1 files changed, 76 insertions, 0 deletions
diff --git a/Data/BuiltIn/Libraries/lbase64/bench.lua b/Data/BuiltIn/Libraries/lbase64/bench.lua
new file mode 100644
index 0000000..d24c1bf
--- /dev/null
+++ b/Data/BuiltIn/Libraries/lbase64/bench.lua
@@ -0,0 +1,76 @@
+local base64 = require'base64'
+local N = 10000000
+local st = {}
+local letters = ' abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890'
+ .. 'абвгдеёжзийклмнопрстуфхцшщчъыьэюя'
+ .. 'АБВГДЕЁЖЗИЙКЛМНОПРСТУФХЦШЩЧЪЫЬЭЮЯ'
+local nletters = #letters
+for i = 1, N do
+	local j = math.random( nletters )
+	st[i] = letters:sub( j, j )
+end
+local s = table.concat( st )
+local t = os.clock()
+local encoded = base64.encode( s )
+local encodetime = os.clock() - t
+
+t = os.clock()
+local decoded = base64.decode( encoded )
+local decodetime = os.clock() - t
+
+assert( s == decoded )
+print('Common text')
+print(('Encoding: %d bytes/sec'):format( math.floor(N/encodetime)))
+print(('Decoding: %d bytes/sec'):format( math.floor(N/decodetime)))
+collectgarbage()
+
+t = os.clock()
+encoded = base64.encode( s, nil, true )
+encodetime = os.clock() - t
+
+t = os.clock()
+decoded = base64.decode( encoded, nil, true )
+assert( s == decoded )
+decodetime = os.clock() - t
+print('Common text (cache)')
+print(('Encoding: %d bytes/sec'):format( math.floor(N/encodetime)))
+print(('Decoding: %d bytes/sec'):format( math.floor(N/decodetime)))
+collectgarbage()
+
+local lt = {}
+for i = 0, 255 do
+	lt[i] = string.char(i)
+end
+nletters = #lt
+for i = 1, N do
+	local j = math.random( nletters )
+	st[i] = lt[j]
+end
+s = table.concat( st )
+
+t = os.clock()
+encoded = base64.encode( s, nil )
+encodetime = os.clock() - t
+
+t = os.clock()
+decoded = base64.decode( encoded )
+decodetime = os.clock() - t
+
+assert( s == decoded )
+print('Binary')
+print(('Encoding: %d bytes/sec'):format( math.floor(N/encodetime)))
+print(('Decoding: %d bytes/sec'):format( math.floor(N/decodetime)))
+collectgarbage()
+
+t = os.clock()
+encoded = base64.encode( s, nil, true )
+encodetime = os.clock() - t
+
+t = os.clock()
+decoded = base64.decode( encoded, nil, true )
+assert( s == decoded )
+decodetime = os.clock() - t
+print('Binary (cache)')
+print(('Encoding: %d bytes/sec'):format( math.floor(N/encodetime)))
+print(('Decoding: %d bytes/sec'):format( math.floor(N/decodetime)))
+collectgarbage()