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thin_metadata_size: suppurt bytes unit

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This commit is contained in:
Heinz Mauelshagen 2013-06-24 12:30:43 +02:00
parent ee10946959
commit bea157cf70
1 changed files with 8 additions and 14 deletions
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22
thin-provisioning/thin_metadata_size
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@ -18,21 +18,15 @@ require 'pathname'
$prg = Pathname.new($0).basename $prg = Pathname.new($0).basename
def init_units def init_units
units = Hash.new units = {}
units[:chars] = "sKkMmGgTtPpEeZzYy" units[:chars] = "bsKkMmGgTtPpEeZzYy"
units[:strings] = [ 'sectors', units[:strings] = [ 'bytes', 'sectors',
'kilobytes', 'kibibytes', 'megabytes', 'mebibytes', 'kilobytes', 'kibibytes', 'megabytes', 'mebibytes',
'gigabytes', 'gibibytes', 'terabytes', 'tebibytes', 'gigabytes', 'gibibytes', 'terabytes', 'tebibytes',
'petabytes', 'pebibytes', 'exabytes', 'ebibytes', 'petabytes', 'pebibytes', 'exabytes', 'ebibytes',
'zetabytes', 'zebibytes', 'yottabytes', 'yobibytes' ] 'zetabytes', 'zebibytes', 'yottabytes', 'yobibytes' ]
units[:factors] = Array.new units[:factors] = [ 1, 512 ]
1.step(8) { |e| units[:factors] += [ 1024**e, 1000**e ] }
units[:factors][0] = 512
1.step(8) do |e|
i = (e - 1) * 2 + 1
units[:factors][i] = 1024**e
units[:factors][i + 1] = 1000**e
end
units units
end end
@ -48,7 +42,7 @@ def to_sectors(size, units)
abort "#{$prg} - only one unit character allowed!" if a.length > 1 || size.length - s.length > 1 abort "#{$prg} - only one unit character allowed!" if a.length > 1 || size.length - s.length > 1
abort "#{$prg} - invalid unit specifier!" if s != a[0] abort "#{$prg} - invalid unit specifier!" if s != a[0]
idx = units[:chars].index(size[a[0].length]) idx = units[:chars].index(size[a[0].length])
r = size.to_i * units[:factors][idx] / units[:factors][0] r = size.to_i * units[:factors][idx] / units[:factors][1]
r r
end end
@ -96,9 +90,9 @@ def mappings_per_block
end end
def estimated_result(opts, units) def estimated_result(opts, units)
idx = opts[:units] ? units[:chars].index(opts[:units]) : 0 idx = opts[:units] ? units[:chars].index(opts[:units]) : 1
# double-fold # of nodes, because they aren't fully populated in average # double-fold # of nodes, because they aren't fully populated in average
r = (1.0 + ((opts[:poolsize] / opts[:blocksize] / mappings_per_block) * 2 + opts[:maxthins])) * 8 * units[:factors][0] # in bytes! r = (1.0 + ((opts[:poolsize] / opts[:blocksize] / mappings_per_block) * 2 + opts[:maxthins])) * 8 * units[:factors][1] # in bytes!
r /= units[:factors][idx] r /= units[:factors][idx]
tmp = "%.2f" % r tmp = "%.2f" % r
if tmp.to_f > 0.0 if tmp.to_f > 0.0