1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
|
--[[--------------------------------------------------------------------
bench_llex.lua
Benchmark test for llex.lua
This file is part of Yueliang.
Copyright (c) 2006 Kein-Hong Man <khman@users.sf.net>
The COPYRIGHT file describes the conditions
under which this software may be distributed.
See the ChangeLog for more information.
----------------------------------------------------------------------]]
local lex_init = require("../llex_mk3")
------------------------------------------------------------------------
-- load in a standard set of sample files
-- * file set is 5.0.3 front end set sans luac.lua
------------------------------------------------------------------------
local fileset, totalsize = {}, 0
for fn in string.gfind([[
../../orig-5.0.3/lcode.lua
../../orig-5.0.3/ldump.lua
../../orig-5.0.3/llex.lua
../../orig-5.0.3/lopcodes.lua
../../orig-5.0.3/lparser.lua
../../orig-5.0.3/lzio.lua
]], "%S+") do
table.insert(fileset, fn)
end
for i = 1, table.getn(fileset) do
local fn = fileset[i]
local inf = io.open(fn, "rb")
if not inf then
error("failed to open "..fn.." for reading")
end
local data = inf:read("*a")
local data_sz = string.len(data)
inf:close()
if not data or data_sz == 0 then
error("failed to read data from "..fn.." or file is zero-length")
end
totalsize = totalsize + data_sz
fileset[i] = data
end
------------------------------------------------------------------------
-- benchmark tester
------------------------------------------------------------------------
local DURATION = 5 -- how long the benchmark should run
local time = os.time
local lexedsize = 0
local tnow, elapsed = time(), 0
while time() == tnow do end -- wait for second to click over
tnow = time()
while true do
for i = 1, table.getn(fileset) do
------------------------------------------------------------
local chunk = fileset[i]
local luaX = lex_init(chunk, "=string")
while true do
local tok, seminfo = luaX:lex()
if tok == "<eof>" then break end
end
------------------------------------------------------------
lexedsize = lexedsize + string.len(chunk)
if time() > tnow then
tnow = time()
elapsed = elapsed + 1
if elapsed >= DURATION then
-- report performance of lexer
lexedsize = lexedsize / 1024
local speed = lexedsize / DURATION
print("Lexer performance:")
print("Size of data lexed (KB): "..string.format("%.1f", lexedsize))
print("Speed of lexer (KB/s): "..string.format("%.1f", speed))
-- repeat until user breaks program
elapsed = 0
end
end
------------------------------------------------------------
end--for
end--while
-- end of script
|
