linux-kernel - Re: [PATCH 05/10] perf, tools: Support event aliases for non cpu// pmus

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Message-ID: <20161017102817.GB17938@krava>
Date:   Mon, 17 Oct 2016 12:28:17 +0200
From:   Jiri Olsa <jolsa@...hat.com>
To:     Andi Kleen <andi@...stfloor.org>
Cc:     acme@...nel.org, jolsa@...nel.org, sukadev@...ux.vnet.ibm.com,
        eranian@...gle.com, linux-kernel@...r.kernel.org,
        Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 05/10] perf, tools: Support event aliases for non cpu//
 pmus

On Thu, Oct 13, 2016 at 02:15:27PM -0700, Andi Kleen wrote:
> From: Andi Kleen <ak@...ux.intel.com>
> 
> The code for handling pmu aliases without specifying
> the PMU hardcoded only supported the cpu PMU.
> 
> This patch extends it to work for all PMUs. We always
> duplicate the event for all PMUs that have an matching alias.
> This allows to automatically expand an alias for all instances
> of a PMU (so for example you can monitor all cache boxes with
> a single event)

could you please put some examples of new usage into
changelog.. it's be easier to sell it

thanks,
jirka