Class: ServerScripts::Parser::Cubex

Inherits:
Object
  • Object
show all
Defined in:
lib/server_scripts/parser/cubex.rb

Instance Method Summary collapse

Constructor Details

#initialize(fname) ⇒ Cubex

Supply the folder name of the cubex file. There should be a profile.cubex file inside this folder.

Raises:

  • (RuntimeError) 


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# File 'lib/server_scripts/parser/cubex.rb', line 6

def initialize(fname)
  ['cube_stat', 'cube_info'].each do |cmd|
    raise RuntimeError, "Must have #{cmd} installed." unless File.which(cmd)
  end
  @fname = "#{fname}/profile.cubex"
  raise RuntimeError, "#{@fname} does not exist!"  unless File.exists?(@fname)
end

Instance Method Details

#all_metrics ⇒ Object

Return an array of all the metrics available for the given cubex file.



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# File 'lib/server_scripts/parser/cubex.rb', line 35

def all_metrics
  output = `cube_info #{@fname} -l`
  output.split("\n")
end

#call_tree ⇒ Object

Get the call tree of the file as a string.



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# File 'lib/server_scripts/parser/cubex.rb', line 15

def call_tree
  `cube_info #{@fname}`
end

#parse(metric:, event:) ⇒ Object

Read the call tree and get the value for the given metric. Will return nil if the said metric does not exist for the given event.



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# File 'lib/server_scripts/parser/cubex.rb', line 21

def parse metric: , event:
  tree = `cube_info -m #{metric} #{@fname}`
  tree.each_line do |line|
    if /\s+#{event}\s+/.match(line)
      wo_space = line.gsub(" ", "")
      value = (/\|(\d+\.?\d+?)\|/.match(wo_space)[1]).to_f
      return value
    end
  end

  nil
end