class ComputeUnit::Cpu
Constants
- DEVICE_CLASS
- DEVICE_CLASS_NAME
- VOLTAGE_MSR
Public Class Methods
@summary Finds all cpu attached processes and sorts by pctcpu @param field [Symbol] - the field to sort by @param filter [Regex] - if supplied filter out devices from fd list @return [Array] - an array of attached processes
# File lib/compute_unit/cpu.rb, line 30 def self.attached_processes(field = :pctcpu, _filter = nil) Sys::ProcTable.ps(smaps: false).sort_by(&field) end
# File lib/compute_unit/cpu.rb, line 188 def self.create_from_path(device_path, index) opts = { device_class_id: device_class(device_path), device_id: device(device_path), device_vendor_id: device_vendor(device_path), subsystem_vendor_id: subsystem_vendor(device_path), subsystem_device_id: subsystem_device(device_path), index: index } new(device_path, opts) end
@return [Array] - returns a list of device paths of all devices considered for display
# File lib/compute_unit/cpu.rb, line 12 def self.devices ComputeUnit::ComputeBase.devices.find_all do |device| ComputeUnit::Device.device_class(device) == DEVICE_CLASS end end
# File lib/compute_unit/cpu.rb, line 200 def self.find_all(_use_opencl = false) devices.sort.map.with_index do |device_path, index| create_from_path(device_path, index) end end
ComputeUnit::ComputeBase::new
# File lib/compute_unit/cpu.rb, line 174 def initialize(_device_path, opts) super @type = :CPU @pci_loc = device_path @index = opts[:index].to_i @power_offset = 0 @uuid = opts[:uuid] || opts[:serial] end
Public Instance Methods
@return [String] the path of the hwmon path for monitoring temps
# File lib/compute_unit/cpu.rb, line 99 def base_hwmon_path File.join(ComputeUnit::SYSFS_PATH, 'devices/platform/coretemp.0/hwmon') end
# File lib/compute_unit/cpu.rb, line 18 def bios 'N/A' end
@return [Float] - current mhz of cpu
# File lib/compute_unit/cpu.rb, line 84 def current_freq_mhz raw_cpu_data[:cpu_mhz].to_f.round(0) end
# File lib/compute_unit/cpu.rb, line 128 def fan 2500 # until we can calculate fan speed end
@return [String] - the maker of the cpu
# File lib/compute_unit/cpu.rb, line 64 def make raw_cpu_data[:vendor_id] end
@return [Float] - max mhz of cpu
# File lib/compute_unit/cpu.rb, line 89 def max_freq_mhz raw_cpu_data[:cpu_max_mhz].to_f.round(0) end
# File lib/compute_unit/cpu.rb, line 132 def mem_temp 0 # until we can get the mem temp end
# File lib/compute_unit/cpu.rb, line 154 def metrics { uuid: uuid, temp: temp, minFreqMhz: min_freq_mhz, maxFreqMhz: max_freq_mhz, currentFreqMhz: current_freq_mhz, model: model, make: make, numCores: num_cores, numThreads: num_threads, nproc: nproc, temps: temps } end
@return [Float] - current min of cpu
# File lib/compute_unit/cpu.rb, line 94 def min_freq_mhz raw_cpu_data[:cpu_min_mhz].to_f.round(0) end
@return [String] - the model / name of the cpu
# File lib/compute_unit/cpu.rb, line 54 def model raw_cpu_data[:model_name] end
@return [String] - the model / name of the cpu
# File lib/compute_unit/cpu.rb, line 59 def name model end
@return [Integer] - the number of cpus
# File lib/compute_unit/cpu.rb, line 79 def nproc raw_cpu_data[:cpus].to_i end
@return [Integer] - the number of cores
# File lib/compute_unit/cpu.rb, line 69 def num_cores raw_cpu_data[:cores_per_socket].to_i end
@return [Integer] - the number of threads
# File lib/compute_unit/cpu.rb, line 74 def num_threads raw_cpu_data[:threads_per_core].to_i end
# File lib/compute_unit/cpu.rb, line 136 def pci_loc device_path end
# File lib/compute_unit/cpu.rb, line 124 def power ENV.fetch('CPU_POWER', 60).to_i # until we can calculate power we will just use 60 end
# File lib/compute_unit/cpu.rb, line 120 def status 0 end
# File lib/compute_unit/cpu.rb, line 140 def status_info { index: uuid, name: model, bios: 'N/A', core_clock: current_freq_mhz, memory_clock: 'N/A', power: power, fan: fan, core_volt: voltage, temp: temp, mem_temp: mem_temp, status: status } end
@return [Integer] - the temperature of the cpu package in Celsius
# File lib/compute_unit/cpu.rb, line 116 def temp read_hwmon_data('temp1_input', 0).to_f.round(0) / 1000 end
@return [Hash] - a hash of temp readings and their labels @example temps => {:core_0=>31, :core_1=>31, :package_id_0=>27}
# File lib/compute_unit/cpu.rb, line 105 def temps Dir.glob(File.join(hwmon_path, 'temp*_label')).each_with_object({}) do |label_file, acc| temp_file = label_file.sub('label', 'input') label = normalize_name(read_file(label_file)) reading = read_file(temp_file).to_f.round(0) / 1000 acc[label] = reading acc end end
# File lib/compute_unit/cpu.rb, line 170 def to_h super.merge(metrics) end
# File lib/compute_unit/cpu.rb, line 22 def utilization 1 # until we can calculate this. Is loadavg a good metric? or load / cpus end
@return [String] - the type and index of the device
# File lib/compute_unit/cpu.rb, line 184 def uuid @uuid ||= "#{type}#{index}" end
@summary [Float] - returns the voltage of the cpu @param processor_id [Integer] - the id of the cpu
# File lib/compute_unit/cpu.rb, line 36 def voltage(processor_id = 0) file = "/dev/cpu/#{processor_id}/msr" return 0 unless File.exist?(file) # read 8 bytes, then unpack it by turning it into an integer # make it a binary string, pluck out some specific bits, then # convert it back to an integer # divide by 8192 to give the voltage # lowbit = 32 # highbit = 47 # bits = 47 - 32 + 1 # we want to read bits 32-47 msr = IO.new IO.sysopen(file, 'rb') msr.sysseek(VOLTAGE_MSR) data, = msr.sysread(8).unpack('q') format('%.2f', ((data >> 32) / 8192.to_f)) end
Private Instance Methods
@param value [String] @return [String] @summary downcases and transforms spaces into underscores
# File lib/compute_unit/cpu.rb, line 211 def normalize_name(value) value.downcase.gsub(/\s/, '_').gsub('(s)', 's').to_sym end
@return [Hash] - a hash of cpu info returned from lscpu normalizes the key name by downcasing and removing spaces @example
raw_cpu_data() =>
{“architecture”=>“x86_64”, “cpu_op-modes”=>“32-bit, 64-bit”, “byte_order”=>“Little Endian”,
"cpus"=>"4", "on-line_cpus list"=>"0-3", "threads_per core"=>"2", "cores_per socket"=>"2", "sockets"=>"1", "numa_nodes"=>"1", "vendor_id"=>"GenuineIntel", "cpu_family"=>"6", "model"=>"158", "model_name"=>"Intel(R) Core(TM) i3-7100 CPU @ 3.90GHz", "stepping"=>"9", "cpu_mhz"=>"800.545", "cpu_max mhz"=>"3900.0000", "cpu_min mhz"=>"800.0000", "bogomips"=>"7799.87", "virtualization"=>"VT-x", "l1d_cache"=>"32K", "l1i_cache"=>"32K", "l2_cache"=>"256K", "l3_cache"=>"3072K", "numa_node0 cpus"=>"0-3", "flags"=>"fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault invpcid_single tpr_shadow vnmi flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid mpx rdseed adx smap clflushopt intel_pt xsaveopt xsavec xgetbv1 xsaves dtherm arat pln pts hwp hwp_notify hwp_act_window hwp_epp"
}
# File lib/compute_unit/cpu.rb, line 235 def raw_cpu_data @raw_cpu_data ||= begin # turns each line into a hash of key value pairs regex = /(?<name>[\s\w\-\(\)]+)\:\s+(?<value>[@\s\w\-\,\.\(\)]+)$/ `lscpu`.lines.each_with_object({}) do |line, acc| m = line.match(regex) name = normalize_name(m.named_captures['name']) acc[name] = m.named_captures['value'].chomp if m acc end end end