> Could you add some actual descriptions to these patches that say why you > are doing this, and why this particular patch is needed and implemented > this way? > > You mention that THP is slow for you, then go on to implement some > non-cached page zero'ing, but you never quite connect the dots.
I actually didn't write these patches (made a few tweaks to get them running on the latest kernel though). They were submitted last July by Peter Zijlstra. Andi Kleen suggested that I re-run some of my tests using these patches to see whether they solved my issue. I just included my updated patches so that people could confirm that I'd pulled them forward properly. The messages from the original submission can be found here: https://lkml.org/lkml/2012/7/20/165 I did write the patch that these were submitted in response to, to control THP on a per-process basis, but it looks like we're probably going to end up taking this in a different direction, pending some more test results. - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
