nikon/tuned
1
0
Fork 0
Code Activity Actions

cpu_multicore_powersav

Browse source
This commit is contained in:
Jan Kaluza 2012-04-23 12:50:08 +02:00
parent 32170dbece
commit 0ef4c47e4d
1 changed files with 35 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

36
tuned/plugins/plugin_cpu.py
View file

@ -31,10 +31,12 @@ class CPULatencyPlugin(tuned.plugins.Plugin):
"latency_low" : 100,
"latency_high" : 1000,
"cpu_governor" : "",
"cpu_multicore_powersave" : "",
}
def cleanup(self):
self._revert_cpu_governor()
self._revert_cpu_multicore_powersave()
tuned.monitors.get_repository().delete(self._load_monitor)
os.close(self._cpu_latency_fd)
@ -42,6 +44,7 @@ class CPULatencyPlugin(tuned.plugins.Plugin):
def update_tuning(self):
if not self._commands_run:
self._apply_cpu_governor()
self._apply_cpu_multicore_powersave()
self._commands_run = True
load = self._load_monitor.get_load()["system"]
@ -86,6 +89,37 @@ class CPULatencyPlugin(tuned.plugins.Plugin):
tuned.utils.commands.execute(["cpupower", "frequency-set", "-g", storage.data["cpu"]["cpu_governor"]])
del storage.data["cpu"]["cpu_governor"]
def _apply_cpu_multicore_powersave(self):
self._revert_cpu_multicore_powersave()
if len(self._options["cpu_multicore_powersave"]) == 0:
return False
storage = tuned.utils.storage.Storage.get_instance()
old_value = tuned.utils.commands.execute(["cpupower", "info", "-m"])
if old_value.find("not supported") != -1:
log.info("cpu_multicore_powersave is not supported by this system")
return False
if old_value.startswith("System's multi core scheduler setting"):
try:
old_value = old_value.split(' ')[:-1][:-1] # get "2\n" and remove '\n'
storage.data["cpu"]["cpu_multicore_powersave"] = old_value
storage.save()
except IndexError:
pass
tuned.utils.commands.execute(["cpupower", "set", "-m", storage.data["cpu"]["cpu_multicore_powersave"]])
return True
def _revert_cpu_multicore_powersave(self):
storage = tuned.utils.storage.Storage.get_instance()
if storage.data["cpu"].has_key("cpu_multicore_powersave"):
tuned.utils.commands.execute(["cpupower", "set", "-m", storage.data["cpu"]["cpu_multicore_powersave"]])
del storage.data["cpu"]["cpu_multicore_powersave"]