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copied!<p>Unless your application is multithreaded you probably shouldn't bother. <a href="http://developers.sun.com/solaris/articles/multiproc/multiproc.html" rel="nofollow noreferrer">This article suggests (for one platform, at least) that <code>malloc</code> performs quite competitively in a single threaded environment</a>.</p> <blockquote> <p>So, which allocator should you use in your application? <code>malloc</code> on the Solaris OS was shown to be a strong choice for single-threaded code.</p> <p><img src="https://i.stack.imgur.com/2A6mv.gif" alt="Note the first case"></p> <p><img src="https://i.stack.imgur.com/zke7L.gif" alt="Note the first case"></p> </blockquote> <p>You'll be hard pressed to do better than <code>malloc</code> or its very similar functions. If you want better memory allocation you can wrap <code>malloc</code> or call the operating system memory allocation functions (but lose out on portability) and place your own allocation logic on top of chunks of memory.</p> <p>If you <em>really</em> need a better memory allocator, try <a href="http://www.hoard.org/" rel="nofollow noreferrer">Hoard</a>:</p> <blockquote> <p>The Hoard memory allocator is a fast, scalable, and memory-efficient memory allocator for Linux, Solaris, Mac OS X, and Windows. Hoard is a drop-in replacement for malloc that can dramatically improve application performance, especially for multithreaded programs running on multiprocessors and multicore CPUs.</p> <p><img src="https://i.stack.imgur.com/m8Sxi.gif" alt="Benchmark"></p> </blockquote> <p>Note that <a href="http://plasma.cs.umass.edu/emery/licensing-hoard" rel="nofollow noreferrer">it's not necessarily free</a>. If you want a free one, try <a href="https://stackoverflow.com/questions/147298/multithreaded-memory-allocators-for-c-c">one of these</a>.</p>

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