Module Name: src
Committed By: nia
Date: Fri Jan 24 18:58:46 UTC 2020
Modified Files:
src/sys/arch/amd64/conf: GENERIC
Log Message:
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:
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.
To generate a diff of this commit:
cvs rdiff -u -r1.558 -r1.559 src/sys/arch/amd64/conf/GENERIC
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/amd64/conf/GENERIC
diff -u src/sys/arch/amd64/conf/GENERIC:1.558 src/sys/arch/amd64/conf/GENERIC:1.559
--- src/sys/arch/amd64/conf/GENERIC:1.558 Mon Jan 20 18:38:19 2020
+++ src/sys/arch/amd64/conf/GENERIC Fri Jan 24 18:58:46 2020
@@ -1,4 +1,4 @@
-# $NetBSD: GENERIC,v 1.558 2020/01/20 18:38:19 thorpej Exp $
+# $NetBSD: GENERIC,v 1.559 2020/01/24 18:58:46 nia Exp $
#
# GENERIC machine description file
#
@@ -22,7 +22,7 @@ include "arch/amd64/conf/std.amd64"
options INCLUDE_CONFIG_FILE # embed config file in kernel binary
-#ident "GENERIC-$Revision: 1.558 $"
+#ident "GENERIC-$Revision: 1.559 $"
maxusers 64 # estimated number of users
@@ -55,6 +55,9 @@ maxusers 64 # estimated number of users
options INSECURE # disable kernel security levels - X needs this
+options AUDIO_BLK_MS=4 # make software with low latency needs performant
+ # no substantial CPU overhead on this platform
+
options RTC_OFFSET=0 # hardware clock is this many mins. west of GMT
options NTP # NTP phase/frequency locked loop
