saving uncommitted changes in /etc prior to emerge run

hprofile/profiles/disk/ata.bash

@@ -0,0 +1,9 @@
+#
+# disk/ata.bash
+#
+
+echo /sys/devices/pci*/*/ata*/host*/target*/*/block/*(sd[a-z])
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/default

@@ -0,0 +1 @@
+adp

hprofile/profiles/disk/post-start

@@ -0,0 +1,22 @@
+#
+# disk/post-start
+#
+
+function _ata {
+	source "$ata_bash"
+}
+
+for dev in $(_ata); do
+    echo cfq  >$dev/queue/scheduler
+    echo 0    >$dev/queue/iosched/slice_idle
+    echo 64   >$dev/queue/iosched/quantum
+    # more opitmizations with ncq
+    echo 1024 >$dev/queue/nr_requests
+    echo 2    >$dev/device/queue_depth
+done
+
+unset _ata dev
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/profiles

@@ -0,0 +1,4 @@
+bat
+adp
+dyn
+quiet

hprofile/profiles/disk/ptest

@@ -0,0 +1,17 @@
+#
+# disk/ptest
+#
+
+local state="$(echo /sys/class/power_supply/A*)"
+
+if test -n "$state" -a -r "$state"; then
+	state=$(< "$state")
+	case "$state" in
+		(1) echo "adp";;
+		(0) echo "bat";;
+	esac
+fi
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/scripts/adp.start

@@ -0,0 +1,21 @@
+#
+# disk/scripts/adp.start
+#
+
+function _usb {
+	source "$usb_bash"
+}
+_usb
+
+function _ata {
+	source "$ata_bash"
+}
+ata=$(_ata)
+
+[[ "$ata" ]] && hdparm -q -S120 -B230 -M254 $ata
+
+unset _ata _usb ata
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/scripts/bat.start

@@ -0,0 +1,21 @@
+#
+# disk/scripts/bat.start
+#
+
+function _usb {
+	source "$usb_bash"
+}
+_usb
+
+function _ata {
+	source "$ata_bash"
+}
+ata=$(_ata)
+
+[[ "$ata" ]] && hdparm -q -S120 -B210 -M230 $ata
+
+unset _ata _usb ata
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/scripts/dyn.start

@@ -0,0 +1,21 @@
+#
+# disk/scripts/dyn.start
+#
+
+function _usb {
+	source "$usb_bash"
+}
+_usb
+
+function _ata {
+	source "$ata_bash"
+}
+ata=$(_ata)
+
+[[ "$ata" ]] && hdparm -q -S180 -B254 -M254 $ata
+
+unset _ata _usb ata
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/scripts/quiet.start

@@ -0,0 +1,21 @@
+#
+# disk/scripts/quiet.start
+#
+
+function _usb {
+	source "$usb_bash"
+}
+_usb
+
+function _ata {
+	source "$ata_bash"
+}
+ata=$(_ata)
+
+[[ "$ata" ]] && hdparm -q -S120 -B200 -M200 $ata
+
+unset _ata _usb ata
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#

hprofile/profiles/disk/usb.bash

@@ -0,0 +1,15 @@
+#
+# disk/usb.bash
+#
+
+for dev in /sys/devices/pci*/*/usb*/*/*/host*/target*/*/block/*(sd[a-z])
+do
+	case "$(< $dev/removable)" in
+		(1) echo noop >$dev/queue/scheduler;;
+		(0) echo cfq >$dev/queue/scheduler;;
+	esac
+done
+
+#
+# vim:fenc=utf-8:ft=sh:ci:pi:sts=0:sw=4:ts=4:
+#