Improve the performance of data logging in toasterui.
We modify the data queries used to:
* cache searching in memory
* insert in bulk (i.e. multiple values per insert, where possible)
On development test rig (networked mysql), on no-op build,
time for data recording is reduced from 4:10 to 1:30 (minutes).
We also improve the logging, so it is easier to detect
toasterui errors.
(Bitbake rev: d42784432f927f58730caf80546c66772e0fec89)
Signed-off-by: Alexandru DAMIAN <alexandru.damian@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
3e9fc8d091