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<?xml-stylesheet type="text/xsl" href="http://sqlblog.com/utility/FeedStylesheets/rss.xsl" media="screen"?><rss version="2.0" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:slash="http://purl.org/rss/1.0/modules/slash/" xmlns:wfw="http://wellformedweb.org/CommentAPI/"><channel><title>Linchi Shea : NUMA affinity</title><link>http://sqlblog.com/blogs/linchi_shea/archive/tags/NUMA+affinity/default.aspx</link><description>Tags: NUMA affinity</description><dc:language>en</dc:language><generator>CommunityServer 2.1 SP2 (Build: 61129.1)</generator><item><title>Performance impact: the cost of NUMA remote memory access</title><link>http://sqlblog.com/blogs/linchi_shea/archive/2012/01/30/performance-impact-the-cost-of-numa-remote-memory-access.aspx</link><pubDate>Mon, 30 Jan 2012 23:17:20 GMT</pubDate><guid isPermaLink="false">21093a07-8b3d-42db-8cbf-3350fcbf5496:41450</guid><dc:creator>Linchi Shea</dc:creator><slash:comments>10</slash:comments><comments>http://sqlblog.com/blogs/linchi_shea/comments/41450.aspx</comments><wfw:commentRss>http://sqlblog.com/blogs/linchi_shea/commentrss.aspx?PostID=41450</wfw:commentRss><description>These days if you get a new server-class machine to run SQL Server, you can almost be 100% sure that it’ll be running on NUMA hardware. The recent AMD Opteron and Intel Nehalem-based processors are all built on some form of NUMA architecture. The current...(&lt;a href="http://sqlblog.com/blogs/linchi_shea/archive/2012/01/30/performance-impact-the-cost-of-numa-remote-memory-access.aspx"&gt;read more&lt;/a&gt;)&lt;img src="http://sqlblog.com/aggbug.aspx?PostID=41450" width="1" height="1"&gt;</description><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/Performance/default.aspx">Performance</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/Benchmark/default.aspx">Benchmark</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/Memory+speed/default.aspx">Memory speed</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/NUMA/default.aspx">NUMA</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/NUMA+affinity/default.aspx">NUMA affinity</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/Remote+memory+access/default.aspx">Remote memory access</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/Local+memory+access/default.aspx">Local memory access</category></item><item><title>No respect: NUMA affinity meets query parallelism</title><link>http://sqlblog.com/blogs/linchi_shea/archive/2012/01/28/no-respect-numa-affinity-meets-query-parallelism.aspx</link><pubDate>Sat, 28 Jan 2012 05:32:51 GMT</pubDate><guid isPermaLink="false">21093a07-8b3d-42db-8cbf-3350fcbf5496:41396</guid><dc:creator>Linchi Shea</dc:creator><slash:comments>6</slash:comments><comments>http://sqlblog.com/blogs/linchi_shea/comments/41396.aspx</comments><wfw:commentRss>http://sqlblog.com/blogs/linchi_shea/commentrss.aspx?PostID=41396</wfw:commentRss><description>What happens when NUMA affinity meets query parallelism? It gets no respect! SQL Server allows you to affinitize a TCP port to a specific NUMA node or a group of NUMA nodes. Books Online has an article on How to: Map TCP/IP ports to NUMA Nodes . And this...(&lt;a href="http://sqlblog.com/blogs/linchi_shea/archive/2012/01/28/no-respect-numa-affinity-meets-query-parallelism.aspx"&gt;read more&lt;/a&gt;)&lt;img src="http://sqlblog.com/aggbug.aspx?PostID=41396" width="1" height="1"&gt;</description><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/parallelism/default.aspx">parallelism</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/NUMA/default.aspx">NUMA</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/port+affinity/default.aspx">port affinity</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/NUMA+affinity/default.aspx">NUMA affinity</category><category domain="http://sqlblog.com/blogs/linchi_shea/archive/tags/bug/default.aspx">bug</category></item></channel></rss>