compress/flate: benchmark some English text, not just the digits of e.
The testdata/e.txt input is repeated on the longer benchmarks, but the
length of that data is less than flate's window size, so the numbers are
essentially measuring the performance of a trivial compression. A follow-up
CL will add more data to testdata/e.txt.
Sample output on my laptop (linux, amd64):
BenchmarkDecodeDigitsSpeed1e4 5000 603153 ns/op 16.58 MB/s
BenchmarkDecodeDigitsSpeed1e5 1000
1465602 ns/op 68.23 MB/s
BenchmarkDecodeDigitsSpeed1e6 200
8036050 ns/op 124.44 MB/s
BenchmarkDecodeDigitsDefault1e4 5000 581796 ns/op 17.19 MB/s
BenchmarkDecodeDigitsDefault1e5 2000 846653 ns/op 118.11 MB/s
BenchmarkDecodeDigitsDefault1e6 500
3385782 ns/op 295.35 MB/s
BenchmarkDecodeDigitsCompress1e4 5000 581180 ns/op 17.21 MB/s
BenchmarkDecodeDigitsCompress1e5 2000 846209 ns/op 118.17 MB/s
BenchmarkDecodeDigitsCompress1e6 500
3386174 ns/op 295.32 MB/s
BenchmarkDecodeTwainSpeed1e4 5000 643563 ns/op 15.54 MB/s
BenchmarkDecodeTwainSpeed1e5 500
5418408 ns/op 18.46 MB/s
BenchmarkDecodeTwainSpeed1e6 50
52277520 ns/op 19.13 MB/s
BenchmarkDecodeTwainDefault1e4 5000 583551 ns/op 17.14 MB/s
BenchmarkDecodeTwainDefault1e5 500
4443428 ns/op 22.51 MB/s
BenchmarkDecodeTwainDefault1e6 50
41862080 ns/op 23.89 MB/s
BenchmarkDecodeTwainCompress1e4 5000 583490 ns/op 17.14 MB/s
BenchmarkDecodeTwainCompress1e5 500
4426356 ns/op 22.59 MB/s
BenchmarkDecodeTwainCompress1e6 50
41657940 ns/op 24.01 MB/s
BenchmarkEncodeDigitsSpeed1e4 2000
1230907 ns/op 8.12 MB/s
BenchmarkEncodeDigitsSpeed1e5 1000
2319129 ns/op 43.12 MB/s
BenchmarkEncodeDigitsSpeed1e6 100
12378950 ns/op 80.78 MB/s
BenchmarkEncodeDigitsDefault1e4 1000
1597865 ns/op 6.26 MB/s
BenchmarkEncodeDigitsDefault1e5 500
3163458 ns/op 31.61 MB/s
BenchmarkEncodeDigitsDefault1e6 100
18770240 ns/op 53.28 MB/s
BenchmarkEncodeDigitsCompress1e4 1000
1603461 ns/op 6.24 MB/s
BenchmarkEncodeDigitsCompress1e5 500
3168766 ns/op 31.56 MB/s
BenchmarkEncodeDigitsCompress1e6 100
18855830 ns/op 53.03 MB/s
BenchmarkEncodeTwainSpeed1e4 1000
1338049 ns/op 7.47 MB/s
BenchmarkEncodeTwainSpeed1e5 500
7341622 ns/op 13.62 MB/s
BenchmarkEncodeTwainSpeed1e6 50
67484600 ns/op 14.82 MB/s
BenchmarkEncodeTwainDefault1e4 1000
1778399 ns/op 5.62 MB/s
BenchmarkEncodeTwainDefault1e5 100
23261810 ns/op 4.30 MB/s
BenchmarkEncodeTwainDefault1e6 10
243533600 ns/op 4.11 MB/s
BenchmarkEncodeTwainCompress1e4 1000
1795469 ns/op 5.57 MB/s
BenchmarkEncodeTwainCompress1e5 50
29447140 ns/op 3.40 MB/s
BenchmarkEncodeTwainCompress1e6 5
321686800 ns/op 3.11 MB/s
ok compress/flate 89.246s
R=rsc, r
CC=golang-dev
https://golang.org/cl/
6195055