cmark

My personal build of CMark ✏️

Commit: c360bb0e1767cd89e51a8580c29c2ccfbbd5a0f1
Parent: 16b275eb7b83ccbea6ef18b1c62efa655a1d3759
Author: John MacFarlane <jgm@berkeley.edu>
Date: Sat, 17 Jan 2015 21:01:39 -0800

Added new fine-grained JS benchmarks.

And a script to run them.

Diffstat

3 files changed, 79 insertions, 11 deletions

Status	File Name	N° Changes	Insertions	Deletions
Modified	benchmarks.md	53	42	11
Added	tools/detailed_benchmarks.sh	2	2	0
Added	tools/format_benchmarks.awk	35	35	0

diff --git a/benchmarks.md b/benchmarks.md
@@ -34,14 +34,45 @@ interrupt runs.
 
 ## JavaScript libraries
 
-Here are some JavaScript benchmarks using `node.js`.
-They can be run using `make benchjs`.  The source text is
-the CommonMark `README.md` file, but can be configured by
-setting the `BENCHINP` environment variable.
-
-Implementation  | Ops/sec
-----------------|---------
-commonmark.js   | 586
-showdown.js     | 171
-marked.js       | 564
-markdown-it     | 760
+Here are some focused benchmarks of four JavaScript libraries.
+(using version available on 17 Jan 2015). They test performance
+on different kinds of Markdown texts.  With the exception of
+the first (the `README.md` from this project), the samples are taken
+from the [markdown-it](https://github.com/markdown-it/markdown-it)
+repository.  Results show a ratio of ops/second (higher is better)
+against the slowest implementation (always showdown).
+
+| Sample                 |showdown  |commonmark|marked    |markdown-it|
+|------------------------|---------:|---------:|---------:|----------:|
+|README.md               |         1|       3.2|       3.1|        4.4|
+|block-bq-flat.md        |         1|       8.0|      12.8|       11.3|
+|block-bq-nested.md      |         1|      10.8|       9.9|       12.6|
+|block-code.md           |         1|      24.9|      58.4|       83.2|
+|block-fences.md         |         1|      16.4|      66.5|       65.5|
+|block-heading.md        |         1|      10.7|      11.0|       17.5|
+|block-hr.md             |         1|      14.4|      14.6|       37.7|
+|block-html.md           |         1|       7.9|       2.8|       14.8|
+|block-lheading.md       |         1|      14.4|      17.7|       26.1|
+|block-list-flat.md      |         1|       4.3|       4.3|       10.4|
+|block-list-nested.md    |         1|       7.4|       5.7|       19.1|
+|block-ref-flat.md       |         1|       1.8|       1.1|        1.5|
+|block-ref-nested.md     |         1|       1.5|       1.4|        2.4|
+|inline-autolink.md      |         1|       4.1|       7.0|        4.5|
+|inline-backticks.md     |         1|      15.8|      13.7|       30.7|
+|inline-em-flat.md       |         1|       4.1|       3.8|        8.7|
+|inline-em-nested.md     |         1|       5.2|       4.6|        8.3|
+|inline-em-worst.md      |         1|       5.3|       4.9|        3.4|
+|inline-entity.md        |         1|       4.8|       9.7|        7.7|
+|inline-escape.md        |         1|       4.6|       2.9|       12.4|
+|inline-html.md          |         1|       3.6|       5.2|        5.0|
+|inline-links-flat.md    |         1|       3.7|       4.0|        4.1|
+|inline-links-nested.md  |         1|       3.8|       1.0|        1.5|
+|inline-newlines.md      |         1|       6.9|       6.5|       13.1|
+|rawtabs.md              |         1|       8.9|       9.7|       13.4|
+
+To run these:
+
+1. `npm install marked showdown markdown-it`
+2. Create a `samples` subdirectory and copy the samples you
+   want to test into it.
+3. `sh tools/detailed_benchmarks.sh`

diff --git a/tools/detailed_benchmarks.sh b/tools/detailed_benchmarks.sh
@@ -0,0 +1,2 @@
+sudo echo ""
+for x in samples/*.md; do make benchjs BENCHINP=$x; done | awk -f tools/format_benchmarks.awk

diff --git a/tools/format_benchmarks.awk b/tools/format_benchmarks.awk
@@ -0,0 +1,35 @@
+#!/bin/sh env awk
+BEGIN {
+    CONVFMT="%2.1f";
+    print "| Sample                 |showdown  |commonmark|marked    |markdown-it|"
+    print "|------------------------|---------:|---------:|---------:|----------:|"
+}
+{
+        if (/samples\//) {
+                sub(/samples\//, "");
+                printf "|%-24s|", $7;
+        } else if (/^showdown/) {
+                sub(/,/, "");
+                showdown = $4;
+        } else if (/^commonmark/) {
+                sub(/,/, "");
+                commonmark = $4;
+        } else if (/^marked/) {
+                sub(/,/, "");
+                marked = $4;
+        } else if (/^markdown-it/) {
+                sub(/,/, "");
+                markdownit = $4;
+                printf "%10s|%10s|%10s|%11s|\n",
+                       (showdown / showdown),
+                       (commonmark / showdown),
+                       (marked / showdown),
+                       (markdownit / showdown);
+                markdownit = "";
+                showdown = "";
+                marked = "";
+                commonmark = "";
+        } else {
+                next;
+        }
+}