add perf results

diff --git a/README.md b/README.md
index d55fa672da9eb8520ce14828b7df277ed8633b1d..cd333f556de10a3be76603ef83a69bdabf5bf56c 100644 (file)
--- a/README.md
+++ b/README.md
@@ -9,3 +9,96 @@ When you `require('buffer')` in
 this module will be loaded.
 
 It will also be loaded if you use the global `Buffer` variable.
+
+## Performance
+
+See perf tests in `/perf`.
+
+```
+# Chrome 33
+
+NewBuffer#bracket-notation x 11,194,815 ops/sec ±1.73% (64 runs sampled)
+OldBuffer#bracket-notation x 9,546,694 ops/sec ±0.76% (67 runs sampled)
+Fastest is NewBuffer#bracket-notation
+
+NewBuffer#concat x 949,714 ops/sec ±2.48% (63 runs sampled)
+OldBuffer#concat x 634,906 ops/sec ±0.42% (68 runs sampled)
+Fastest is NewBuffer#concat
+
+NewBuffer#copy x 15,436,458 ops/sec ±1.74% (67 runs sampled)
+OldBuffer#copy x 3,990,346 ops/sec ±0.42% (68 runs sampled)
+Fastest is NewBuffer#copy
+
+NewBuffer#readDoubleBE x 1,132,954 ops/sec ±2.36% (65 runs sampled)
+OldBuffer#readDoubleBE x 846,337 ops/sec ±0.58% (68 runs sampled)
+Fastest is NewBuffer#readDoubleBE
+
+NewBuffer#new x 1,419,300 ops/sec ±3.50% (66 runs sampled)
+Uint8Array#new x 3,898,573 ops/sec ±0.88% (67 runs sampled) (used internally by NewBuffer)
+OldBuffer#new x 2,284,568 ops/sec ±0.57% (67 runs sampled)
+Fastest is Uint8Array#new
+
+NewBuffer#readFloatBE x 1,203,763 ops/sec ±1.81% (68 runs sampled)
+OldBuffer#readFloatBE x 954,923 ops/sec ±0.66% (70 runs sampled)
+Fastest is NewBuffer#readFloatBE
+
+NewBuffer#readUInt32LE x 750,341 ops/sec ±1.70% (66 runs sampled)
+OldBuffer#readUInt32LE x 1,408,478 ops/sec ±0.60% (68 runs sampled)
+Fastest is OldBuffer#readUInt32LE
+
+NewBuffer#slice x 1,802,870 ops/sec ±1.87% (64 runs sampled)
+OldBuffer#slice x 1,725,928 ops/sec ±0.74% (68 runs sampled)
+Fastest is NewBuffer#slice
+
+NewBuffer#writeFloatBE x 830,407 ops/sec ±3.09% (66 runs sampled)
+OldBuffer#writeFloatBE x 508,446 ops/sec ±0.49% (69 runs sampled)
+Fastest is NewBuffer#writeFloatBE
+
+# Node 0.11
+
+NewBuffer#bracket-notation x 10,912,085 ops/sec ±0.89% (92 runs sampled)
+OldBuffer#bracket-notation x 9,051,638 ops/sec ±0.84% (92 runs sampled)
+Buffer#bracket-notation x 10,721,608 ops/sec ±0.63% (91 runs sampled)
+Fastest is NewBuffer#bracket-notation
+
+NewBuffer#concat x 1,438,825 ops/sec ±1.80% (91 runs sampled)
+OldBuffer#concat x 888,614 ops/sec ±2.09% (93 runs sampled)
+Buffer#concat x 1,832,307 ops/sec ±1.20% (90 runs sampled)
+Fastest is Buffer#concat
+
+NewBuffer#copy x 5,987,167 ops/sec ±0.85% (94 runs sampled)
+OldBuffer#copy x 3,892,165 ops/sec ±1.28% (93 runs sampled)
+Buffer#copy x 11,208,889 ops/sec ±0.76% (91 runs sampled)
+Fastest is Buffer#copy
+
+NewBuffer#readDoubleBE x 1,057,233 ops/sec ±1.28% (88 runs sampled)
+OldBuffer#readDoubleBE x 4,094 ops/sec ±1.09% (86 runs sampled)
+Buffer#readDoubleBE x 1,587,308 ops/sec ±0.87% (84 runs sampled)
+Fastest is Buffer#readDoubleBE
+
+NewBuffer#new x 739,791 ops/sec ±0.89% (89 runs sampled)
+Uint8Array#new x 2,745,243 ops/sec ±0.95% (91 runs sampled)
+OldBuffer#new x 2,604,537 ops/sec ±0.93% (88 runs sampled)
+Buffer#new x 1,836,218 ops/sec ±0.74% (92 runs sampled)
+Fastest is Uint8Array#new
+
+NewBuffer#readFloatBE x 1,111,263 ops/sec ±0.41% (97 runs sampled)
+OldBuffer#readFloatBE x 4,026 ops/sec ±1.24% (90 runs sampled)
+Buffer#readFloatBE x 1,611,800 ops/sec ±0.58% (96 runs sampled)
+Fastest is Buffer#readFloatBE
+
+NewBuffer#readUInt32LE x 502,024 ops/sec ±0.59% (94 runs sampled)
+OldBuffer#readUInt32LE x 1,259,028 ops/sec ±0.79% (87 runs sampled)
+Buffer#readUInt32LE x 2,778,635 ops/sec ±0.46% (97 runs sampled)
+Fastest is Buffer#readUInt32LE
+
+NewBuffer#slice x 1,174,908 ops/sec ±1.47% (89 runs sampled)
+OldBuffer#slice x 2,396,302 ops/sec ±4.36% (86 runs sampled)
+Buffer#slice x 2,994,029 ops/sec ±0.79% (89 runs sampled)
+Fastest is Buffer#slice
+
+NewBuffer#writeFloatBE x 721,081 ops/sec ±1.10% (86 runs sampled)
+OldBuffer#writeFloatBE x 4,020 ops/sec ±1.04% (92 runs sampled)
+Buffer#writeFloatBE x 1,811,134 ops/sec ±0.67% (91 runs sampled)
+Fastest is Buffer#writeFloatBE
+```