On Wed, 2006-09-20 at 17:41 -0700, Christoph Lameter wrote: > On Wed, 20 Sep 2006, Rohit Seth wrote: > > > ...my preference is to leave it in page struct...that has non-zero cost. > > Oh. Making struct page bigger than a cacheline or not fitting exactly in a > cacheline has some costs. >
Isn't most of the architectures not defining WANT_PAGE_VIRTUAL and thus the page structure on these is not fitting cache line well. In most of these cases the additional pointer will actually make the structure 64 bytes on 64-bit machines. -rohit ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ ckrm-tech mailing list https://lists.sourceforge.net/lists/listinfo/ckrm-tech
