linux-kernel - Re: [PATCH v3 0/3] Remove symbol_name_rb

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Message-ID: <CAM9d7ciLAUc+0pxeLU91RCxi-oWmV5q=Nb0BQ_tP_4U=PGCtmA@mail.gmail.com>
Date:   Fri, 23 Jun 2023 21:42:20 -0700
From:   Namhyung Kim <namhyung@...nel.org>
To:     Ian Rogers <irogers@...gle.com>
Cc:     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>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Kan Liang <kan.liang@...ux.intel.com>,
        Yang Jihong <yangjihong1@...wei.com>,
        Carsten Haitzler <carsten.haitzler@....com>,
        Changbin Du <changbin.du@...wei.com>,
        Athira Rajeev <atrajeev@...ux.vnet.ibm.com>,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        Jason Wang <wangborong@...rlc.com>,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 0/3] Remove symbol_name_rb_node

On Thu, Jun 22, 2023 at 10:45 PM Ian Rogers <irogers@...gle.com> wrote:
>
> Use a sorted array of symbol pointers to avoid the potentially
> unnecessary 3 pointers (rb_node) for the name sorted symbols. Saves
> been 24 and 16 bytes per symbol.
>
> v3. Move sort by name dso lock into its own patch.
> v2. map__find_symbol_by_name_idx so that map__find_symbol_by_name
>     doesn't need an optional parameter. Separate out
>     symbol_conf.sort_by_name removal.
>
> Ian Rogers (3):
>   perf dso: Sort symbols under lock
>   perf symbol: Remove symbol_name_rb_node
>   perf symbol_conf: Remove now unused sort_by_name

Acked-by: Namhyung Kim <namhyung@...nel.org>

Thanks,
Namhyung


>
>  tools/perf/builtin-kallsyms.c    |   1 -
>  tools/perf/builtin-lock.c        |   2 -
>  tools/perf/builtin-report.c      |   1 -
>  tools/perf/tests/builtin-test.c  |   1 -
>  tools/perf/util/dso.c            |   7 +-
>  tools/perf/util/dso.h            |   3 +-
>  tools/perf/util/map.c            |  14 +++-
>  tools/perf/util/map.h            |  12 +--
>  tools/perf/util/probe-event.c    |  16 ++--
>  tools/perf/util/symbol.c         | 131 ++++++++++++++++---------------
>  tools/perf/util/symbol.h         |  12 +--
>  tools/perf/util/symbol_conf.h    |   1 -
>  tools/perf/util/symbol_fprintf.c |  10 +--
>  13 files changed, 106 insertions(+), 105 deletions(-)
>
> --
> 2.41.0.162.gfafddb0af9-goog
>