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author Eric Hameleers <alien@slackware.com>2021-10-28 21:59:20 +0200
committer Eric Hameleers <alien@slackware.com>2021-10-28 21:59:20 +0200
commit0de6ea0d13af189068d2cf816a975b6c4f170259 (patch)
treeea6dc91f9059a53cc0c50b50bd8000bf5632bc2c /make_slackware_live.sh
parent60ea9f2a58495a910a2bed94c1296e4fad489b3a (diff)
downloadliveslak-0de6ea0d13af189068d2cf816a975b6c4f170259.tar.gz
liveslak-0de6ea0d13af189068d2cf816a975b6c4f170259.tar.xz
DAW: enable full pre-emptive mode in the kernel
Note: this was enabled in kernel 5.14.15 in Slackware-current. On older / non-preemptive kernels the above will do nothing.
Diffstat (limited to 'make_slackware_live.sh')
-rwxr-xr-xmake_slackware_live.sh10
1 files changed, 10 insertions, 0 deletions
diff --git a/make_slackware_live.sh b/make_slackware_live.sh
index c205986..13fba59 100755
--- a/make_slackware_live.sh
+++ b/make_slackware_live.sh
@@ -2710,6 +2710,16 @@ fs.inotify.max_user_watches = 524288
vm.swappiness = 10
EOT
fi
+ # Enable full preemption on boot:
+ cat <<EOT >> ${LIVE_ROOTDIR}/etc/rc.d/rc.local
+
+# Enable full preemption model in the kernel
+# (possible values to use are 'none', 'voluntary', 'full'):
+mount -t debugfs none /sys/kernel/debug
+echo full > /sys/kernel/debug/sched/preempt
+umount /sys/kernel/debug
+
+EOT
# # This would benefit a DAW, but if the user runs the Live OS on a laptop,
# # she might want to decide about this herself: