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d="scan'208";a="532533598" Received: from yjin15-mobl1.ccr.corp.intel.com (HELO [10.238.4.83]) ([10.238.4.83]) by orsmga005-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 19 Oct 2020 01:02:59 -0700 Subject: Re: [perf metricgroup] fcc9c5243c: perf-sanity-tests.Parse_and_process_metrics.fail To: Andi Kleen , Ian Rogers References: <1602152121-240367-10-git-send-email-john.garry@huawei.com> <20201018085031.GK11647@shao2-debian> <20201019015225.GI466880@tassilo.jf.intel.com> From: "Jin, Yao" Message-ID: <0b84ddc4-ddba-34c2-0996-0d83c7008a6f@linux.intel.com> Date: Mon, 19 Oct 2020 16:02:57 +0800 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.12.1 MIME-Version: 1.0 In-Reply-To: <20201019015225.GI466880@tassilo.jf.intel.com> Content-Language: en-US X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201019_040311_384367_EDDE85D5 X-CRM114-Status: GOOD ( 18.43 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Mark Rutland , Joakim Zhang , 0day robot , Mathieu Poirier , kernel test robot , Peter Zijlstra , Will Deacon , John Garry , linuxarm@huawei.com, Arnaldo Carvalho de Melo , LKML , zhangshaokun@hisilicon.com, Alexander Shishkin , Ingo Molnar , James Clark , Leo Yan , Namhyung Kim , lkp@lists.01.org, Jiri Olsa , Linux ARM , linux-imx@nxp.com Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 10/19/2020 9:52 AM, Andi Kleen wrote: >> I believe this is a Skylake and there is a known bug in the Skylake >> metric DRAM_Parallel_Reads as described here: >> https://lore.kernel.org/lkml/CAP-5=fXejVaQa9qfW66cY77qB962+jbe8tT5bsLoOOcFmODnWQ@mail.gmail.com/ >> Fixing the bug needs more knowledge than what is available in manuals. >> Hopefully Intel can take a look. > > Oh I missed the original mail for some reason. Yes it should be cmask instead of thresh > for client. I think thresh is used on the server uncore only, not on the client. > > Jin Yao, can you send a patch please? > > -Andi > Yes, the DRAM_Parallel_Reads works on server but it's failed on client. I will post a patch to fix that. Thanks Jin Yao _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel