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[svn r58108] A hyperthreaded cpu core should only count as 1, although it is present as 2 

entries in /proc/cpuinfo.  Counting it as 2 is misleading because it is *by
far* not as efficient as two independent cores.

--HG--
branch : trunk
This commit is contained in:
arigo 2008-09-13 16:23:30 +02:00
parent bb9b0e7361
commit 2a706fc8ae
1 changed files with 20 additions and 12 deletions
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30
contrib/sysinfo.py
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@ -66,17 +66,25 @@ class RemoteInfo:
def getcpuinfo(self): def getcpuinfo(self):
if self.islinux(): if self.islinux():
return self.exreceive(""" return self.exreceive("""
numcpus = 0 # a hyperthreaded cpu core only counts as 1, although it
model = None # is present as 2 in /proc/cpuinfo. Counting it as 2 is
for line in open("/proc/cpuinfo"): # misleading because it is *by far* not as efficient as
if not line.strip(): # two independent cores.
continue cpus = {}
key, value = line.split(":") cpuinfo = {}
key = key.strip() f = open("/proc/cpuinfo")
if key == "processor": lines = f.readlines()
numcpus += 1 f.close()
elif key == "model name": for line in lines + ['']:
model = value.strip() if line.strip():
key, value = line.split(":", 1)
cpuinfo[key.strip()] = value.strip()
else:
corekey = (cpuinfo.get("physical id"),
cpuinfo.get("core id"))
cpus[corekey] = 1
numcpus = len(cpus)
model = cpuinfo.get("model name")
channel.send((numcpus, model)) channel.send((numcpus, model))
""") """)