55 lines
1.9 KiB
Python
55 lines
1.9 KiB
Python
import base
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import exceptions
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import tuned.logs
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import tuned.utils.commands
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import os
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log = tuned.logs.get()
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class EeePCSHEPlugin(base.Plugin):
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"""
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Plugin for tuning FSB (front side bus) speed on Asus EEE PCs with SHE (Super Hybrid Engine) support.
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"""
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def __init__(self, *args, **kwargs):
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self._control_file = "/sys/devices/platform/eeepc/cpufv"
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if not os.path.isfile(self._control_file):
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raise exceptions.NotSupportedPluginException("Plugin is not supported on your hardware.")
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super(self.__class__, self).__init__(*args, **kwargs)
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def _get_config_options(self):
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return {
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"load_threshold_normal" : 0.6,
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"load_threshold_powersave" : 0.4,
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"she_powersave" : 2,
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"she_normal" : 1,
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}
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def _instance_init(self, instance):
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instance._has_static_tuning = False
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instance._has_dynamic_tuning = True
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instance._she_mode = None
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instance._load_monitor = self._monitors_repository.create("load", None)
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def _instance_cleanup(self, instance):
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if instance._load_monitor is not None:
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self._monitors_repository.delete(instance._load_monitor)
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instance._load_monitor = None
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def _instance_update_dynamic(self, instance, device):
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load = instance._load_monitor.get_load()["system"]
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if load <= instance.options["load_threshold_powersave"]:
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self._set_she_mode(instance, "powersave")
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elif load >= instance.options["load_threshold_normal"]:
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self._set_she_mode(instance, "normal")
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def _instance_unapply_dynamic(self, instance, device):
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# FIXME: restore previous value
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self._set_she_mode(instance, "normal")
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def _set_she_mode(self, instance, new_mode):
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new_mode_numeric = int(instance.options["she_%s" % new_mode])
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if instance._she_mode != new_mode_numeric:
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log.info("new eeepc_she mode %s (%d) " % (new_mode, new_mode_numeric))
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tuned.utils.commands.write_to_file(self._control_file, "%s" % new_mode_numeric)
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self._she_mode = new_mode_numeric
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