285 lines
8.9 KiB
Python
Executable file
285 lines
8.9 KiB
Python
Executable file
#!/usr/bin/python -Es
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#
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# Copyright (C) 2012 Red Hat, Inc.
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# Authors: Jan Kaluza <jkaluza@redhat.com>
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#
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# This program is free software; you can redistribute it and/or
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# modify it under the terms of the GNU General Public License
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# as published by the Free Software Foundation; either version 2
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# of the License, or (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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#
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import os
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import sys
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import tempfile
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import shutil
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import argparse
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from subprocess import *
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from HTMLParser import HTMLParser
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from htmlentitydefs import name2codepoint
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SCRIPT_SH = """#!/bin/sh
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. /usr/lib/tuned/functions
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start() {
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%s
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return 0
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}
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stop() {
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%s
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return 0
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}
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process $@
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"""
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TUNED_CONF_PROLOG = "# Automatically generated by powertop2tuned tool\n\n"
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TUNED_CONF_INCLUDE = """[main]
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%s\n
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"""
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TUNED_CONF_EPILOG="""\n[powertop_script]
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type=script
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replace=1
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script=script.sh
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"""
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class PowertopHTMLParser(HTMLParser):
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def __init__(self, enable_tunings):
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HTMLParser.__init__(self)
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self.inProperTable = False
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self.inScript = False
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self.lastStartTag = ""
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self.tdCounter = 0
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self.lastDesc = ""
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self.data = ""
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self.currentScript = ""
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if enable_tunings:
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self.prefix = ""
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else:
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self.prefix = "#"
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self.plugins = {}
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def getParsedData(self):
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return self.data
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def getPlugins(self):
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return self.plugins
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def handle_starttag(self, tag, attrs):
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self.lastStartTag = tag
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if self.lastStartTag == "div" and dict(attrs)["id"] == "tuning":
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self.inProperTable = True
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if self.inProperTable and tag == "td":
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self.tdCounter += 1
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def parse_command(self, command):
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prefix = ""
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command = command.strip()
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if command[0] == '#':
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prefix = "#"
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command = command[1:]
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if command.startswith("echo") and command.find("/proc/sys") != -1:
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splitted = command.split("'")
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value = splitted[1]
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path = splitted[3]
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path = path.replace("/proc/sys/", "").replace("/", ".")
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self.plugins.setdefault("sysfs", "[sysfs]\ndynamic_tuning=0\n")
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self.plugins["sysfs"] += "#%s\n%s%s=%s\n\n" % (self.lastDesc, prefix, path, value)
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# TODO: plugins/plugin_sysfs.py doesn't support this so far, it has to be implemented to
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# let it work properly.
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elif command.startswith("echo") and (command.find("'/sys/") != -1 or command.find("\"/sys/") != -1):
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splitted = command.split("'")
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value = splitted[1]
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path = splitted[3]
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if path == "/sys/module/snd_hda_intel/parameters/power_save":
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self.plugins.setdefault("audio", "[audio]\ndynamic_tuning=0\n")
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self.plugins["audio"] += "#%s\n%shda_intel_powersave=1\n" % (self.lastDesc, prefix)
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else:
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self.plugins.setdefault("sysfs", "[sysfs]\ndynamic_tuning=0\n")
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self.plugins["sysfs"] += "#%s\n%s%s=%s\n\n" % (self.lastDesc, prefix, path, value)
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elif command.startswith("ethtool -s ") and command.endswith("wol d;"):
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self.plugins.setdefault("net", "[net]\ndynamic_tuning=0\n")
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self.plugins["net"] += "#%s\n%swake_on_lan=0\n" % (self.lastDesc, prefix)
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else:
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return False
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return True
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def handle_endtag(self, tag):
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if self.inProperTable and tag == "table":
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self.inProperTable = False
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if tag == "tr":
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self.tdCounter = 0
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if self.inScript:
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#print self.currentScript
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self.inScript = False
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# Command is not handled, so just store it in the script
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if not self.parse_command(self.currentScript.split("\n")[-1]):
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self.data += self.currentScript + "\n\n"
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def handle_entityref(self, name):
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if self.inScript:
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self.currentScript += unichr(name2codepoint[name])
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def handle_data(self, data):
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prefix = self.prefix
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if self.inProperTable and self.tdCounter == 1:
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self.lastDesc = data
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if self.lastDesc.lower().find("autosuspend") != -1 and (self.lastDesc.lower().find("keyboard") != -1 or self.lastDesc.lower().find("mouse") != -1):
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self.lastDesc += "\n\t# WARNING: For some devices, uncommenting this command can disable the device."
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prefix = "#"
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if (self.inProperTable and self.tdCounter == 2) or self.inScript:
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self.tdCounter = 0
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if not self.inScript:
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self.currentScript += "\t# " + self.lastDesc + "\n"
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self.currentScript += "\t" + prefix + data.strip()
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self.inScript = True
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else:
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self.currentScript += data.strip()
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class PowertopProfile:
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BAD_PRIVS = 100
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PARSING_ERROR = 101
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BAD_SCRIPTSH = 102
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def __init__(self, output, name = ""):
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self.name = name
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self.output = output
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def currentActiveProfile(self):
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proc = Popen(["tuned-adm", "active"], stdout=PIPE)
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output = proc.communicate()[0]
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if output and output.find("Current active profile: ") == 0:
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return output[len("Current active profile: "):output.find("\n")]
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return "unknown"
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def checkPrivs(self):
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myuid = os.geteuid()
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if myuid != 0:
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print >> sys.stderr, 'Run this program as root'
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return False
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return True
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def generateHTML(self):
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print "Running PowerTOP, please wait..."
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proc = Popen("LANG= powertop --html=/tmp/powertop --time=1", stdout=PIPE, stderr=PIPE, shell=True)
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output = proc.communicate()[1]
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if proc.returncode != 0:
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return ret
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prefix = "PowerTOP outputing using base filename "
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if output.find(prefix) == -1:
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return -1
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name = output[output.find(prefix)+len(prefix):-1]
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#print "Parsed filename=", [name]
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return name
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def parseHTML(self, enable_tunings):
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f = open(self.name)
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parser = PowertopHTMLParser(enable_tunings)
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parser.feed(f.read())
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f.close()
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return parser.getParsedData(), parser.getPlugins()
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def generateShellScript(self, profile, data):
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print "Generating shell script", os.path.join(self.output, "script.sh")
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f = open(os.path.join(self.output, "script.sh"), "w")
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f.write(SCRIPT_SH % (data, ""))
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os.fchmod(f.fileno(), 0755)
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f.close()
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return True
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def generateTunedConf(self, profile, new_profile, plugins):
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print "Generating Tuned config file", os.path.join(self.output, "tuned.conf")
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f = open(os.path.join(self.output, "tuned.conf"), "w")
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f.write(TUNED_CONF_PROLOG)
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if not new_profile:
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f.write(TUNED_CONF_INCLUDE % ("include=" + profile))
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for plugin in plugins.values():
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f.write(plugin + "\n")
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f.write(TUNED_CONF_EPILOG)
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f.close()
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def generate(self, new_profile, enable_tunings):
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generated_html = False
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if len(self.name) == 0:
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generated_html = True
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if not self.checkPrivs():
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return self.BAD_PRIVS
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name = self.generateHTML()
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if isinstance(name, int):
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return name
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self.name = name
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data, plugins = self.parseHTML(enable_tunings)
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if generated_html:
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os.unlink(self.name)
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if len(data) == 0 and len(plugins) == 0:
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print >> sys.stderr, 'Your Powertop version is incompatible (maybe too old) or the generated HTML output is malformed'
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return self.PARSING_ERROR
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profile = self.currentActiveProfile()
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if not os.path.exists(self.output):
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os.makedirs(self.output)
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if not self.generateShellScript(profile, data):
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return self.BAD_SCRIPTSH
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self.generateTunedConf(profile, new_profile, plugins)
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return 0
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(description='Creates Tuned profile from Powertop HTML output.')
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parser.add_argument('profile', metavar='profile_name', type=unicode, nargs='?', help='Name for the profile to be written.')
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parser.add_argument('-i', '--input', metavar='input_html', type=unicode, help='Path to Powertop HTML report. If not given, it is generated automatically.')
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parser.add_argument('-o', '--output', metavar='output_directory', type=unicode, help='Directory where the profile will be written, default is /etc/tuned/profile_name directory.')
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parser.add_argument('-n', '--new-profile', action='store_true', help='Creates new profile, otherwise it merges (include) your current profile.')
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parser.add_argument('-f', '--force', action='store_true', help='Overwrites the output directory if it already exists.')
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parser.add_argument('--enable', action='store_true', help='Enable all tunings (not recommended). Even with this enabled tunings known to be harmful (like USB_AUTOSUSPEND) won''t be enabled.')
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args = parser.parse_args()
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args = vars(args)
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if not args['profile'] and not args['output']:
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print >> sys.stderr, 'You have to specify the profile_name or output directory using the --output argument.'
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parser.print_help()
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sys.exit(-1)
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if not args['output']:
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args['output'] = "/etc/tuned"
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if args['profile']:
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args['output'] = os.path.join(args['output'], args['profile'])
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if not args['input']:
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args['input'] = ''
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if os.path.exists(args['output']) and not args['force']:
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print >> sys.stderr, 'Output directory already exists, use --force to overwrite it.'
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sys.exit(-1)
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p = PowertopProfile(args['output'], args['input'])
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sys.exit(p.generate(args['new_profile'], args['enable']))
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