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# This file is a part of Julia. License is MIT: http://julialang.org/license
module Sys
export CPU_CORES,
WORD_SIZE,
ARCH,
MACHINE,
KERNEL,
JIT,
cpu_info,
cpu_name,
cpu_summary,
uptime,
loadavg,
free_memory,
total_memory
import ..Base: show
global CPU_CORES
"""
Sys.CPU_CORES
The number of CPU cores in the system.
"""
:CPU_CORES
"""
Sys.ARCH
A symbol representing the architecture of the build configuration.
"""
const ARCH = ccall(:jl_get_ARCH, Any, ())
"""
Sys.KERNEL
A symbol representing the name of the operating system, as returned by `uname` of the build configuration.
"""
const KERNEL = ccall(:jl_get_UNAME, Any, ())
"""
Sys.MACHINE
A string containing the build triple.
"""
const MACHINE = Base.MACHINE
"""
Sys.WORD_SIZE
Standard word size on the current machine, in bits.
"""
const WORD_SIZE = Core.sizeof(Int) * 8
function __init__()
# set CPU core count
global CPU_CORES =
haskey(ENV,"JULIA_CPU_CORES") ? parse(Int,ENV["JULIA_CPU_CORES"]) :
Int(ccall(:jl_cpu_cores, Int32, ()))
global SC_CLK_TCK = ccall(:jl_SC_CLK_TCK, Clong, ())
global cpu_name = ccall(:jl_get_cpu_name, Ref{String}, ())
global JIT = ccall(:jl_get_JIT, Ref{String}, ())
end
type UV_cpu_info_t
model::Ptr{UInt8}
speed::Int32
cpu_times!user::UInt64
cpu_times!nice::UInt64
cpu_times!sys::UInt64
cpu_times!idle::UInt64
cpu_times!irq::UInt64
end
type CPUinfo
model::String
speed::Int32
cpu_times!user::UInt64
cpu_times!nice::UInt64
cpu_times!sys::UInt64
cpu_times!idle::UInt64
cpu_times!irq::UInt64
CPUinfo(model,speed,u,n,s,id,ir)=new(model,speed,u,n,s,id,ir)
end
CPUinfo(info::UV_cpu_info_t) = CPUinfo(unsafe_string(info.model), info.speed,
info.cpu_times!user, info.cpu_times!nice, info.cpu_times!sys,
info.cpu_times!idle, info.cpu_times!irq)
show(io::IO, info::CPUinfo) = Base._show_cpuinfo(io, info, true, " ")
function _cpu_summary(io::IO, cpu::Array{CPUinfo}, i, j)
if j-i < 9
header = true
for x = i:j
header || println(io)
Base._show_cpuinfo(io, cpu[x], header, "#$(x-i+1) ")
header = false
end
else
summary = CPUinfo(cpu[i].model,0,0,0,0,0,0)
count = j - i + 1
for x = i:j
summary.speed += cpu[i].speed
summary.cpu_times!user += cpu[x].cpu_times!user
summary.cpu_times!nice += cpu[x].cpu_times!nice
summary.cpu_times!sys += cpu[x].cpu_times!sys
summary.cpu_times!idle += cpu[x].cpu_times!idle
summary.cpu_times!irq += cpu[x].cpu_times!irq
end
summary.speed = div(summary.speed,count)
Base._show_cpuinfo(io, summary, true, "#1-$(count) ")
end
println(io)
end
function cpu_summary(io::IO=STDOUT, cpu::Array{CPUinfo}=cpu_info())
model = cpu[1].model
first = 1
for i = 2:length(cpu)
if model != cpu[i].model
_cpu_summary(io, cpu, first, i-1)
first = i
end
end
_cpu_summary(io, cpu, first, length(cpu))
end
function cpu_info()
UVcpus = Array{Ptr{UV_cpu_info_t}}(1)
count = Array{Int32}(1)
Base.uv_error("uv_cpu_info",ccall(:uv_cpu_info, Int32, (Ptr{Ptr{UV_cpu_info_t}}, Ptr{Int32}), UVcpus, count))
cpus = Array{CPUinfo}(count[1])
for i = 1:length(cpus)
cpus[i] = CPUinfo(unsafe_load(UVcpus[1],i))
end
ccall(:uv_free_cpu_info, Void, (Ptr{UV_cpu_info_t}, Int32), UVcpus[1], count[1])
return cpus
end
function uptime()
uptime_ = Array{Float64}(1)
Base.uv_error("uv_uptime",ccall(:uv_uptime, Int32, (Ptr{Float64},), uptime_))
return uptime_[1]
end
function loadavg()
loadavg_ = Array{Float64}(3)
ccall(:uv_loadavg, Void, (Ptr{Float64},), loadavg_)
return loadavg_
end
free_memory() = ccall(:uv_get_free_memory, UInt64, ())
total_memory() = ccall(:uv_get_total_memory, UInt64, ())
function get_process_title()
buf = zeros(UInt8, 512)
err = ccall(:uv_get_process_title, Cint, (Ptr{UInt8}, Cint), buf, 512)
Base.uv_error("get_process_title", err)
return unsafe_string(pointer(buf))
end
function set_process_title(title::AbstractString)
err = ccall(:uv_set_process_title, Cint, (Cstring,), title)
Base.uv_error("set_process_title", err)
end
maxrss() = ccall(:jl_maxrss, Csize_t, ())
if is_windows()
function windows_version()
verinfo = ccall(:GetVersion, UInt32, ())
(Int(verinfo & 0xFF), Int((verinfo >> 8) & 0xFF))
end
else
windows_version() = (0, 0)
end
"""
windows_version()
Returns the version number for the Windows NT Kernel as a (major, minor) pair,
or `(0, 0)` if this is not running on Windows.
"""
windows_version
const WINDOWS_VISTA_VER = (6, 0)
end # module Sys