On Wed, 21 Jun 2023 14:24:02 -0700 Mike Kravetz <mike.kravetz@xxxxxxxxxx> wrote: > This reverts commit 9425c591e06a9ab27a145ba655fb50532cf0bcc9 > > The reverted commit fixed up routines primarily used by readahead code > such that they could also be used by hugetlb. Unfortunately, this > caused a performance regression as pointed out by the Closes: tag. > > The hugetlb code which uses page_cache_next_miss will be addressed in > a subsequent patch. Often these throughput changes are caused by rather random alignment/layout changes and the code change itself was innocent. Do we have an explanation for this regression, or was it a surprise?
