Menu
Home
People
Places
Arts
History
Plants & Animals
Science
Life & Culture
Technology
Reference.org
Big memory
open-in-new
<h2 id="details">Details</h2> <p>The performance of big memory systems depends on how the <a href="/facts/Central_processing_units/Jxp1bqMV">central processing units</a> (CPUs) access the memory, via a conventional <a href="/facts/Memory_controller/tHq2zlws">memory controller</a> or via <a href="/facts/Non-uniform_memory_access/MpmN5mN0">non-uniform memory access</a> (NUMA). Performance also depends on the size and design of the <a href="/facts/CPU_cache/x8BYFcdv">CPU cache</a>. </p><p>Performance also depends on <a href="/facts/Operating_system/8XTuvMh2">operating system</a> (OS) design. The <a href="/facts/Huge_pages/CNGruG1H">huge pages</a> feature in Linux and other OSes can improve the efficiency of <a href="/facts/Virtual_memory/Lw2GemF5">virtual memory</a>.<a class="footnote-ref" id="fnref:2" href="#fn:2"><sup>2</sup></a> The <a href="/facts/Transparent_huge_pages/CNGruG1H">transparent huge pages</a> feature in Linux can offer better performance for some big-memory workloads.<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> The "Large-Page Support" in Microsoft Windows enables server applications to establish large-page memory regions which are typically three orders of magnitude larger than the native page size.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Efficient Virtual Memory for Big Memory Servers" (PDF). Retrieved 2016-09-24. <a href="https://research.cs.wisc.edu/multifacet/papers/isca13_direct_segment.pdf" target="_blank">https://research.cs.wisc.edu/multifacet/papers/isca13_direct_segment.pdf</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"Huge pages part 1 (Introduction)". Retrieved 2016-09-24. <a href="https://lwn.net/Articles/374424/" target="_blank">https://lwn.net/Articles/374424/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Transparent huge pages in 2.6.38". Retrieved 2016-09-24. <a href="https://lwn.net/Articles/423584/" target="_blank">https://lwn.net/Articles/423584/</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"Large-Page Support". Retrieved 2016-09-24. <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/aa366720(v=vs.85).aspx" target="_blank">https://msdn.microsoft.com/en-us/library/windows/desktop/aa366720(v=vs.85).aspx</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> </ol>