CVS commit: src/sys/uvm

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

Module Name:    src
Committed By:   ad
Date:           Mon Dec 30 18:08:38 UTC 2019

Modified Files:
        src/sys/uvm: uvm_pdaemon.c uvm_pdaemon.h uvm_pdpolicy.h
            uvm_pdpolicy_clock.c uvm_pdpolicy_clockpro.c

Log Message:
pagedaemon:

- Use marker pages to keep place in the queue when scanning, rather than
  relying on assumptions.

- In uvmpdpol_balancequeue(), lock the object once instead of twice.

- When draining pools, the situation is getting desperate, but try to avoid
  saturating the system with xcall, lock and interrupt activity by sleeping
  for 1 clock tick if being continually awoken and all pools have been
  cycled through at least once.

- Pause & resume the freelist cache during pool draining.

PR kern/54209: NetBSD 8 large memory performance extremely low
PR kern/54210: NetBSD-8 processes presumably not exiting
PR kern/54727: writing a large file causes unreasonable system behaviour


To generate a diff of this commit:
cvs rdiff -u -r1.118 -r1.119 src/sys/uvm/uvm_pdaemon.c
cvs rdiff -u -r1.17 -r1.18 src/sys/uvm/uvm_pdaemon.h
cvs rdiff -u -r1.4 -r1.5 src/sys/uvm/uvm_pdpolicy.h
cvs rdiff -u -r1.23 -r1.24 src/sys/uvm/uvm_pdpolicy_clock.c
cvs rdiff -u -r1.19 -r1.20 src/sys/uvm/uvm_pdpolicy_clockpro.c

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