ScottPJones

ASCII: Looping 1000 times, length=8
length:              2.787 microseconds
is_valid_ascii:    147.612 milliseconds (56000 allocations: 613 MB, 10.18% gc time)
Convert to UTF-8:    8.788 microseconds (1000 allocations: 16000 bytes)
Convert to UTF-16:  92.011 microseconds (2000 allocations: 109 KB)
Convert to UTF-32:  89.666 microseconds (2000 allocations: 125 KB)


ASCII:: Looping 1000 times, length=8
UTF-8: 8, UTF-16: 16, UTF-32: 32

ScottPJones

ASCII: Looping 1000 times, length=8
length:              2.715 microseconds
is_valid_ascii:    150.964 milliseconds (56000 allocations: 613 MB, 10.07% gc time)
Convert to UTF-8:   19.096 microseconds (1000 allocations: 16000 bytes)
Convert to UTF-16:  85.436 microseconds (2000 allocations: 109 KB)
Convert to UTF-32:  95.890 microseconds (2000 allocations: 125 KB)


ASCII:: Looping 1000 times, length=8
UTF-8: 8, UTF-16: 16, UTF-32: 32

ScottPJones

# issue #11004 (#10959)

module TestConvert

global counttest = 0
global counterr  = 0

incrtest() = (global counttest += 1)
increrr() = (global counterr += 1)

ScottPJones

VERSION < v"0.4-" && (typealias AbstractString String)
function tst{T <: AbstractString}(str::T, max::Int)
    local l
    for i=1:max
	l = length(str)
    end
    l
end
function cvt8{T <: AbstractString}(str::T, max::Int)
    local out

ScottPJones

ASCII: Looping 100 times, length=8
length:              1.295 microseconds
is_valid_ascii:     25.904 milliseconds (5600 allocations: 62722 KB, 40.59% gc time)
Convert to UTF-8:      985 nanoseconds  (100 allocations: 1600 bytes)
Convert to UTF-16:   8.212 microseconds (200 allocations: 11200 bytes)
Convert to UTF-32:  10.364 microseconds (200 allocations: 12800 bytes)


ASCII:: Looping 100 times, length=8
UTF-8: 8, UTF-16: 16, UTF-32: 32

ScottPJones

ASCII: Looping 100 times, length=8
length:              1.316 microseconds
is_valid_ascii:     22.529 milliseconds (5600 allocations: 62722 KB, 31.40% gc time)
Convert to UTF-8:    1.527 microseconds (100 allocations: 1600 bytes)
Convert to UTF-16:  16.616 microseconds (500 allocations: 17600 bytes)
Convert to UTF-32:   9.947 microseconds (200 allocations: 12800 bytes)


ASCII:: Looping 100 times, length=8
UTF-8: 8, UTF-16: 16, UTF-32: 32

ScottPJones

# This file is a part of Julia. License is MIT: http://julialang.org/license

module CheckUTF
if VERSION < v"0.4-"
    typealias AbstractString String
    typealias UInt Uint
    typealias UInt8 Uint8
    typealias UInt16 Uint16
    typealias UInt32 Uint32
end

ScottPJones

julia> @timev dotest(1000,true)

ASCII: Looping 1000 times, length=8
length:              6.128 microseconds
is_valid_ascii:     16.227 microseconds
Convert to UTF-8:   18.801 microseconds (1000 allocations: 16000 bytes)
Convert to UTF-16: 123.615 microseconds (2000 allocations: 109 KB)
Convert to UTF-32: 128.039 microseconds (2000 allocations: 125 KB)

ScottPJones

ulia> @time for i=1:1000
       x = utf16("this is a test\u80\uff\u7ff\uffff\U10ffff")
       end
 140.447 microseconds (2000  allocations: 44925 KB)

julia> @time for i=1:10
       x = utf16("this is a test\u80\uff\u7ff\uffff\U10ffff")
       end
   5.457 microseconds (20  allocations: 44801 KB)

ScottPJones

   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: http://docs.julialang.org
   _ _   _| |_  __ _   |  Type "help()" for help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 0.4.0-dev+4600 (2015-05-02 21:32 UTC)
 _/ |\__'_|_|_|\__'_|  |  spj/u16_charlen/0dad086* (fork: 1 commits, 0 days)
|__/                   |  x86_64-apple-darwin14.3.0

julia> include("/d/spj/perftest.jl")
""