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PR/54727 CVS commit: src/sys/uvm
The following reply was made to PR kern/54727; it has been noted by GNATS.
From: "Andrew Doran" <ad%netbsd.org@localhost>
Subject: PR/54727 CVS commit: src/sys/uvm
Date: Mon, 30 Dec 2019 18:08:38 +0000
Module Name: src
Committed By: ad
Date: Mon Dec 30 18:08:38 UTC 2019
src/sys/uvm: uvm_pdaemon.c uvm_pdaemon.h uvm_pdpolicy.h
- 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.
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