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
|
#!/usr/bin/env ruby
$:.unshift File.expand_path('../../lib', __FILE__)
require 'vmstat'
last = Vmstat.snapshot
system 'clear'
WIDTH = 60
class String
def black; "\033[30m#{self}\033[0m" end
def red; "\033[31m#{self}\033[0m" end
def green; "\033[32m#{self}\033[0m" end
def brown; "\033[33m#{self}\033[0m" end
def blue; "\033[34m#{self}\033[0m" end
def magenta; "\033[35m#{self}\033[0m" end
def cyan; "\033[36m#{self}\033[0m" end
def gray; "\033[37m#{self}\033[0m" end
def bg_black; "\033[40m#{self}\033[0m" end
def bg_red; "\033[41m#{self}\033[0m" end
def bg_green; "\033[42m#{self}\033[0m" end
def bg_brown; "\033[43m#{self}\033[0m" end
def bg_blue; "\033[44m#{self}\033[0m" end
def bg_magenta; "\033[45m#{self}\033[0m" end
def bg_cyan; "\033[46m#{self}\033[0m" end
def bg_gray; "\033[47m#{self}\033[0m" end
def bold; "\033[1m#{self}\033[22m" end
def reverse_color; "\033[7m#{self}\033[27m" end
end
MB = 1024 ** 2
loop do
current = Vmstat.snapshot
memory = current.memory
free = (memory.free_bytes + memory.inactive_bytes) / MB
used = (memory.active_bytes + memory.wired_bytes) / MB
print "\033[0;0H"
print "Memory Free: #{free.to_s.bg_gray.black} MB"
print "\tUsed: #{used.to_s.bg_gray.black} MB"
print "\tWired: #{(memory.wired_bytes / MB).to_s.bg_gray.black} MB"
puts "\tTotal: #{(memory.total_bytes / MB).to_s.bg_gray.black} MB"
current.cpus.each_with_index do |cpu, i|
user = cpu.user - last.cpus[i].user
system = cpu.system - last.cpus[i].system
idle = cpu.idle - last.cpus[i].idle
print "CPU #{i + 1} "
print " ".bg_red * (system.to_f / 100.0 * WIDTH)
print " ".bg_green * (user.to_f / 100.0 * WIDTH)
print " " * (idle.to_f / 100.0 * WIDTH)
puts
end
last = current
sleep 1
end
|
