115 lines
3.0 KiB
Python
115 lines
3.0 KiB
Python
##!/usr/bin/env python
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# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (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 St, Fifth Floor, Boston, MA 02110-1301 USA
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import os
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import sys
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import gtk
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import string
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import gobject
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import cairo
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import procmem
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from graphics.frequency import HorizontalGraphic
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class CPU_Usage:
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_CPU_HZ = 0
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_last_jiffies = 0
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_times = 0
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def __init__(self):
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self._CPU_HZ = os.sysconf(2)
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def _get_CPU_data(self):
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# Uptime info
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stat_file = "/proc/stat"
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try:
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infile = file(stat_file, "r")
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except:
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print "Error trying uptime file"
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return -1
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stat_line = infile.readline()
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cpu_info = string.split(stat_line, ' ')
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infile.close()
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return cpu_info
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def _get_CPU_usage(self):
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cpu_info = self._get_CPU_data()
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used_jiffies = (int(cpu_info[2]) + int(cpu_info[3]) + int(cpu_info[4]))
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if self._times ==0:
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self._last_jiffies = used_jiffies
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self._times +=1
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return 0
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new_ujiffies = (used_jiffies - self._last_jiffies)
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new_ajiffies = ((self.frequency/1000) * self._CPU_HZ)
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if new_ajiffies <= 0:
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pcpu = 0.0
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else:
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pcpu = ((new_ujiffies*100)/new_ajiffies)
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if pcpu >100:
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pcpu = 100
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self._times +=1
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self._last_jiffies = used_jiffies
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return pcpu
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class XO_CPU(gtk.Frame):
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_frequency_timer = 1
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def __init__(self):
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gtk.Frame.__init__(self, 'System CPU Usage')
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self.set_border_width(10)
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self._updated = False
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width = (gtk.gdk.screen_width() * 99 / 100) - 50
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height = (gtk.gdk.screen_height() * 15 / 100) - 20
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# Create graphic
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self._graphic = HorizontalGraphic()
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self._graphic.set_size_request(width, height)
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fixed = gtk.Fixed()
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fixed.set_border_width(10)
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fixed.add(self._graphic)
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self.add(fixed)
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self._DRW_CPU = CPU_Usage()
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self._DRW_CPU.frequency = 1000 # 1 Second
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gobject.timeout_add(self._DRW_CPU.frequency, self._update_cpu_usage)
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def _update_cpu_usage(self):
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self._cpu = self._DRW_CPU._get_CPU_usage()
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self._updated = True
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self.set_label('System CPU Usage: ' + str(self._cpu) + '%')
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# Draw the value into the graphic
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self._graphic.draw_value(self._cpu)
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return True
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