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    <p>All I read about boost pool is: don't use it at all. The library is rather old (in boost 1.54 all files have copyright 2000 and 2001 except pool_alloc.hpp, which was edited in 2010) You can look <a href="http://bytes.com/topic/c/answers/819883-whats-boost-pool-allocator-good" rel="nofollow">here</a> for an question about performance (look for the answer of James Kanze). If you want only to use boost, I would suggest to use another library. If you need a custom allocator, do benchmarks. </p> <p><em>Edit:</em></p> <p>From <a href="http://www.boost.org/doc/libs/1_54_0/libs/pool/doc/html/boost_pool/pool/introduction.html#boost_pool.pool.introduction.when_should_i_use_pool_" rel="nofollow">Pools docu</a>:</p> <blockquote> <p>In general, use Pools when you need a more efficient way to do unusual memory control. </p> </blockquote> <p>So the qustion is what exactly is unusual memory control? Does it meet your special need to memory? <a href="http://erdani.com/" rel="nofollow">Andrei Alexandrescu</a> has written in "Modern C++ Design" about memory allocation and that there may be very different requirements depending on allocation <strong>and</strong> deallocation patterns. But according to this <a href="http://erdani.com/publications/cuj-2005-12.pdf" rel="nofollow">paper</a> he isn't convinced it was a very good chapter. </p> <p>So for me the final question is wether pool is better than std::allocator for the problems memory management? You have to messure it. Even with litle logic implemented in pool there might be more efficient algorithms for memory management used in your implementation. By the way one of the bugs of pool is <a href="https://svn.boost.org/trac/boost/ticket/7085" rel="nofollow">"Boost pool library it not header only as claimed in documentation"</a>. </p>
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    1. POboost::pool_allocator needs eight static libraries?
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    1. USJan Herrmann
    1. USJan Herrmann
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    1. POboost::pool_allocator needs eight static libraries?
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    1. COBoost::pool_allocator uses the pool with Simple Segregated Storage as a base and doesn't contain very much logic, but considerably improves the speed of code with frequent small heap allocations (only in the release build; in the debug build Boost's pool allocator much slower than the default one). The main overhead with the pool_allocator in terms of additional library dependencies comes from multithreading issues. So it seems that it's worth to use the pool without multithreading and implement one's own synchronization when needed.
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    2. COCan someone advise how to declare the 'pool_allocator' without multithreading (maybe with 'boost::details::pool::null_mutex'?) and with the rest template parameters being default?
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    3. CO@ Jan : thanks, Jan. The paper is very informative and the second link contains the solution to the topic question.
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