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markdown/tracking-perf.md

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switch to using interface{} for node data
2018-01-26 03:05:50 +00:00
## Tracking perf changes
Initial performance:
```
$ go test -bench=. -test.benchmem
goos: darwin
goarch: amd64
pkg: github.com/gomarkdown/markdown
BenchmarkEscapeHTML-8 2000000 823 ns/op 0 B/op 0 allocs/op
BenchmarkSmartDoubleQuotes-8 300000 5033 ns/op 9872 B/op 56 allocs/op
BenchmarkReferenceAmps-8 100000 19538 ns/op 26776 B/op 150 allocs/op
BenchmarkReferenceAutoLinks-8 100000 17574 ns/op 24544 B/op 132 allocs/op
BenchmarkReferenceBackslashEscapes-8 30000 50977 ns/op 76752 B/op 243 allocs/op
BenchmarkReferenceBlockquotesWithCodeBlocks-8 200000 8546 ns/op 12864 B/op 65 allocs/op
BenchmarkReferenceCodeBlocks-8 200000 9000 ns/op 14912 B/op 70 allocs/op
BenchmarkReferenceCodeSpans-8 200000 8856 ns/op 14992 B/op 69 allocs/op
BenchmarkReferenceHardWrappedPara-8 200000 6599 ns/op 11312 B/op 57 allocs/op
BenchmarkReferenceHorizontalRules-8 100000 15483 ns/op 23536 B/op 98 allocs/op
BenchmarkReferenceInlineHTMLAdvances-8 200000 6839 ns/op 12150 B/op 62 allocs/op
BenchmarkReferenceInlineHTMLSimple-8 100000 19940 ns/op 28488 B/op 117 allocs/op
BenchmarkReferenceInlineHTMLComments-8 200000 7455 ns/op 13440 B/op 64 allocs/op
BenchmarkReferenceLinksInline-8 100000 16425 ns/op 23664 B/op 147 allocs/op
BenchmarkReferenceLinksReference-8 30000 54895 ns/op 66464 B/op 416 allocs/op
BenchmarkReferenceLinksShortcut-8 100000 17647 ns/op 23776 B/op 158 allocs/op
BenchmarkReferenceLiterQuotesInTitles-8 200000 9367 ns/op 14832 B/op 95 allocs/op
BenchmarkReferenceMarkdownBasics-8 10000 129772 ns/op 130848 B/op 378 allocs/op
BenchmarkReferenceMarkdownSyntax-8 3000 502365 ns/op 461411 B/op 1411 allocs/op
BenchmarkReferenceNestedBlockquotes-8 200000 7028 ns/op 12688 B/op 64 allocs/op
BenchmarkReferenceOrderedAndUnorderedLists-8 20000 79686 ns/op 107520 B/op 374 allocs/op
BenchmarkReferenceStrongAndEm-8 200000 10020 ns/op 17792 B/op 78 allocs/op
BenchmarkReferenceTabs-8 200000 12025 ns/op 18224 B/op 81 allocs/op
BenchmarkReferenceTidyness-8 200000 8985 ns/op 14432 B/op 71 allocs/op
PASS
ok github.com/gomarkdown/markdown 45.375s
```
After switching to using interface{} for Node.Data:
```
BenchmarkEscapeHTML-8 2000000 929 ns/op 0 B/op 0 allocs/op
BenchmarkSmartDoubleQuotes-8 300000 5126 ns/op 9248 B/op 56 allocs/op
BenchmarkReferenceAmps-8 100000 19927 ns/op 17880 B/op 154 allocs/op
BenchmarkReferenceAutoLinks-8 100000 20732 ns/op 17360 B/op 141 allocs/op
BenchmarkReferenceBackslashEscapes-8 30000 50267 ns/op 38128 B/op 244 allocs/op
BenchmarkReferenceBlockquotesWithCodeBlocks-8 200000 8988 ns/op 10912 B/op 67 allocs/op
BenchmarkReferenceCodeBlocks-8 200000 8611 ns/op 12256 B/op 74 allocs/op
BenchmarkReferenceCodeSpans-8 200000 8256 ns/op 11248 B/op 69 allocs/op
BenchmarkReferenceHardWrappedPara-8 200000 6739 ns/op 9856 B/op 57 allocs/op
BenchmarkReferenceHorizontalRules-8 100000 15503 ns/op 15600 B/op 104 allocs/op
BenchmarkReferenceInlineHTMLAdvances-8 200000 6874 ns/op 10278 B/op 62 allocs/op
BenchmarkReferenceInlineHTMLSimple-8 100000 22271 ns/op 18552 B/op 121 allocs/op
BenchmarkReferenceInlineHTMLComments-8 200000 8315 ns/op 10736 B/op 64 allocs/op
BenchmarkReferenceLinksInline-8 100000 16155 ns/op 16912 B/op 152 allocs/op
BenchmarkReferenceLinksReference-8 30000 52387 ns/op 38192 B/op 445 allocs/op
BenchmarkReferenceLinksShortcut-8 100000 17111 ns/op 16592 B/op 167 allocs/op
BenchmarkReferenceLiterQuotesInTitles-8 200000 9164 ns/op 12048 B/op 97 allocs/op
BenchmarkReferenceMarkdownBasics-8 10000 129262 ns/op 87264 B/op 416 allocs/op
BenchmarkReferenceMarkdownSyntax-8 3000 496873 ns/op 293906 B/op 1559 allocs/op
BenchmarkReferenceNestedBlockquotes-8 200000 6854 ns/op 10192 B/op 64 allocs/op
BenchmarkReferenceOrderedAndUnorderedLists-8 20000 79633 ns/op 55024 B/op 447 allocs/op
BenchmarkReferenceStrongAndEm-8 200000 9637 ns/op 12176 B/op 78 allocs/op
BenchmarkReferenceTabs-8 100000 12164 ns/op 13776 B/op 87 allocs/op
BenchmarkReferenceTidyness-8 200000 8677 ns/op 11296 B/op 75 allocs/op
```
Not necessarily faster, but uses less bytes per op (but sometimes more allocs).
update perf tracking
2018-01-26 08:45:32 +00:00
After tweaking the API:
```
$ ./s/run-bench.sh
go test -bench=. -test.benchmem
goos: darwin
goarch: amd64
pkg: github.com/gomarkdown/markdown
BenchmarkEscapeHTML-8 2000000 834 ns/op 0 B/op 0 allocs/op
BenchmarkSmartDoubleQuotes-8 300000 3486 ns/op 6160 B/op 27 allocs/op
BenchmarkReferenceAmps-8 100000 18158 ns/op 14792 B/op 125 allocs/op
BenchmarkReferenceAutoLinks-8 100000 16824 ns/op 14272 B/op 112 allocs/op
BenchmarkReferenceBackslashEscapes-8 30000 44066 ns/op 35040 B/op 215 allocs/op
BenchmarkReferenceBlockquotesWithCodeBlocks-8 200000 6868 ns/op 7824 B/op 38 allocs/op
BenchmarkReferenceCodeBlocks-8 200000 7157 ns/op 9168 B/op 45 allocs/op
BenchmarkReferenceCodeSpans-8 200000 6663 ns/op 8160 B/op 40 allocs/op
BenchmarkReferenceHardWrappedPara-8 300000 4821 ns/op 6768 B/op 28 allocs/op
BenchmarkReferenceHorizontalRules-8 100000 13033 ns/op 12512 B/op 75 allocs/op
BenchmarkReferenceInlineHTMLAdvances-8 300000 4998 ns/op 7190 B/op 33 allocs/op
BenchmarkReferenceInlineHTMLSimple-8 100000 17696 ns/op 15464 B/op 92 allocs/op
BenchmarkReferenceInlineHTMLComments-8 300000 5506 ns/op 7648 B/op 35 allocs/op
BenchmarkReferenceLinksInline-8 100000 14450 ns/op 13824 B/op 123 allocs/op
BenchmarkReferenceLinksReference-8 30000 52561 ns/op 35104 B/op 416 allocs/op
BenchmarkReferenceLinksShortcut-8 100000 15616 ns/op 13504 B/op 138 allocs/op
BenchmarkReferenceLiterQuotesInTitles-8 200000 7772 ns/op 8960 B/op 68 allocs/op
BenchmarkReferenceMarkdownBasics-8 10000 121436 ns/op 84176 B/op 387 allocs/op
BenchmarkReferenceMarkdownSyntax-8 3000 487404 ns/op 290818 B/op 1530 allocs/op
BenchmarkReferenceNestedBlockquotes-8 300000 5098 ns/op 7104 B/op 35 allocs/op
BenchmarkReferenceOrderedAndUnorderedLists-8 20000 74422 ns/op 51936 B/op 418 allocs/op
BenchmarkReferenceStrongAndEm-8 200000 7888 ns/op 9088 B/op 49 allocs/op
BenchmarkReferenceTabs-8 200000 10061 ns/op 10688 B/op 58 allocs/op
BenchmarkReferenceTidyness-8 200000 7152 ns/op 8208 B/op 46 allocs/op
PASS
ok github.com/gomarkdown/markdown 40.809s
```