Yes. I saw the attached patches. I am definitely going to apply them and see how they work out. In his last patch, there are a bunch of magic numbers used to reserve free page blocks at different orders. I think that is the most interesting part. If Thomas can share how to determine these numbers with his theory based on workloads, hardware/chipset, that would be a great guideline for sysadmins to take advantage of the patches. — Best Regards, Yan Zi On 22 Feb 2018, at 21:01, Christopher Lameter wrote: > On Thu, 22 Feb 2018, Zi Yan wrote: > >> I am very interested in the theory behind your patch. Do you mind sharing it? Is there >> any required math background before reading it? Is there any related papers/articles I could >> also read? > > His patches were attached to the email you responded to. Guess I should > update the patchset with the suggested changes and repost.