Mercurial > hg

view tests/test-hgweb-descend-empties.t @ 44363:f7459da77f23

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
nodemap: introduce an option to use mmap to read the nodemap mapping The performance and memory benefit is much greater if we don't have to copy all the data in memory for each information. So we introduce an option (on by default) to read the data using mmap. This changeset is the last one definition the API for index support nodemap data. (they have to be able to use the mmaping). Below are some benchmark comparing the best we currently have in 5.3 with the final step of this series (using the persistent nodemap implementation in Rust). The benchmark run `hg perfindex` with various revset and the following variants: Before: * do not use the persistent nodemap * use the CPython implementation of the index for nodemap * use mmapping of the changelog index After: * use the MixedIndex Rust code, with the NodeTree object for nodemap access (still in review) * use the persistent nodemap data from disk * access the persistent nodemap data through mmap * use mmapping of the changelog index The persistent nodemap greatly speed up most operation on very large repositories. Some of the previously very fast lookup end up a bit slower because the persistent nodemap has to be setup. However the absolute slowdown is very small and won't matters in the big picture. Here are some numbers (in seconds) for the reference copy of mozilla-try: Revset Before After abs-change speedup -10000: 0.004622 0.005532 0.000910 × 0.83 -10: 0.000050 0.000132 0.000082 × 0.37 tip 0.000052 0.000085 0.000033 × 0.61 0 + (-10000:) 0.028222 0.005337 -0.022885 × 5.29 0 0.023521 0.000084 -0.023437 × 280.01 (-10000:) + 0 0.235539 0.005308 -0.230231 × 44.37 (-10:) + :9 0.232883 0.000180 -0.232703 ×1293.79 (-10000:) + (:99) 0.238735 0.005358 -0.233377 × 44.55 :99 + (-10000:) 0.317942 0.005593 -0.312349 × 56.84 :9 + (-10:) 0.313372 0.000179 -0.313193 ×1750.68 :9 0.316450 0.000143 -0.316307 ×2212.93 On smaller repositories, the cost of nodemap related operation is not as big, so the win is much more modest. Yet it helps shaving a handful of millisecond here and there. Here are some numbers (in seconds) for the reference copy of mercurial: Revset Before After abs-change speedup -10: 0.000065 0.000097 0.000032 × 0.67 tip 0.000063 0.000078 0.000015 × 0.80 0 0.000561 0.000079 -0.000482 × 7.10 -10000: 0.004609 0.003648 -0.000961 × 1.26 0 + (-10000:) 0.005023 0.003715 -0.001307 × 1.35 (-10:) + :9 0.002187 0.000108 -0.002079 ×20.25 (-10000:) + 0 0.006252 0.003716 -0.002536 × 1.68 (-10000:) + (:99) 0.006367 0.003707 -0.002660 × 1.71 :9 + (-10:) 0.003846 0.000110 -0.003736 ×34.96 :9 0.003854 0.000099 -0.003755 ×38.92 :99 + (-10000:) 0.007644 0.003778 -0.003866 × 2.02 Differential Revision: https://phab.mercurial-scm.org/D7894
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Tue, 11 Feb 2020 11:18:52 +0100
parents 273ce823ba5c
children
line wrap: on
line source

#require serve

Test chains of near empty directories, terminating 3 different ways:
- a1: file at level 4 (deepest)
- b1: two dirs at level 3
- d1: file at level 2

Set up the repo

  $ hg init test
  $ cd test
  $ mkdir -p a1/a2/a3/a4
  $ mkdir -p b1/b2/b3/b4
  $ mkdir -p b1/b2/b3/c4
  $ mkdir -p d1/d2/d3/d4
  $ echo foo > a1/a2/a3/a4/foo
  $ echo foo > b1/b2/b3/b4/foo
  $ echo foo > b1/b2/b3/c4/foo
  $ echo foo > d1/d2/d3/d4/foo
  $ echo foo > d1/d2/foo
  $ hg ci -Ama
  adding a1/a2/a3/a4/foo
  adding b1/b2/b3/b4/foo
  adding b1/b2/b3/c4/foo
  adding d1/d2/d3/d4/foo
  adding d1/d2/foo
  $ hg serve -n test -p $HGPORT -d --pid-file=hg.pid -E errors.log
  $ cat hg.pid >> $DAEMON_PIDS

manifest with descending (paper)

  $ get-with-headers.py $LOCALIP:$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: c9f45f7a1659 /</title>
  </head>
  <body>
  
  <div class="container">
  <div class="menu">
  <div class="logo">
  <a href="https://mercurial-scm.org/">
  <img src="/static/hglogo.png" alt="mercurial" /></a>
  </div>
  <ul>
  <li><a href="/shortlog/tip">log</a></li>
  <li><a href="/graph/tip">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/tip">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 class="breadcrumb"><a href="/">Mercurial</a> </h2>
  <h3>
   directory / @ 0:<a href="/rev/c9f45f7a1659">c9f45f7a1659</a>
   <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> 
  </h3>
  
  
  <form class="search" action="/log">
  
  <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
  </form>
  
  <table class="bigtable">
  <thead>
  <tr>
    <th class="name">name</th>
    <th class="size">size</th>
    <th class="permissions">permissions</th>
  </tr>
  </thead>
  <tbody class="stripes2">
  
  
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/a1">
  <img src="/static/coal-folder.png" alt="dir."/> a1/
  </a>
  <a href="/file/tip/a1/a2/a3/a4">
  a2/a3/a4
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/b1">
  <img src="/static/coal-folder.png" alt="dir."/> b1/
  </a>
  <a href="/file/tip/b1/b2/b3">
  b2/b3
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/d1">
  <img src="/static/coal-folder.png" alt="dir."/> d1/
  </a>
  <a href="/file/tip/d1/d2">
  d2
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  
  </tbody>
  </table>
  </div>
  </div>
  
  
  </body>
  </html>
  

manifest with descending (coal)

  $ get-with-headers.py $LOCALIP:$HGPORT 'file?style=coal'
  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" />
  <link rel="stylesheet" href="/static/style-extra-coal.css" type="text/css" />
  <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <title>test: c9f45f7a1659 /</title>
  </head>
  <body>
  
  <div class="container">
  <div class="menu">
  <div class="logo">
  <a href="https://mercurial-scm.org/">
  <img src="/static/hglogo.png" alt="mercurial" /></a>
  </div>
  <ul>
  <li><a href="/shortlog/tip?style=coal">log</a></li>
  <li><a href="/graph/tip?style=coal">graph</a></li>
  <li><a href="/tags?style=coal">tags</a></li>
  <li><a href="/bookmarks?style=coal">bookmarks</a></li>
  <li><a href="/branches?style=coal">branches</a></li>
  </ul>
  <ul>
  <li><a href="/rev/tip?style=coal">changeset</a></li>
  <li class="active">browse</li>
  </ul>
  <ul>
  
  </ul>
  <ul>
   <li><a href="/help?style=coal">help</a></li>
  </ul>
  </div>
  
  <div class="main">
  <h2 class="breadcrumb"><a href="/">Mercurial</a> </h2>
  <h3>
   directory / @ 0:<a href="/rev/c9f45f7a1659?style=coal">c9f45f7a1659</a>
   <span class="phase">draft</span> <span class="branchhead">default</span> <span class="tag">tip</span> 
  </h3>
  
  
  <form class="search" action="/log">
  <input type="hidden" name="style" value="coal" />
  <p><input name="rev" id="search1" type="text" size="30" value="" /></p>
  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
  </form>
  
  <table class="bigtable">
  <thead>
  <tr>
    <th class="name">name</th>
    <th class="size">size</th>
    <th class="permissions">permissions</th>
  </tr>
  </thead>
  <tbody class="stripes2">
  
  
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/a1?style=coal">
  <img src="/static/coal-folder.png" alt="dir."/> a1/
  </a>
  <a href="/file/tip/a1/a2/a3/a4?style=coal">
  a2/a3/a4
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/b1?style=coal">
  <img src="/static/coal-folder.png" alt="dir."/> b1/
  </a>
  <a href="/file/tip/b1/b2/b3?style=coal">
  b2/b3
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  <tr class="fileline">
  <td class="name">
  <a href="/file/tip/d1?style=coal">
  <img src="/static/coal-folder.png" alt="dir."/> d1/
  </a>
  <a href="/file/tip/d1/d2?style=coal">
  d2
  </a>
  </td>
  <td class="size"></td>
  <td class="permissions">drwxr-xr-x</td>
  </tr>
  
  </tbody>
  </table>
  </div>
  </div>
  
  
  </body>
  </html>
  

manifest with descending (monoblue)

  $ get-with-headers.py $LOCALIP:$HGPORT 'file?style=monoblue'
  200 Script output follows
  
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
  <head>
      <link rel="icon" href="/static/hgicon.png" type="image/png" />
      <meta name="robots" content="index, nofollow"/>
      <link rel="stylesheet" href="/static/style-monoblue.css" type="text/css" />
      <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <title>test: files</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 id="container">
      <div class="page-header">
          <h1 class="breadcrumb"><a href="/">Mercurial</a>  / files</h1>
  
          
  <form action="/log">
  <input type="hidden" name="style" value="monoblue" />
  <dl class="search">
  <dt><label>Search: </label></dt>
  <dd><input type="text" name="rev" value="" /></dd>
  </dl>
  </form>
  
          <ul class="page-nav">
              <li><a href="/summary?style=monoblue">summary</a></li>
              <li><a href="/shortlog?style=monoblue">shortlog</a></li>
              <li><a href="/changelog?style=monoblue">changelog</a></li>
              <li><a href="/graph/tip?style=monoblue">graph</a></li>
              <li><a href="/tags?style=monoblue">tags</a></li>
              <li><a href="/bookmarks?style=monoblue">bookmarks</a></li>
              <li><a href="/branches?style=monoblue">branches</a></li>
              <li class="current">files</li>
              <li><a href="/help?style=monoblue">help</a></li>
          </ul>
      </div>
  
      <ul class="submenu">
          <li><a href="/rev/tip?style=monoblue">changeset</a></li>
          
      </ul>
  
      <h2 class="no-link no-border">files</h2>
      <p class="files">/ <span class="logtags"><span class="phasetag" title="draft">draft</span> <span class="branchtag" title="default">default</span> <span class="tagtag" title="tip">tip</span> </span></p>
  
      <table>
          
          
  <tr class="parity1">
  <td>drwxr-xr-x</td>
  <td></td>
  <td></td>
  <td>
  <a href="/file/tip/a1?style=monoblue">a1</a>
  <a href="/file/tip/a1/a2/a3/a4?style=monoblue">a2/a3/a4</a>
  </td>
  <td><a href="/file/tip/a1?style=monoblue">files</a></td>
  </tr>
  <tr class="parity0">
  <td>drwxr-xr-x</td>
  <td></td>
  <td></td>
  <td>
  <a href="/file/tip/b1?style=monoblue">b1</a>
  <a href="/file/tip/b1/b2/b3?style=monoblue">b2/b3</a>
  </td>
  <td><a href="/file/tip/b1?style=monoblue">files</a></td>
  </tr>
  <tr class="parity1">
  <td>drwxr-xr-x</td>
  <td></td>
  <td></td>
  <td>
  <a href="/file/tip/d1?style=monoblue">d1</a>
  <a href="/file/tip/d1/d2?style=monoblue">d2</a>
  </td>
  <td><a href="/file/tip/d1?style=monoblue">files</a></td>
  </tr>
          
      </table>
  
      <div class="page-footer">
          <p>Mercurial Repository: test</p>
          <ul class="rss-logo">
              <li><a href="/rss-log">RSS</a></li>
              <li><a href="/atom-log">Atom</a></li>
          </ul>
          
      </div>
  
      <div id="powered-by">
          <p><a href="https://mercurial-scm.org/" title="Mercurial"><img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial" /></a></p>
      </div>
  
  </div>
  
  </body>
  </html>
  

manifest with descending (gitweb)

  $ get-with-headers.py $LOCALIP:$HGPORT 'file?style=gitweb'
  200 Script output follows
  
  <?xml version="1.0" encoding="ascii"?>
  <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
  <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en-US" 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-gitweb.css" type="text/css" />
  <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <title>test: files</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="page_header">
  <a href="https://mercurial-scm.org/" title="Mercurial" style="float: right;">Mercurial</a>
  <a href="/">Mercurial</a>  / files
  </div>
  
  <div class="page_nav">
  <div>
  <a href="/summary?style=gitweb">summary</a> |
  <a href="/shortlog?style=gitweb">shortlog</a> |
  <a href="/log?style=gitweb">changelog</a> |
  <a href="/graph?style=gitweb">graph</a> |
  <a href="/tags?style=gitweb">tags</a> |
  <a href="/bookmarks?style=gitweb">bookmarks</a> |
  <a href="/branches?style=gitweb">branches</a> |
  files |
  <a href="/rev/tip?style=gitweb">changeset</a>  |
  <a href="/help?style=gitweb">help</a>
  </div>
  
  <div class="search">
  <form id="searchform" action="/log">
  <input type="hidden" name="style" value="gitweb" />
  <input name="rev" type="text" value="" size="40" />
  <div id="hint">Find changesets by keywords (author, files, the commit message), revision
  number or hash, or <a href="/help/revsets">revset expression</a>.</div>
  </form>
  </div>
  </div>
  
  <div class="title">/ <span class="logtags"><span class="phasetag" title="draft">draft</span> <span class="branchtag" title="default">default</span> <span class="tagtag" title="tip">tip</span> </span></div>
  <table cellspacing="0">
  
  
  <tr class="parity1">
  <td style="font-family:monospace">drwxr-xr-x</td>
  <td style="font-family:monospace"></td>
  <td style="font-family:monospace"></td>
  <td>
  <a href="/file/tip/a1?style=gitweb">a1</a>
  <a href="/file/tip/a1/a2/a3/a4?style=gitweb">a2/a3/a4</a>
  </td>
  <td class="link">
  <a href="/file/tip/a1?style=gitweb">files</a>
  </td>
  </tr>
  <tr class="parity0">
  <td style="font-family:monospace">drwxr-xr-x</td>
  <td style="font-family:monospace"></td>
  <td style="font-family:monospace"></td>
  <td>
  <a href="/file/tip/b1?style=gitweb">b1</a>
  <a href="/file/tip/b1/b2/b3?style=gitweb">b2/b3</a>
  </td>
  <td class="link">
  <a href="/file/tip/b1?style=gitweb">files</a>
  </td>
  </tr>
  <tr class="parity1">
  <td style="font-family:monospace">drwxr-xr-x</td>
  <td style="font-family:monospace"></td>
  <td style="font-family:monospace"></td>
  <td>
  <a href="/file/tip/d1?style=gitweb">d1</a>
  <a href="/file/tip/d1/d2?style=gitweb">d2</a>
  </td>
  <td class="link">
  <a href="/file/tip/d1?style=gitweb">files</a>
  </td>
  </tr>
  
  </table>
  
  <div class="page_footer">
  <div class="page_footer_text">test</div>
  <div class="rss_logo">
  <a href="/rss-log">RSS</a>
  <a href="/atom-log">Atom</a>
  </div>
  <br />
  
  </div>
  </body>
  </html>
  

manifest with descending (spartan)

  $ get-with-headers.py $LOCALIP:$HGPORT 'file?style=spartan'
  200 Script output follows
  
  <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
  <html>
  <head>
  <link rel="icon" href="/static/hgicon.png" type="image/png">
  <meta name="robots" content="index, nofollow" />
  <link rel="stylesheet" href="/static/style.css" type="text/css" />
  <script type="text/javascript" src="/static/mercurial.js"></script>
  
  <title>test: files for changeset c9f45f7a1659</title>
  </head>
  <body>
  
  <div class="buttons">
  <a href="/log/tip?style=spartan">changelog</a>
  <a href="/shortlog/tip?style=spartan">shortlog</a>
  <a href="/graph/tip?style=spartan">graph</a>
  <a href="/tags?style=spartan">tags</a>
  <a href="/branches?style=spartan">branches</a>
  <a href="/rev/tip?style=spartan">changeset</a>
  
  <a href="/help?style=spartan">help</a>
  </div>
  
  <h2><a href="/">Mercurial</a>  / files for changeset <a href="/rev/c9f45f7a1659">c9f45f7a1659</a>: /</h2>
  
  <table cellpadding="0" cellspacing="0">
  
  
  <tr class="parity1">
  <td><tt>drwxr-xr-x</tt>&nbsp;</td>
  <td>&nbsp;</td>
  <td>&nbsp;</td>
  <td>
  <a href="/file/tip/a1?style=spartan">a1/</a>
  <a href="/file/tip/a1/a2/a3/a4?style=spartan">
  a2/a3/a4
  </a>
  </td>
  </tr>
  <tr class="parity0">
  <td><tt>drwxr-xr-x</tt>&nbsp;</td>
  <td>&nbsp;</td>
  <td>&nbsp;</td>
  <td>
  <a href="/file/tip/b1?style=spartan">b1/</a>
  <a href="/file/tip/b1/b2/b3?style=spartan">
  b2/b3
  </a>
  </td>
  </tr>
  <tr class="parity1">
  <td><tt>drwxr-xr-x</tt>&nbsp;</td>
  <td>&nbsp;</td>
  <td>&nbsp;</td>
  <td>
  <a href="/file/tip/d1?style=spartan">d1/</a>
  <a href="/file/tip/d1/d2?style=spartan">
  d2
  </a>
  </td>
  </tr>
  
  </table>
  
  <div class="logo">
  <a href="https://mercurial-scm.org/">
  <img src="/static/hglogo.png" width=75 height=90 border=0 alt="mercurial"></a>
  </div>
  
  </body>
  </html>
  

  $ cat errors.log

  $ cd ..