linux-kernel - Re: [PATCH v2 5/7] perf jevents: Add python converter script

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Message-ID: <96ad6825-7607-92ef-566c-3e7a54c397bb@linux.intel.com>
Date:   Wed, 11 May 2022 14:47:22 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Ian Rogers <irogers@...gle.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Jiri Olsa <jolsa@...nel.org>,
        Namhyung Kim <namhyung@...nel.org>,
        John Garry <john.garry@...wei.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Zhengjun Xing <zhengjun.xing@...ux.intel.com>,
        Felix Fietkau <nbd@....name>, Qi Liu <liuqi115@...wei.com>,
        Like Xu <likexu@...cent.com>, linux-kernel@...r.kernel.org,
        linux-perf-users@...r.kernel.org,
        Nick Forrington <nick.forrington@....com>,
        Kajol Jain <kjain@...ux.ibm.com>,
        James Clark <james.clark@....com>,
        Andrew Kilroy <andrew.kilroy@....com>,
        "Paul A . Clarke" <pc@...ibm.com>, Will Deacon <will@...nel.org>,
        Mathieu Poirier <mathieu.poirier@...aro.org>,
        ananth.narayan@....com, ravi.bangoria@....com,
        santosh.shukla@....com, sandipan.das@....com,
        Caleb Biggers <caleb.biggers@...el.com>,
        Perry Taylor <perry.taylor@...el.com>,
        Kshipra Bopardikar <kshipra.bopardikar@...el.com>
Cc:     Stephane Eranian <eranian@...gle.com>
Subject: Re: [PATCH v2 5/7] perf jevents: Add python converter script


On 5/11/2022 2:15 PM, Ian Rogers wrote:
> jevents.c is large, has a dependency on an old forked version of jsmn,
> and is challenging to work upon. A lot of jevents.c's complexity comes
> from needing to write json and csv parsing from first principles. In
> contrast python has this functionality in standard libraries and is
> already a build pre-requisite for tools like asciidoc (that builds all
> of the perf man pages).


Well I was still hoping at some point we could have run time loading of 
events. But yes if that's not

happening then this probably the right approach.

-Andi