On Sat, Jun 23, 2018 at 08:10:10AM +0000, Jeff Roberson wrote: > Author: jeff > Date: Sat Jun 23 08:10:09 2018 > New Revision: 335579 > URL: https://svnweb.freebsd.org/changeset/base/335579 > > Log: > Sort uma_zone fields according to 64 byte cache line with adjacent line > prefetch on 64bit architectures. Prior to this, two lines were needed > for the fast path and each line may fetch an unused adjacent neighbor. > - Move fields used by the fast path into a single line. > - Move constants into the adjacent line which is mostly used for > the spare bucket alloc 'medium path'. > - Unpad the mtx which is only used by the fast path and place it in > a line with rarely used data. This aligns the cachelines better and > eliminates 128 bytes of wasted space. > > This gives a 45% improvement on a will-it-scale test on a 24 core machine.
Can this commint mergered to stable/11? Or this commit depends on other commits? _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"