linux-kernel - Re: [PATCH V3] perf/x86/intel/uncore: remove nonexistent clockticks event for client uncore

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Message-ID: <20170711152449.GB3441@tassilo.jf.intel.com>
Date:   Tue, 11 Jul 2017 08:24:49 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     kan.liang@...el.com
Cc:     peterz@...radead.org, mingo@...hat.com,
        linux-kernel@...r.kernel.org, jolsa@...hat.com, acme@...nel.org,
        eranian@...gle.com
Subject: Re: [PATCH V3] perf/x86/intel/uncore: remove nonexistent clockticks
 event for client uncore

> User observable change with the patch.
> clockticks event is removed from CBOX. User may need to change their
> script to use uncore_clock/clockticks/ instead.

I don't think we can do that and break everyone's scripts. Have to keep
the old behavior, even though it is not ideal.

Or you fix the the uncore subsystem to support a separate attribute
array for the first cbox.

-Andi