Mercurial > hg
view tests/test-hgweb-empty.t @ 17616:9535a0dc41f2
store: implement fncache basic path encoding in C
(This is not yet enabled; it will be turned on in a followup patch.)
The path encoding performed by fncache is complex and (perhaps
surprisingly) slow enough to negatively affect the overall performance
of Mercurial.
For a short path (< 120 bytes), the Python code can be reduced to a fairly
tractable state machine that either determines that nothing needs to be
done in a single pass, or performs the encoding in a second pass.
For longer paths, we avoid the more complicated hashed encoding scheme
for now, and fall back to Python.
Raw performance: I measured in a repo containing 150,000 files in its tip
manifest, with a median path name length of 57 bytes, and 95th percentile
of 96 bytes.
In this repo, the Python code takes 3.1 seconds to encode all path
names, while the hybrid C-and-Python code (called from Python) takes
0.21 seconds, for a speedup of about 14.
Across several other large repositories, I've measured the speedup from
the C code at between 26x and 40x.
For path names above 120 bytes where we must fall back to Python for
hashed encoding, the speedup is about 1.7x. Thus absolute performance
will depend strongly on the characteristics of a particular repository.
| author | Bryan O'Sullivan <bryano@fb.com> |
|---|---|
| date | Tue, 18 Sep 2012 15:42:19 -0700 |
| parents | ffe3630cb243 |
| children | b31266671918 |
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$ "$TESTDIR/hghave" serve || exit 80 Some tests for hgweb in an empty repository $ hg init test $ cd test $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -A access.log -E errors.log $ cat hg.pid >> $DAEMON_PIDS $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'shortlog') 200 Script output follows <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US"> <head> <link rel="icon" href="/static/hgicon.png" type="image/png" /> <meta name="robots" content="index, nofollow" /> <link rel="stylesheet" href="/static/style-paper.css" type="text/css" /> <script type="text/javascript" src="/static/mercurial.js"></script> <title>test: log</title> <link rel="alternate" type="application/atom+xml" href="/atom-log" title="Atom feed for test" /> <link rel="alternate" type="application/rss+xml" href="/rss-log" title="RSS feed for test" /> </head> <body> <div class="container"> <div class="menu"> <div class="logo"> <a href="http://mercurial.selenic.com/"> <img src="/static/hglogo.png" alt="mercurial" /></a> </div> <ul> <li class="active">log</li> <li><a href="/graph/000000000000">graph</a></li> <li><a href="/tags">tags</a></li> <li><a href="/bookmarks">bookmarks</a></li> <li><a href="/branches">branches</a></li> </ul> <ul> <li><a href="/rev/000000000000">changeset</a></li> <li><a href="/file/000000000000">browse</a></li> </ul> <ul> </ul> <ul> <li><a href="/help">help</a></li> </ul> </div> <div class="main"> <h2><a href="/">test</a></h2> <h3>log</h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></p> <div id="hint">find changesets by author, revision, files, or words in the commit message</div> </form> <div class="navigate"> <a href="/shortlog/-1?revcount=30">less</a> <a href="/shortlog/-1?revcount=120">more</a> | rev -1: <a href="/shortlog/000000000000">(0)</a> <a href="/shortlog/tip">tip</a> </div> <table class="bigtable"> <tr> <th class="age">age</th> <th class="author">author</th> <th class="description">description</th> </tr> </table> <div class="navigate"> <a href="/shortlog/-1?revcount=30">less</a> <a href="/shortlog/-1?revcount=120">more</a> | rev -1: <a href="/shortlog/000000000000">(0)</a> <a href="/shortlog/tip">tip</a> </div> </div> </div> <script type="text/javascript">process_dates()</script> </body> </html> $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'log') 200 Script output follows <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US"> <head> <link rel="icon" href="/static/hgicon.png" type="image/png" /> <meta name="robots" content="index, nofollow" /> <link rel="stylesheet" href="/static/style-paper.css" type="text/css" /> <script type="text/javascript" src="/static/mercurial.js"></script> <title>test: log</title> <link rel="alternate" type="application/atom+xml" href="/atom-log" title="Atom feed for test" /> <link rel="alternate" type="application/rss+xml" href="/rss-log" title="RSS feed for test" /> </head> <body> <div class="container"> <div class="menu"> <div class="logo"> <a href="http://mercurial.selenic.com/"> <img src="/static/hglogo.png" alt="mercurial" /></a> </div> <ul> <li class="active">log</li> <li><a href="/graph/000000000000">graph</a></li> <li><a href="/tags">tags</a></li> <li><a href="/bookmarks">bookmarks</a></li> <li><a href="/branches">branches</a></li> </ul> <ul> <li><a href="/rev/000000000000">changeset</a></li> <li><a href="/file/000000000000">browse</a></li> </ul> <ul> </ul> <ul> <li><a href="/help">help</a></li> </ul> </div> <div class="main"> <h2><a href="/">test</a></h2> <h3>log</h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></p> <div id="hint">find changesets by author, revision, files, or words in the commit message</div> </form> <div class="navigate"> <a href="/shortlog/-1?revcount=5">less</a> <a href="/shortlog/-1?revcount=20">more</a> | rev -1: <a href="/shortlog/000000000000">(0)</a> <a href="/shortlog/tip">tip</a> </div> <table class="bigtable"> <tr> <th class="age">age</th> <th class="author">author</th> <th class="description">description</th> </tr> </table> <div class="navigate"> <a href="/shortlog/-1?revcount=5">less</a> <a href="/shortlog/-1?revcount=20">more</a> | rev -1: <a href="/shortlog/000000000000">(0)</a> <a href="/shortlog/tip">tip</a> </div> </div> </div> <script type="text/javascript">process_dates()</script> </body> </html> $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'graph') 200 Script output follows <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US"> <head> <link rel="icon" href="/static/hgicon.png" type="image/png" /> <meta name="robots" content="index, nofollow" /> <link rel="stylesheet" href="/static/style-paper.css" type="text/css" /> <script type="text/javascript" src="/static/mercurial.js"></script> <title>test: revision graph</title> <link rel="alternate" type="application/atom+xml" href="/atom-log" title="Atom feed for test: log" /> <link rel="alternate" type="application/rss+xml" href="/rss-log" title="RSS feed for test: log" /> <!--[if IE]><script type="text/javascript" src="/static/excanvas.js"></script><![endif]--> </head> <body> <div class="container"> <div class="menu"> <div class="logo"> <a href="http://mercurial.selenic.com/"> <img src="/static/hglogo.png" alt="mercurial" /></a> </div> <ul> <li><a href="/shortlog/000000000000">log</a></li> <li class="active">graph</li> <li><a href="/tags">tags</a></li> <li><a href="/bookmarks">bookmarks</a></li> <li><a href="/branches">branches</a></li> </ul> <ul> <li><a href="/rev/000000000000">changeset</a></li> <li><a href="/file/000000000000">browse</a></li> </ul> <ul> <li><a href="/help">help</a></li> </ul> </div> <div class="main"> <h2><a href="/">test</a></h2> <h3>graph</h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></p> <div id="hint">find changesets by author, revision, files, or words in the commit message</div> </form> <div class="navigate"> <a href="/graph/-1?revcount=30">less</a> <a href="/graph/-1?revcount=120">more</a> | rev -1: <a href="/graph/000000000000">(0)</a> <a href="/graph/tip">tip</a> </div> <noscript><p>The revision graph only works with JavaScript-enabled browsers.</p></noscript> <div id="wrapper"> <ul id="nodebgs"></ul> <canvas id="graph" width="480" height="12"></canvas> <ul id="graphnodes"></ul> </div> <script type="text/javascript"> <!-- hide script content var data = []; var graph = new Graph(); graph.scale(39); graph.vertex = function(x, y, color, parity, cur) { this.ctx.beginPath(); color = this.setColor(color, 0.25, 0.75); this.ctx.arc(x, y, radius, 0, Math.PI * 2, true); this.ctx.fill(); var bg = '<li class="bg parity' + parity + '"></li>'; var left = (this.bg_height - this.box_size) + (this.columns + 1) * this.box_size; var nstyle = 'padding-left: ' + left + 'px;'; var tagspan = ''; if (cur[7].length || cur[8].length || (cur[6][0] != 'default' || cur[6][1])) { tagspan = '<span class="logtags">'; if (cur[6][1]) { tagspan += '<span class="branchhead" title="' + cur[6][0] + '">'; tagspan += cur[6][0] + '</span> '; } else if (!cur[6][1] && cur[6][0] != 'default') { tagspan += '<span class="branchname" title="' + cur[6][0] + '">'; tagspan += cur[6][0] + '</span> '; } if (cur[7].length) { for (var t in cur[7]) { var tag = cur[7][t]; tagspan += '<span class="tag">' + tag + '</span> '; } } if (cur[8].length) { for (var b in cur[8]) { var bookmark = cur[8][b]; tagspan += '<span class="tag">' + bookmark + '</span> '; } } tagspan += '</span>'; } var item = '<li style="' + nstyle + '"><span class="desc">'; item += '<a href="/rev/' + cur[0] + '" title="' + cur[0] + '">' + cur[3] + '</a>'; item += '</span>' + tagspan + '<span class="info">' + cur[5] + ', by ' + cur[4] + '</span></li>'; return [bg, item]; } graph.render(data); // stop hiding script --> </script> <div class="navigate"> <a href="/graph/-1?revcount=30">less</a> <a href="/graph/-1?revcount=120">more</a> | rev -1: <a href="/graph/000000000000">(0)</a> <a href="/graph/tip">tip</a> </div> </div> </div> <script type="text/javascript">process_dates()</script> </body> </html> $ ("$TESTDIR/get-with-headers.py" localhost:$HGPORT 'file') 200 Script output follows <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US"> <head> <link rel="icon" href="/static/hgicon.png" type="image/png" /> <meta name="robots" content="index, nofollow" /> <link rel="stylesheet" href="/static/style-paper.css" type="text/css" /> <script type="text/javascript" src="/static/mercurial.js"></script> <title>test: 000000000000 /</title> </head> <body> <div class="container"> <div class="menu"> <div class="logo"> <a href="http://mercurial.selenic.com/"> <img src="/static/hglogo.png" alt="mercurial" /></a> </div> <ul> <li><a href="/shortlog/000000000000">log</a></li> <li><a href="/graph/000000000000">graph</a></li> <li><a href="/tags">tags</a></li> <li><a href="/bookmarks">bookmarks</a></li> <li><a href="/branches">branches</a></li> </ul> <ul> <li><a href="/rev/000000000000">changeset</a></li> <li class="active">browse</li> </ul> <ul> </ul> <ul> <li><a href="/help">help</a></li> </ul> </div> <div class="main"> <h2><a href="/">test</a></h2> <h3>directory / @ -1:000000000000 <span class="tag">tip</span> </h3> <form class="search" action="/log"> <p><input name="rev" id="search1" type="text" size="30" /></p> <div id="hint">find changesets by author, revision, files, or words in the commit message</div> </form> <table class="bigtable"> <tr> <th class="name">name</th> <th class="size">size</th> <th class="permissions">permissions</th> </tr> <tr class="fileline parity0"> <td class="name"><a href="/file/000000000000/">[up]</a></td> <td class="size"></td> <td class="permissions">drwxr-xr-x</td> </tr> </table> </div> </div> <script type="text/javascript">process_dates()</script> </body> </html> $ cd ..