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Re: kern/55166: uvm_pdpolicy_clock params (anon/exec/file max/min) defaults
The following reply was made to PR kern/55166; it has been noted by GNATS.
From: Joerg Sonnenberger <joerg%bec.de@localhost>
Cc: kern-bug-people%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
Subject: Re: kern/55166: uvm_pdpolicy_clock params (anon/exec/file max/min)
Date: Sun, 12 Apr 2020 23:38:14 +0200
On Sat, Apr 11, 2020 at 04:40:00PM +0000, Izumi Tsutsui wrote:
> There parameters can be changed by sysctl(8), but initial values
> are hardcorded in uvmpdpol_init():
What about actually tuning the initial parameters on the amount of RAM
in the system? That seems much more sensible than hard-coding different
option sets in various kernels. It's not like it is going to add a lot
of (cold) code.
> Using the following sysctl vm values on dreamcast and x68k
> makes many applications (including twitter/mastodon clients)
> work as they can be used as demonstrations at conferences:
filemax seems questionable to me, the rest sound a useful default for
systems with <= 16MB RAM.
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