From: Nitin Gupta <nitin.m.gu...@oracle.com> Date: Tue, 22 Nov 2016 14:09:28 -0800
> Add support for using multiple hugepage sizes simultaneously > on mainline. Currently, support for 256M has been added which > can be used along with 8M pages. > > Page tables are set like this (e.g. for 256M page): > VA + (8M * x) -> PA + (8M * x) (sz bit = 256M) where x in [0, 31] > > and TSB is set similarly: > VA + (4M * x) -> PA + (4M * x) (sz bit = 256M) where x in [0, 63] > > - Testing > > Tested on Sonoma (which supports 256M pages) by running stream > benchmark instances in parallel: one instance uses 8M pages and > another uses 256M pages, consuming 48G each. > > Boot params used: > > default_hugepagesz=256M hugepagesz=256M hugepages=300 hugepagesz=8M > hugepages=10000 > > Signed-off-by: Nitin Gupta <nitin.m.gu...@oracle.com> Applied.
