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	<id>https://nick-black.com/dankwiki/index.php?action=history&amp;feed=atom&amp;title=RCU</id>
	<title>RCU - revision history</title>
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	<updated>2026-07-11T17:16:43Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=1583&amp;oldid=prev</id>
		<title>Dank at 10:47, 12 November 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=1583&amp;oldid=prev"/>
		<updated>2009-11-12T10:47:26Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw-interface=&quot;&quot;&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:47, 12 November 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;God bless Paul E. McKenney, whose [http://www.rdrop.com/users/paulmck/RCU/RCUdissertation.2004.07.14e1.pdf 2004 dissertation] put on a rigorous footing the grubby claims of many foul patents. RCU, as it is commonly understood to mean, exploits atomicity of aligned pointer writes to provide high-performance (pretty much optimal for a heavy reader bias) reader-writer locks.&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==liburcu==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==liburcu==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The [http://lttng.org/?q=node/18 liburcu] project of the LTTng (Linux Trace Toolkit Next Generation) effort is a userspace RCU library.  &lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;The [http://lttng.org/?q=node/18 liburcu] project of the LTTng (Linux Trace Toolkit Next Generation) effort is a userspace RCU library.  &lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
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	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=1582&amp;oldid=prev</id>
		<title>Dank: /* See also */</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=1582&amp;oldid=prev"/>
		<updated>2009-11-12T10:45:10Z</updated>

		<summary type="html">&lt;p&gt;&lt;span class=&quot;autocomment&quot;&gt;See also&lt;/span&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 10:45, 12 November 2009&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;==See also==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &quot;[http://www.rdrop.com/users/paulmck/RCU/ Introduction to Read-Copy Update]&quot; by Paul McKenney&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/262464/ What is RCU, Fundamentally?]&amp;quot; by Paul McKenney and Jonathan Walpole on LWN 2007-12-17&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/262464/ What is RCU, Fundamentally?]&amp;quot; by Paul McKenney and Jonathan Walpole on LWN 2007-12-17&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html What is RCU?]&amp;quot; by Paul McKenney, extending the previous&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html What is RCU?]&amp;quot; by Paul McKenney, extending the previous&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/253651/ The Design of Preemptible RCU]&amp;quot; by Paul McKenney on LWN 2007-10-08&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/253651/ The Design of Preemptible RCU]&amp;quot; by Paul McKenney on LWN 2007-10-08&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/220677/ Priority-Boosting RCU Read-Side Critical Sections]&amp;quot; by Paul McKenney on LWN 2007-02-05&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/220677/ Priority-Boosting RCU Read-Side Critical Sections]&amp;quot; by Paul McKenney on LWN 2007-02-05&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=420&amp;oldid=prev</id>
		<title>Dank at 05:38, 15 May 2009</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=420&amp;oldid=prev"/>
		<updated>2009-05-15T05:38:26Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 05:38, 15 May 2009&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l6&quot;&gt;Line 6:&lt;/td&gt;
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&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html What is RCU?]&amp;quot; by Paul McKenney, extending the previous&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html What is RCU?]&amp;quot; by Paul McKenney, extending the previous&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/253651/ The Design of Preemptible RCU]&amp;quot; by Paul McKenney on LWN 2007-10-08&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;* &amp;quot;[http://lwn.net/Articles/253651/ The Design of Preemptible RCU]&amp;quot; by Paul McKenney on LWN 2007-10-08&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-side-deleted&quot;&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;&lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;* &quot;[http://lwn.net/Articles/220677/ Priority-Boosting RCU Read-Side Critical Sections]&quot; by Paul McKenney on LWN 2007-02-05&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;

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		<author><name>Dank</name></author>
	</entry>
	<entry>
		<id>https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=419&amp;oldid=prev</id>
		<title>Dank: Created page with &#039;==liburcu== The [http://lttng.org/?q=node/18 liburcu] project of the LTTng (Linux Trace Toolkit Next Generation) effort is a userspace RCU library.   ==See also== * &quot;[http://lwn....&#039;</title>
		<link rel="alternate" type="text/html" href="https://nick-black.com/dankwiki/index.php?title=RCU&amp;diff=419&amp;oldid=prev"/>
		<updated>2009-05-15T05:37:00Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;#039;==liburcu== The [http://lttng.org/?q=node/18 liburcu] project of the LTTng (Linux Trace Toolkit Next Generation) effort is a userspace RCU library.   ==See also== * &amp;quot;[http://lwn....&amp;#039;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;==liburcu==&lt;br /&gt;
The [http://lttng.org/?q=node/18 liburcu] project of the LTTng (Linux Trace Toolkit Next Generation) effort is a userspace RCU library. &lt;br /&gt;
&lt;br /&gt;
==See also==&lt;br /&gt;
* &amp;quot;[http://lwn.net/Articles/262464/ What is RCU, Fundamentally?]&amp;quot; by Paul McKenney and Jonathan Walpole on LWN 2007-12-17&lt;br /&gt;
* &amp;quot;[http://www.rdrop.com/users/paulmck/RCU/whatisRCU.html What is RCU?]&amp;quot; by Paul McKenney, extending the previous&lt;br /&gt;
* &amp;quot;[http://lwn.net/Articles/253651/ The Design of Preemptible RCU]&amp;quot; by Paul McKenney on LWN 2007-10-08&lt;/div&gt;</summary>
		<author><name>Dank</name></author>
	</entry>
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