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Date: Tue, 13 May 2025 16:35:15 -0300
From: Arnaldo Carvalho de Melo <acme@kernel.org>
To: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>, Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>, Mark Rutland <mark.rutland@arm.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@kernel.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Kan Liang <kan.liang@linux.intel.com>,
	James Clark <james.clark@linaro.org>, Xu Yang <xu.yang_2@nxp.com>,
	John Garry <john.g.garry@oracle.com>,
	Dominique Martinet <asmadeus@codewreck.org>,
	Thomas Richter <tmricht@linux.ibm.com>,
	Weilin Wang <weilin.wang@intel.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v1 0/3] Metric related performance improvements
Message-ID: <aCOe85iNjzgIW1B-@x1>
References: <20250410044532.52017-1-irogers@google.com>
 <Z_dp7E2wtSek-KHo@z2>
 <aCOewZobRD1dPrl4@x1>
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In-Reply-To: <aCOewZobRD1dPrl4@x1>

On Tue, May 13, 2025 at 04:34:28PM -0300, Arnaldo Carvalho de Melo wrote:
> On Wed, Apr 09, 2025 at 11:49:16PM -0700, Namhyung Kim wrote:
> > Great, I also see the speedup on my machine from 32s to 3s.

> > Tested-by: Namhyung Kim <namhyung@kernel.org>
 
> I'm collecting this for v2 as well, ok? Holler if you disagree.

BTW, in my workstation:

Before:

  root@number:~# time perf test "Parsing of PMU event table metrics"
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok

  real  0m9.286s
  user  0m9.354s
  sys   0m0.062s
  root@number:~#

After:

  root@number:~# time perf test "Parsing of PMU event table metrics"
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok

  real  0m0.689s
  user  0m0.766s
  sys   0m0.042s
  root@number:~# time perf test 10
   10: PMU JSON event tests                                            :
   10.1: PMU event table sanity                                        : Ok
   10.2: PMU event map aliases                                         : Ok
   10.3: Parsing of PMU event table metrics                            : Ok
   10.4: Parsing of PMU event table metrics with fake PMUs             : Ok
   10.5: Parsing of metric thresholds with fake PMUs                   : Ok

  real  0m0.696s
  user  0m0.807s
  sys   0m0.064s
  root@number:~#