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PR/54210 CVS commit: src/sys/uvm

The following reply was made to PR kern/54210; it has been noted by GNATS.

From: "Andrew Doran" <>
Subject: PR/54210 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
 Modified Files:
 	src/sys/uvm: uvm_pdaemon.c uvm_pdaemon.h uvm_pdpolicy.h
 	    uvm_pdpolicy_clock.c uvm_pdpolicy_clockpro.c
 Log Message:
 - 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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