Object
Encapsulates system CPU information
The version of the sys-cpu library
# File lib/unix/sys/cpu.rb, line 92 def self.architecture if respond_to?(:sysinfo, true) buf = 0.chr * 257 if sysinfo(SI_ARCHITECTURE, buf, buf.size) < 0 raise Error, "sysinfo function failed" end buf.strip elsif respond_to?(:sysctlbyname, true) optr = FFI::MemoryPointer.new(:char, 256) size = FFI::MemoryPointer.new(:size_t) size.write_int(optr.size) if RbConfig::CONFIG['host_os'] =~ /darwin/ name = 'hw.machine' else name = 'hw.machine_arch' end if sysctlbyname(name, optr, size, nil, 0) < 0 raise Error, "sysctlbyname function failed" end optr.read_string else buf = 0.chr * 64 mib = FFI::MemoryPointer.new(:int, 2) size = FFI::MemoryPointer.new(:long, 1) mib.write_array_of_int([CTL_HW, HW_MACHINE_ARCH]) size.write_int(buf.size) if sysctl(mib, 2, buf, size, nil, 0) < 0 raise Error, "sysctl function failed" end buf.strip end end
Returns a hash of arrays that contain the number of seconds that the system spent in user mode, user mode with low priority (nice), system mode, and the idle task, respectively.
# File lib/linux/sys/cpu.rb, line 99 def self.cpu_stats cpu_stat_file = "/proc/stat" hash = {} # Hash needed for multi-cpu systems lines = IO.readlines(cpu_stat_file) lines.each_with_index{ |line, i| array = line.split break unless array[0] =~ /cpu/ # 'cpu' entries always on top # Some machines list a 'cpu' and a 'cpu0'. In this case only # return values for the numbered cpu entry. if lines[i].split[0] == "cpu" && lines[i+1].split[0] =~ /cpu\d/ next end vals = array[1..-1].map{ |e| e = e.to_i / 100 } # 100 jiffies/sec. hash[array[0]] = vals } hash end
Returns a string indicating the type of processor, e.g. GenuineIntel.
# File lib/windows/sys/cpu.rb, line 258 def self.cpu_type(host = Socket.gethostname) cs = BASE_CS + "//#{host}/root/cimv2:Win32_Processor='cpu0'" begin wmi = WIN32OLE.connect(cs) rescue WIN32OLERuntimeError => e raise Error, e else return wmi.Manufacturer end end
# File lib/unix/sys/cpu.rb, line 306 def self.fpu_type raise NoMethodError unless respond_to?(:processor_info, true) pinfo = ProcInfo.new if processor_info(0, pinfo) < 0 if processor_info(1, pinfo) < 0 raise Error, "process_info function failed" end end pinfo[:pi_fputypes].to_s end
# File lib/unix/sys/cpu.rb, line 245 def self.freq if respond_to?(:sysctlbyname, true) optr = FFI::MemoryPointer.new(:long) size = FFI::MemoryPointer.new(:size_t) size.write_long(optr.size) if RbConfig::CONFIG['host_os'] =~ /bsd/ name = 'hw.clockrate' else name = 'hw.cpufrequency' end if sysctlbyname(name, optr, size, nil, 0) < 0 raise Error, "sysctlbyname failed" end if RbConfig::CONFIG['host_os'] =~ /darwin/ optr.read_long / 1000000 else optr.read_long end elsif respond_to?(:sysctl, true) buf = 0.chr * 16 mib = FFI::MemoryPointer.new(:int, 2) size = FFI::MemoryPointer.new(:long, 1) mib.write_array_of_int([CTL_HW, HW_CPU_FREQ]) size.write_int(buf.size) if sysctl(mib, 2, buf, size, nil, 0) < 0 raise Error, "sysctl function failed" end buf.unpack("I*").first / 1000000 else pinfo = ProcInfo.new # Some systems start at 0, some at 1 if processor_info(0, pinfo) < 0 if processor_info(1, pinfo) < 0 raise Error, "process_info function failed" end end pinfo[:pi_clock].to_i end end
# File lib/unix/sys/cpu.rb, line 294 def self.load_avg if respond_to?(:getloadavg, true) loadavg = FFI::MemoryPointer.new(:double, 3) if getloadavg(loadavg, loadavg.size) < 0 raise Error, "getloadavg function failed" end loadavg.get_array_of_double(0, 3) end end
# File lib/unix/sys/cpu.rb, line 170 def self.machine if respond_to?(:sysctl, true) buf = 0.chr * 32 mib = FFI::MemoryPointer.new(:int, 2) size = FFI::MemoryPointer.new(:long, 1) mib.write_array_of_int([CTL_HW, HW_MACHINE]) size.write_int(buf.size) if sysctl(mib, 2, buf, size, nil, 0) < 0 raise Error, "sysctl function failed" end buf.strip else buf = 0.chr * 257 if sysinfo(SI_MACHINE, buf, buf.size) < 0 raise Error, "sysinfo function failed" end buf.strip end end
# File lib/unix/sys/cpu.rb, line 195 def self.model if RbConfig::CONFIG['host_os'] =~ /darwin/ ptr = FFI::MemoryPointer.new(:long) size = FFI::MemoryPointer.new(:size_t) size.write_long(ptr.size) if sysctlbyname("hw.cputype", ptr, size, nil, 0) < 0 raise "sysctlbyname function failed" end case ptr.read_long when CPU_TYPE_X86, CPU_TYPE_X86_64 "Intel" when CPU_TYPE_SPARC "Sparc" when CPU_TYPE_POWERPC, CPU_TYPE_POWERPC64 "PowerPC" else "Unknown" end else if respond_to?(:sysctl, true) buf = 0.chr * 64 mib = FFI::MemoryPointer.new(:int, 2) size = FFI::MemoryPointer.new(:long, 1) mib.write_array_of_int([CTL_HW, HW_MODEL]) size.write_int(buf.size) if sysctl(mib, 2, buf, size, nil, 0) < 0 raise Error, "sysctl function failed" end buf.strip else pinfo = ProcInfo.new # Some systems start at 0, some at 1 if processor_info(0, pinfo) < 0 if processor_info(1, pinfo) < 0 raise Error, "process_info function failed" end end pinfo[:pi_processor_type].to_s end end end
# File lib/unix/sys/cpu.rb, line 134 def self.num_cpu if respond_to?(:sysctlbyname, true) optr = FFI::MemoryPointer.new(:long) size = FFI::MemoryPointer.new(:size_t) size.write_long(optr.size) if sysctlbyname('hw.ncpu', optr, size, nil, 0) < 0 raise Error, "sysctlbyname failed" end optr.read_long elsif respond_to?(:sysconf, true) num = sysconf(SC_NPROCESSORS_ONLN) if num < 0 raise Error, "sysconf function failed" end num else buf = 0.chr * 4 mib = FFI::MemoryPointer.new(:int, 2) size = FFI::MemoryPointer.new(:long, 1) mib.write_array_of_int([CTL_HW, HW_NCPU]) size.write_int(buf.size) if sysctl(mib, 2, buf, size, nil, 0) < 0 raise Error, "sysctl function failed" end buf.strip.unpack("C").first end end
Returns a CPUStruct for each CPU on host, or the localhost if no host is specified. A CPUStruct contains the following members:
address_width
architecture
availability
caption
config_manager_error_code
config_manager_user_config
cpu_status
creation_class_name
freq
voltage
data_width
description
device_id
error_cleared?
error_description
ext_clock
family
install_date
l2_cache_size
l2_cache_speed
last_error_code
level
manufacturer
max_clock_speed
name
other_family_description
pnp_device_id
power_management_supported?
power_management_capabilities
processor_id
processor_type
revision
role
socket_designation
status
status_info
stepping
system_creation_class_name
system_name
unique_id
upgrade_method
version
voltage_caps
Note that not all of these members will necessarily be defined.
# File lib/windows/sys/cpu.rb, line 199 def self.processors(host = Socket.gethostname) # :yields: CPUStruct begin wmi = WIN32OLE.connect(BASE_CS + "//#{host}/root/cimv2") rescue WIN32OLERuntimeError => e raise Error, e else wmi.InstancesOf("Win32_Processor").each{ |cpu| yield CPUStruct.new( cpu.AddressWidth, self.get_cpu_arch(cpu.Architecture), self.get_availability(cpu.Availability), cpu.Caption, self.get_cmec(cpu.ConfigManagerErrorCode), cpu.ConfigManagerUserConfig, get_status(cpu.CpuStatus), cpu.CreationClassName, cpu.CurrentClockSpeed, cpu.CurrentVoltage, cpu.DataWidth, cpu.Description, cpu.DeviceId, cpu.ErrorCleared, cpu.ErrorDescription, cpu.ExtClock, self.get_family(cpu.Family), cpu.InstallDate, cpu.L2CacheSize, cpu.L2CacheSpeed, cpu.LastErrorCode, cpu.Level, cpu.LoadPercentage, cpu.Manufacturer, cpu.MaxClockSpeed, cpu.Name, cpu.OtherFamilyDescription, cpu.PNPDeviceID, cpu.PowerManagementSupported, cpu.PowerManagementCapabilities, cpu.ProcessorId, self.get_processor_type(cpu.ProcessorType), cpu.Revision, cpu.Role, cpu.SocketDesignation, cpu.Status, cpu.StatusInfo, cpu.Stepping, cpu.SystemCreationClassName, cpu.SystemName, cpu.UniqueId, self.get_upgrade_method(cpu.UpgradeMethod), cpu.Version, self.get_voltage_caps(cpu.VoltageCaps) ) } end end
# File lib/unix/sys/cpu.rb, line 320 def self.state(num = 0) raise NoMethodError unless respond_to?(:processor_info, true) pinfo = ProcInfo.new if processor_info(num, pinfo) < 0 raise Error, "process_info function failed" end case pinfo[:pi_state].to_i when P_ONLINE "online" when P_OFFLINE "offline" when P_POWEROFF "poweroff" when P_FAULTED "faulted" when P_NOINTR "nointr" when P_SPARE "spare" else "unknown" end end
Generated with the Darkfish Rdoc Generator 2.