CVS commit: [netbsd-9] src/sys

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Mon Jan 27 07:06:02 UTC 2020

Modified Files:
        src/sys/arch/amd64/conf [netbsd-9]: GENERIC
        src/sys/arch/evbarm/conf [netbsd-9]: GENERIC GENERIC64
        src/sys/dev [netbsd-9]: files.audio
        src/sys/dev/audio [netbsd-9]: audiodef.h

Log Message:
Pull up following revision(s) (requested by nia in ticket #657):

        sys/dev/files.audio: revision 1.13
        sys/dev/files.audio: revision 1.14
        sys/arch/amd64/conf/GENERIC: revision 1.559
        sys/arch/evbarm/conf/GENERIC: revision 1.71
        sys/arch/evbarm/conf/GENERIC64: revision 1.134
        sys/dev/audio/audiodef.h: revision 1.8

Set AUDIO_BLK_MS=4 - unlikely to cause significant overhead on non-m68k.

Several of us have been setting this in /etc/sysctl.conf for months, to
get better performance from applications that require synced audio, etc.
It's also mentioned as a good value with low overhead on most archs here:
href="https://mail-index.netbsd.org/tech-kern/2019/12/07/msg025830.html

We could probably go lower, but this is low enough to make most/all
software run well, removing frame drops. It's also low enough to get
emulators/mednafen to stop complaining in the console.

defopt AUDIO_BLK_MS

Follow amd64 and set AUDIO_BLK_MS=4 by default

defopt -> defparam (oops)


To generate a diff of this commit:
cvs rdiff -u -r1.531.2.7 -r1.531.2.8 src/sys/arch/amd64/conf/GENERIC
cvs rdiff -u -r1.48.2.5 -r1.48.2.6 src/sys/arch/evbarm/conf/GENERIC
cvs rdiff -u -r1.103.2.7 -r1.103.2.8 src/sys/arch/evbarm/conf/GENERIC64
cvs rdiff -u -r1.12 -r1.12.2.1 src/sys/dev/files.audio
cvs rdiff -u -r1.7 -r1.7.2.1 src/sys/dev/audio/audiodef.h

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