# Create a build to optimize the boot KPI

To optimize device boot time, use the `meta-qcom/ci/performance.yml` configuration.

The `performance.yml` file modifies `KERNEL_CMDLINE_EXTRA` to append the
**quiet** option to the kernel command line, reducing console output during
boot and improving boot performance.

To start the build environment, run the following command:

kas shell meta-qcom/ci/<machine-name>.yml:meta-qcom/ci/<distro-name>.yml:meta-qcom/ci/linux-qcom-6.18.yml:meta-qcom/ci/performance.yml
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Last Published: Mar 17, 2026

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