CVS commit: src/sys/uvm

["Andrew Doran" <ad%netbsd.org@localhost>]

Module Name:    src
Committed By:   ad
Date:           Tue Dec 31 17:56:16 UTC 2019

Modified Files:
        src/sys/uvm: uvm_page.h

Log Message:
struct vm_page: cluster fields most heavily used by the page allocator and
uvmpdpol at the start of the structure, so that while under global lock we
need only touch one cache line for each vm_page.  There is still the problem
of vm_page not being aligned, but this seems to drop lock wait time for
(a modified) uvmpdpol and the allocator by 20-30% in a quick test.


To generate a diff of this commit:
cvs rdiff -u -r1.91 -r1.92 src/sys/uvm/uvm_page.h

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.