class TingYun::Agent::Collector::MemorySampler

Attributes

sampler[RW]

Public Class Methods

new() click to toggle source
# File lib/ting_yun/agent/collector/middle_ware_collector/memory_sampler.rb, line 15
def initialize
  # macos, linux, solaris
  if platform =~ /linux/
    @sampler = ProcStatus.new
    if !@sampler.can_run?
      ::TingYun::Agent.logger.debug "Error attempting to use /proc/#{$$}/status file for reading memory. Using ps command instead."
      @sampler = ShellPS.new("ps -o rsz")
    else
      ::TingYun::Agent.logger.debug "Using /proc/#{$$}/status for reading process memory."
    end
  elsif platform =~ /darwin9/ # 10.5
    @sampler = ShellPS.new("ps -o rsz")
  elsif platform =~ /darwin1\d+/ # >= 10.6
    @sampler = ShellPS.new("ps -o rss")
  elsif platform =~ /freebsd/
    @sampler = ShellPS.new("ps -o rss")
  elsif platform =~ /solaris/
    @sampler = ShellPS.new("/usr/bin/ps -o rss -p")
  end

  raise Unsupported, "Unsupported platform for getting memory: #{platform}" if @sampler.nil?
  raise Unsupported, "Unable to run #{@sampler}" unless @sampler.can_run?
end
platform() click to toggle source
# File lib/ting_yun/agent/collector/middle_ware_collector/memory_sampler.rb, line 47
def self.platform
  TingYun::Support::SystemInfo.ruby_os_identifier.downcase
end
supported_on_this_platform?() click to toggle source
# File lib/ting_yun/agent/collector/middle_ware_collector/memory_sampler.rb, line 39
def self.supported_on_this_platform?
  platform =~ /linux|darwin|freebsd|solaris/
end

Public Instance Methods

platform() click to toggle source
# File lib/ting_yun/agent/collector/middle_ware_collector/memory_sampler.rb, line 43
def platform
  TingYun::Support::SystemInfo.ruby_os_identifier.downcase
end
poll() click to toggle source
# File lib/ting_yun/agent/collector/middle_ware_collector/memory_sampler.rb, line 51
def poll
  sample = @sampler.get_sample
  if sample
    TingYun::Agent.record_metric("Memory/NULL/PhysicalUsed", sample)
  end
end