CVSROOT: /cvs
Module name: src
Changes by: m...@cvs.openbsd.org 2022/06/30 14:28:42
Modified files:
sys/uvm : uvm_pager.c
Log message:
Reduce allocations and possible failures in uvm_pagermapin/out().
. If a direct map exists use it to map single-page allocations
. Use pmap_kenter_pa() instead of pmap_enter() in all other cases.
This speeds up file-based mmap up to 75% when I/O are performed and it
also reduces possible allocations failtures in the page daemon making
it more stable in OOM situations.
ok kettenis@, beck@
