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<!-- subject: Materiały dot. Contiguous Memory Allocator -->

<p>Poniżej znajduje się lista materiałów traktujących o interfejsie Contiguous
Memory Allocator (lub CMA) oraz różnych powiązanych tematach.

<h2>SDI 2013Z</h2>
<p>Prezentacja w języku polskim z seminarium
dyplomowego zawiera trochę mniej materiału niż prezentacja z LCE 2012
i nie zagłębia się w szczegółach dotyczących używania mechanizmu CMA.
Poza prezentacją dostępny jest również referat z bardziej szczegółowym
opisem tematyki prezentacji.</p>
<ul>
  <li><a
          href="https://docs.google.com/file/d/0B_axg5vW_1lgTkFzUWtZdXBLTGs/edit">Prezentacja</a>,
  <a href="https://github.com/mina86/linux-cma/tree/sdi">źródła</a>.</li>
  <li><a
          href="https://docs.google.com/file/d/0B_axg5vW_1lgZVVRLXBzX3ZEWEE/edit">Referat</a>,
  <a
      href="https://github.com/mina86/linux-cma/tree/sdi-paper">źródła</a>.</li>
</ul>

<div lang=en>

<h2 class=en>LinuxCon Europe 2012</h2>

<p>The presentation from the LinuxCon Europe 2012 is <a
href="https://docs.google.com/open?id=0B_axg5vW_1lgdUhZazNCOVVPZms">available
for download</a> along with it's <a
href="https://github.com/mina86/linux-cma/tree/lce">source code</a>.</p>

<h2 class=en>CMA patchset</h2>

<p>The CMA patchset that has been included in Linux 3.5 can be found
on the linux-mm mailing list archives, which can be <a
href="http://thread.gmane.org/gmane.linux.kernel.mm/76241">accessed
via Gmane</a>.</p>

<h2 class=en>Other resources and links</h2>

<p>There are some other resources which may be of interest as well.</p>

<dl>
  <dt>Nazarewicz, Michał (12  March 2012). ‘<a href="https://lwn.net/Articles/486301/">A Deep Dive into CMA</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>A description of the way to integrate CMA with an architecture as well as short summary of how exactly CMA works.</dd>

  <dt>Nazarewicz, Michał (10  June 2012). ‘<a href="/2012/deep-dive-into-contiguous-memory-allocator-part-i/">Dive into Contiguous Memory Allocator, Part I</a>’.</dt>
  <dd>A description of how to use and integrate CMA with an architecture.  It is a first part of an extended version of the above LWN article, and as such it includes much more details.</dd>

  <dt>Song, Barry (7 March 2012). ‘<a href="http://thread.gmane.org/gmane.linux.kernel/1263136">A Simple Kernel Module as a Helper to Test CMA, v. 4</a>’.</dt>
  <dd>A short and simple driver that can be used to test CMA as well as see how it is used.</dd>

  <dt>Corbet, Jonathan (12  June 2011). ‘<a href="https://lwn.net/Articles/447405/">A Reworked Contiguous Memory Allocator</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>An overwiev of the Contiguous Memory Allocator.</dd>

  <dt>Corbet, Jonathan (5 June 2011). ‘<a href="https://lwn.net/Articles/450286/">CMA and ARM</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>An overview of the linear mapping problems CMA had on ARM platforms, and why the early fixups are required.</dd>

  <dt>Kim, Minchan (11 September 2012). ‘<a href="http://article.gmane.org/gmane.linux.kernel.mm/85654">Discard clean pages during contiguous allocation instead of migration</a>’</dt>
  <dd>Patch changing CMA so that clean pages are discarded instead of migrating which improves CMA's performance.</dd>

  <dt>Abbott, Laura (11 September 2012). ‘<a href="http://thread.gmane.org/gmane.linux.ports.arm.msm/3015/">Revoke LRU when trying to drop buffers</a>’</dt>
  <dd>Patch which tries to improve CMA's performance by removing buffer from LRU prior to migration.  The thread also mentiones problem with ext4 not supporting migration of journal pages.</dd>

  <dt>Corbet, Jonathan (6 January 2010). ‘<a href="https://lwn.net/Articles/368869/">Memory Compaction</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>An overview of Mel Gorman's compaction patches.  Compaciotn code is used by CMA for scanning for and migrating non-free pages.</dd>

  <dt>Corbet, Jonathan (8 July 2009) ‘<a href="https://lwn.net/Articles/340080/">Transcendent memory</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>Overwiev of an idea behind and implementation of the transcendent memory.  Such memory can be marked ‘ephemeral’ which means that kernel can discard it if it wishes to.</dd>

  <dt>Corbet, Jonathan (22  November 2011). ‘<a href="https://lwn.net/Articles/468896/">POSIX_FADV_VOLATILE</a>’. <i><a href="https://lwn.net/">Linux Weekly News</a></i> (<a href="http://eklektix.com/">Eklektix</a>)</dt>
  <dd>An overwiev of John Stultz's <tt>POSIX_FADV_VOLATILE</tt> implementation which is one of the things that CMA work with nicely.</dd>
</dl>

<p>Jeżeli wiesz o innych materiałach o CMA lub o tematyce powiązanej do CMA,
śmiało wyślij je do mnie na
adres <a href="mailto:mina86@mina86.com">mina86@mina86.com</a>.

</div>