56:56PM -0500, Mike Wolf wrote:
> On Thu, 2009-04-23 at 12:52 -0500, Olof Johansson wrote:
> > On Wed, Apr 22, 2009 at 06:40:12PM -0500, Mike Wolf wrote:
> > > Resending. the patch was munged last time.
> > >
> > >
> > > Oprofile is changing the naming it is using for the compatibility modes.
> > > Instead of having compat-power<x>, oprofile will go to family naming
> > > convention and use compat-v<x>. Currently only compat-v1 will be
> > > defined.
> >
> > Compat V1 of what? powerpc64? IBM powerpc64 PMC?
>
> IBM powerpc PMC
Sounds like it'd be appropriate to have an ibm somewhere in the version
string then.
> > The performance
> > monitors are not architected, to give them a version number without
> > vendor information seems weird.
> The current ones all fall into one family and they may be architected in
> the future.
Not all powerpc PMC implementations do, not even all ppc64 ones --
PA6T implements a completely different performance monitor.
The current IBM PMC is included in the appendix of the architecture as
a suggestion on how to implement it, but it is explicitly specified
as being implementation dependent in the architecture.
> > Also, doesn't this break compatibility with existing userspace tools?
> AFAIK there is nothing else that uses these. Oprofile patch was
> rejected and this new naming was suggested from that community.
Ok, as long as you are 100% sure there are no proprietary users either.
-Olof
next prev parent reply other threads:[~2009-04-23 22:07 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-22 23:40 [PATCH] powerpc: adjust oprofile_cpu_type Mike Wolf
2009-04-23 3:47 ` Kumar Gala
2009-04-23 17:52 ` Olof Johansson
2009-04-23 21:56 ` Mike Wolf
2009-04-23 22:09 ` Olof Johansson [this message]
-- strict thread matches above, loose matches on Subject: below --
2009-04-17 19:48 Mike Wolf
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