How to do it...

To enable the collection of statistics, your project needs to inherit the buildstats class by adding it to USER_CLASSES in your conf/local.conf file. By default, the fsl-community-bsp build project is configured to enable them:

USER_CLASSES ?= "buildstats"  

You can configure the location of these statistics with the BUILDSTATS_BASE variable, and by default it is set to the buildstats folder in the tmp directory under the build directory (tmp/buildstats).

The buildstats folder contains a folder per image with the build stats under a timestamp folder. Under it will be a sub-directory per package in your built image, and a build_stats file that contains:

• Host system information
• Root filesystem location and size
• Build time
• Average CPU usage