Today I created a patch that builds on the Google v3
patch where I added some ideas of my own and some ideas
from the Percona patches. The patch is here.
Here is a reference to the patch derived from the Google
Here is a reference to my original patch (this is likely to
contain a bug somewhere so usage for other than benchmarking
So it will be interesting to see a comparison of all those
variants directly against each other on a number of benchmarks.