This change allows the user to pick a different compressor to be used after the sdk is ran through tar. In my testing I found it speeds up sdk creation times ~20-30% if a compressor that supports multiple cores is used. Here are some measurments:
Using default compressor(bzip2): core-image-minimal-1.0-r0: do_populate_sdk: Elapsed time: 133.21 seconds CPU usage: 12.3% core-image-sato-1.0-r0: do_populate_sdk: Elapsed time: 356.85 seconds CPU usage: 11.6% Using pigz: core-image-minimal-1.0-r0: do_populate_sdk: Elapsed time: 102.62 seconds CPU usage: 15.3% core-image-sato-1.0-r0: do_populate_sdk: Elapsed time: 261.66 seconds CPU usage: 15.6% The default compressor hasn't been changed and so I've just been doing it using local.conf for now, but if desired I can submit another patch changing SDK_COMPRESSION_TYPE to pigz by default. This also allows for easy use of xz when disk space concerns are more important than speed. -- _______________________________________________ Openembedded-core mailing list Openembedded-core@lists.openembedded.org http://lists.openembedded.org/mailman/listinfo/openembedded-core
