9f490b6cb1
The Asus FSB reclocking feature is also known as Super Hybrid Engine (SHE). The feature can be enabled in tuned.conf by setting the eeefsb to True. It is enabled by default in the laptop-battery-powersave profile. Signed-off-by: Jan Vcelak <jvcelak@redhat.com>
83 lines
2.4 KiB
Python
83 lines
2.4 KiB
Python
# Copyright (C) 2009 Red Hat, Inc.
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# Authors: Phil Knirsch
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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 logging, tuned_logging
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log = logging.getLogger("tuned.cputuning")
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class CPUTuning:
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config_section = "CPUTuning"
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eeefsb_control = "/sys/devices/platform/eeepc/cpufv"
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def __init__(self):
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self.latency = 100
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self.enabled = True
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self.eeefsb = False
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self.fsbreduced = False
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def init(self, config):
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log.debug("Init")
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self.config = config
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if self.config.has_option(self.config_section, "enabled"):
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self.enabled = (self.config.get(self.config_section, "enabled") == "True")
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try:
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open("/dev/cpu_dma_latency", "w")
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except:
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self.enabled = False
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if self.config.has_option(self.config_section, "eeefsb"):
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self.eeefsb = (self.config.get(self.config_section, "eeefsb") == "True")
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try:
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open(self.eeefsb_control, "w")
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except:
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self.eeefsb = False
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log.info("Module is %s" % ("enabled" if self.enabled else "disabled"))
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def cleanup(self):
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log.debug("Cleanup")
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if not self.enabled:
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return
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open("/dev/cpu_dma_latency", "w").write("100\n")
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def setTuning(self, load):
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if not self.enabled:
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return
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loadavg = load.setdefault("CPU", 0.0)
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if self.latency == 100 and loadavg < 0.2:
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log.debug("Setting latency to 999")
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self.latency = 999
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open("/dev/cpu_dma_latency", "w").write("999\n")
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if self.latency == 999 and loadavg > 0.2:
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log.debug("Setting latency to 100")
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self.latency = 100
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open("/dev/cpu_dma_latency", "w").write("100\n")
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if self.eeefsb:
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if not self.fsbreduced and loadavg < 0.4:
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open(self.eeefsb_control, "w").write("2\n")
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self.fsbreduced = True
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if self.fsbreduced and loadavg > 0.5:
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open(self.eeefsb_control, "w").write("1\n")
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self.fsbreduced = False
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_plugin = CPUTuning()
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