linux-kernel - Re: perf: Add support for full Intel event lists

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Date:	Mon, 10 Mar 2014 23:13:36 +0000
From:	Ben Hutchings <ben@...adent.org.uk>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...radead.org, mingo@...nel.org, linux-kernel@...r.kernel.org,
	peterz@...radead.org, eranian@...gle.com, namhyung@...nel.org,
	jolsa@...hat.com
Subject: Re: perf: Add support for full Intel event lists

On Mon, 2014-03-10 at 23:14 +0100, Andi Kleen wrote:
> On Mon, Mar 10, 2014 at 07:39:14PM +0000, Ben Hutchings wrote:
> > On Wed, 2014-03-05 at 11:49 -0800, Andi Kleen wrote:
> > [...]
> > > I implemented an automatic downloader to get the event file for the
> > > current CPU.  The events are stored in ~/.events.
> > [...]
> > 
> > This directory should be placed under $XDG_CACHE_DIR (default:
> > ~/.cache), and should have a more specific name like 'perf-events'.
> 
> Ok.
> 
> I don't like calling it perf-events because it will be used
> by other non perf tools too. I guess pmu-events could do.
> 
> > 
> > It might be useful to also support a system directory for these,
> > under /var/cache.
> 
> I don't want people shipping those.  It just causes lots 
> of outdated events everywhere, like in oprofile.

Sure, no-one should be shipping files under /var/cache.  It would be a
an alternate download location.

Ben.

-- 
Ben Hutchings
Computers are not intelligent.	They only think they are.

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