Re: [PATCH 1/4] perf,x86: De-obfuscate HSW offcore bits

From: Peter Zijlstra
Date: Thu Oct 23 2014 - 09:13:47 EST


On Thu, Oct 23, 2014 at 02:16:19PM +0200, Borislav Petkov wrote:
> On Thu, Oct 23, 2014 at 12:51:20PM +0200, Peter Zijlstra wrote:
> > Andi introduced the HSW cache events array, but used magic constants
> > against convention as set by all the other uarchs. Try and deobfuscate
> > these a bit.
> >
> > This patch should not change the actual values generated; however
> > weird they seems.
> >
> > In that patch Andi also said there were differences between the
> > SNB/IVB and HSW/BDW offcore tables but failed to specify which and
> > why.
> >
> > Fixes: 86a349a28b24 ("perf/x86/intel: Add Broadwell core support")
> > Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
> > Cc: Stephane Eranian <eranian@xxxxxxxxxx>
> > Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
> > Link: http://lkml.kernel.org/n/tip-@xxxxxxxxxxxxxx
>
> This link looks funny.

Yes it does, I seem to have not isntalled rndpwd or whatever that script
is using. Also I usually grep -v "^Link:" .mbox files before sending,
guess what I forgot :-)
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