# Get started with power optimization Before you begin, set up your infrastructure as described in [Qualcomm Linux Build Guide](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-254/introduction.html). This guide also provides information about the common build workflow. ## Prepare performance build Preparing the performance build ensures all power features are optimized and functioning correctly for effective power management. For instructions see [Sign in using SSH](https://docs.qualcomm.com/bundle/publicresource/topics/80-70020-254/how_to.html#use-ssh). The default Qualcomm build is the performance build. For evaluation of any power measurement, use the performance build. The performance build uses the following kernel configurations: - `kernel_platform/kernel/arch/arm64/configs/qcom_defconfig` - `kernel_platform/kernel /arch/arm64/configs/qcom_addons.config` The kernel configurations are defined in the source code kernel recipe at: `layer/meta-qcom-hwe/recipes‑kernel/linux/linux-kernel-qcom_6.6.bb.` `KERNEL_DEFCONFIG = "${S}/arch/arm64/configs/qcom_defconfig"` `KERNEL_CONFIG_FRAGMENTS:append = " ${S}/arch/arm64/configs/qcom_addons.config"` Last Published: Jul 03, 2025 [Previous Topic Overview of power management](https://docs.qualcomm.com/bundle/publicresource/80-70020-30/topics/poweroverview.md) [Next Topic Understand power architecture](https://docs.qualcomm.com/bundle/publicresource/80-70020-30/topics/architecture.md)