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[80.29.82.228]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4a1c8af2fcesm227892415e9.8.2026.10.18.08.54.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 18 Oct 2026 08:54:26 -0700 (PDT) From: =?UTF-8?q?Ram=C3=B3n=20Jes=C3=BAs=20Miranda?= To: Pragnesh Papaniya , Sibi Sankar Cc: Sudeep Holla , Cristian Marussi , Bjorn Andersson , Konrad Dybcio , Rajendra Nayak , Amir Vajid , linux-arm-msm@vger.kernel.org, arm-scmi@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH RFC 0/10] firmware: arm_scmi: vendors: Qualcomm Generic Vendor Extensions Date: Sun, 18 Oct 2026 15:54:25 +0000 Message-ID: <20261018155425.1299660-1-ramonjesusmiranda@gmail.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260724-rfc_v8_scmi_memlat-v1-0-cb732bcff1f4@oss.qualcomm.com> References: <20260724-rfc_v8_scmi_memlat-v1-0-cb732bcff1f4@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Hi, I tested patches 1-9 of this series on a Microsoft Surface Pro 11 (X1E80100, "hamoa"), on top of 7.2.8 with Linux booted at EL2. Without memlat the CPU never raises DDR/LLCC: the cpu-bwmon instances stay at their lowest vote (4.8 GB/s) under full load. STREAM triad with 12 threads gives 38 GB/s at EL2 and 41 GB/s under Gunyah at EL1. With the series it reaches 67 GB/s; the ddr/llcc devfreq devices go back to 547/300 MHz when idle. llama.cpp on the CPU (Qwen3-8B Q4_0) goes from 7 to 21 tokens/s of generation. s2idle is not affected: CXSD + AOSD + DDR stay in their low power modes for 99.9% of an 880 s suspend. One thing I noticed: the protocol 0x80 module (qcom-generic-ext) does not get autoloaded from the protocol@80 node here, so I load it and scmi-qcom-memlat-devfreq from a service at boot. Tested-by: Ramón Jesús Miranda Thanks, Ramón