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#
# Author:: Adam Jacob (<adam@chef.io>)
# Copyright:: Copyright (c) 2008-2016 Chef Software, Inc.
# License:: Apache License, Version 2.0
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
Ohai.plugin(:CPU) do
provides "cpu"
collect_data(:linux) do
cpuinfo = Mash.new
real_cpu = Mash.new
cpu_number = 0
current_cpu = nil
File.open("/proc/cpuinfo").each do |line|
case line
when /processor\s+:\s(.+)/
cpuinfo[$1] = Mash.new
current_cpu = $1
cpu_number += 1
when /vendor_id\s+:\s(.+)/
vendor_id = $1
if vendor_id =~ (/IBM\/S390/)
cpuinfo["vendor_id"] = vendor_id
else
cpuinfo[current_cpu]["vendor_id"] = vendor_id
end
when /cpu family\s+:\s(.+)/
cpuinfo[current_cpu]["family"] = $1
when /model\s+:\s(.+)/
cpuinfo[current_cpu]["model"] = $1
when /stepping\s+:\s(.+)/
cpuinfo[current_cpu]["stepping"] = $1
when /physical id\s+:\s(.+)/
cpuinfo[current_cpu]["physical_id"] = $1
real_cpu[$1] = true
when /core id\s+:\s(.+)/
cpuinfo[current_cpu]["core_id"] = $1
when /cpu cores\s+:\s(.+)/
cpuinfo[current_cpu]["cores"] = $1
when /model name\s+:\s(.+)/
cpuinfo[current_cpu]["model_name"] = $1
when /cpu MHz\s+:\s(.+)/
cpuinfo[current_cpu]["mhz"] = $1
when /cache size\s+:\s(.+)/
cpuinfo[current_cpu]["cache_size"] = $1
when /flags\s+:\s(.+)/
cpuinfo[current_cpu]["flags"] = $1.split(" ")
when /BogoMIPS\s+:\s(.+)/
cpuinfo[current_cpu]["bogomips"] = $1
when /Features\s+:\s(.+)/
cpuinfo[current_cpu]["features"] = $1.split(" ")
when /bogomips per cpu:\s(.+)/
cpuinfo["bogomips_per_cpu"] = $1
when /features\s+:\s(.+)/
cpuinfo["features"] = $1.split(" ")
when /processor\s(\d):\s(.+)/
current_cpu = $1
cpu_number += 1
cpuinfo[current_cpu] = Mash.new
current_cpu_info = $2.split(",")
current_cpu_info.each do |i|
name_value = i.split("=")
name = name_value[0].strip
value = name_value[1].strip
cpuinfo[current_cpu][name] = value
end
end
end
cpu cpuinfo
cpu[:total] = cpu_number
# use data we collected unless cpuinfo is lacking core information
# which is the case on older linux distros
if !real_cpu.empty? && cpu["0"]["cores"]
cpu[:real] = real_cpu.keys.length
cpu[:cores] = real_cpu.keys.length * cpu["0"]["cores"].to_i
else
begin
Ohai::Log.debug("Plugin CPU: Falling back to aggregate data from lscpu as real cpu & core data is missing in /proc/cpuinfo")
so = shell_out("lscpu")
if so.exitstatus == 0
lscpu_data = Mash.new
so.stdout.each_line do |line|
case line
when /^Thread\(s\) per core:\s(.+)/ # http://rubular.com/r/lOw2pRrw1q
lscpu_data[:threads] = $1.to_i
when /^Core\(s\) per socket:\s(.+)/ # http://rubular.com/r/lOw2pRrw1q
lscpu_data[:cores] = $1.to_i
when /^Socket\(s\):\s(.+)/ # http://rubular.com/r/DIzmPtJFvK
lscpu_data[:sockets] = $1.to_i
end
end
cpu[:total] = lscpu_data[:sockets] * lscpu_data[:cores] * lscpu_data[:threads]
cpu[:real] = lscpu_data[:sockets]
cpu[:cores] = lscpu_data[:sockets] * lscpu_data[:cores]
else
Ohai::Log.debug("Plugin CPU: Error executing lscpu. CPU data may not be available.")
end
rescue Ohai::Exceptions::Exec # util-linux isn't installed most likely
Ohai::Log.debug("Plugin CPU: Error executing lscpu. util-linux may not be installed.")
end
end
end
end
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