# HG changeset patch
# User Christophe Lincoln <pankso@slitaz.org>
# Date 1397794781 -7200
# Node ID 98696048c24a6026d95c520cff0342b7715d8c44
# Parent  59d16a648604720a9bdf5f1daa2268179091c565
rpi: some nice optimization via sysctl.conf, fstab (nodiratime), /etc/modprobe.d/rpi-blacklist.conf and up cgi-adm plugin

diff -r 59d16a648604 -r 98696048c24a cgi-adm/data/style.css
--- a/cgi-adm/data/style.css	Fri Apr 18 04:30:52 2014 +0200
+++ b/cgi-adm/data/style.css	Fri Apr 18 06:19:41 2014 +0200
@@ -3,7 +3,7 @@
 html { height: 102%; }
 body { margin: 0; font-size: 90%; }
 h1 { color: #4d4d4d; }
-h2 { color: #666; font-size: 120%; }
+h2 { color: #666; font-size: 140%; }
 h1, h2 { border-bottom: 1px dashed #afafaf; padding: 0 0 5px 0; }
 a:hover { text-decoration: none; }
 li { list-style-type: square; color: #4d4d4d; }
diff -r 59d16a648604 -r 98696048c24a rpi/cgi-adm/plugins/rpi_config/rpi_config.cgi
--- a/rpi/cgi-adm/plugins/rpi_config/rpi_config.cgi	Fri Apr 18 04:30:52 2014 +0200
+++ b/rpi/cgi-adm/plugins/rpi_config/rpi_config.cgi	Fri Apr 18 06:19:41 2014 +0200
@@ -63,6 +63,7 @@
 		html_footer && exit 0 ;;
 	
 	*\ rpi_config\ *)
+		blacklist="/etc/modprebe.d/rpi-blacklist.conf"
 		html_header "Raspberry Pi"
 		cat << EOT
 <h1>SliTaz Raspberry Pi</h1>
@@ -101,6 +102,18 @@
 <div class="button">
 	<a href="$script?editor&amp;file=/boot/config.txt">Edit config.txt</a>
 </div>
+
+<h2>Blacklisted Kernel modules</h2>
+<p>
+	List of the Linux Kernel modules that should not be loaded on boot
+	time to save resource and speed up you Raspberry Pi.
+</p>
+<pre>
+$(cat $blacklist 2>/dev/null)
+</pre>
+<div class="button">
+	<a href="$script?editor&amp;file=$blacklist">Edit $(basename $blacklist)</a>
+</div>
 EOT
 	
 		html_footer && exit 0 ;;
diff -r 59d16a648604 -r 98696048c24a rpi/cgi-adm/plugins/rpi_gpio/rpi_gpio.cgi
--- a/rpi/cgi-adm/plugins/rpi_gpio/rpi_gpio.cgi	Fri Apr 18 04:30:52 2014 +0200
+++ b/rpi/cgi-adm/plugins/rpi_gpio/rpi_gpio.cgi	Fri Apr 18 06:19:41 2014 +0200
@@ -11,6 +11,13 @@
 		cat << EOT
 <h1>Raspberry Pi GPIO pins</h1>
 
+<p>
+	The R-Pi offers GPIO lower-level interfaces intended to connect 
+	more directly with chips and subsystem modules. Documentation on the:
+	<a href="http://elinux.org/RPi_Low-level_peripherals">Official Wiki</a>
+</p>
+
+<h2>$sysfs</h2>
 <pre>
 $(ls $sysfs)
 </pre>
diff -r 59d16a648604 -r 98696048c24a rpi/rootfs/etc/fstab
--- a/rpi/rootfs/etc/fstab	Fri Apr 18 04:30:52 2014 +0200
+++ b/rpi/rootfs/etc/fstab	Fri Apr 18 06:19:41 2014 +0200
@@ -1,10 +1,10 @@
 # /etc/fstab: Slitaz ARM static filesystems.
 #
-proc              /proc       proc     defaults             0    0
-sysfs             /sys        sysfs    defaults             0    0
-devpts            /dev/pts    devpts   rw,gid=5,mode=0620   0    0
-tmpfs             /dev/shm    tmpfs    defaults             0    0
-tmpfs             /var/lock   tmpfs    defaults             0    0
-/dev/mmcblk0p1    /boot       vfat     noatime              1    2
-/dev/mmcblk0p2    swap        swap     defaults             0    0
-/dev/mmcblk0p3    /           auto     noatime              0    1
+proc              /proc       proc     defaults                0    0
+sysfs             /sys        sysfs    defaults                0    0
+devpts            /dev/pts    devpts   rw,gid=5,mode=0620      0    0
+tmpfs             /dev/shm    tmpfs    defaults                0    0
+tmpfs             /var/lock   tmpfs    defaults                0    0
+/dev/mmcblk0p1    /boot       vfat     noatime,nodiratime      1    2
+/dev/mmcblk0p2    swap        swap     defaults                0    0
+/dev/mmcblk0p3    /           auto     noatime,nodiratime      0    1
diff -r 59d16a648604 -r 98696048c24a rpi/rootfs/etc/modprobe.d/rpi-blacklist.conf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rpi/rootfs/etc/modprobe.d/rpi-blacklist.conf	Fri Apr 18 06:19:41 2014 +0200
@@ -0,0 +1,8 @@
+# Kernel modules blacklist to save SliTaz R-Pi resources and memory
+
+# Blacklist spi and i2c modules
+blacklist spi-bcm2708
+blacklist i2c-bcm2708
+
+# Blacklist ipv6 to speed up networking
+blacklist ipv6
diff -r 59d16a648604 -r 98696048c24a rpi/rootfs/etc/sysctl.conf
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/rpi/rootfs/etc/sysctl.conf	Fri Apr 18 06:19:41 2014 +0200
@@ -0,0 +1,12 @@
+# /etc/sysctl.conf: Kernel sysctl configuration file for Linux
+#
+# Optimized to save Raspberry Pi resource
+
+# Better usage of the swap memory
+vm.swappiness=100
+
+# Purge cached block devices before cached filesystem entries
+vm.vfs_cache_pressure=50
+
+# Most users will not need ipv6: disable to speed up networking
+net.ipv6.conf.all.disable_ipv6=1