nightmorph 09/06/14 22:55:18
Modified: gentoo-amd64-faq.xml
Log:
the hell with using cpudyn. it's antiquated, outdated, and a bitch to configure. now using cpufrequtils, which is extremely simple. also updated the kernel config, as it was completely outdated with recent kernels. fortunately, most of these options should already be set in the default config, so users won't have to change much. plus it works better for em64t users, too. less focused exclusively on AMD chips
Revision Changes Path
1.35 xml/htdocs/doc/en/gentoo-amd64-faq.xml
file : http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml?rev=1.35&view=markup
plain: http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml?rev=1.35&content-type=text/plain
diff : http://sources.gentoo.org/viewcvs.py/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml?r1=1.34&r2=1.35
Index: gentoo-amd64-faq.xml
===================================================================
RCS file: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml,v
retrieving revision 1.34
retrieving revision 1.35
diff -u -r1.34 -r1.35
--- gentoo-amd64-faq.xml 13 Jun 2009 07:38:31 -0000 1.34
+++ gentoo-amd64-faq.xml 14 Jun 2009 22:55:17 -0000 1.35
@@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE guide SYSTEM "/dtd/guide.dtd">
-<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml,v 1.34 2009/06/13 07:38:31 nightmorph Exp $ -->
+<!-- $Header: /var/cvsroot/gentoo/xml/htdocs/doc/en/gentoo-amd64-faq.xml,v 1.35 2009/06/14 22:55:17 nightmorph Exp $ -->
<guide link="/doc/en/gentoo-amd64-faq.xml">
<title>Gentoo Linux/AMD64 Frequently Asked Questions</title>
@@ -29,8 +29,8 @@
<!-- See http://creativecommons.org/licenses/by-sa/2.5 -->
<license/>
-<version>1.25</version>
-<date>2009-06-13</date>
+<version>1.26</version>
+<date>2009-06-14</date>
<faqindex>
<title>Questions</title>
@@ -224,7 +224,7 @@
</body>
</section>
<section id="coolnquiet">
-<title>How do I use Cool'n'Quiet/PowerNow features?</title>
+<title>How do I use Cool'n'Quiet/PowerNow/SpeedStep features?</title>
<body>
<p>
@@ -232,31 +232,38 @@
to enable the features below:
</p>
-<pre caption="Kernel options for Cool'n'Quiet/PowerNow">
+<pre caption="Kernel options for Cool'n'Quiet/PowerNow/SpeedStep">
Power management options --->
[*] Power Management support
-CPU Frequency scaling --->
+ [*] ACPI (Advanced Configuration and Power Interface) Support --->
+ <*> Processor
+ <*> Thermal Zone
+ CPU Frequency scaling --->
[*] CPU Frequency scaling
- [*] CPU frequency table helpers
- [*] AMD Opteron/Athlon64 PowerNow!
+ Default CPUFreq governor (ondemand) --->
+ -*- 'performance' governor
+ <*> 'userspace' governor for userspace frequency scaling
+ -*- 'ondemand' cpufreq policy governor
+ <*> ACPI Processor P-States driver
+ <*> AMD Opteron/Athlon64 PowerNow!
+-*- CPU idle PM support
</pre>
<p>
-Then <c>emerge cpudyn</c> and edit <path>/etc/conf.d/cpudyn</path> with your
-favorite editor.
+Then <c>emerge cpufrequtils</c> and edit <path>/etc/conf.d/cpufrequtils</path>
+with your favorite editor.
</p>
-<pre caption="Example of /etc/conf.d/cpudyn">
-INTERVAL=1
-CPU_UP=0.5
-CPU_DOWN=0.9
-THROTTLING_LOW=7
-CPUFREQ_25="/sys/devices/system/cpu/cpu0/cpufreq /sysfs/devices/system/cpu/cpu0/cpufreq"
-CPUFREQ_ACPI="/proc/acpi/processor/CPU0/throttling"
+<pre caption="Example of /etc/conf.d/cpufrequtils">
+# Options when starting cpufreq (given to the 'cpufreq-set' program)
+START_OPTS="--governor ondemand"
+
+# Options when stopping cpufreq (given to the 'cpufreq-set' program)
+STOP_OPTS="--governor performance"
</pre>
<p>
-Now you only have to run <c>rc-update add cpudyn default</c> to make sure it is
+Now you only have to run <c>rc-update add cpufrequtils boot</c> to make sure it is
started every time you boot.
</p>
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