"The result was that the copy test (100k copies and deletions) went from ~2700ms to ~37ms, while 100k copies, file lookups and deletions went from ~3900ms to ~40ms. All while the memory footprint shrunk. Unfortunately, this isn't really backportable to libplasma1 as the changes that were required to achieve this were significant. These changes were on top of previous changes made in the refactoring of Package and PackageStructure which drew the data "closer" to Package and cut out a lot of collection creation and copying. So reasonably good wins there."
Continue reading on his blog.
Pardon the terse news posting, but I am still attempting to contacting colleagues and loved ones following today's awful terrorist attacks in Norway. On behalf of Phoronix, my condolences go out to all Norwegians today for the awful acts that took place today in your great land.