On December 11, 2015, Dan Ritter wrote: >Normally your system keeps track of memory in 4KB pages. They're >analogous to filesystem blocks. [...] A hugepage is a 2MB page.
Dan, thanks for a beautiful explanation. I really appreciate it. >In the 2.x kernel series where they were invented, hugepages had >to be turned on explicitly (there's a sysctl) and applications >had to request them. Hmm... when I upgraded from 14.04 to 15.10, this included a move from a 3.x kernel to a 4.x kernel. Perhaps transparent hugepages got enabled by default in 4.x. -- Dan Barrett [email protected] _______________________________________________ Discuss mailing list [email protected] http://lists.blu.org/mailman/listinfo/discuss
