linux-kernel - Re: [PATCHv2 5/8] perf tools: Get precise

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Message-ID: <20190314154911.GE24002@tassilo.jf.intel.com>
Date:   Thu, 14 Mar 2019 08:49:11 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Jiri Olsa <jolsa@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <a.p.zijlstra@...llo.nl>,
        Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>,
        Nageswara R Sastry <nasastry@...ibm.com>,
        Ravi Bangoria <ravi.bangoria@...ux.ibm.com>
Subject: Re: [PATCHv2 5/8] perf tools: Get precise_ip from the pmu config

> > Still seems like a hack. Even though I don't know of a case that
> > would break now. But it would be better to have the precise probing
> > in the open retry loop, instead of trying to reinvent it here.
> 
> how about something like below?

Yes looks reasonable.

-Andi