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53984e5be2
Part 1 of optimizing the deflater. This optimizes the bitwriter by: * Removing allocations. * Storing compound values for bit codes instead of 2 separate tables. * Accumulate 48 bits between writes instead of 24. * Inline bit flushing. This also contains code that will be used in later CL's (writeBlockDynamic, writeBlockHuff). Tests for Huffman bit writer encoding regressions has been added. name old speed new speed delta EncodeDigitsSpeed1e4-4 19.3MB/s ± 1% 21.6MB/s ± 1% +11.77% EncodeDigitsSpeed1e5-4 25.0MB/s ± 6% 30.7MB/s ± 1% +22.70% EncodeDigitsSpeed1e6-4 28.2MB/s ± 1% 32.3MB/s ± 1% +14.64% EncodeDigitsDefault1e4-4 13.3MB/s ± 0% 14.2MB/s ± 1% +7.07% EncodeDigitsDefault1e5-4 6.43MB/s ± 1% 6.64MB/s ± 1% +3.27% EncodeDigitsDefault1e6-4 5.81MB/s ± 0% 5.85MB/s ± 1% +0.69% EncodeDigitsCompress1e4-4 13.2MB/s ± 0% 14.4MB/s ± 0% +9.10% EncodeDigitsCompress1e5-4 6.40MB/s ± 1% 6.61MB/s ± 0% +3.20% EncodeDigitsCompress1e6-4 5.80MB/s ± 1% 5.90MB/s ± 1% +1.64% EncodeTwainSpeed1e4-4 18.4MB/s ± 1% 20.7MB/s ± 1% +12.72% EncodeTwainSpeed1e5-4 27.7MB/s ± 1% 31.0MB/s ± 1% +11.78% EncodeTwainSpeed1e6-4 29.1MB/s ± 0% 32.9MB/s ± 2% +13.25% EncodeTwainDefault1e4-4 12.4MB/s ± 0% 13.1MB/s ± 1% +5.88% EncodeTwainDefault1e5-4 7.52MB/s ± 1% 7.83MB/s ± 0% +4.19% EncodeTwainDefault1e6-4 7.08MB/s ± 1% 7.26MB/s ± 0% +2.54% EncodeTwainCompress1e4-4 12.0MB/s ± 1% 12.8MB/s ± 1% +6.70% EncodeTwainCompress1e5-4 5.96MB/s ± 1% 6.16MB/s ± 0% +3.27% EncodeTwainCompress1e6-4 5.37MB/s ± 0% 5.39MB/s ± 1% +0.47% >Allocations: benchmark old allocs new allocs delta BenchmarkEncodeDigitsSpeed1e4-4 50 0 -100.00% BenchmarkEncodeDigitsSpeed1e5-4 110 0 -100.00% BenchmarkEncodeDigitsSpeed1e6-4 1032 0 -100.00% BenchmarkEncodeDigitsDefault1e4-4 56 0 -100.00% BenchmarkEncodeDigitsDefault1e5-4 120 0 -100.00% BenchmarkEncodeDigitsDefault1e6-4 966 0 -100.00% BenchmarkEncodeDigitsCompress1e4-4 56 0 -100.00% BenchmarkEncodeDigitsCompress1e5-4 120 0 -100.00% BenchmarkEncodeDigitsCompress1e6-4 966 0 -100.00% BenchmarkEncodeTwainSpeed1e4-4 58 0 -100.00% BenchmarkEncodeTwainSpeed1e5-4 132 0 -100.00% BenchmarkEncodeTwainSpeed1e6-4 1082 0 -100.00% BenchmarkEncodeTwainDefault1e4-4 52 0 -100.00% BenchmarkEncodeTwainDefault1e5-4 126 0 -100.00% BenchmarkEncodeTwainDefault1e6-4 886 0 -100.00% BenchmarkEncodeTwainCompress1e4-4 52 0 -100.00% BenchmarkEncodeTwainCompress1e5-4 120 0 -100.00% BenchmarkEncodeTwainCompress1e6-4 880 0 -100.00% benchmark old bytes new bytes delta BenchmarkEncodeDigitsSpeed1e4-4 4288 2 -99.95% BenchmarkEncodeDigitsSpeed1e5-4 8896 15 -99.83% BenchmarkEncodeDigitsSpeed1e6-4 84098 153 -99.82% BenchmarkEncodeDigitsDefault1e4-4 4480 3 -99.93% BenchmarkEncodeDigitsDefault1e5-4 9216 76 -99.18% BenchmarkEncodeDigitsDefault1e6-4 73920 768 -98.96% BenchmarkEncodeDigitsCompress1e4-4 4480 3 -99.93% BenchmarkEncodeDigitsCompress1e5-4 9216 76 -99.18% BenchmarkEncodeDigitsCompress1e6-4 73920 768 -98.96% BenchmarkEncodeTwainSpeed1e4-4 4544 2 -99.96% BenchmarkEncodeTwainSpeed1e5-4 9600 15 -99.84% BenchmarkEncodeTwainSpeed1e6-4 77633 153 -99.80% BenchmarkEncodeTwainDefault1e4-4 4352 3 -99.93% BenchmarkEncodeTwainDefault1e5-4 9408 76 -99.19% BenchmarkEncodeTwainDefault1e6-4 65984 768 -98.84% BenchmarkEncodeTwainCompress1e4-4 4352 3 -99.93% BenchmarkEncodeTwainCompress1e5-4 9216 76 -99.18% BenchmarkEncodeTwainCompress1e6-4 65792 768 -98.83% Updates #14258 Change-Id: Ibaa97b9619743ad623094727228eb2ada1ec7f1f Reviewed-on: https://go-review.googlesource.com/19336 Reviewed-by: Nigel Tao <nigeltao@golang.org> Reviewed-by: Joe Tsai <joetsai@digital-static.net> Run-TryBot: Joe Tsai <joetsai@digital-static.net> TryBot-Result: Gobot Gobot <gobot@golang.org>
146 lines
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146 lines
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etc src=/etc
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mime.types src=../misc/nacl/testdata/mime.types
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resolv.conf src=../misc/nacl/testdata/empty
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group src=../misc/nacl/testdata/group
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passwd src=../misc/nacl/testdata/empty
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hosts src=../misc/nacl/testdata/hosts
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services
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usr src=../misc/nacl/testdata
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bin
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go src=..
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src
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cmd
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api
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testdata
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asm
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internal
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asm
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testdata
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doc
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main.go
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pkg.go
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doc_test.go
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testdata
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internal
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objfile
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objfile.go
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unvendor
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golang.org
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x
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arch
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arm
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armasm
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testdata
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x86
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x86asm
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testdata
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gofmt
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gofmt.go
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gofmt_test.go
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testdata
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archive
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tar
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testdata
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zip
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testdata
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compress
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bzip2
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testdata
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flate
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testdata
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gzip
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testdata
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lzw
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testdata
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zlib
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crypto
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rsa
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testdata
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tls
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testdata
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debug
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dwarf
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testdata
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elf
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testdata
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macho
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testdata
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pe
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testdata
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plan9obj
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testdata
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go
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build
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doc
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testdata
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format
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parser
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printer
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image
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testdata
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draw
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gif
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jpeg
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png
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testdata
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io
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mime
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testdata
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multipart
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testdata
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net
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http
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testdata
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os
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path
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filepath
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regexp
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testdata
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strconv
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testdata
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text
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template
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testdata
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lib
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time
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zoneinfo.zip
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test
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