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a="2668014" X-IronPort-AV: E=Sophos;i="6.27,196,1787036400"; d="scan'208";a="2668014" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2026 21:43:03 -0800 X-CSE-ConnectionGUID: es2nfcVLQ4yt3XSi/+j0gw== X-CSE-MsgGUID: KdcY7OM3TOOi6gnBLaSxtA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.27,196,1787036400"; d="scan'208";a="7041409" Received: from unknown (HELO [10.238.2.61]) ([10.238.2.61]) by smtpauth.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2026 21:42:59 -0800 Message-ID: <7b27e9e5-280a-4a79-9419-496a583133a5@linux.intel.com> Date: Thu, 5 Nov 2026 13:42:57 +0800 X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v1] perf jevents: Don't encode MSRs with no value To: Ian Rogers , Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Jiri Olsa , Adrian Hunter , James Clark , Edward Baker , Thomas Falcon , Perry Taylor , linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org Cc: kernel test robot References: <20261105044841.102295-1-irogers@google.com> Content-Language: en-US From: "Mi, Dapeng" In-Reply-To: <20261105044841.102295-1-irogers@google.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Reviewed-by: Dapeng Mi On 11/5/2026 12:48 PM, Ian Rogers wrote: > Fixes the events mem_trans_retired.load_latency (EMR) and > mem_inst_retired.latency_above_threshold_0 (NHM, WSM) that were having > their ldlat= value encoded as python's None. > > Fixes: ffc606ada3d7 ("perf jevents: Add python converter script") > Reported-by: kernel test robot > Closes: https://lore.kernel.org/oe-lkp/202611050801.67bb4af4-lkp@intel.com > Signed-off-by: Ian Rogers > --- > tools/perf/pmu-events/jevents.py | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/tools/perf/pmu-events/jevents.py b/tools/perf/pmu-events/jevents.py > index 080e04b51b8c..e083f7495e67 100755 > --- a/tools/perf/pmu-events/jevents.py > +++ b/tools/perf/pmu-events/jevents.py > @@ -396,7 +396,7 @@ class JsonEvent: > event += f',{value}{canonicalize_value(jd[key])}' > if filter: > event += f',{filter}' > - if msr: > + if msr and msrval: > event += f',{msr}{msrval}' > if self.desc and extra_desc: > self.desc += extra_desc