On 3/27/19 1:37 PM, Zi Yan wrote: > Actually, the migration throughput difference does not come from > any kernel changes, it is a pure comparison between > migrate_pages(single 4KB page) and migrate_pages(a list of 4KB > pages). The point I wanted to make is that Yang’s approach, which > migrates a list of pages at the end of shrink_page_list(), can > achieve higher throughput than Keith’s approach, which migrates one > page at a time in the while loop inside shrink_page_list(). I look forward to seeing the patches.
