linux-kernel - Re: [RFC V3 0/3] perf stat: improvements for handling of multiple PMUs

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Date:   Wed, 7 Mar 2018 11:04:08 +0100
From:   Jiri Olsa <jolsa@...hat.com>
To:     Agustin Vega-Frias <agustinv@...eaurora.org>
Cc:     linux-kernel@...r.kernel.org, linux-perf-users@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Andi Kleen <ak@...ux.intel.com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Namhyung Kim <namhyung@...nel.org>, timur@...eaurora.org
Subject: Re: [RFC V3 0/3] perf stat: improvements for handling of multiple
 PMUs

On Tue, Mar 06, 2018 at 09:04:41AM -0500, Agustin Vega-Frias wrote:
> This series of patches adds some simple improvements to the way perf stat
> handles PMUs that have multiple instances by:
> 
> 1. Adding glob-like matching in addition to the prefix-based matching
>    introduced previously (patch 1).
> 2. Adding the ability to recover the PMU names when printing the events
>    separately with the --no-merge option (patch 2).
> 3. Restoring auto-merge for events created by prefix or glob-like match
>    (patch 3). Note that this still keeps the behavior that disables
>    auto-merging of legacy symbolic events (e.g. cycles).
> 
> V3:
> 
> - Consolidated prefix and glob matching into a single glob match with a
>   trailing * to maintain prefix matching and have more consistent behavior.
>   E.g., all of these match all the uncore_imc PMUs: imc, imc*, *imc, *imc*

Acked-by: Jiri Olsa <jolsa@...nel.org>

thanks,
jirka