> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# 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:

```text theme={null}
kas shell meta-qcom/ci/<machine-name>.yml:meta-qcom/ci/<distro-name>.yml:meta-qcom/ci/performance.yml
```