From a107c2a55f94e874303a9f79540f66d6829609ad Mon Sep 17 00:00:00 2001 From: Eric Hameleers Date: Sat, 5 Sep 2020 22:04:40 +0200 Subject: DAW: grant write access to /dev/cpu_dma_latency Prevent CPU's from going into idle state to improve latency. --- make_slackware_live.sh | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/make_slackware_live.sh b/make_slackware_live.sh index 0bf22e5..0ca3c82 100755 --- a/make_slackware_live.sh +++ b/make_slackware_live.sh @@ -2196,11 +2196,14 @@ EOT fi # Allow access for 'audio' group to the high precision event timer, - # which may benefit a DAW which relies on ALSA MIDI: + # which may benefit a DAW which relies on ALSA MIDI; + # Also grant write access to /dev/cpu_dma_latency to prevent CPU's + # from going into idle state: mkdir -p ${LIVE_ROOTDIR}/etc/udev/rules.d cat < ${LIVE_ROOTDIR}/etc/udev/rules.d/40-timer-permissions.rules KERNEL=="rtc0", GROUP="audio" KERNEL=="hpet", GROUP="audio" +KERNEL=="cpu_dma_latency", GROUP="audio" EOT # Audio related sysctl settings for better realtime performance: -- cgit v1.2.3