1
Facter.add("physicalprocessorcount") do
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confine :kernel => :linux
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ppcount = Facter::Util::Resolution.exec('grep "physical id" /proc/cpuinfo|cut -d: -f 2|sort -u|wc -l')
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# Fact: physicalprocessorcount
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# Purpose: Return the number of physical processors.
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# Attempts to use sysfs to get the physical IDs of the processors. Falls
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# back to /proc/cpuinfo and "physical id" if sysfs is not available.
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Facter.add('physicalprocessorcount') do
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confine :kernel => :linux
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sysfs_cpu_directory = '/sys/devices/system/cpu' # This should always be there ...
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if File.exists?(sysfs_cpu_directory)
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# We assume that the sysfs file system has the correct number of entries
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# under the "/sys/device/system/cpu" directory and if so then we process
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# content of the file "physical_package_id" located inside the "topology"
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# directory in each of the per-CPU sub-directories.
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# As per Linux Kernel documentation and the file "cputopology.txt" located
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# inside the "/usr/src/linux/Documentation" directory we can find following
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# 1) /sys/devices/system/cpu/cpuX/topology/physical_package_id:
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# physical package id of cpuX. Typically corresponds to a physical
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# socket number, but the actual value is architecture and platform
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lookup_pattern = "#{sysfs_cpu_directory}" +
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"/cpu*/topology/physical_package_id"
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Dir.glob(lookup_pattern).collect { |f| Facter::Util::Resolution.exec("cat #{f}")}.uniq.size
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# Try to count number of CPUs using the proc file system next ...
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# We assume that /proc/cpuinfo has what we need and is so then we need
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# to make sure that we only count unique entries ...
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str = Facter::Util::Resolution.exec("grep 'physical.\\+:' /proc/cpuinfo")
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if str then str.scan(/\d+/).uniq.size; end
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Facter.add('physicalprocessorcount') do
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confine :kernel => :windows
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require 'facter/util/wmi'
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Facter::Util::WMI.execquery("select Name from Win32_Processor").Count
added
removed
lib/facter/physicalprocessorcount.rb
