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Mark Hatle
75fcc7c806
The fixmepath file that is generated contains a list of all of the files that need their paths fixed. In the previous version the fixmepath was generated to include all of the files that sed may have changed. In the new version, we first grep the files to see if they contain a path that needs to be changed, only then do we perform the sed operation on those files. This results in a modest performance increate in the creation of the sstate file. The following numbers include the do_package and do_populate_sysroot tasks on the perl recipe. Before the change: real 4m23.018s user 1m57.067s sys 1m33.327s After the change: real 4m13.083s user 1m54.062s sys 1m26.064s However, a more significnt performance gain is felt during the extraction/install of sstate cache files, as the fixmepaths file now has a significantly smaller list of files to modify. Before the change: real 0m39.798s user 0m11.158s sys 0m12.642s After the change: real 0m25.511s user 0m8.408s sys 0m5.077s (All numbers above were recorded with a cold filesystem cache on a machine with 12 GB of ram.) (From OE-Core rev: 46067264bedeff8248a2b2441733420fe6651f84) Signed-off-by: Mark Hatle <mark.hatle@windriver.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Poky
====
Poky is an integration of various components to form a complete prepackaged
build system and development environment. It features support for building
customised embedded device style images. There are reference demo images
featuring a X11/Matchbox/GTK themed UI called Sato. The system supports
cross-architecture application development using QEMU emulation and a
standalone toolchain and SDK with IDE integration.
Additional information on the specifics of hardware that Poky supports
is available in README.hardware. Further hardware support can easily be added
in the form of layers which extend the systems capabilities in a modular way.
As an integration layer Poky consists of several upstream projects such as
BitBake, OpenEmbedded-Core, Yocto documentation and various sources of information
e.g. for the hardware support. Poky is in turn a component of the Yocto Project.
The Yocto Project has extensive documentation about the system including a
reference manual which can be found at:
http://yoctoproject.org/community/documentation
OpenEmbedded-Core is a layer containing the core metadata for current versions
of OpenEmbedded. It is distro-less (can build a functional image with
DISTRO = "") and contains only emulated machine support.
For information about OpenEmbedded, see the OpenEmbedded website:
http://www.openembedded.org/