1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
|
# Copyright (C) 2007, Eduardo Silva (edsiper@gmail.com).
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
import os
import sys
import gtk
import string
import gobject
import cairo
import procmem
from graphics.frequency import HorizontalGraphic
class CPU_Usage:
_CPU_HZ = 0
_last_jiffies = 0
_times = 0
def __init__(self):
self._CPU_HZ = os.sysconf(2)
def _get_CPU_data(self):
# Uptime info
stat_file = "/proc/stat"
try:
infile = file(stat_file, "r")
except:
print "Error trying uptime file"
return -1
stat_line = infile.readline()
cpu_info = string.split(stat_line, ' ')
infile.close()
return cpu_info
def _get_CPU_usage(self):
cpu_info = self._get_CPU_data()
used_jiffies = (int(cpu_info[2]) + int(cpu_info[3]) + int(cpu_info[4]))
if self._times ==0:
self._last_jiffies = used_jiffies
self._times +=1
return 0
new_ujiffies = (used_jiffies - self._last_jiffies)
new_ajiffies = ((self.frequency/1000) * self._CPU_HZ)
if new_ajiffies <= 0:
pcpu = 0.0
else:
pcpu = ((new_ujiffies*100)/new_ajiffies)
if pcpu >100:
pcpu = 100
self._times +=1
self._last_jiffies = used_jiffies
return pcpu
class XO_CPU(gtk.Frame):
_frequency_timer = 1
def __init__(self):
gtk.Frame.__init__(self, 'System CPU Usage')
self.set_border_width(10)
width = (gtk.gdk.screen_width() * 99 / 100) - 50
height = (gtk.gdk.screen_height() * 15 / 100) - 20
# Create graphic
self._graphic = HorizontalGraphic()
self._graphic.set_size_request(width, height)
fixed = gtk.Fixed()
fixed.set_border_width(10)
fixed.add(self._graphic)
self.add(fixed)
self._DRW_CPU = CPU_Usage()
self._DRW_CPU.frequency = 1000 # 1 Second
gobject.timeout_add(self._DRW_CPU.frequency, self._update_cpu_usage)
def _update_cpu_usage(self):
self._cpu = self._DRW_CPU._get_CPU_usage()
self.set_label('System CPU Usage: ' + str(self._cpu) + '%')
# Draw the value into the graphic
self._graphic.draw_value(self._cpu)
return True
|
