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      <base href="https://bugs.freedesktop.org/">
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    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - fc-cache failure with /System/Library/Fonts"
   href="https://bugs.freedesktop.org/show_bug.cgi?id=97546">97546</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>fc-cache failure with /System/Library/Fonts
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>fontconfig
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>unspecified
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>x86-64 (AMD64)
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Mac OS X (All)
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>major
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>medium
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>fc-cache
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>fontconfig-bugs@lists.freedesktop.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>ed@motologic.com
          </td>
        </tr>

        <tr>
          <th>QA Contact</th>
          <td>freedesktop@behdad.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Mac folks are seeing major performance issues with fontconfig 2.12.1 and this
post to the fontconfig list by Zhiming Wang has some details about the issue:

  <a href="https://lists.freedesktop.org/archives/fontconfig/2016-August/005811.html">https://lists.freedesktop.org/archives/fontconfig/2016-August/005811.html</a>

In short, fc-cache fails to cache fonts in /System/Library/Fonts and, from then
on, every application that needs to read the cache triggers a cache build
(which fails again). 

I first reported this to the homebrew folks. You can see how this is impacting
performance from sample output here:

  <a href="https://github.com/Homebrew/homebrew-core/issues/4172">https://github.com/Homebrew/homebrew-core/issues/4172</a>

Other posts I've found:

  <a href="https://lists.freedesktop.org/archives/fontconfig/2016-August/005810.html">https://lists.freedesktop.org/archives/fontconfig/2016-August/005810.html</a>
  <a href="https://trac.macports.org/ticket/52088">https://trac.macports.org/ticket/52088</a>

(FYI: "2.12" is not available in the Version field of this bug form).

Let me know if you need anything to help debug this.

Thank you.</pre>
        </div>
      </p>


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