bytes: faster Count, Index, Equal
Benchmarks are from GOARCH=amd64 on a MacPro5,1.
benchmark old MB/s new MB/s speedup
bytes_test.BenchmarkEqual32 452.89 891.07 1.97x
bytes_test.BenchmarkEqual4K 852.71 1700.44 1.99x
bytes_test.BenchmarkEqual4M 841.53 1587.93 1.89x
bytes_test.BenchmarkEqual64M 838.22 1578.14 1.88x
bytes_test.BenchmarkIndex32 58.02 48.99 0.84x
bytes_test.BenchmarkIndex4K 48.26 41.32 0.86x
bytes_test.BenchmarkIndex4M 48.20 41.24 0.86x
bytes_test.BenchmarkIndex64M 48.08 41.21 0.86x
bytes_test.BenchmarkIndexEasy32 410.04 546.82 1.33x
bytes_test.BenchmarkIndexEasy4K 849.26 14257.37 16.79x
bytes_test.BenchmarkIndexEasy4M 854.54 17222.15 20.15x
bytes_test.BenchmarkIndexEasy64M 843.57 11060.40 13.11x
bytes_test.BenchmarkCount32 57.24 50.68 0.89x
bytes_test.BenchmarkCount4K 48.19 41.82 0.87x
bytes_test.BenchmarkCount4M 48.18 41.74 0.87x
bytes_test.BenchmarkCount64M 48.17 41.71 0.87x
bytes_test.BenchmarkCountEasy32 433.11 547.44 1.26x
bytes_test.BenchmarkCountEasy4K 1130.59 14194.06 12.55x
bytes_test.BenchmarkCountEasy4M 1131.23 17231.18 15.23x
bytes_test.BenchmarkCountEasy64M 1111.40 11068.88 9.96x
The non-easy Count/Index benchmarks are a worst case input.
regexp.BenchmarkMatchEasy0_32 237.46 221.47 0.93x
regexp.BenchmarkMatchEasy0_1K 553.53 1019.72 1.84x
regexp.BenchmarkMatchEasy0_32K 693.99 1672.06 2.41x
regexp.BenchmarkMatchEasy0_1M 688.72 1611.68 2.34x
regexp.BenchmarkMatchEasy0_32M 680.70 1565.05 2.30x
regexp.BenchmarkMatchEasy1_32 165.56 243.08 1.47x
regexp.BenchmarkMatchEasy1_1K 336.45 496.32 1.48x
regexp.BenchmarkMatchEasy1_32K 302.80 425.63 1.41x
regexp.BenchmarkMatchEasy1_1M 300.42 414.20 1.38x
regexp.BenchmarkMatchEasy1_32M 299.64 413.47 1.38x
R=golang-dev, r, iant
CC=golang-dev
https://golang.org/cl/5451116
diff --git a/src/pkg/bytes/export_test.go b/src/pkg/bytes/export_test.go
index b65428d..f61523e 100644
--- a/src/pkg/bytes/export_test.go
+++ b/src/pkg/bytes/export_test.go
@@ -6,3 +6,4 @@
// Export func for testing
var IndexBytePortable = indexBytePortable
+var EqualPortable = equalPortable
