75 lines
2.4 KiB
Python
75 lines
2.4 KiB
Python
# Copyright (C) 2008, 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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class DiskMonitor:
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def __init__(self):
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self.devices = {}
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dnames = os.listdir("/sys/block/")
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for d in dnames:
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try:
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v = open("/sys/block/"+d+"/device/vendor").read().strip()
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except:
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v = None
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if v != "ATA" and v != "SCSI":
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continue
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self.devices[d] = {}
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self.devices[d]["new"] = ['0', '0', '0', '0', '0', '0', '0', '0', '0', '0', '0']
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self.devices[d]["max"] = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
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self.__updateStat__(d)
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self.devices[d]["max"] = [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
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print self.devices
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def __calcdiff__(self, dev):
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l = []
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for i in xrange(len(self.devices[dev]["old"])):
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l.append(int(self.devices[dev]["new"][i]) - int(self.devices[dev]["old"][i]))
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return l
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def __updateStat__(self, dev):
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l = open("/sys/block/"+dev+"/stat", "r").read()
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self.devices[dev]["old"] = self.devices[dev]["new"]
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self.devices[dev]["new"] = l.split()
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l = self.__calcdiff__(dev)
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for i in xrange(len(l)):
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if l[i] > self.devices[dev]["max"][i]:
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self.devices[dev]["max"][i] = l[i]
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def __update__(self):
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for dev in self.devices.keys():
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self.__updateStat__(dev)
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self.devices[dev]["diff"] = self.__calcdiff__(dev)
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def init(self, config):
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self.config = config
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def cleanup(self):
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pass
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def getLoad(self):
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self.__update__()
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ret = {}
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ret["DISK"] = {}
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for dev in self.devices.keys():
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ret["DISK"][dev] = {}
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ret["DISK"][dev]["READ"] = float(self.devices[dev]["diff"][1]) / float(self.devices[dev]["max"][1])
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ret["DISK"][dev]["WRITE"] = float(self.devices[dev]["diff"][5]) / float(self.devices[dev]["max"][5])
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return ret
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_plugin = DiskMonitor()
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