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functions: optimisation of 'cpus_online' built-in function

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Now it operates over CPU sets parsed from /sys/devices/system/cpu/online
and it no more checks each CPU from the list individually for its online
status.

Signed-off-by: Jaroslav Škarvada <jskarvad@redhat.com>
This commit is contained in:
Jaroslav Škarvada 2015-06-08 14:11:31 +02:00
parent b7981e7b5e
commit 246854f524
1 changed files with 3 additions and 2 deletions
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5
tuned/profiles/functions/function_cpus_online.py
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@ -17,5 +17,6 @@ class cpus_online(base.Function):
def execute(self, args):
if not super(self.__class__, self).execute(args):
return None
cpus = ",".join(args)
return ",".join(filter(lambda cpu: self._cmd.is_cpu_online(cpu), cpus.split(",")))
cpus = self._cmd.cpulist_unpack(",".join(args))
online = self._cmd.cpulist_unpack(self._cmd.read_file("/sys/devices/system/cpu/online"))
return ",".join(str(v) for v in set(cpus).intersection(set(online)))