• Ian Rogers's avatar
    perf parse-events: Allow config on kernel PMU events · fb081153
    Ian Rogers authored
    An event like inst_retired.any on an Intel skylake is found in the
    pmu-events code created from the pipeline event JSON.
    
    The event is an alias for cpu/event=0xc0,period=2000003/ and
    parse-events recognizes the event with the token PE_KERNEL_PMU_EVENT.
    
    The parser doesn't currently allow extra configuration on such events,
    except for modifiers, so:
    
      $ perf stat -e inst_retired.any// /bin/true
      event syntax error: 'inst_retired.any//'
                           \___ parser error
      Run 'perf list' for a list of valid events
    
       Usage: perf stat [<options>] [<command>]
    
          -e, --event <event>   event selector. use 'perf list' to list available events
    
    This patch adds configuration to these events which can be useful for a
    number of parameters like name and call-graph:
    
      $ sudo perf record -e inst_retired.any/call-graph=lbr/ -a sleep 1
      [ perf record: Woken up 1 times to write data ]
      [ perf record: Captured and wrote 1.856 MB perf.data (44 samples) ]
    
    It is necessary for the metric code so that we may add metric-id values
    to these events before they are parsed.
    Signed-off-by: default avatarIan Rogers <irogers@google.com>
    Acked-by: default avatarAndi Kleen <ak@linux.intel.com>
    Cc: Adrian Hunter <adrian.hunter@intel.com>
    Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
    Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
    Cc: Andrew Kilroy <andrew.kilroy@arm.com>
    Cc: Andrew Morton <akpm@linux-foundation.org>
    Cc: Changbin Du <changbin.du@intel.com>
    Cc: Denys Zagorui <dzagorui@cisco.com>
    Cc: Fabian Hemmer <copy@copy.sh>
    Cc: Felix Fietkau <nbd@nbd.name>
    Cc: Heiko Carstens <hca@linux.ibm.com>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Jacob Keller <jacob.e.keller@intel.com>
    Cc: Jiapeng Chong <jiapeng.chong@linux.alibaba.com>
    Cc: Jin Yao <yao.jin@linux.intel.com>
    Cc: Jiri Olsa <jolsa@redhat.com>
    Cc: Joakim Zhang <qiangqing.zhang@nxp.com>
    Cc: John Garry <john.garry@huawei.com>
    Cc: Kajol Jain <kjain@linux.ibm.com>
    Cc: Kan Liang <kan.liang@linux.intel.com>
    Cc: Kees Kook <keescook@chromium.org>
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Namhyung Kim <namhyung@kernel.org>
    Cc: Nicholas Fraser <nfraser@codeweavers.com>
    Cc: Nick Desaulniers <ndesaulniers@google.com>
    Cc: Paul Clarke <pc@us.ibm.com>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Riccardo Mancini <rickyman7@gmail.com>
    Cc: Sami Tolvanen <samitolvanen@google.com>
    Cc: ShihCheng Tu <mrtoastcheng@gmail.com>
    Cc: Song Liu <songliubraving@fb.com>
    Cc: Stephane Eranian <eranian@google.com>
    Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
    Cc: Thomas Richter <tmricht@linux.ibm.com>
    Cc: Wan Jiabing <wanjiabing@vivo.com>
    Cc: Zhen Lei <thunder.leizhen@huawei.com>
    Link: https://lore.kernel.org/r/20211015172132.1162559-16-irogers@google.comSigned-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
    fb081153
parse-events.y 17.7 KB