9802b2e650
Implements a number of optimizations to the SQL used in the hash
equivalence server:
1) Two indexes are created for the two methods (method, taskhash and
method outhash) by which rows are found in order to speed up the
lookup
2) An extra SELECT to lookup the just inserted row was removed. This
SELECT is unnecessary since all of the information about the newly
inserted row is already available.
3) A uniqueness constraint was added to the table. This should allow
the server to be multithreaded in the future since duplicate inserts
can be detected (and ignored). This change requires bumping the
database version to '2', since a uniqueness constraint can't be
added to an existing table.
4) Some comments are added to clarify the trick SELECT statement used
when inserting new equivalent hashes
(Bitbake rev: 7aec8632e67b4f0ab7b72692c40a42f6926608c3)
Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
Bitbake
BitBake is a generic task execution engine that allows shell and Python tasks to be run efficiently and in parallel while working within complex inter-task dependency constraints. One of BitBake's main users, OpenEmbedded, takes this core and builds embedded Linux software stacks using a task-oriented approach.
For information about Bitbake, see the OpenEmbedded website: http://www.openembedded.org/
Bitbake plain documentation can be found under the doc directory or its integrated html version at the Yocto Project website: http://yoctoproject.org/documentation
Contributing
Please refer to http://www.openembedded.org/wiki/How_to_submit_a_patch_to_OpenEmbedded for guidelines on how to submit patches, just note that the latter documentation is intended for OpenEmbedded (and its core) not bitbake patches (bitbake-devel@lists.openembedded.org) but in general main guidelines apply. Once the commit(s) have been created, the way to send the patch is through git-send-email. For example, to send the last commit (HEAD) on current branch, type:
git send-email -M -1 --to bitbake-devel@lists.openembedded.org
Mailing list:
http://lists.openembedded.org/mailman/listinfo/bitbake-devel
Source code:
http://git.openembedded.org/bitbake/